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A method for simultaneously extracting starch and protein

An extraction method, starch technology, applied in the field of plant extraction, can solve the problems of polluted environment, long production time, large water consumption, etc., and achieve the effect of solving water pollution

Active Publication Date: 2021-02-26
重庆多典生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the above method to extract starch and protein, there are still many problems, mainly including: 1. The production time is too long. The traditional physalis fermentation method needs 36-48 hours from soaking raw materials to producing starch and protein products; 2. Water consumption The amount of water is large. The traditional physalis fermentation method consumes 50-60 tons of water per ton of starch, and 250-300 tons of water per ton of protein; 3. The sewage treatment volume is large and the treatment time is long. Currently, AC tanks are mostly used to treat sewage, and equipment investment High, high production cost, small workshops do not treat direct discharge, seriously pollute the environment, and a large amount of organic matter in sewage, serious waste of resources; 4. The quality of starch and protein is greatly affected by climatic conditions, better production in spring and winter, and lower quality High, the temperature is high in summer and autumn, and it is easy to infect miscellaneous bacteria. Inverted tanks often occur in the industry (and starch, protein, and soluble fiber are not separated); 5: High investment in equipment, most large manufacturers use 24 grades or 7-8 Level horizontal centrifuges, as well as supporting spray drying towers, AC tanks and other equipment have invested a total of tens of millions; The production speed of this method is fast, but the quality of starch and protein is poor, mainly manifested in the high fiber content in starch, and the high fiber and starch in protein, which makes it difficult to apply in starch and protein products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035]3 tons of peas were mechanically peeled to obtain 2.8 tons of raw material endosperm. The obtained raw material endosperm was crushed into a pulverizer with a particle size of more than 60 mesh. Separately, the powder at the end of the fan can be directly used as feed-grade protein; take out about 2.4 tons of powder with a particle size of more than 60 mesh (usually 100-200 mesh) at the powder outlet of the pulverizer, add water to the slurry, that is, add 17 tons of water, stir evenly, promptly obtain raw material slurry, then add the sodium hydroxide solution that concentration is 1mol / L in above-mentioned raw material slurry (adding sodium hydroxide solution is in order to leach the alkali-soluble protein in the pea) to adjust pH, When the pH value was adjusted to 7.5, stop adding the sodium hydroxide solution, stir and leach for 1 hour, leave to settle for 1.5 hours, and siphon all the aqueous solution (siphon for the first time) on the upper part of the siphon, leavi...

Embodiment 2

[0040] Mechanically peel 3 tons of wheat to obtain 2.7 tons of raw material endosperm. The obtained raw material endosperm is crushed in a pulverizer, and the particle size reaches 60 mesh or more. After taking out the powder with a particle size of 60 mesh or more at the powder outlet end of the pulverizer (100-200 mesh) , add water to adjust the slurry, that is, add 16.2 tons of water to the powder taken out, stir evenly, and obtain the raw material slurry, then add a sodium carbonate solution with a concentration of 1mol / L to the above raw material slurry (adding the sodium carbonate solution is for extracting wheat Alkali-soluble protein) to adjust the pH, when the pH value was adjusted to 10, stop adding the sodium carbonate solution, stir and extract for 2 hours, obtain starch milk after standing for precipitation for 3 hours, and then siphon all the aqueous solution on the upper part (No. One siphon), 4 tons of starch milk remain at the bottom after the siphon, add water...

Embodiment 3

[0042] Clean 3 tons of potatoes, then add 15 tons of water to pulverize in a pulverizer, use a 60-mesh sieve to sieve in a sieving machine, remove the protein and fiber in the material with a particle size greater than 60 mesh, and use the 60-mesh sieve as Raw material slurry, then adding a calcium hydroxide solution with a concentration of 1mol / L in the above-mentioned raw material slurry (adding sodium hydroxide solution is to extract the alkali-soluble protein in the potato) to adjust the pH, when the pH value is adjusted to 11, stop Add the sodium hydroxide solution, stir and extract for 2.5 hours, and obtain starch milk after standing for 2 hours, and then siphon all the aqueous solution on the upper part (siphon for the first time), and leave 1.5 tons of starch milk at the bottom after siphoning, add water again to adjust slurry, that is, add 4 tons of water to the starch milk again, stir evenly, and then add a sodium hydroxide solution with a concentration of 1mol / L to a...

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Abstract

The invention relates to a method for simultaneously extracting starch and protein, including raw material pretreatment, extraction treatment and product post-treatment. The extraction method provided by the invention has the advantages of fast production speed, less investment in equipment, lower water consumption, less sewage generation and high product quality.

Description

technical field [0001] The invention belongs to the field of plant extraction, and in particular relates to a method for simultaneously extracting starch and protein. Background technique [0002] Starch is a nutrient stored in plants. It is stored in seeds and tubers. The starch content in various plants is relatively high. Rice contains 62% to 86% of starch, and wheat contains 57% to 75% of starch. Starch is a polysaccharide, which can also be regarded as a high polymer of glucose, and is an important part of food. In addition to food, starch is also the basic raw material for further processing. It is widely used in industry. It is mainly used to make dextrin, maltose, glucose, alcohol, etc. It is also used to prepare printing paste, textile sizing, paper sizing, and pharmaceutical tablets. Agent suppression, etc. [0003] Protein is an indispensable substance for human and animal nutrition. Protein can be divided into two categories: vegetable protein and animal protei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07K1/34C07K1/30C07K1/14C08B30/02C08B30/04
CPCC07K1/14C07K1/30C07K1/34C08B30/02C08B30/042C08B30/046C08B30/048
Inventor 周山
Owner 重庆多典生物科技有限公司