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
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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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