Water-phase enzymolysis extracting method of safflower oil

A technology of safflower seed oil and extraction method, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of reduced added value of safflower seed processing, denaturation of safflower seed protein, adverse effects on human health, etc., and achieve improvement Utilization value, avoiding the oxidation of fat, and reducing the effect of denaturation

Active Publication Date: 2014-01-22
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature pressing method is easy to denature the protein of safflower seeds, and the nutrients are easily destroyed, and the oil yield is low, only about 55%. The safflower seed cake can only be used as feed, which reduces the added value of safflower seed processing. ; The organic solvent extraction method, through the leaching of organic solvents, will cause solvent residues, which will have adverse effects on human health and pollute the environment

Method used

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  • Water-phase enzymolysis extracting method of safflower oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 Shown:

[0031] (1) Remove the shell of safflower seeds, screen out the safflower kernels, treat the safflower kernels with hot air at 50°C for 20 minutes, and cool down with 20°C cold air under a pressure of 3kPa, rub the safflower kernels against each other to remove the coating , and then use air separation to remove the coating;

[0032] (2) Dry-crushing (crushing) the uncoated safflower kernels with a pulverizer to destroy the tissue cells of the safflower kernels to obtain safflower kernel powder with a particle size between 10 and 90 mesh;

[0033] (3) Mix and disperse 1 part of crushed safflower seed kernel powder with 5 parts of water according to the mass parts (water dispersion), adjust the pH value to 6.5 with NaOH solution, and add 0.1% of the mass of safflower seed kernel powder at 50°C neutral protease, enzymatic hydrolysis reaction for 2 hours; then lower the temperature to 30°C, adjust the pH value to 7.5 with NaOH solution, add 0.1% ...

Embodiment 2

[0040] (1) Remove the safflower seed shell, screen out the safflower kernels, treat the safflower kernels with hot air at 60°C for 30 minutes, and cool down with 25°C cold air under a pressure of 10kPa, rub the safflower kernels against each other to remove the coating , and then use air separation to remove the coating;

[0041] (2) Dry-crushing the uncoated safflower kernels with a pulverizer to obtain safflower kernel powder with a particle size between 10 and 150 meshes, and destroy the tissue cells of the safflower kernels;

[0042] (3) Mix 1 part of broken safflower seed kernel powder with 20 parts of water according to the mass parts, adjust the pH value to 7.5 with NaOH solution, add 1% neutral protease of safflower seed kernel powder at 60°C, Enzymolysis reaction for 6 hours; then lower the temperature to 40°C, adjust the pH value to 8.5 with NaOH solution, add alkaline protease with 1% mass of safflower seed kernel powder, and perform enzymolysis reaction for 6 hours...

Embodiment 3

[0045] (1) Remove the shell of safflower seeds, screen out the safflower kernels, treat the safflower kernels with hot air at 55°C for 25 minutes, and cool them with 22°C cold air under a pressure of 6kPa, rub the safflower kernels against each other to remove the coating , and then use air separation to remove the coating;

[0046] (2) Dry-crushing the uncoated safflower kernels with a pulverizer to obtain safflower kernel powder with a particle size between 10 and 60 meshes, and destroy the tissue cells of the safflower kernels;

[0047] (3) Mix 1 part of crushed safflower seed kernel powder with 10 parts of water according to the mass parts, adjust the pH value to 7 with KOH solution, add 0.4% neutral protease of safflower seed kernel powder at 52°C, Enzymolysis reaction for 3 hours; then lower the temperature to 35°C, adjust the pH value to 8 with NaOH solution, add alkaline protease with 0.4% mass of safflower seed kernel powder, and perform enzymolysis reaction for 3 hou...

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Abstract

The invention provides a water-phase enzymolysis extracting method of safflower oil, comprising the following steps of: removing shells of safflower seeds to obtain safflower seed kernels and removing skins of the safflower seed kernels; carrying out dry-method crushing on the safflower seed kernels without the skins to obtain safflower seed kernel powder; mixing the crushed safflower seed kernel powder with water and adjusting pH (Potential of Hydrogen) value; adding neutral protease to carry out enzymolysis reaction; adjusting the pH value and adding alkaline protease to carry out the enzymolysis reaction to obtain an enzymolysis solution; centrifuging the enzymolysis solution and separating from top to bottom to obtain free oil, lactescence, hydrolysate and safflower seed dreg; adding compound plant protease into the lactescence to carry out emulsion breaking; and centrifuging and separating to obtain the free oil, and collecting the obtained free oil to obtain the safflower oil. With the adoption of dry-method crushing, the use amount of an demulsifying agent is reduced and the cost is reduced; the oxidization of fat, caused by squeezing the oil, can be avoided and the nutrition components of the safflower seed are sufficiently remained; and the higher free oil yield can be obtained and the oil yield is 65.6-72.6%.

Description

technical field [0001] The invention belongs to the field of oil extraction, in particular to an aqueous phase enzymatic hydrolysis extraction method of safflower seed oil. Background technique [0002] Safflower (Carthamus tinctorius), also known as grass safflower, belongs to Dicotyledoneae and Compositae. It has the functions of promoting blood circulation, dredging menstruation, removing stasis and relieving pain. It is native to Egypt and is found in many places such as Europe, America, Australia and China. Cultivation, the annual planting area of ​​safflower in the world is about 1.1 million hm 2 , the seed output is about 890,000 tons. Seeds (safflower seeds) contain about 25% oil and 15%-19% crude protein, and their linoleic acid content is the highest among all known vegetable oils, accounting for about 73%-85%. Safflower seed oil has the effects of lowering blood pressure, lowering fat, and softening blood vessels. It can stabilize blood pressure, enhance physica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/04
Inventor 刘贺朱丹实张娟解玉梅何余堂李君宋艳云许婉婷杨陈
Owner BOHAI UNIV
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