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Method for extracting alpha-starch from cyperus esculentus

An extraction method, the technology of oily bean, which is applied in the field of extraction of α-starch in oily bean by means of puffing technology, can solve the problems of low starch rate, unstable starch properties, easy introduction of impurities, etc., and achieve simple starch refining , No reagent residue, increase the effect of contact chance

Inactive Publication Date: 2020-11-10
CHINESE ACAD OF AGRI MECHANIZATION SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The conventional extraction process of oily bean starch is to use the cake after oil extraction as the main raw material, soak and extract with lime water, the starch yield is low, impurities are easily introduced, and the starch properties are unstable

Method used

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  • Method for extracting alpha-starch from cyperus esculentus
  • Method for extracting alpha-starch from cyperus esculentus

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0033] see figure 1 , figure 1 It is a method flow chart of an embodiment of the present invention, and the method for extracting α-starch in the oil-sand bean of the present invention comprises the following steps:

[0034] Step S100, extrusion and puffing pretreatment, extrusion and puffing treatment is carried out according to the characteristics of different oily bean raw materials, the process conditions of the extrusion and puffing pretreatment are preferably: the moisture content of the raw material of the oily bean is 8% to 12% , the puffing temperature of the extruder is 120-140°C, the screw speed of the extruder is 120-140r / min, and the die hole diameter of the extruder is 8-12mm;

[0035] Step S200, crushing the extruded and puffed oily bean raw material with a wall breaker or a pulverizer, and passing the crushed...

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Abstract

The invention discloses a method for extracting alpha-starch from cyperus esculentus. The method comprises the following steps: carrying out extrusion treatment according to the characteristics of different cyperus esculentus raw materials; crushing the extruded cyperus esculentus raw material by using a wall breaking machine or a crusher, and sieving the crushed cyperus esculentus powder by usinga sieve for later use; enabling the crushed and sieved cyperus esculentus raw material to directly enter a petroleum ether extractor to prepare cyperus esculentus oil and solvent mixed liquid for leaching, and heating, evaporating and recovering the solvent to extract the oil by utilizing different boiling points and volatility of the cyperus esculentus oil and the solvent; adding distilled waterinto the deoiled cyperus esculentus powder for constant-temperature water bath, and fully dissolving soluble total sugar in the cyperus esculentus powder under the assistance of ultrasonic waves; carrying out centrifugal treatment on the cyperus esculentus turbid liquid, and carrying out solid-liquid separation to obtain a cyperus esculentus crude starch precipitate; washing and screening the starch paste of the cyperus esculentus crude starch precipitate with distilled water to obtain a final precipitate; and purifying the final precipitate by adopting low-temperature hot air drying or vacuum freeze drying to obtain the cyperus esculentus starch.

Description

technical field [0001] The invention relates to a process method for starch in oily bean, in particular to an extraction method for extracting α-starch in oily bean by using puffing technology. Background technique [0002] Cyperus esculentus, also known as oil sedge, iron water chestnut, ground almond, underground chestnut, underground walnut, etc., is an annual plant of Cyperaceae, native to Africa and countries along the Mediterranean Sea. A high-quality, high-yielding, comprehensive utilization of promising economic crops that integrate grain, oil, animal husbandry and animal husbandry. [0003] Shadou is a new type of oil crop vigorously promoted in my country. It has strong adaptability and is introduced in China and planted in Heilongjiang, Beijing, Hebei, Hunan, Shandong, Sichuan and other places. It is a new type of special grain and oil crop with high quality, high yield and high comprehensive utilization value for oil, grain and feed. It has been included in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04
CPCC08B30/04
Inventor 赵庆亮曹有福张小燕杨炳南兴丽李少萍郭亚琳王燕妮刘瑞祥李紫豪郭莹莹
Owner CHINESE ACAD OF AGRI MECHANIZATION SCI
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