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Method for making sweet potato steamed bun from fresh sweet potato prime pulp without color protection

A production method and fresh sweet potato technology are applied in the field of fresh sweet potato raw pulp steamed bread, which can solve problems such as harm to human health, and achieve the effects of delicious taste, easy molding, and easy digestion and absorption.

Inactive Publication Date: 2018-12-28
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the sulfur dioxide released by sodium bisulfite in the process of color protection, it is harmful to human health.

Method used

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  • Method for making sweet potato steamed bun from fresh sweet potato prime pulp without color protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1) Select fresh sweet potatoes without mechanical damage and pests as raw materials, and use a high-pressure air bath washing machine to wash away organic and inorganic impurities such as soil, sand and stones on the surface of fresh sweet potatoes and in the sockets; the width of the water tank is not less than 0.6m, and the length is not less than 1m, water level 0.3~0.8m, pore diameter 1.0mm~3.0mm, ventilation volume 10~20m3 / h (0.5~1.0MPa), pneumatic operation not less than half of the cleaning time, maximum pump flow 200L / Min, the maximum lift is not less than 15m.

[0048] 2) Put the cleaned sweet potatoes in an inclined steam peeling machine with a spiral stirring shaft. The surface of fresh sweet potatoes is evenly exposed to hot steam to remove the skin on the surface of sweet potatoes. Steam working pressure: 0.8~1.5 Mpa, processing time 2min . Rinse off the sweet potato skin with clean water, and then use a crusher to crush it into pieces with a size ≤ 2cm. ...

Embodiment 2

[0054] 1) Select fresh sweet potatoes without mechanical damage and pests as raw materials, and use a high-pressure air bath washing machine to wash away organic and inorganic impurities such as soil, sand and stones on the surface of fresh sweet potatoes and in the sockets; the width of the water tank is not less than 0.6m, and the length is not less than at 1m, water level at 0.3~0.8m, pore diameter at 1.0mm~3.0mm, air flow at 10~20m 3 / h (0.5~1.0MPa), the pneumatic operation is not less than half of the cleaning time, the maximum flow of the pump is 200L / Min, and the maximum lift is not less than 15m.

[0055] 2) After washing the sweet potatoes, use cleaning equipment with a brush roller to remove the sweet potato skins, and rinse the sweet potato skins with 80-90°C hot water, then immerse the sweet potatoes in a stainless steel water tank at 80-90°C for 1-5 minutes. Then use a crusher to break into pieces with a size of ≤2cm. Fresh sweet potato pieces and water are placed...

Embodiment 3

[0061] 1) Select fresh sweet potatoes without mechanical damage and pests as raw materials, and use a submerged water jet cleaning machine to wash away organic and inorganic impurities such as soil, sand and stones on the surface of fresh sweet potatoes and in the sockets. ~8.0m / s.

[0062] 2) Put the cleaned sweet potatoes in an inclined steam peeling machine with a spiral stirring shaft. The surface of fresh sweet potatoes is evenly exposed to hot steam to remove the skin on the surface of sweet potatoes. Steam working pressure: 0.8~1.5 Mpa, processing time 2min . Rinse off the sweet potato skin with clean water, and then use a crusher to crush it into pieces with a size ≤ 2cm. Fresh sweet potato pieces and water are placed in a conical disc refiner at a ratio of 1 to 5:1 to make pulp. The gap between the blades of the refiner is controlled at 0.3 mm~0.5 mm, the cone angle range is 35°~50°, the rotor speed is 800~1200r / min, and the slurry is 50~250 mesh.

[0063] 3) Put 0....

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Abstract

The invention provides a method for making a fresh sweet potato steamed bun from fresh sweet potato prime pulp without color protection. The steamed bun is prepared from raw materials in parts by massas follows: 0.8-1.2 parts of active dry yeast, 15-27 parts of wheat meal, 15-3 parts of the fresh sweet potato prime pulp and 5-14 parts of water. The steamed bun is prepared by steps as follows: cleaned fresh sweet potatoes are peeled and cut into small pieces, and the small pieces are beaten with water to form pulp; the raw materials in parts are weighed in a composition proportion and put in adough mixer for blending; blended dough is leavened; the leavened dough is put in a dough sheeter and rolled into dough sheets, the dough sheets are cut into dough blocks, the dough blocks are rolledand kneaded for forming, and a steamed bun blank is prepared and leavened; the leavened steamed bun blank is steamed, the cover is open after fire is turned off, the steamed bun is taken out and cooled, and the fresh sweet potato steamed bun prepared from fresh sweet potato prime pulp without color protection is obtained. The fresh sweet potato steamed bun does not require any color protecting agent, nutritive value of the fresh sweet potato steamed bun is guaranteed, the application amount of the fresh sweet potato prime pulp in steamed bun processing is increased, the application of the fresh sweet potatoes to national economy of China is broadened, and varieties of the steamed buns of China are enriched.

Description

technical field [0001] The invention relates to the field of food products, and provides fresh sweet potato steamed buns for the food field. Background technique [0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato, sweet potato, is a short-day crop that likes light. Sweet potatoes are very nutritious. Modern studies have shown that sweet potatoes have the functions of eliminating active oxygen, inhibiting skin aging, preventing cancer, inhibiting cholesterol, benefiting heart health, preventing emphysema, anti-diabetes, losing weight, and laxative. Fresh sweet potatoes are famous for their rich nutritional value. And many health care functions, are more and more subject to people's favor. In addition to starch, there are many scarce inorganic salt ions and proteins in sweet potatoes. The protein content contained in fresh sweet potatoes is higher than that of rice, corn and other food crops, and the fiber content is much higher than other food cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L7/104A23L19/10A23L33/00
CPCA23V2002/00A23L7/104A23L19/105A23L33/00A23V2200/308A23V2200/314A23V2200/30A23V2200/328A23V2200/332
Inventor 李宏军曹燕飞马成业任研研陈善峰张东亮
Owner SHANDONG UNIV OF TECH
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