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Processing method for diced virus-free red-pulp sweet potato

A processing method and a technology for diced sweet potatoes, which are applied in the field of food processing, can solve the problems of greasy taste, high dry sugar and sweetness of sweet potatoes, unsightly appearance, etc., and achieve the effects of preventing browning in color and crispy taste.

Inactive Publication Date: 2017-06-16
PUER LVHAI BIOLOGICAL DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, sweet potatoes have a high content of sugar and sweetness, which not only causes a greasy taste after eating too much, but also has a high surface viscosity, which often sticks to each other or sticks to the packaging bag in large packages, especially vacuum skin packaging. The bonding phenomenon is more serious, which is not only unsightly, but also makes it difficult to take the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A processing method of red-heart detoxified sweet potato dices, comprising the steps in the following order:

[0022] (1) Peel the selected high-quality sweet potatoes with a peeler, and then dice them with a dicing machine. The size of the diced sweet potatoes is 1×1cm;

[0023] (2) the diced sweet potato is put into the edible white vinegar solution with a mass concentration of 20% and soaked for 10 minutes;

[0024] (3) Place the diced sweet potatoes at -20°C for static treatment for 12 hours, freeze them and place them indoors to raise the temperature to room temperature;

[0025] (4) After cooling, diced sweet potatoes are soaked in sodium selenite solution, soaking time is 4 hours, soaking temperature is 35 ℃, then put in vacuum tank, utilize vacuum pump to vacuum negative pressure treatment for 7 hours, the pressure in the vacuum tank is -5Mpa;

[0026] (5) evenly smear vegetable oil on the surface of the diced sweet potato processed by vacuum, so that its surf...

Embodiment 2

[0031] A processing method of red-heart detoxified sweet potato dices, comprising the steps in the following order:

[0032] (1) Peel the selected high-quality sweet potatoes with a peeler, and then dice them with a dicing machine. The size of the diced sweet potatoes is 1×1cm;

[0033] (2) diced sweet potatoes are put into a 30% edible white vinegar solution and soaked for 8 minutes;

[0034] (3) Place the diced sweet potatoes at -20°C for static treatment for 18 hours, freeze them and place them indoors to raise the temperature to room temperature;

[0035] (4) After cooling, diced sweet potatoes are soaked in sodium selenite solution, soaking time is 5 hours, soaking temperature is 40 ℃, then put into vacuum tank, utilize vacuum pump to evacuate negative pressure for 6 hours, the pressure in the vacuum tank is -3Mpa;

[0036] (5) evenly smear vegetable oil on the surface of the diced sweet potato processed by vacuum, so that its surface is evenly rich in vegetable oil;

...

Embodiment 3

[0041] A processing method of red-heart detoxified sweet potato dices, comprising the steps in the following order:

[0042] (1) Peel the selected high-quality sweet potatoes with a peeler, and then dice them with a dicing machine. The size of the diced sweet potatoes is 1×1cm;

[0043] (2) the diced sweet potato is put into the edible white vinegar solution with a mass concentration of 40% and soaked for 6 minutes;

[0044] (3) Place the diced sweet potatoes at -20°C for static treatment for 24 hours, freeze them and place them indoors to raise the temperature to room temperature;

[0045] (4) After cooling, diced sweet potatoes are soaked in sodium selenite solution, soaking time is 5 hours, soaking temperature is 45 ℃, then put into vacuum tank, utilize vacuum pump to evacuate negative pressure for 7 hours, the pressure in the vacuum tank is -2Mpa;

[0046] (5) evenly smear vegetable oil on the surface of the diced sweet potato processed by vacuum, so that its surface is ...

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PUM

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Abstract

The invention provides a processing method for a diced virus-free red-pulp sweet potato. The processing method comprises the following successive steps: (1) peeling and dicing; (2) soaking with an edible white vinegar solution; (3) refrigeration; (4) soaking with a selenium-rich solution and vacuum negative-pressure treatment; (5) uniform smearing of the surface of a diced sweet potato having undergone vacuum treatment with vegetable fat; (6) frying in a vacuum frying apparatus until the surface of the diced sweet potato is golden yellow; and (7) centrifugation and de-oiling of the fried diced sweet potato so as to obtain the finished diced virus-free red-pulp sweet potato. According to the invention, the diced sweet potato is soaked with the edible white vinegar solution and then undergoes surface smearing of the vegetable fat, so the diced sweet potato is prevented from browning; the diced sweet potato is subjected to freezing before frying, so the inner cell structure of the diced sweet potato can be torn up; soaking in the selenium-rich solution provides the diced sweet potato with elemental selenium so as to meet demands of the human body for elemental selenium; and the fried diced sweet potato is more crispy and is not prone to moisture regain after long-term preservation.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for processing red-heart detoxified diced sweet potatoes. Background technique [0002] Sweet potato (Sweet Potato), commonly known as sweet potato, sweet potato, sweet potato, sweet potato, belongs to Convolvulaceae crops. Sweet potatoes contain a variety of nutrients needed by the human body, among which vitamin B 1 , B 2 The content of rice is 6 times and 3 times higher than that of rice respectively. In particular, sweet potatoes are rich in lysine, while rice and flour lack lysine. According to scientific research, eating sweet potatoes will not make people fat. On the contrary, sweet potatoes are an ideal diet food and have certain health care effects. Along with the raising of people's living standard, sweet potato is processed into various leisure food. Common ones include sweet potato chips, sweet potato strips, sweet potato cakes, sweet potato shre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/10A23L33/16A23L5/10
CPCA23V2002/00A23V2200/30A23V2250/1626
Inventor 杨英
Owner PUER LVHAI BIOLOGICAL DEV CO LTD