Rice bran oil microcapsule-containing cereal meal replacement powder and preparation method thereof

Abstract

The invention provides rice bran oil microcapsule-containing cereal meal replacement powder and a preparation method thereof, and belongs to the technical field of food processing. The preparation method comprises the following steps: mixing Arabic gum, rice bran protein and sodium caseinate with water, and homogenizing to form a rice bran oil emulsion; performing spray drying on the rice bran oil emulsion to obtain rice bran oil microcapsule powder; and mixing quinoa flour, coarse rice flour, highland barley flour, maltitol, red date powder and the rice bran oil microcapsule powder in proportion to obtain the rice bran oil microcapsule meal replacement powder. Under the normal temperature condition, the rice bran oil is prone to oxidative deterioration, and the rice bran oil is subjected to microencapsulation treatment through the microencapsulation technology, so that the oxidation resistance of the rice bran oil is improved, and the application range of the rice bran oil is widened. The rice bran oil microcapsules are added into the cereal meal replacement powder as an auxiliary material, so that the nutritional value of the cereal meal replacement powder can be increased, the functional characteristics can be enhanced, a better meal replacement choice is provided for healthy people and people with chronic diseases, and the requirements of consumers on digestible and low-sensitization meal replacement powder are met.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing, and particularly relates to a cereal meal replacement powder containing rice bran oil microcapsules and a preparation method thereof. Background Art

[0002] In recent years, with the popularity of fast-paced lifestyles among urban people and the focus on weight management, meal replacement powder has quickly become a phenomenal product in the field of health consumption due to its convenience, calorie controllability and standardized nutritional output. Global market research data shows that the market size of meal replacement powder will expand at an average annual compound growth rate of 12.3% between 2020 and 2025, and its application scenarios have extended from the initial medical nutrition intervention to fitness shaping, office fast food and emergency meals. However, some meal replacement powders currently have problems such as single nutritional ingredients and poor solubility.

[0003] At present, the ingredients of meal replacement powder mainly include cereals, beans and potato ingredients; and rice bran oil has the advantages of high unsaturated fatty acids, rich in vitamin E and oryzanol, and can scavenge free radicals; therefore, rice bran oil is added to the meal replacement powder in the form of microcapsules to improve the quality of the meal replacement powder. Rice bran oil microcapsules are prepared by spray drying technology, which has significant advantages in food processing. It has a fast drying speed and can effectively retain the heat-sensitive components in food, and reduce the loss of nutrients. At the same time, the meal replacement powder produced by this technology has good dispersibility, fluidity and solubility, can be quickly dissolved in water, and is convenient for consumers to eat. Compared with the full nutrition fat-reducing meal replacement powder and its preparation method disclosed in patent CN201810506147.6, the rice bran oil of the present invention contains rich nutrients, such as essential fatty acids, vitamin E, phytosterols, etc. The microencapsulation process can effectively retain these nutrients, so that they are not easy to lose during storage and processing, thereby ensuring the nutritional value of the product and having better antioxidant, anti-inflammatory and other health care effects.

[0004] Therefore, the present invention uses quinoa flour, brown rice flour, highland barley flour, rice bran oil microcapsule powder, maltitol and red date powder to mix well and evenly to obtain microcapsule meal replacement powder, so as to improve product quality. Summary of the invention

[0005] The invention provides a rice bran oil microcapsule cereal meal replacement powder and a preparation method thereof. The rice bran oil microcapsule cereal meal replacement powder prepared by the method has the characteristics of high nutritional performance and high dispersibility.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, characterized in that it comprises quinoa powder, brown rice powder, highland barley powder, rice bran oil microcapsule powder, maltitol, and red date powder.

[0007] The above-mentioned rice bran oil microcapsule cereal meal replacement powder comprises, by weight, 10-30 parts of quinoa flour, 10-20 parts of brown rice flour, 10-30 parts of highland barley flour, 3.2-15 parts of rice bran oil microcapsule powder, 1.6-10 parts of maltitol, and 2-10 parts of red date powder.

