A kind of stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk and preparation method thereof

Abstract

The invention belongs to the technical field of food processing, and specifically relates to a stomach-nourishing and spleen-strengthening selenium-enriched nutritious rice milk and a preparation method thereof. The stomach-nourishing and spleen-strengthening selenium-enriched nutritious rice milk comprises the following raw materials in parts by weight: 40-80 parts of selenium-enriched rice flour, 1-2 parts of yam powder, 1-2 parts of coix seed powder, 1-2 parts of Euryale powder, 1-2 parts of oat flour, and 2-10 parts of whole milk powder. The preparation process of the invention is simple and easy to implement, easy to industrialize, and the prepared rice milk is delicious, has good dispersibility, and the nutrients are easily dissolved, has a good taste, is delicate and easy to absorb, has the effect of nourishing the stomach and spleen, and can retain the selenium content to the maximum extent.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing, and in particular relates to a stomach-nourishing, spleen-strengthening, selenium-enriched nutritious rice milk and a preparation method thereof. Background Art

[0002] With the rapid development of modern economy and society, people's pace of life has accelerated, work has become busy, mental pressure has increased, the amount of exercise has decreased, and eating irregularly may cause a series of diseases such as gastritis, gastric ulcers, and even gastric cancer. Gastric disease is "three parts treatment and seven parts care", and care is the key. Therefore, developing a ready-to-eat nutritious rice milk with the function of strengthening the spleen and nourishing the stomach can not only play the role of food therapy, but also be easy to carry and eat, and has broad market prospects.

[0003] Selenium is an essential trace element for the human body, and has biological activities such as anti-cancer, anti-aging and improving human immunity. Selenium-rich agricultural products are one of the main ways for people to ingest selenium, especially rice, which is the staple food of the vast majority of people in my country and is one of the important sources of selenium. At present, there are many selenium-rich rice products on the market, such as selenium-rich rice, selenium-rich instant rice, selenium-rich rice noodles, selenium-rich rice paste, etc. However, the processing method of selenium-rich rice products is different from the method of steaming rice at home. The processing technology of industrialized selenium-rich rice products, such as rice washing, soaking, draining, heating, gelatinization and other steps, will not only affect the quality of the final product, but also cause the destruction of the selenium form in rice and the loss of selenium, resulting in a low retention rate of selenium, especially high damage to organic selenium.

[0004] Therefore, developing a rice product with the effect of nourishing the stomach and spleen and a high selenium retention rate is of great significance for enhancing immunity, relieving fatigue, regulating sub-health status and preventing spleen and stomach diseases. Summary of the invention

[0005] The purpose of the present invention is to solve the deficiencies in the prior art and provide a stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk and a preparation method thereof, which specifically adopts the following technical scheme:

[0006] The first aspect of the present invention provides a stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk, which is made from the following raw materials in parts by weight:

[0007] 40-80 parts of selenium-rich rice flour, 1-2 parts of yam flour, 1-2 parts of coix seed flour, 1-2 parts of Euryale ferox flour, 1-2 parts of oat flour, and 2-10 parts of whole milk powder.

[0008] The selenium content in the above-mentioned stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk is 40 μg / kg~61 μg / kg.

