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Corn steam explosion separation and endosperm multi-component co-production utilization technology thereof

A technology for separation of corn endosperm and steam explosion, which is applied in applications, degerming of grains, biofuels, etc., can solve the problems of pollution, low degree of comprehensive utilization of corn deep processing, and high energy consumption of degerming, so as to reduce the process and production time, save gelatinization link, low energy consumption effect

Inactive Publication Date: 2009-12-23
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to use steam explosion technology to degerm the corn and extract the corn with high added value in view of the high energy consumption and polluting nature of degerming in the existing deep processing of corn, and the low degree of comprehensive utilization of corn deep processing ingredients to realize the comprehensive utilization of corn

Method used

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  • Corn steam explosion separation and endosperm multi-component co-production utilization technology thereof
  • Corn steam explosion separation and endosperm multi-component co-production utilization technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take corn sample 1 (large grain), soak it for 72 hours, put the soaked corn into the steam explosion tank equipment, the working pressure in the steam explosion tank equipment is 1.5Mpa, maintain the pressure for 6 minutes, and release the pressure instantly, which can realize the endosperm and germ The three are well separated from the seed coat, and there is no coking phenomenon.

Embodiment 2

[0035] Take corn sample 2 (medium grain), soak it for 24 hours, and put the soaked corn into the steam explosion tank equipment. The separation of germ and seed coat, and no coking phenomenon occurs.

Embodiment 3

[0037] Take a sample of corn 3 (small grains), soak for 24 hours, put the soaked corn into the steam explosion tank equipment, the working pressure in the steam explosion tank equipment is 1.5Mpa, maintain the pressure for 3 minutes, and release the pressure instantly, which can realize the endosperm and germ The separation of the three and the seed coat, and no coking phenomenon occurs.

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Abstract

The invention aims at the characteristics of complicated process, high energy consumption and high pollution in wet degerming of the existing method of corn deep processing and provides a steam explosion technology for degerming corn and a poly-generation technology for deeply processing corn endosperm.Corn kernals are processed by the steam explosion technology, so that the separation among the endosperm, embryo and testa can be realized. After steam explosion, the corn endosperm is extracted by ethanol and then is distilled, precipitated and the like, so that alcohol-soluble protein and uranidin product can be respectively obtained. After the alcohol-soluble protein and the uranidin of the endosperm are extracted, the endosperm can be used for fermenting the ethanol, and the fermentation effect of the endosperm is slightly better that that of corn endosperm prepared by the wet degerming; furthermore, the step of gelatinization before saccharification and liquidation can be omitted, so that the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the field of deep processing of agricultural and sideline products, and in particular relates to extracting germs of corn and comprehensive utilization of endosperm by steam explosion technology. Background technique [0002] Corn is a high-value economic crop. The seeds of corn include pericarp, seed coat, embryo and endosperm, but the pericarp and seed coat are closely connected and difficult to separate. The embryo is located on the side of the base of the grain, accounting for 10-15% of the total weight of the grain, the endosperm accounts for 80-85%, and the pericarp and seed coat account for 6-8%. Corn grain contains 70-75% starch, about 10% protein, 4-5% fat, and about 2% multivitamins. The fat in the embryo accounts for 77%-89% of the whole grain fat, the protein accounts for more than 30%, and contains a large amount of soluble sugar. Corn starch is mainly concentrated in the endosperm, which is also rich in yellow p...

Claims

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Application Information

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IPC IPC(8): B02B3/00C09B61/00
CPCY02E50/17Y02E50/10
Inventor 陈洪章迟菲
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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