Sweet potato and walnut sugar tablet and processing method thereof

Abstract

The invention provides sweet potato and walnut sugar tablets and a processing method thereof, and relates to the technical field of food processing. The sweet potato and walnut sugar tablets consist of the following components in percentage by weight: 60-68% of maltose, 12.5-14% of walnut kernels, 12.5-14% of roxburgh rose grains, 6-7% of sweet potato powder and 2.5-4% of cream. The sweet potato and walnut sugar tablet integrates the nutritional ingredients of the sweet potatoes, the walnuts and the roxburgh rose, organically integrates the roxburgh rose rich in vitamin C, the walnuts rich in protein, various trace elements and dietary fibers, integrates comprehensive energy of sugar, protein, fat, vitamins and the like, provides healthy and nutritional food for consumers, and has a good market prospect. Compared with a sweet potato product which is not added with roxburgh rose grains or is traditionally made, the sweet potato and walnut sugar tablet is higher in nutritional value and better in taste, and due to the adoption of automatic forming equipment, the sanitary quality is also guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and specifically relates to a sweet potato walnut sugar slice and its processing method. Background Art

[0002] With the continuous improvement of the national health awareness, people pay more and more attention to the health of diet, and the demand for food safety, nutrition, and ingredient combination is also increasing. In the snack food market, developing products that are both delicious and nutritious has become a trend.

[0003] However, at present, the processing and utilization methods of these raw materials of Guizhou specialties in the market are limited, and their nutritional value and economic value have not been fully utilized. There are a wide variety of existing snack foods, but there are few products that integrate multiple nutritional components such as sweet potatoes, walnuts, and Rosa roxburghii Tratt. The present invention aims to utilize raw materials of Guizhou Plateau specialties such as sweet potatoes, walnuts, and Rosa roxburghii Tratt., and use innovative process technologies to develop a healthy snack, enrich the variety of market products, open up new processing and utilization ways for Guizhou local raw materials, and at the same time respond to the call for the snackification transformation of Guizhou's medicated and edible homologous products to help mountain farmers get rich. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a sweet potato walnut sugar slice and its processing method, which solves the problems raised in the above background art.

[0005] (II) Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A sweet potato walnut sugar slice is composed of the following components in weight percentages: maltose 60 - 68%, walnut kernels 12.5 - 14%, Rosa roxburghii Tratt. grains 12.5 - 14%, sweet potato powder 6 - 7%, and cream 2.5 - 4%.

[0006] Preferably, the sweet potato walnut sugar slice is composed of the following components in weight percentages: maltose 65%, walnut kernels 13%, Rosa roxburghii Tratt. grains 13%, sweet potato powder 6%, and cream 3%.

[0007] Maltose is a sugar food made by fermenting grains such as rice, barley, millet, or corn. It has a mild sweetness, can increase the color and fragrance of dish varieties, and is produced throughout the country. There are two types, soft and hard. The soft one is a thick brownish-yellow liquid with great viscosity, called glue maltose; the hard one is formed by stirring the soft sugar and mixing in air and then solidifying, which is a porous yellowish-white sugar cake, called white maltose. Glue maltose is preferred for medicinal use. Maltose belongs to disaccharides, is a white needle-shaped crystal, and is easily soluble in water. It tastes sweet but not as sweet as sucrose, and has the effects of strengthening the spleen and stomach and moistening the lungs to relieve cough. It is a food suitable for all ages.

[0008] Walnut kernels, as a kind of nut with high edible value, are rich in high-quality vegetable protein (content is about 14.9 grams / 100 grams), can provide the human body with a variety of essential amino acids, and at the same time contain a large amount of unsaturated fatty acids (such as linoleic acid, linolenic acid, etc.) and a variety of minerals and vitamins, such as vitamin E, vitamin B group, etc.

[0009] Rosa roxburghii Tratt fruit granules are the fruits of the Rosa roxburghii Tratt plant, a kind of local specialty in Guizhou. In recent years, under the attention of the national and local governments, the planting scale has expanded rapidly and has become an important project to help farmers get rich. Rosa roxburghii Tratt has the characteristics of appetizing and aiding digestion, and its vitamin C content is extremely high, enjoying the reputation of "the king of vitamin C".

[0010] Sweet potato starch. The most anti-cancer nutrients in the diet are β-carotene (precursor of vitamin A), vitamin C and folic acid, and all three are relatively rich in sweet potatoes. A small sweet potato (about 2 taels in weight) can provide twice the amount of vitamin A needed by the human body per day, one-third of the daily required vitamin C and about 50 micrograms of folic acid; the content of dietary fiber in it is higher than that of a bowl of oatmeal. Sweet potatoes are rich in potassium, β-carotene, folic acid, vitamin C and vitamin B6, and these 5 components all contribute to the prevention of cardiovascular diseases. Potassium helps the balance of body cell fluids and electrolytes, and maintains normal blood pressure and heart function.

[0011] Cream can supplement the lack of vitamin A and is more suitable for people and children lacking vitamin A.

[0012] The present invention further discloses a processing method of sweet potato walnut sugar tablets. Based on the above-mentioned sweet potato walnut sugar tablets, it includes the following steps: Step 1: Sugar boiling: Pour the weighed maltose, cream and sweet potato starch into the sugar boiling pot, heat and boil until the syrup becomes viscous. Use a sugar testing strip to pick up the syrup, and after cooling, pull it with your hand to test that the sugar blank is of moderate hardness, then pour in the weighed Rosa roxburghii Tratt fruit granules and walnut kernels, stir evenly and then take out of the pot; Step 2: Automatic forming: Cut the boiled sugar embryo into 2cm * 1cm * 1cm rectangular blocks with an automatic forming machine to make semi-finished sweet potato walnut sugar tablets; Step 3: Sterilization: Place the semi-finished sweet potato walnut sugar tablets in a special sterilization room for sterilization treatment to obtain sweet potato walnut sugar tablets with qualified hygiene; Step 4: Packaging: Pack the sweet potato walnut sugar tablets into single bags.

[0013] Preferably, in step 1, the temperature of the sugar boiling pot is 117 - 124 °C, the boiling time is 4 - 5 hours; the moisture content of the sugar blank is 12% - 15%.

[0014] Preferably, in step two, the automatic forming machine consists of a feeding conveyor trough, a tablet pressing roller, a cutter carriage, a cooling air duct, and an automatic sugar collecting mechanism. The cooked sugar embryo is slowly taken out of the pot and flows into the feeding conveyor trough, is rolled into a thin sheet by the tablet pressing roller, cut into rectangular blocks by the cutter carriage, enters the air-cooling tunnel for cooling, and the cooled sugar blocks are collected by the automatic sugar collecting machine. At this time, it becomes a semi-finished product of sweet potato and walnut sugar tablets.

[0015] Preferably, the feeding conveyor trough is used to convey the flowing sugar embryo to the tablet pressing roller for rolling; the tablet pressing roller is used to roll the conveyed sugar embryo into a thin sheet with a thickness of 1 cm; the cutter carriage is used to cut the thin sugar embryo into rectangular blocks of 2 cm * 1 cm; the cooling air duct is used to cool the sugar blocks to below 20°C; the automatic sugar collecting machine is used to collect the cooled sugar blocks.

[0016] Preferably, in step four, an automatic blanking machine is used to bag the sweet potato and walnut sugar tablets one by one.

[0017] (III) Beneficial effects The present invention provides a sweet potato and walnut sugar tablet and its processing method, having the following beneficial effects: 1. The sweet potato and walnut sugar tablets of the present invention integrate the nutritional components of sweet potato, walnut, and rosa roxburghii tratt, contain various trace elements, dietary fiber, vitamins, as well as high-quality protein and unsaturated fatty acids, providing rich nutrition for consumers.

[0018] 2. The unique raw material ratio and processing technology make the sugar tablets have a sweet, sour, and fragrant taste, are easy to chew, and have a full and long aftertaste. The soft, sweet taste of sweet potato, the sour and sweet taste of rosa roxburghii tratt, and the crispy taste of walnut are mutually integrated, forming a unique flavor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a process flow diagram of the processing method of the present invention; Figure 2 It is a schematic diagram of the composition of the automatic forming machine of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] As Figure 1As shown in the figure, an embodiment of the present invention provides a sweet potato and walnut sugar tablet, which is composed of the following components by weight percentage: 66 kg of maltose, 12.5 kg of walnut kernels, 12.5 kg of rosa roxburghii tratt grains, 6.5 kg of sweet potato powder, and 2.5 kg of cream.