[0009] The present invention adopts selenium-enriched rice powder as the main raw material, and at the same time, a small amount of Chinese yam, coix seed, Euryale ferox and oats are matched to make a kind of selenium-enriched nutritious rice milk for nourishing the stomach and strengthening the spleen. Chinese yam, coix seed, Euryale ferox and oats are foods of the same origin as medicine and food, and are ideal spleen-strengthening and tranquilizing products. Chinese yam has the effects of nourishing the stomach and spleen, astringing essence and stopping diarrhea, benefiting the lungs and producing body fluid, can improve digestive function, delay aging, and regulate immunity. Coix seed has the effects of promoting diuresis and reducing swelling, strengthening the spleen and removing dampness, clearing away heat and discharging pus, anti-inflammatory and analgesic, and enhancing immunity. Euryale ferox is sweet, astringent and astringent, flat and not biased, enters the spleen and kidney meridians, has a mild medicinal effect, can nourish the spleen and remove dampness, benefit the kidney and consolidate essence, and has the advantages of nourishing without being greasy, astringent and not leaving dampness. Oats are sweet and flat in nature and flavor, can benefit the spleen and nourish the heart, astringent sweat, rich in dietary fiber, and have the effects of lowering cholesterol, stabilizing blood sugar, maintaining metabolism and the like. The selenium-rich nutritious rice milk prepared by the invention solves the problem that modern people are busy with study and work and do not have enough time and energy to carry out conditioning through complicated maintenance methods. In addition, it solves a series of problems such as yam, coix seed, Euryale ferox and oatmeal are inconvenient to eat and are prone to moisture absorption, rot, insect infestation and mildew due to improper storage.

[0010] Japonica rice is a traditional food with a long history of processing and utilization. Japonica rice belongs to the spleen and stomach meridians, replenishes the middle and replenishes qi, strengthens the spleen and nourishes the stomach, and is used for weak constitution, recovery after illness, and neurasthenia. Japonica rice can be used to make rice milk, which is rich in nutrition and easy to digest. It is suitable for thirst, stomachache, and loss of appetite. Selenium is an essential trace element for the human body and can effectively prevent more than 40 diseases. Supplementing selenium through daily staple foods (such as rice) is recognized as the most direct, effective, economical and safe way. More than 80% of the selenium in selenium-rich japonica rice is organic selenium, mainly in the form of selenomethionine, of which more than 53% of organic selenium is bound to protein, followed by polysaccharide selenium and RNA selenium, accounting for about 9% and 2% respectively. It has high nutritional value and has many health benefits, but there is a lack of high value-added selenium-rich rice products on the market.

[0011] In a second aspect of the present invention, a method for preparing the above-mentioned stomach-nourishing, spleen-strengthening, selenium-enriched nutritious rice milk is provided, comprising the following steps:

[0012] Step 1: washing the selenium-rich rice 1 to 3 times, drying it, and then baking the dried selenium-rich rice until the selenium-rich rice is slightly yellow and has a faint rice fragrance; the organic selenium content of the selenium-rich rice is 60 μg / kg to 85 μg / kg; the drying temperature is 100°C to 150°C, and the time is 10 min to 17 min; the baking temperature is 150°C to 220°C, and the time is 3 min to 10 min;

[0013] Step 2: Grind the Chinese yam, coix seed, Euryale ferox, oatmeal and the selenium-enriched rice baked in step 1 respectively, and then pass them through a 60-100 mesh sieve respectively to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and selenium-enriched rice powder respectively;

[0014] Step 3: grinding the yam powder, coix seed powder, euryale powder, oatmeal powder and selenium-enriched rice powder obtained in step 2 in a ball mill to obtain ball-milled yam powder, coix seed powder, euryale powder, oatmeal powder and selenium-enriched rice powder;

[0015] Step 4: Weigh 40-80 parts of the selenium-rich rice powder in step 3, add water, and then boil and stir until the selenium-rich rice powder has uniform particle size and no lumps, boil until boiling, and obtain selenium-rich rice slurry; the ratio of the selenium-rich rice powder to the water is 1:15-20;

[0016] Step 5: Weigh 1-2 parts of yam powder, 1-2 parts of coix seed powder, 1-2 parts of Euryale powder, and 1-2 parts of oatmeal powder in step 3, mix to obtain food and medicine powder, add water, and then boil and stir until the food and medicine powder has uniform particle size and no lumps, boil until boiling, and obtain food and medicine slurry; the ratio of the food and medicine powder to the water is 1:15-20;

[0017] Step 6: Weigh 2 to 10 parts of milk powder, add hot water at a ratio of 1:6 to 8, and stir to obtain milk powder slurry;

