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Crystallization method for separating and purifying sterol from vegetable oil deodorizer distillate

A technology for deodorizing distillates and purifying sterols, which is applied in the field of separation and purification of biologically active phytosterols, which can solve the problems of large environmental pollution and low yield, achieve high purity and yield, simple and efficient process, and obvious economic benefits Effect

Active Publication Date: 2012-01-04
丰益生物科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of multiple simple recrystallizations, the yields are all low, causing great environmental pollution

Method used

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  • Crystallization method for separating and purifying sterol from vegetable oil deodorizer distillate
  • Crystallization method for separating and purifying sterol from vegetable oil deodorizer distillate

Examples

Experimental program
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Effect test

Embodiment 1

[0023] (1) The deodorized distillate of Nanhai Oils and Fats leaves factory is through methyl esterification reaction, washing, layering, obtains the esterification liquid of oily phase; Take 100g esterification liquid and add in a 1000ml jacketed glass crystallizer, The temperature of the solution in the crystallizer is controlled by a Julabo FP 50 cooling / heating circulating water bath, and the Corning PC-353 magnetic stirrer is used for thorough mixing. When the temperature of the solution reaches 45°C, add 2g of methanol and 1g of water, and cool down to 25°C at a rate of 0.02°C / min, and then continue to cool down at a rate of 0.05°C / min; when the temperature of the crystallization solution reaches 5°C , carry out temperature cycle operation, that is, first raise the temperature to 10°C at a rate of 0.02°C / min, then lower the temperature to 5°C at the same rate, and finally maintain a constant temperature of 5°C, and grow the crystal for 4 hours; after the crystallization i...

Embodiment 2

[0026] (1) The deodorized distillate produced by Fujian Kanghong is subjected to methyl esterification, water washing, and layering to obtain the esterification liquid of the oil phase; and weigh 100g of the esterification liquid and add it to a 1000ml jacketed glass crystallizer , the temperature of the solution in the crystallizer is controlled by a Julabo FP50 cooling / heating circulating water bath, and fully mixed by a Corning PC-353 magnetic stirrer; when the solution temperature reaches 45 ° C, add 2 g of methanol and 1 g of water, and Cool down to 25°C at a rate of 0.02°C / min, and then continue to cool down at a rate of 0.05°C / min; when the temperature of the crystallization liquid reaches 5°C, perform a temperature cycle operation, that is, first raise the temperature to 10°C at a rate of 0.02°C / min , then lower the temperature to 5°C at the same rate; finally keep the constant temperature at 5°C, and grow the crystal for 4 hours; Dissolve in 132ml of n-hexane and etha...

Embodiment 3

[0029](1) The deodorized distillate produced by Shanghai Kerry undergoes methyl esterification reaction, water washing, and layering to obtain the esterification liquid of the oil phase; and weigh 100g of the esterification liquid and add it to a 1000ml jacketed glass crystallizer In the crystallizer, the temperature of the solution in the crystallizer is controlled by a Julabo FP50 cooling / heating circulating water bath, and the Corning PC-353 magnetic stirrer is used to fully mix; when the solution temperature reaches 45 ° C, add 2 g of methanol and 1 g of water, And cool down to 25°C at a rate of 0.02°C / min, and then continue to drop at a rate of 0.05°C / min; when the temperature of the crystallization liquid reaches 5°C, perform a temperature cycle operation, that is, first raise the temperature to 10°C at a rate of 0.02°C / min ℃, then lower the temperature to 5 ℃ at the same rate; finally keep the constant temperature at 5 ℃, and grow the crystal for 4 hours; Dissolve in 16...

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Abstract

The invention discloses a crystallization method for separating and purifying sterol from esterified liquid after esterification reaction of vegetable oil deodorizer distillate, which comprises the steps of adding a certain amount of methanol and water into the esterified liquid as anti-solvents, adopting the methods of staged temperature reduction and temperature cycle, effectively separating the sterol from the esterified liquid and adopting ethanol-n-hexane mixed solution for carrying out re-crystallization on a crude sterol product, thereby obtaining a fine sterol product. The method has the advantages of simple and high-efficient process, energy conservation, and environmental protection, and can improve the yield of the sterol by more than 10% and improve the purity of the sterol by2-3%.

Description

technical field [0001] The invention relates to a method for separating and purifying bioactive substance phytosterol, more specifically, the present invention relates to a method for effectively separating and purifying phytosterol from vegetable oil deodorized distillate. Background technique [0002] Natural vitamin E has physiological functions such as promoting the secretion of sex hormones and improving reproductive ability, enhancing body immunity, preventing vascular sclerosis, delaying aging, enhancing liver detoxification, assisting in anti-cancer and treating diabetes. Natural vitamin E is mainly distributed in vegetable oil, germ, nuts, seeds and so on. At present, natural vitamin E is mainly extracted from the deodorized distillate (DD oil) in the refining process of rapeseed oil, soybean oil, cottonseed oil and peanut oil, among which the content of vitamin E in the deodorized distillate of soybean oil is relatively high. About 5% to 13%. [0003] In the proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J9/00C07J75/00
Inventor 陆杰陈其林郭春荣叶勤李同斌
Owner 丰益生物科技(江苏)有限公司