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A method for continuously preparing protein, phytic acid and polysaccharide from hot-pressed peanut meal

A hot-pressed peanut meal and protein technology, which is applied in the fields of phytic acid, continuous protein and polysaccharide preparation, can solve the problems of resource waste, less development and research, and low product purity, so as to improve utilization rate, save energy, and optimize separation process Effect

Inactive Publication Date: 2017-02-01
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, peanut meal is mainly used as feed, and the development of peanut meal is limited to the extraction and utilization of peanut meal protein. Good results have been achieved, and a variety of peanut protein products have been developed, but there are few researches on the development of polysaccharides and phytic acid in peanut meal. , there are no more than 10 domestic literatures reporting on the optimization of the extraction process of crude polysaccharides from peanut meal, and only 3 reports on the development and research of phytic acid in peanut meal. It can be seen that the current bulk peanut meal resources have not been developed and utilized, resulting in a serious waste of resources.
The existing extraction process only extracts a single crude extract of the active substance in the raw material, which has disadvantages such as low product purity and serious waste of resources. Therefore, a continuous synergistic extraction process with high extraction rate and high purity of active ingredients needs to be developed

Method used

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  • A method for continuously preparing protein, phytic acid and polysaccharide from hot-pressed peanut meal

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A method for continuously preparing protein, phytic acid, and polysaccharides from hot-pressed peanut meal, said method comprising the following steps:

[0033] (1) Raw material pretreatment

[0034] The hot-pressed peanut meal is crushed to 800-1000 mesh to obtain hot-pressed peanut meal powder;

[0035] (2) Ultrasonic water extraction

[0036] Add deionized water to the hot-pressed peanut meal powder according to the ratio of solid to liquid of 1~3:15, stir evenly, ultrasonically extract for 10~20min, centrifuge the extract, and collect the residue and supernatant;

[0037] The residue was extracted 1-3 times according to the above method to obtain residue 1, and the supernatants of each treatment were combined to obtain supernatant 1;

[0038] (3) Crude protein extraction

[0039] The supernatant 1 obtained in step (2) is concentrated and freeze-dried to obtain crude protein powder;

[0040] (4) Hydrochloric acid leaching

[0041] After drying the residue 1 obta...

Embodiment 2

[0052] This example is a preferred solution based on Example 1, and provides a method for continuously preparing protein, phytic acid, and polysaccharides from hot-pressed peanut meal. For the parts in this embodiment that are the same as those in Embodiment 1, please refer to the content disclosed in Embodiment 1 for understanding. The content disclosed in Embodiment 1 should also be regarded as the content of this embodiment, and will not be described repeatedly here.

[0053] The method for continuously preparing protein, phytic acid and polysaccharide from hot-pressed peanut meal mainly includes the following steps:

[0054] Crush the hot-pressed peanut meal to 800-1000 mesh to obtain hot-pressed peanut meal powder; weigh the hot-pressed peanut meal powder, add deionized water according to the ratio of solid to liquid of 1:15 (g:mL), and stir evenly , 200W ultrasonic extraction at 40°C for 15min, centrifuge the extract at 4000r / min for 10min, collect the residue and supern...

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Abstract

The invention discloses a method for continuous preparation of protein, phytic acid and polysaccharide from hot-pressed peanut meal. The hot-pressed peanut meal serves as a raw material for cogeneration of the peanut phytic acid, the protein and the polysaccharide by a continuous process. The method for continuous preparation of protein, phytic acid and polysaccharide from the hot-pressed peanut meal mainly includes the steps: (1) pretreatment of the raw material, (2) ultrasonic water extraction, (3) crude protein preparation, (4) hydrochloric acid solution extraction, (5) crude phytic acid preparation, (6) hot water extraction and (7) crude polysaccharide preparation. The method has the advantages that utilization rate of the raw material can be increased, production cost is low, and prepared products are high in purity.

Description

technical field [0001] The invention belongs to the technical field of food processing, in particular to a method for continuously preparing protein, phytic acid and polysaccharide from hot-pressed peanut meal. Background technique [0002] my country is a large peanut producing country in the world, and its annual peanut production ranks first in the world. At present, my country's peanut processing and comprehensive utilization is in the primary processing stage, mainly used to extract peanut oil, about 50-60% of peanuts are used for oil extraction, about 25% are directly eaten, 5-8% are used for export, and seed retention and other uses account for 15%. Most enterprises in our country adopt the traditional hot pressing method, and the by-product peanut meal after oil pressing is about 9 million tons per year. Peanut meal is rich in nutrients such as protein, sugar, phytic acid, amino acid, various mineral elements and peanut red pigment, among which the protein content i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00C08H1/00C07F9/117
Inventor 任虹李婷
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY