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Preparation method of rapeseed oil with high anti-freezing property

A technology of rapeseed oil and antifreeze, which is applied in the field of preparation to improve the antifreeze of rapeseed oil, can solve the problems of affecting oil quality and edible properties, poor antifreeze performance of rapeseed oil, and low cholesterol content, so as to facilitate human body absorption Utilization, oil antifreeze performance is poor, the effect of low extraction rate

Inactive Publication Date: 2017-09-26
合肥市晶谷米业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the existing problems: rapeseed oil consumption problem, rapeseed oil contains arachidic acid, oleic acid, linoleic acid and other nutrients, the absorption rate of human body can reach 99%, it has the functions of softening blood vessels, delaying aging and promoting brain and nerve development, and low cholesterol content; however, due to its wide range of consumption, the temperature in the north is low in winter, and the poor antifreeze performance of rapeseed oil is prone to solidification, which affects the quality and edible properties of the oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for improving antifreeze property of rapeseed oil, comprising the following steps:

[0020] (1) Raw material removal: Use a 80-100 mesh screen to remove light impurities from the rapeseed mixture, and place it in an electromagnetic vibrating screen to vibrate to remove metal impurities, where the electromagnetic can adsorb metal impurities in the mixture;

[0021] (2) Stir-frying: the rapeseed mixture is removed from the impurities, and the rapeseed mixture powder is obtained after microwave heating, frying and micronization. The energy generated by microwave can destroy cells and promote the release of intracellular components. The micronization of raw materials is in the follow-up processing The contact area with the enzyme is increased to improve the efficiency of enzymatic hydrolysis;

[0022] (3) Enzymolysis: Add mixed enzyme solution a to rapeseed powder, cellulase and pectinase can dissolve plant cell walls, promote the release of intracellul...

Embodiment 2

[0032] Present embodiment 2 compares with embodiment 1, and main steps change in the following aspects:

[0033] For the rapeseed mixture described in step (1), the components by mass are:

[0034] 47 parts of rapeseed, 8.5 parts of camellia seeds, 7 parts of sunflower seeds, 2.6 parts of hickory kernels, 4.2 parts of whole wheat, mixed evenly to obtain a mixture.

[0035] For the microwave heating and frying described in step (2), the heating temperature is 66° C., and the frying time is 29 minutes.

[0036] The mixed enzyme liquid a described in step (3), wherein the mass ratio of pectinase and cellulase is 1:3, the mass concentration of mixed enzyme is 6.2%, the enzymolysis temperature is 44°C, and the enzymolysis time is 2h; Mixed enzyme liquid b, in which the mass ratio of protease and lipase is 8:1, the mass concentration of mixed enzyme is 3%, the amount added is 9% of the mass of rapeseed dough, the enzymatic hydrolysis temperature is 41°C, and the enzymatic hydrolysi...

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Abstract

The invention discloses a preparation method of rapeseed oil with high anti-freezing property. The method is characterized by comprising the following steps: (1) removing impurities of raw materials, specifically, using a filter screen and an electromagnetic vibrating screen to remove light and metal impurities in a mixture; (2) frying, specifically, frying the rapeseed mixture by means of microwave heating, and then carrying out micronizing treatment on the fried rapeseed mixture; (3) carrying out enzymolysis, specifically, adding mixed enzyme a and mixed enzyme b into rapeseed mixed powder, and carrying out enzymolysis at constant temperature; (4) steaming the obtained material, specifically, steaming the molded rapeseed cake at the low temperature and the high temperature; (5) extracting, specifically, carrying out squeezing extraction on the rapeseed cake in a vertical squeezer, and then soaking the squeezed rapeseed cake in 95% ethanol for extracting; (6) curing for storing, specifically, storing the extracted rapeseed oil for 2-3 days at the temperature of 9-13 DEG C, and curing. The preparation method of the rapeseed oil can effectively improve the anti-freezing property of rapeseeds, increases the rapeseed oil extraction rate by 12.33%, and reduces the processing cost of the rapeseed oil by 17.3%.

Description

technical field [0001] The invention belongs to the technical field of edible oil processing, and in particular relates to a preparation method for improving the antifreeze property of rapeseed oil. Background technique [0002] Rapeseed oil, also known as rapeseed oil, coriander oil, and canola oil, is one of the main edible oils in my country. The human body can absorb 99% of rapeseed oil. It has the effects of softening blood vessels and delaying aging. The phospholipids and low cholesterol contained in it can not only promote the development of blood vessels, nerves, and brain, but will not cause long-term consumption of cholesterol to increase. However, due to the wide range of consumption of rapeseed oil, the temperature varies greatly from place to place, especially in winter when the temperature can drop to tens of degrees below zero, and the temperature in the north is basically maintained at around -10°C. However, rapeseed oil gradually becomes turbid at -5°C, form...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06C11B1/10A23D9/02
CPCA23D9/02C11B1/025C11B1/04C11B1/06C11B1/106C11B1/108
Inventor 严晓武
Owner 合肥市晶谷米业有限公司
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