[0022] An embodiment of the present invention also provides a processing method for the sweet potato and walnut sugar tablet. Based on the above-mentioned sweet potato and walnut sugar tablet, the method includes the following steps: Step 1: Sugar boiling: Pour the weighed maltose, cream, and sweet potato powder into the sugar boiling pot, heat and boil, control the temperature at about 117 °C, continuously boil for about 4 hours until the syrup becomes viscous. Use a sugar test strip to pick up the syrup, and after cooling, pull it with your hand to test that the sugar blank is of moderate hardness and the moisture content is 12%. Then pour in the weighed rosa roxburghii tratt grains and walnut kernels, stir evenly and then take out of the pot; Step 2: Automatic forming: Cut the boiled sugar embryo into 2 cm * 1 cm * 1 cm rectangular blocks with an automatic forming machine to make semi-finished sweet potato and walnut sugar tablets; among them, as Figure 2 shown, the automatic forming machine consists of a feeding conveyor trough, a tablet pressing roller, a knife carriage, a cooling air duct, and an automatic sugar collecting mechanism. The feeding conveyor trough is used to convey the flowing sugar embryo to the tablet pressing roller for rolling; the tablet pressing roller is used to roll the conveyed sugar embryo into a thin sheet with a thickness of 1 cm; the knife carriage is used to cut the thin sheet-shaped sugar embryo into 2 cm * 1 cm rectangular blocks; the cooling air duct is used to cool the sugar blocks to below 20 °C; the automatic sugar collecting machine is used to collect the cooled sugar blocks; Specifically, slowly take out the boiled sugar embryo and let it flow into the feeding conveyor trough, roll it into a thin sheet with a thickness of 1 cm by the tablet pressing roller, cut it into 2 cm * 1 cm rectangular blocks by the knife carriage, enter the air-cooling tunnel for cooling, cool it to below 20 °C, and collect the cooled sugar blocks with an automatic sugar collecting machine. At this time, it becomes semi-finished sweet potato and walnut sugar tablets; Step 3: Sterilization: Place the semi-finished sweet potato and walnut sugar tablets in a special sterilization room for sterilization treatment to obtain sweet potato and walnut sugar tablets; Step 4: Packaging: Use an automatic blanking machine to bag the sweet potato and walnut sugar tablets one by one. Embodiment

[0023] As Figure 1 shown, an embodiment of the present invention provides a sweet potato and walnut sugar tablet, which is composed of the following components by weight percentage: 65 kg of maltose, 13 kg of walnut kernels, 13 kg of rosa roxburghii tratt grains, 6 kg of sweet potato powder, and 3 kg of cream.

[0024] An embodiment of the present invention also provides a processing method for the sweet potato and walnut sugar tablet. Based on the above-mentioned sweet potato and walnut sugar tablet, the method includes the following steps: Step 1: Sugar boiling: Pour the maltose, cream, and sweet potato starch weighed according to the ingredient ratio into the sugar-boiling pot, heat and boil, control the temperature at about 120°C, continuously boil for about 4.5 hours until the syrup becomes viscous. Pick up the syrup with a sugar-testing strip. After cooling, pull the sugar blank by hand to check that it is of moderate hardness and the moisture content is 13%. Then pour in the weighed rosa roxburghii tratt fruit grains and walnut kernels, stir evenly and take out of the pot; Step 2: Automatic forming: Cut the boiled sugar blank into 2cm * 1cm * 1cm rectangular blocks with an automatic forming machine to make semi-finished sweet potato walnut sugar slices. Among them, as Figure 2 shown, the automatic forming machine consists of a feeding and conveying trough, a sheet pressing roller, a cutter carriage, a cooling air duct, and an automatic sugar collecting mechanism. The feeding and conveying trough is used to convey the flowing sugar blank to the sheet pressing roller for rolling; the sheet pressing roller is used to roll the conveyed sugar blank into a thin sheet with a thickness of 1cm; the cutter carriage is used to cut the thin sheet of sugar blank into 2cm * 1cm rectangular blocks; the cooling air duct is used to cool the sugar blocks to below 20°C; the automatic sugar collecting machine is used to collect the cooled sugar blocks; Specifically, slowly take out the boiled sugar blank and let it flow into the feeding and conveying trough, roll it into a thin sheet with a thickness of 1cm by the sheet pressing roller, cut it into 2cm * 1cm rectangular blocks by the cutter carriage, enter the air-cooling tunnel for cooling, cool to below 20°C, and collect the cooled sugar blocks with an automatic sugar collecting machine. At this time, it becomes semi-finished sweet potato walnut sugar slices; Step 3: Sterilization: Place the semi-finished sweet potato walnut sugar slices in a special sterilization room for sterilization treatment to obtain sweet potato walnut sugar slices; Step 4: Packaging: Use an automatic blanking machine to bag the sweet potato walnut sugar slices one by one. Embodiment