[0018] Step 7: mixing the selenium-enriched rice slurry of step 4, the medicine-food slurry of step 5 and the milk powder slurry of step 6 at a weight ratio of 20-40:2-4:1 to obtain a mixed slurry, and then adding other auxiliary materials in a certain proportion, mixing, to obtain a selenium-enriched rice emulsion; the auxiliary materials and their proportions are 0.01-0.05% potassium sorbate, 0.01-0.05% sodium benzoate, 0.05-0.1% monoglyceride, 0.02-0.04% composite phosphate, 0.03-0.06% salt, and 2-4% sucrose;

[0019] Step 8: The selenium-rich rice emulsion in step 7 is first subjected to a colloid mill to make it uniformly miscible, and then treated with an ultra-high pressure microfluidizer to obtain a selenium-rich rice emulsion;

[0020] Step 9: Fill the selenium-rich rice milk obtained in step 8, and then place it in a reverse pressure sterilizer for sterilization, so as to finally obtain the stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk.

[0021] As a further preferred embodiment, the organic selenium content of the selenium-enriched rice in the above step 1 is 85 μg / kg.

[0022] As a further preferred embodiment, the baking temperature in step 1 is 200° C. and the baking time is 5 min.

[0023] Under the drying and baking conditions in step 1, the selenium content in the selenium-rich rice can be retained to the maximum extent, and the loss of selenium caused by excessively high temperature, too long or too short a time can be reduced.

[0024] The ultra-high pressure microfluidizer treatment in the above steps can change the solubility, swelling and rheological properties of rice starch, thereby obtaining a selenium-enriched rice emulsion with smaller particles, better solubility, finer taste and higher selenium retention rate.

[0025] As a further preferred embodiment, the yam, coix seed, Euryale ferox, oatmeal in step 2 and the selenium-rich rice baked in step 1 are crushed and sieved through an 80-mesh sieve. As a further preferred embodiment, the grinding ball diameter of the ball mill in step 3 is 10 nm, the fixed ball milling ratio is 5:1, the grinding speed is 300 r / min, and the grinding time is 1 h. Ball milling has the advantages of refining materials, increasing material surface area, and high resource utilization, making selenium in rice easier to release and dissolve, thereby improving the selenium retention rate in the product.

[0026] As a further preferred embodiment, in step 7, the auxiliary materials and their proportions are potassium sorbate 0.05%, sodium benzoate 0.05%, monoglyceride 0.1%, composite phosphate 0.04%, salt 0.06% and sucrose 4%. In step 7, the auxiliary materials potassium sorbate and sodium benzoate have antibacterial effects, which can extend the shelf life of selenium-enriched rice milk, and their addition ratio is the standard of additives in reference to the national standard. Monoglyceride has good emulsification, can improve the uniformity of selenium-enriched rice milk, and make its taste more delicate. The uniformity of selenium-enriched rice milk is best under this addition ratio. The effect of composite phosphate and edible salt is to increase the flavor of the product and improve the taste of selenium-enriched rice milk. If too little is added, the product flavor will not be significantly improved, and too much addition will cause the product to be too salty. The main effect of sucrose is to increase the sweetness of the product. The sweetness of selenium-enriched rice milk under this ratio is suitable, and it will not be too sweet or too light.

[0027] As a further preferred embodiment, the weight ratio of rice slurry, edible and medicinal slurry, and milk powder slurry in the mixed slurry obtained in step 7 is 20:2:1. The ratio is determined by sensory evaluation, mainly including sensory, taste, organization and fragrance. The product obtained by this ratio has the best sensory evaluation, which is mainly manifested in the good uniformity of rice milk, rich rice aroma, fine organization, no stratification, and the best taste. Too high a proportion of milk powder will cause the milk flavor to be too strong, covering up the rice aroma; too high a proportion of edible and medicinal slurry will cause the drug to be too heavy, even slightly bitter, affecting the taste; keeping a certain proportion of rice slurry can meet the conditions for selenium supplementation, and maintain a smooth taste to avoid excessive rice paste taste.