[0008] The above-mentioned cereal meal replacement powder containing rice bran oil microcapsules is characterized in that the preparation method of the rice bran oil microcapsule powder comprises the following steps:

[0009] 1) Preparation of rice bran oil emulsion: a certain amount of gum arabic, rice bran protein and sodium caseinate were dissolved in distilled water in sequence and mixed evenly to obtain a wall material mixture, which was then left to stand overnight at 4° C. to allow the wall material to be fully hydrated, and then rice bran oil and Tween-80 were added, and stirred at 60° C. at 300 r / min using a magnetic stirrer, and finally homogenized for 6 min using a high-speed disperser to obtain a rice bran oil microcapsule emulsion;

[0010] 2) taking the rice bran oil microcapsule emulsion and using a spray dryer to spray dry the rice bran oil microcapsule powder;

[0011] In the above-mentioned rice bran oil microcapsule cereal meal replacement powder, in step 1), the concentration of gum arabic is 0.01 mg / mL to 0.03 mg / mL, the concentration of rice bran protein is 0.01 mg / mL, and the concentration of sodium caseinate is 0.01 mg / mL to 0.03 mg / mL.

[0012] The above-mentioned cereal meal replacement powder containing rice bran oil microcapsules, in step 1), the total mass ratio of rice bran oil to gum arabic, rice bran protein and sodium caseinate is 2:1 to 1:3.

[0013] In the above-mentioned rice bran oil microcapsule cereal meal replacement powder, in step 1), the amount of Tween-80 added is 3% to 6% of the total volume of the wall material mixture.

[0014] In the above-mentioned rice bran oil microcapsule cereal meal replacement powder, in step 2), the air inlet temperature of the spray dryer is 160° C. to 200° C., and the feed rate is 15% to 35%.

[0015] The method for preparing the above-mentioned cereal meal replacement powder containing rice bran oil microcapsules comprises the following steps:

[0016] 1) adding quinoa flour, brown rice flour and highland barley flour into a high-speed vortex mixer and mixing evenly;

[0017] 2) adding rice bran oil microcapsule powder, maltitol and red date powder into a high-speed vortex mixer, and uniformly mixing to obtain microcapsule meal replacement powder.

[0018] The rice bran oil microcapsule emulsion prepared by the invention has a stability of (50.00-99.07)%, a turbidity of (167.31-825.69), and a viscosity of (75.33-88.3); after spray drying, the embedding rate of the rice bran oil microcapsule powder is (59.31-79.86)%, and the yield is (20.00-50.81)%; after being mixed with quinoa powder, brown rice powder, highland barley powder, maltitol, and red date powder, the water absorption index is (238.18-343.81)%, and the water solubility index is (17.59-30.10)%.

[0019] The beneficial effects of the present invention are:

[0020] (1) Rice bran oil is made into microcapsule powder to reduce the odor of oil and improve the palatability of meal replacement powder. It can protect the active ingredients in rice bran oil from oxidative damage, extend the shelf life of the product, and ensure nutritional stability.

[0021] (2) The World Health Organization, China Cereals and Oils Association (CCOA) and others all consider rice bran oil to be a "healthy oil" that contains active ingredients such as γ-oryzanol, tocopherol, phytosterols and important dietary fiber. Therefore, the present invention adds rice bran oil microcapsule powder to the meal replacement powder to supplement a variety of nutrients; BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The graphs show the stability, viscosity and turbidity test results of the rice bran oil emulsions prepared in Examples 1 to 6.

[0023] Figure 2 This is a graph showing the test results of the water absorption index and water solubility index of the rice bran oil microcapsule cereal meal replacement powder prepared in Examples 1 to 6.

