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Preparation method of kiwifruit seed oil rich in α-linolenic acid

A technology for kiwifruit seed oil and kiwifruit seeds is applied in the field of preparing kiwifruit seed oil rich in alpha-linolenic acid, and can solve the problems of low purity and limited in-depth utilization.

Inactive Publication Date: 2011-11-30
JOJIA BIO TECH
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  • Claims
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Problems solved by technology

α-linolenic acid contains functional components with important physiological functions, but natural α-linolenic acid often limits its deep utilization due to its low purity

Method used

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  • Preparation method of kiwifruit seed oil rich in α-linolenic acid

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Embodiment Construction

[0024] In order to have a more detailed understanding of the purpose, functions and structural features of the present invention, preferred embodiments are enumerated and described with accompanying drawings as follows.

[0025] see figure 1 , figure 1 It is a schematic diagram of the operation flow of the present invention.

[0026] Such as figure 1 Shown, the preparation method of the kiwi seed oil rich in α-linolenic acid of the present invention, it comprises:

[0027] Step (a) crush the dried kiwifruit seeds to 20-60 mesh (mesh) (ie 830-250 μm) as a raw material, and fill them into an extraction tank (Extractor) 1, the water content of the dried kiwifruit seeds is lower than 10wt %;

[0028] Step (b) with the raw material of step (a) and previously stored in CO 2 After the carbon dioxide in the storage tank 2 is pre-cooled, the carbon dioxide pump (CO 2 Pump) 3 to pressurize, and preheater (Heater) 4 to heat, the insertion temperature is 30-120°C and the extraction...

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Abstract

The invention relates to a method for preparing kiwi seed oil rich in alpha-linolenic acid, which comprises the following steps: (a) pulverizing dried kiwi seeds to 20-60 mu powder to be used as a raw material; (b) putting the raw material of the step (a) into an extraction tank at 30-120 DEG C with extraction pressure of 100-1,000 bar to react with supercritical carbon dioxide solution; (c) putting a product obtained after the reaction of the step (b) in a first separation tank, reducing the pressure and regulating the temperature, separating the product out and separating partial kiwi seed oil; and (d) introducing the product separated from partial kiwi seed oil and separated out of the step (c) into a second separation tank, separating the product out and separating the kiwi seed oil rich in alpha-linolenic acid. The kiwi seed oil is concentrated through a supercritical carbon dioxide extraction process and a two-stage pressure reduction and separation technology, and an alpha-linolenic acid oil product with higher alpha-linolenic acid content than that of the raw material is obtained.

Description

technical field [0001] The present invention relates to a method for preparing kiwifruit seed oil; more specifically, it refers to a method for preparing kiwifruit seed oil rich in α-linolenic acid. Background technique [0002] According to literature data, the oil content in kiwifruit seeds is generally 22-24%, and the vitamin E content in seed oil is 0.81mg / g (see: Wang Xingang, Hu Xiaojun, Li Ansheng, Research on Supercritical Carbon Dioxide Extraction of Kiwifruit Seed Oil, Food and Machinery, 2003, (4): 11~12; Luo Cangxue, Zhang Guangdong, Wang Xu, Yang Kaitai, Extraction of kiwifruit seed oil and analysis of its physical and chemical properties, Journal of Shaanxi University of Science and Technology, 2004, 22(4): 38~41); and Fu Contains a variety of unsaturated fatty acids, lipids, flavonoids, phenols, vitamins, trace element selenium and other bioactive substances (see: Li Jiaxing, Chen Shuangping, Ma Chengjin, Wang Xiaoyong, Research on the Health Function of Kiwif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23D7/02A23L1/29A23L1/212A23L1/28A23L19/00A23L33/00
Inventor 梁明在廖哲逸颜宏恩
Owner JOJIA BIO TECH
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