[0028] As a further preferred embodiment, in step 8, the ultrahigh pressure microfluidizer treatment pressure is 100 MPa, the homogenization time is 4 min, and the homogenization times are 3 times. The treatment methods of different strengths for rice slurry will produce different destructive effects on the rice endosperm cell wall. Starch and protein in rice are mainly tightly combined in the form of starch body and protein body, and the protein body is closely distributed around the starch body. Due to the characteristics of rice storage protein and starch itself insolubility, when the ground mixture is dispersed in the solution, starch is separated from the combination and the granularity of starch is reduced. It is necessary to select a suitable destructive strength for separation. Too little or too weak homogenization destructive effect is not enough, and too much or too strong homogenization will cause part of the protein to re-aggregate and settle, resulting in weakening of the separation effect.

[0029] As a further preferred embodiment, the sterilization temperature is 110°C to 125°C, and the time is 15 to 30 minutes. More preferably, the sterilization temperature is 121°C, and the time is 15 minutes. If the sterilization temperature is too high, the taste and flavor of the rice milk will be affected, resulting in the loss of nutrients. If the sterilization temperature is too low, the microorganisms in the rice milk cannot be effectively killed to ensure its safety.

[0030] The beneficial effects of the present invention are as follows: (1) the stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk prepared by the present invention has moderate viscosity, is white or off-white, has uniform color, good gloss, uniform texture, no lumps, rich and long-lasting taste, delicate taste, moderate sweetness, and strong rice aroma. It is a product with comprehensive nutrition, unique taste, and convenient consumption, and has the effects of nourishing the stomach and strengthening the spleen;

[0031] (2) Selenium-enriched rice is roasted and then ball-milled for microfluidization homogenization. The roasting process affects the final sensory evaluation of rice milk, and the roasted rice milk has a stronger rice flavor.

[0032] (3) The present invention innovatively uses ball milling technology and dynamic high-pressure microfluidization technology to prepare rice milk for the first time. Both ball milling and microfluidization can make rice finer, more soluble, and have a higher selenium retention rate. Ball milling tends to make selenium easier to dissolve and have a higher retention rate, while microfluidization tends to make selenium more soluble and have a more delicate taste. The combination of the two makes the product's nutrients easier to dissolve, and the selenium content in the rice milk is retained to the maximum extent;

[0033] (4) The raw materials of the present invention are easily available, the preparation method is simple, and it is easy to industrialize. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a picture of selenium-rich rice milk product. DETAILED DESCRIPTION

[0035] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, scheme and effect of the present invention.

[0036] Example 1

[0037] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0038] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg twice, put it into the oven for drying, set the upper and lower fire temperatures of the oven to 100 °C, and the baking time to 17 min;

[0039] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0040] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0041] 4) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding, with a grinding ball diameter of 10 mm, a fixed ball milling ratio of 5:1, a grinding speed of 300 r / min, and a grinding time of 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively;

[0042] 5) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0043] 6) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0044] 7) Dynamic high-pressure microfluidization treatment: The prepared selenium-enriched rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with ultra-high-pressure microfluidization at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain rice emulsion;

[0045] 8) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121°C, 15 min.

[0046] Example 2

[0047] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0048] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 60 μg / kg once, and then put it into the oven for drying. Set the upper and lower fire temperatures of the oven to 100°C and the baking time to 17 min.

[0049] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0050] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through a 60-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0051] 4) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding. The diameter of the grinding ball was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively.

[0052] 5) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:15, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:15, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, add hot water at a ratio of 1:6, and stir to obtain milk powder slurry;

[0053] 6) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are in the proportions of 0.01% potassium sorbate, 0.01% sodium benzoate, 0.05% monoglyceride, 0.02% composite phosphate, 0.03% salt, and 2% sucrose;

[0054] 7) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion.