[0024] Figure 3 The present invention is a flow chart of the preparation method of rice bran oil microcapsule cereal meal replacement powder. DETAILED DESCRIPTION

[0025] Example 1

[0026] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, such as Figure 3 As shown, the specific steps are as follows:

[0027] (1) Preparation of rice bran oil emulsion: 10 mg of gum arabic, 10 mg of rice bran protein, and 10 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 15 mg of rice bran oil and 30 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0028] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying the emulsion, controlling the air inlet temperature to 170° C. and the feed rate to 20% to obtain rice bran oil microcapsule powder;

[0029] (3) Add 10 g quinoa powder, 10 g brown rice powder, and 30 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0030] (4) adding 10 g of rice bran oil microcapsule powder, 5 g of maltitol, and 5 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0031] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 95.19%, a viscosity of 80.72 cp, and a turbidity of 366.73. Figure 2 As shown, the WAI of the prepared meal replacement powder was 245.31% and the WSI was 20.12%.

[0032] Example 2

[0033] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, the specific steps are as follows:

[0034] (1) Preparation of rice bran oil emulsion: 20 mg of gum arabic, 10 mg of rice bran protein, and 20 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 16.67 mg of rice bran oil and 30 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0035] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying the emulsion, controlling the air inlet temperature to 170° C. and the feed rate to 15% to obtain rice bran oil microcapsule powder;

[0036] (3) Add 10 g quinoa powder, 20 g brown rice powder and 10 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0037] (4) adding 6.4 g of rice bran oil microcapsule powder, 8 g of maltitol, and 8 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0038] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 96.35%, a viscosity of 81.6 cp, and a turbidity of 357.62. Figure 2 As shown, the WAI of the prepared meal replacement powder was 319.17% and the WSI was 22.3%.

[0039] Example 3

[0040] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, the specific steps are as follows:

[0041] (1) Preparation of rice bran oil emulsion: 30 mg of gum arabic, 10 mg of rice bran protein, and 10 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 16.67 mg of rice bran oil and 30 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0042] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying it, controlling the inlet air temperature to 180° C. and the feed rate to 20% to obtain rice bran oil microcapsule powder;

[0043] (3) Add 20 g quinoa powder, 10 g brown rice powder and 10 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0044] (4) adding 9.6 g of rice bran oil microcapsule powder, 4.8 g of maltitol, and 4 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0045] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 99.07%, a viscosity of 79.47 cp, and a turbidity of 178.81. Figure 2 As shown, the WAI of the prepared meal replacement powder was 343.81% and the WSI was 30.1%.

[0046] Example 4

[0047] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, the specific steps are as follows:

[0048] (1) Preparation of rice bran oil emulsion: 30 mg of gum arabic, 10 mg of rice bran protein, and 10 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 33.33 mg of rice bran oil and 60 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0049] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying it, controlling the inlet air temperature to 180° C. and the feed rate to 20% to obtain rice bran oil microcapsule powder;

[0050] (3) Add 10 g quinoa powder, 10 g brown rice powder, and 30 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0051] (4) adding 10 g of rice bran oil microcapsule powder, 5 g of maltitol, and 5 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0052] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 94.57%, a viscosity of 81.77 cp, and a turbidity of 439.21. Figure 2 As shown, the WAI of the prepared meal replacement powder was 253.85% and the WSI was 20.12%.

[0053] Example 5

[0054] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, the specific steps are as follows:

[0055] (1) Preparation of rice bran oil emulsion: 10 mg of gum arabic, 10 mg of rice bran protein, and 30 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 50 mg of rice bran oil and 30 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0056] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying the emulsion, controlling the inlet air temperature to 160° C. and the feed rate to 15% to obtain rice bran oil microcapsule powder;

[0057] (3) Add 10 g quinoa powder, 10 g brown rice powder, and 30 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0058] (4) adding 10 g of rice bran oil microcapsule powder, 5 g of maltitol, and 5 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0059] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 85.7%, a viscosity of 82.27 cp, and a turbidity of 676.17. Figure 2 As shown, the WAI of the prepared meal replacement powder was 272.01% and the WSI was 23.1%.

