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A kind of processing method of using bio-fermentation technology to produce full price purple potato powder

A technology of purple potato whole powder and processing method, applied in the direction of food science and the like, can solve the problems such as the degradation of macromolecular substances of purple potato, large variation and loss of anthocyanin, and poor rehydration, etc., and shorten the fermentation time. , The effect of small loss of nutrients and small ventilation

Active Publication Date: 2016-02-03
HUNAN TIANXIANG BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the deficiencies of the existing purple sweet potato powder production technology, such as defects such as large variation and loss of anthocyanins, poor rehydration, jerky taste, etc., as well as the inability to effectively solve the degradation of macromolecular substances in purple sweet potato itself, which may easily cause abdominal distension etc., provide a kind of preparation method of whole price purple sweet potato powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 The operation steps are as follows:

[0017] 1. Selection of purple sweet potatoes: Choose "Tianxiang No. 1" purple sweet potatoes cultivated in the Xuefeng Mountain area of ​​Longhui County, Hunan Province. The content of selenium and anthocyanins is more than 4 times higher than that of purple sweet potato varieties in other regions; the selection is free from pests. , No mildew, fresh purple sweet potato as raw material for processing;

[0018] 2. Peeling and cleaning: remove the purple potato skin, rinse the purple potato with water, and remove impurities such as broken skin and sediment;

[0019] 3. Diced: Use a multi-blade cutting machine to dice the purple sweet potato, and cut it into 5mm*5mm*5mm~10mm*10mm*10mm particles;

[0020] 4. Color protection: use the color protection solution to harden and protect the diced purple potato for 10-30 minutes. The color protection solution is water: citric acid: acetic acid = 1:0.001-0.002:0.0005-0.001 by weigh...

Embodiment 2

[0027] Example 2 Use fresh white-hearted sweet potatoes without pests and mildew as raw materials, remove the skin of the sweet potatoes, rinse the sweet potatoes with water, and remove impurities such as broken skin and sediment; use a multi-blade cutting machine to cut the sweet potatoes into dices of 5mm*5mm*5mm, The color protection solution is used to treat the diced sweet potatoes for 30 minutes. The color protection solution is mixed by weight ratio of water: citric acid: acetic acid = 1:0.001~0.002:0.0005~0.001, and the ratio of solid to liquid is 2:1; The diced sweet potato after color protection is subjected to primary ripening by microwave, the microwave power is 20KW, the processing time is 2min, and the processing capacity is 8kg. The diced sweet potatoes after the primary ripening are crushed and enter the twin-screw extruder for secondary ripening, the screw speed is 50r / min, and the puffing temperature is 130°C; According to the inoculum amount of 20ml / kg swe...

Embodiment 3

[0028] Example 3 Use fresh sweet potatoes with no pests and mildew as raw materials, remove the skin of the sweet potatoes, rinse the sweet potatoes with water, and remove impurities such as broken skin and sediment; use a multi-blade cutting machine to cut the sweet potatoes into 10mm*10mm*10mm cubes The color solution is used for 30 minutes of color protection treatment on diced sweet potatoes. The color protection solution is mixed by weight ratio of water: citric acid: acetic acid = 1:0.001~0.002:0.0005~0.001, and the ratio of solid to liquid is 2:1; The diced sweet potatoes after coloring are subjected to primary ripening by microwave, the microwave power is 18.2KW, the processing time is 2min, and the processing capacity is 7kg; the diced sweet potatoes after the primary ripening are crushed and enter the twin-screw extruder for secondary ripening, the screw speed is 40r / min, the puffing temperature is 110°C; the sweet potatoes after secondary ripening are cooled to ab...

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Abstract

A processing method for producing full-price purple sweet potato powder using biological fermentation technology, including selection of purple sweet potato, peeling and cleaning, dicing, color protection, microwave enzyme elimination, sterilization, drying, crushing, packaging, and is characterized by color protection Afterwards, the following treatment is carried out: fresh purple sweet potatoes undergo primary microwave ripening after color protection, power 14-20KW, processing time 1-2min, processing capacity 5-8KG; crush primary ripe purple sweet potato granules and enter into twin-screw extrusion Press expansion and secondary aging; then solid-state fermentation with Aspergillus oryzae. The full-price purple sweet potato powder prepared by the present invention can retain various functional components in the purple sweet potato, such as anthocyanins, etc., and has good rehydration and mouthfeel; and the oligosaccharides, Ingredients such as amino acids, dietary fiber, higher alcohols and esters not only effectively solve the problem of abdominal distension, but also increase the added value of the product. The product has a unique flavor and has health benefits. The invention has the advantages of simple process, short production period, energy saving and high efficiency, safety and environmental protection.

Description

technical field [0001] The invention relates to a processing method for producing full-priced purple sweet potato powder, and belongs to the technical field of intensive processing of agricultural products. Background technique [0002] Purple sweet potato, also known as black sweet potato, has purple to dark purple flesh. Its main components are starch, water, protein, cellulose, inorganic salt, fat, vitamins, etc. It includes 18 kinds of essential amino acids, vitamins C, B, 8 kinds of vitamins such as A and more than ten kinds of mineral elements such as phosphorus and iron, and high content of cellulose can improve the function of the human intestinal tract; it also contains selenium and anthocyanins with high medicinal value. An essential element for fatigue and anti-aging, it has good health care functions; in addition, it also repairs the myocardium, enhances the body's immunity, inhibits the synthesis of DNA in cancer cells and the division and growth of cancer cells...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L19/10A23L19/15
Inventor 黄名勇邓后勤王娟慧黄民达岳芙蓉
Owner HUNAN TIANXIANG BIOTECHNOLOGY CO LTD
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