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Method for extracting grease enriched with functional components

A functional oil technology, applied in the direction of fat oil/fat production, fat generation, etc., can solve the problems of high operating cost, high equipment requirements, small processing capacity, etc., and achieve the goal of reducing solvent consumption, improving extraction efficiency, and increasing oil concentration Effect

Inactive Publication Date: 2009-11-18
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the advantage of low-temperature leaching. The biggest advantage lies in the high purity of selective leaching oil, which can meet the requirements of food grade without refining. However, it is difficult to apply it on a large scale because of its high requirements for equipment.
In addition, the above-mentioned methods (1), (2), and (3) are not ideal for the extraction of some functional components, and although the method (4) is better for the extraction of oils and various functional components, but due to equipment Difficult to promote due to high requirements, small processing capacity and high operating costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The wheat germ was placed in a vacuum drying oven, and dried at a temperature of 60° C. and a vacuum pressure of 100 Pa for 90 minutes, and the final moisture content was 6%. Firstly, in a continuous reflux extractor, the azeotropic system of n-hexane / acetone (35.2:64.8, mol / mol, boiling point 49.8° C.) was used for reflux extraction at an extraction temperature of 45° C. and an extraction solvent flow rate of 55 mL / min / kg of wheat germ for 35 minutes; Vacuum evaporation removes the solvent remaining in the wheat germ after the first extraction, the vacuum degree is 0.05~0.1MPa, the temperature is 75~80°C, and the time is 45min, then use n-hexane / n-butanol (96.3:3.7, mol / mol, The boiling point is 68.2°C) and the azeotropic system is refluxed and extracted for 20 minutes at an extraction temperature of 45°C and an extraction solvent flow rate of 55mL / min / kg wheat germ. The crude oil obtained after extraction was desolvated and dehydrated by rotary evaporation at a rotati...

Embodiment 2

[0019] Put the camellia seed in a conditioner, condition it at 75°C for 45 minutes, and then puff it at 120°C. The puffed material was placed in a vacuum drying oven, dried for 90 minutes at a temperature of 60° C. and a vacuum pressure of 100 Pa, and the final moisture content was 6%. The material is firstly used in the continuous reflux extractor with n-hexane / n-butanol (96.3:3.7, mol / mol, boiling point 68.2°C) azeotropic system at an extraction temperature of 63°C and an extraction solvent flow rate of 60mL / min / kg Camellia oleifera seed Reflux extraction for 45 minutes; vacuum evaporation to remove the solvent remaining in the wheat germ after the first extraction, vacuum degree 0.05-0.1MPa, temperature 75-80°C, time 45 minutes, and then use 1,2-dichloroethane / isopropyl Alcohol (52.58:47.42, mol / mol, boiling point 74.1°C) azeotropic system was refluxed and extracted for 30min at an extraction temperature of 70°C and an extraction solvent flow rate of 60mL / min / kg wheat germ....

Embodiment 3

[0021]Put the rice bran in a conditioner, condition it at 85°C for 15 minutes, and then puff it at 125°C. First, in a continuous reflux extractor, use n-hexane / ethyl acetate (65.7:34.3, mol / mol, boiling point 64.85°C) azeotropic system at an extraction temperature of 45°C and an extraction solvent flow rate of 45mL / min / kg rice bran for 45min under reflux extraction ; Vacuum evaporation removes the solvent remaining in the wheat germ after the first extraction, vacuum 0.05~0.1MPa, temperature 75~80°C, time 45min, then utilize n-hexane / n-butanol (96.3: 3.7, mol / mol , boiling point 68.2°C) the azeotropic system was refluxed and extracted for 30min at an extraction temperature of 63°C and an extraction solvent flow rate of 45mL / min / kg wheat germ. The crude oil obtained after extraction was desolvated and dehydrated by rotary evaporation at a rotation speed of 120 rpm, a vacuum degree of 0.1 MPa, a temperature of 85° C., and a time of 30 min. After analysis, the extraction rates o...

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Abstract

The invention discloses a method for extracting grease enriched with functional components, which comprises the following steps: selecting a proper auxiliary agent to establish an azeotropic system as an extraction solvent aiming at the characteristics of the grease and the functional components of different oil materials; and using a continuous reflux extractor or a batch type leacher to extract the grease and the functional components from the oil materials step by step so as to obtain oil enriched with the functional components. The method has the characteristics of high extraction efficiency, mild conditions and the like. The method is applicable to preparing the oil enriched with the functional components corresponding to various oil materials.

Description

technical field [0001] The invention belongs to the field of preparation of enriched functional component oil. Background technique [0002] In addition to the main component of triglycerides, natural oils derived from oil plants also contain functional ingredients such as vitamin E (VE) and phytosterols. In addition, some special oils also contain other functional ingredients such as carotene, oryzanol, flavonoids, proanthocyanidins, squalene, resveratrol, and long-chain fatty alcohols. For example, the VE content of wheat germ oil is generally 1790-3200 mg / kg, of which α-body and β-body VE account for a large proportion, accounting for about 49%-59% and 28%-29% respectively, which is beyond the reach of other vegetable oils In comparison, the physiological activity of wheat germ natural oil VE is about 30 times that of synthetic VE. It is an extremely valuable nutrient and antioxidant. It has the functions of eliminating free radicals in the body and anti-atherosclerosis....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 单良王兴国刘元法谢丹潘秋琴金青哲黄健花宋志华
Owner JIANGNAN UNIV