[0025] As Figure 1 shown, an embodiment of the present invention provides a sweet potato walnut sugar slice, which is composed of the following components in weight percentage: 61 kg of maltose, 14 kg of walnut kernels, 14 kg of rosa roxburghii tratt fruit grains, 7 kg of sweet potato starch, and 4 kg of cream.

[0026] An embodiment of the present invention also provides a processing method of the sweet potato walnut sugar slice. Based on the above-mentioned sweet potato walnut sugar slice, it includes the following steps: Step 1: Sugar boiling: Pour the maltose, cream, and sweet potato starch weighed according to the ingredient ratio into the sugar-boiling pot, heat and boil, control the temperature at about 124°C, continuously boil for about 5 hours until the syrup becomes viscous. Pick up the syrup with a sugar-testing strip. After cooling, pull the sugar blank by hand to check that it is of moderate hardness and the moisture content is 15%. Then pour in the weighed rosa roxburghii tratt fruit grains and walnut kernels, stir evenly and take out of the pot; Step 2: Automatic molding: The boiled candy embryo is cut into 2cm*1cm*1cm rectangular blocks by an automatic forming machine to make semi-finished sweet potato walnut candy slices; Figure 2 As shown, the automatic forming machine is composed of a feeding conveyor trough, a sheet pressing roller, a cutter car, a cooling air duct, and an automatic sugar collecting machine. The feeding conveyor trough is used to convey the flowing sugar embryo to the sheet pressing roller for rolling; the sheet pressing roller is used to roll the conveyed sugar embryo into a thin sheet with a thickness of 1 cm; the cutter car is used to cut the thin sheet sugar embryo into rectangular blocks of 2 cm*1 cm; the cooling air duct is used to cool the sugar block to below 20°C; the automatic sugar collecting machine is used to collect the cooled sugar block; Specifically, the cooked sugar embryo is slowly taken out of the pot and flows into the feeding conveyor trough, and is rolled into a thin sheet with a thickness of 1 cm by a sheeting roller, cut into 2 cm*1 cm rectangular blocks by a knife car, and enters an air cooling tunnel for cooling to below 20° C. The cooled sugar blocks are collected by an automatic sugar collecting machine, and at this time, they become semi-finished sweet potato walnut candy slices; Step 3: Sterilization: Placing the semi-finished sweet potato walnut candy slices in a special sterilization room for sterilization to obtain sweet potato walnut candy slices; Step 4: Packaging: An automatic pillow packaging machine is used to bag the sweet potato walnut candy slices individually.

[0027] Comparative Example 1: This comparative example provides a sweet potato walnut candy tablet, which is composed of the following components in percentage by weight: 66 kg of maltose, 12.5 kg of walnut kernels, 6.5 kg of sweet potato flour, and 2.5 kg of cream.

[0028] The processing method of the sweet potato walnut candy slices is the same as that of Example 1.

[0029] Comparative Example 2: The raw material components of the sweet potato walnut candy slices are the same as those of Example 1.

[0030] The processing method of the sweet potato walnut candy slice is based on the sweet potato walnut candy slice as described above, and comprises the following steps: Step 1: Boil sugar: Pour the maltose, cream and sweet potato flour weighed according to the ratio of ingredients into the sugar-boiling pot, heat and boil, control the temperature at about 117°C, and continue to boil for about 4 hours until the syrup is viscous. Use a sugar strip to pick up the syrup, and after cooling, pull the sugar blank by hand to test whether it is moderately soft and hard, and the moisture content is 12%. Pour the weighed roxburgh grains and walnut kernels, stir evenly and serve; Step 2: Automatic molding: Cut the cooked sugar embryo into 2 cm * 1 cm * 1 cm rectangular blocks with an automatic molding machine (prior art) to make semi-finished sweet potato walnut sugar slices; Step 3: Sterilization: Place the semi-finished sweet potato walnut sugar slices in a dedicated sterilization room for sterilization treatment to obtain sweet potato walnut sugar slices; Step 4: Packaging: Use an automatic blanking machine to bag the sweet potato walnut sugar slices one by one.