[0055] 8) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0056] Example 3

[0057] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0058] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 73 μg / kg twice, put it into the oven for drying, set the upper and lower fire temperatures of the oven to 100°C, and the baking time is 17 min;

[0059] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0060] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and grinding them, passing through a 100-mesh sieve, to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0061] 4) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding. The diameter of the grinding ball was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively.

[0062] 5) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:20, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:20, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:8, and stir to obtain milk powder slurry;

[0063] 6) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0064] 7) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion.

[0065] 8) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0066] Comparative Example 1

[0067] A rice milk, the preparation method of which comprises the following steps:

[0068] 1) Washing and drying: Wash the non-selenium-enriched rice twice, put it in the oven for drying, set the upper and lower fire temperatures of the oven to 100°C, and the baking time is 17 min;

[0069] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0070] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0071] 4) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding. The diameter of the grinding ball was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively.

[0072] 5) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0073] 6) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0074] 7) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion.

[0075] 8) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0076] Comparative Example 2

[0077] A rice milk, the preparation method of which comprises the following steps:

[0078] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg once, and then put it into the oven for drying. Set the upper and lower fire temperatures of the oven to 100°C and the baking time to 17 min.

[0079] 2) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and grinding them, passing through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0080] 3) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding. The diameter of the grinding ball was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively.

[0081] 4) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0082] 5) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are in the proportions of 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0083] 6) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion slurry.

[0084] 7) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0085] Comparative Example 3

[0086] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0087] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg twice, put it into the oven for drying, set the upper and lower fire temperatures of the oven to 100°C, and the baking time is 17 min;

[0088] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0089] 3) preparing rice flour: putting the roasted rice into a grinder and grinding it, and passing it through an 80-mesh sieve to obtain rice flour;

[0090] 4) Ball milling: The prepared rice flour was placed in a ball mill for grinding. The grinding ball diameter was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour.

[0091] 5) Cooking slurry: weigh 64 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling to obtain rice slurry; weigh 5 parts of milk powder, add hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0092] 6) Slurry preparation: weigh and mix rice slurry and milk powder slurry in a weight ratio of 22:1 to obtain a mixed slurry, then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain selenium-enriched rice emulsion; the auxiliary materials are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt and 4% sucrose;

[0093] 7) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion.

[0094] 8) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0095] Comparative Example 4

[0096] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0097] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg twice, put it into the oven for drying, set the upper and lower fire temperatures of the oven to 100°C, and the baking time is 17 min;

[0098] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0099] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0100] 4) Ball milling: The prepared rice flour and edible and medicinal powder were respectively put into a ball mill for grinding. The diameter of the grinding ball was 10 mm, the fixed ball milling grind-to-material ratio was 5:1, the grinding speed was 300 r / min, and the grinding time was 1 h to obtain ball-milled rice flour and edible and medicinal powder, respectively.

[0101] 5) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0102] 6) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0103] 7) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0104] Comparative Example 5

[0105] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0106] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg once, and then put it into the oven for drying. Set the upper and lower fire temperatures of the oven to 100°C and the baking time to 17 min.

[0107] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0108] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0109] 4) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0110] 5) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are in the proportions of 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0111] 6) Dynamic high-pressure microfluidization treatment: The prepared selenium-rich rice emulsion is first treated with a colloid mill to make it uniformly mixed, and then treated with an ultra-high-pressure microfluidizer at a pressure of 100 MPa for 4 min. The treatment is repeated 3 times to obtain a rice emulsion slurry.

[0112] 7) Filling and sterilization: The rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0113] Comparative Example 6

[0114] A stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk, the preparation method of which comprises the following steps:

[0115] 1) Washing and drying: Wash the selenium-enriched rice with an organic selenium content of 85 μg / kg once, and then put it into the oven for drying. Set the upper and lower fire temperatures of the oven to 100°C and the baking time to 17 min.

[0116] 2) Baking rice to make it fragrant: put the dried selenium-rich rice into the oven and bake it until it turns slightly yellow and has a faint rice fragrance. Set the upper and lower heat temperatures of the oven to 200°C and the baking time to 7 minutes.