[0060] Example 6

[0061] A method for preparing a cereal meal replacement powder containing rice bran oil microcapsules, the specific steps are as follows:

[0062] (1) Preparation of rice bran oil emulsion: 30 mg of gum arabic, 10 mg of rice bran protein, and 10 mg of sodium caseinate were accurately weighed and dissolved in 1000 mL of distilled water, and then left to stand overnight at 4°C to allow the wall material to be fully hydrated. Then, 75 mg of rice bran oil and 30 mL of Tween-80 were added, and stirred at 300 r / min at 60°C using a magnetic stirrer. Finally, a high-speed disperser was used to homogenize for 6 min to obtain a rice bran oil microcapsule emulsion;

[0063] (2) taking 1000 mL of rice bran oil microcapsule emulsion and spray drying the emulsion, controlling the air inlet temperature to 170° C. and the feed rate to 20% to obtain rice bran oil microcapsule powder;

[0064] (3) Add 20 g quinoa powder, 10 g brown rice powder and 10 g highland barley powder into a high-speed vortex mixer and mix evenly;

[0065] (4) adding 6.4 g of rice bran oil microcapsule powder, 6.4 g of maltitol, and 6 g of red date powder into a high-speed vortex mixer, mixing evenly, and placing in an aluminum can to obtain a microcapsule meal replacement powder;

[0066] like Figure 1 As shown in FIG. 1 , the prepared meal replacement powder emulsion has a stability of 86.67%, a viscosity of 83.75 cp, and a turbidity of 586.33. Figure 2 As shown, the prepared meal replacement powder had a WAI of 272.93% and a WSI of 22%.

Claims

1. A cereal meal replacement powder containing rice bran oil microcapsules, characterized in that: Including quinoa flour, brown rice flour, barley flour, rice bran oil microcapsule powder, maltitol, and red date powder.

2. The cereal meal replacement powder containing rice bran oil microcapsules according to claim 1, characterized in that: In terms of mass proportions, the invention comprises 10-30 parts of quinoa flour, 10-20 parts of brown rice flour, 10-30 parts of highland barley flour, 3.2-15 parts of rice bran oil microcapsule powder, 1.6-10 parts of maltitol and 2-10 parts of red date powder.

3. A cereal meal replacement powder containing rice bran oil microcapsules according to claim 1 or 2, characterized in that: The method for preparing rice bran oil microcapsule powder comprises the following steps: 1) Preparation of rice bran oil emulsion: a certain amount of gum arabic, rice bran protein and sodium caseinate were dissolved in distilled water in sequence and mixed evenly to obtain a wall material mixture, which was then left to stand overnight at 4° C. to allow the wall material to be fully hydrated, and then rice bran oil and Tween-80 were added, and stirred at 60° C. at 300 r / min using a magnetic stirrer, and finally homogenized for 6 min using a high-speed disperser to obtain a rice bran oil microcapsule emulsion; 2) taking the rice bran oil microcapsule emulsion and using a spray dryer to spray dry the rice bran oil microcapsule powder.

4. The cereal meal replacement powder containing rice bran oil microcapsules according to claim 3, characterized in that: In step 1), the concentration of gum arabic is 0.01 mg / mL to 0.03 mg / mL, the concentration of rice bran protein is 0.01 mg / mL, and the concentration of sodium caseinate is 0.01 mg / mL to 0.03 mg / mL.

5. The cereal meal replacement powder containing rice bran oil microcapsules according to claim 3, characterized in that: In step 1), the total mass ratio of rice bran oil to gum arabic, rice bran protein and sodium caseinate is 2:1 to 1:

3.

6. The cereal meal replacement powder containing rice bran oil microcapsules according to claim 3, characterized in that: In step 1), the amount of Tween-80 added is 3% to 6% of the total volume of the wall material mixture.

7. The cereal meal replacement powder containing rice bran oil microcapsules according to claim 3, characterized in that: In step 2), the air inlet temperature of the spray dryer is 160° C. to 200° C., and the feed rate is 15% to 35%.

8. The method for preparing a cereal meal replacement powder containing rice bran oil microcapsules according to claim 1 or 2, characterized in that: The steps include: 1) adding quinoa flour, brown rice flour and highland barley flour into a high-speed vortex mixer and mixing evenly; 2) adding rice bran oil microcapsule powder, maltitol and red date powder into a high-speed vortex mixer, and uniformly mixing to obtain microcapsule meal replacement powder.

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