[0031] Experimental example: Detect the sweet potato walnut sugar slices prepared in Examples 1, 2, 3 and Comparative Examples 1, 2. The results are as follows in the table: Group Vitamin C ( / 100 g) Protein ( / 100 g) Taste Example 1 3.2g 16.1g Sweet and delicious Example 2 3.3g 16.2g Sweet and delicious Example 3 3.2g 16.1g Sweet and delicious Comparative Example 1 0.8g 14.9g Sweet and delicious Comparative Example 2 3.2g 16.1g Difficult to chew In summary, the sweet potato walnut sugar slices prepared by the present invention are rich in vitamin C, protein, various trace elements and dietary fiber. Compared with the sweet potato walnut sugar slices without adding Rosa roxburghii Tratt grains or using traditional molding machines, they have higher nutritional value and better taste.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sweet potato walnut candy slice, characterized in that: The invention is composed of the following components in percentage by weight: 60-68% maltose, 12.5-14% walnut kernels, 12.5-14% roxburghii grains, 6-7% sweet potato flour and 2.5-4% butter.

2. The sweet potato walnut candy slice according to claim 1, characterized in that: The invention is composed of the following components in percentage by weight: 65% of maltose, 13% of walnut kernels, 13% of roxburghii granules, 6% of sweet potato flour and 3% of cream.

3. A method for processing sweet potato walnut candy slices, based on the sweet potato walnut candy slices according to claim 1 or 2, characterized in that: The following steps are involved: Step 1: Boil sugar: Pour the maltose, cream and sweet potato flour weighed according to the ratio of ingredients into the sugar-boiling pot, heat and boil until the syrup is viscous, pick up the syrup with a sugar stick, and pull the sugar blank by hand to test the hardness after cooling, pour in the weighed roxburghii grains and walnut kernels, stir evenly and serve; Step 2: Automatic molding: The boiled candy embryo is cut into 2cm*1cm*1cm rectangular blocks by an automatic forming machine to make semi-finished sweet potato walnut candy slices; Step 3: Sterilization: The semi-finished sweet potato walnut candy slices are placed in a special sterilization room for sterilization to obtain sweet potato walnut candy slices that meet hygiene standards; Step 4: Packaging: The sweet potato walnut candy slices are packed in individual pieces.

4. The method for processing sweet potato walnut candy slices according to claim 3, characterized in that: In step 1, the temperature of the sugar boiling pot is 117-124° C., and the boiling time is 4-5 hours; the water content of the sugar blank is 12%-15%.

5. The method for processing sweet potato and walnut candy slices according to claim 3, characterized in that: In step 2, the automatic forming machine is composed of a feeding conveyor trough, a tabletting roller, a knife car, a cooling air duct, and an automatic sugar collecting machine. The boiled sugar embryo is slowly taken out of the pot and flows into the feeding conveyor trough, rolled into thin slices by the tabletting roller, cut into rectangular blocks by the knife car, and enters the air cooling tunnel for cooling. The cooled sugar blocks are collected by the automatic sugar collecting machine, and then become semi-finished sweet potato walnut candy slices.

6. The method for processing sweet potato and walnut candy slices according to claim 5, characterized in that: The feeding conveyor trough is used to convey the flowing sugar embryo to the sheeting roller for rolling; the sheeting roller is used to roll the conveyed sugar embryo into a thin sheet with a thickness of 1 cm; the cutter is used to cut the thin sheet of sugar embryo into rectangular blocks of 2 cm*1 cm; the cooling air duct is used to cool the sugar blocks to below 20°C; the automatic sugar collector is used to collect the cooled sugar blocks.

7. The method for processing sweet potato and walnut candy slices according to claim 3, characterized in that: In step 4, an automatic blanking machine is used to pack the sweet potato walnut candy slices into individual bags.

8. The method for processing sweet potato and walnut candy slices according to claim 3, characterized in that: In step 4, an automatic pillow packaging machine is used to pack the sweet potato walnut candy slices into individual bags.

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