[0117] 3) preparing rice powder and edible and medicinal powder: putting Chinese yam, coix seed, Euryale ferox, oatmeal and roasted rice into a grinder, respectively, and sifting through an 80-mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and rice powder respectively;

[0118] 4) Cooking slurry: Weigh 60 parts of rice flour, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare rice slurry; weigh 1 part of yam powder, 1 part of coix seed powder, 1 part of Euryale powder, and 1 part of oatmeal powder, mix to obtain medicine and food powder, add water at a ratio of 1:17, cook on an induction cooker and stir from time to time to make the overall powder particle size uniform without lumps, cook until boiling, and prepare medicine and food slurry; weigh 5 parts of milk powder, brew with hot water at a ratio of 1:7, and stir to obtain milk powder slurry;

[0119] 5) Slurry preparation: weigh and mix the rice slurry, the medicinal and edible slurry, and the milk powder slurry in a weight ratio of 20:2:1 to obtain a mixed slurry, and then add other auxiliary materials according to the weight ratio of the mixed slurry, and mix thoroughly to obtain a selenium-enriched rice emulsion; the auxiliary materials are in the proportions of 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% composite phosphate, 0.06% salt, and 4% sucrose;

[0120] 6) Filling and sterilization: the prepared rice emulsion is quickly filled, capped, and then placed in a reverse pressure sterilizer for sterilization; the sterilization parameters are 121° C., 15 min.

[0121] Example 4

[0122] In this example, the sensory evaluation method and results of the rice milk obtained in Examples 1 to 3 and Comparative Examples 1 to 6 are shown in Tables 1 to 2; the sensory evaluation team consists of 20 specially trained sensory assessors. After tasting each group of rice milk formulas, the assessors scored the rice milk sensory evaluation indicators according to their own scores, and the scoring results were averaged.

[0123] Table 1 Sensory evaluation standards

[0124]

[0125] The final score of the sensory evaluation adopts a weighted scoring method, with color accounting for 20%, aroma accounting for 20%, taste accounting for 30%, and texture accounting for 30%. The closer the total score is to 100 points, the better the product of the present invention is.

[0126] Table 2 Sensory evaluation scores and selenium content

[0127]

[0128] It can be seen from the results in Table 2 that if the rice is not roasted and not ball-milled and treated with high-pressure microfluidizer, the sensory score and selenium retention rate of the rice milk product will be significantly affected. In addition, the invention adds four kinds of food and medicine, namely, Chinese yam, coix seed, Euryale ferox and oat, which have the effects of nourishing the stomach and strengthening the spleen.

[0129] Although the description of the present invention has been quite detailed and specifically describes several described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be regarded as providing a broad possible interpretation of these claims in view of the prior art by reference to the appended claims, thereby effectively covering the intended scope of the present invention. In addition, the above description of the present invention is based on the embodiments foreseeable by the inventor, and its purpose is to provide a useful description, and those non-substantial changes to the present invention that have not yet been foreseen may still represent equivalent changes to the present invention.

Claims

1. A stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk, characterized in that: Made from the following raw materials in parts by weight: 40-80 parts of selenium-enriched rice flour, 1-2 parts of yam flour, 1-2 parts of coix seed flour, 1-2 parts of Euryale ferox flour, 1-2 parts of oat flour, 2-10 parts of whole milk powder; the selenium content of the stomach-nourishing and spleen-strengthening selenium-enriched nutritious rice milk is 40 μg / kg~61 μg / kg; The preparation method of the stomach-nourishing, spleen-strengthening, selenium-enriched nutritious rice milk comprises the following steps: Step 1: washing the selenium-rich rice 1 to 3 times, drying it, and then baking the dried selenium-rich rice until the selenium-rich rice is slightly yellow and has a faint rice fragrance; the organic selenium content of the selenium-rich rice is 60 μg / kg to 85 μg / kg; the drying temperature is 100°C to 150°C, the time is 10 min to 17 min; the baking temperature is 150°C to 220°C, and the time is 3 min to 10 min; Step 2: Grind the Chinese yam, coix seed, Euryale ferox, oatmeal and the selenium-enriched rice baked in step 1 respectively, and then pass them through a 60-100 mesh sieve to obtain Chinese yam powder, coix seed powder, Euryale ferox powder, oatmeal powder and selenium-enriched rice powder respectively; Step 3: grinding the yam powder, coix seed powder, euryale powder, oatmeal powder and selenium-enriched rice powder obtained in step 2 in a ball mill to obtain ball-milled yam powder, coix seed powder, euryale powder, oatmeal powder and selenium-enriched rice powder, wherein the ball mill uses a grinding ball with a diameter of 10 nm, a fixed ball-grinding ratio of 5:1, a grinding speed of 300 r / min, and a grinding time of 1 h; Step 4: Weigh 40-80 parts of the selenium-rich rice powder in step 3, add water, and then boil and stir until the selenium-rich rice powder has uniform particle size and no lumps, boil until boiling, and obtain selenium-rich rice slurry; the ratio of the selenium-rich rice powder to the water is 1:15-20; Step 5: Weigh 1-2 parts of yam powder, 1-2 parts of coix seed powder, 1-2 parts of Euryale powder, and 1-2 parts of oatmeal powder in step 3, mix to obtain food and medicine powder, add water, and then boil and stir until the food and medicine powder has uniform particle size and no lumps, boil until boiling, and obtain food and medicine slurry; the ratio of the food and medicine powder to the water is 1:15-20; Step 6: Weigh 2 to 10 parts of milk powder, add hot water in a ratio of 1:6 to 8, and stir to obtain milk powder slurry; Step 7: mixing the selenium-enriched rice slurry of step 4, the medicine-food slurry of step 5, and the milk powder slurry of step 6 at a weight ratio of 20-40:2-4:1 to obtain a mixed slurry, and then adding other auxiliary materials in a certain proportion, mixing, to obtain a selenium-enriched rice emulsion; The auxiliary materials and their proportions are potassium sorbate 0.01-0.05%, sodium benzoate 0.01-0.05%, monoglyceride 0.05-0.1%, composite phosphate 0.02-0.04%, salt 0.03-0.06%, sucrose 2-4%; Step 8: The selenium-rich rice emulsion in step 7 is first subjected to a colloid mill to make it uniformly miscible, and then treated with an ultra-high pressure microfluidizer to obtain a selenium-rich rice emulsion; the ultra-high pressure microfluidizer has a processing pressure of 100 MPa, a homogenization time of 4 min, and a homogenization number of 3 times; Step 9: Fill the selenium-rich rice milk obtained in step 8, and then place it in a reverse pressure sterilizer for sterilization, so as to finally obtain the stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk.

2. The stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk according to claim 1, characterized in that: The organic selenium content of the selenium-enriched rice in step 1 is 85 μg / kg.

3. The stomach-nourishing, spleen-strengthening, selenium-enriched nutritious rice milk according to claim 1, characterized in that: The baking temperature in step 1 is 200°C and the time is 5 min.

4. The stomach-nourishing, spleen-strengthening, selenium-enriched nutritious rice milk according to claim 1, characterized in that: The Chinese yam, coix seed, Euryale ferox, oats in step 2 and the selenium-enriched rice baked in step 1 are crushed and passed through an 80-mesh sieve respectively.

5. The stomach-nourishing and spleen-strengthening selenium-rich nutritious rice milk according to claim 1, characterized in that: The auxiliary materials and their proportions in step 7 are 0.05% potassium sorbate, 0.05% sodium benzoate, 0.1% monoglyceride, 0.04% complex phosphate, 0.06% salt and 4% sucrose.

6. The stomach-nourishing, spleen-strengthening, selenium-rich nutritious rice milk according to claim 1, characterized in that: The sterilization temperature is 110 ℃ ~ 125 ℃, and the time is 15 ~ 30 min.

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