Extraction method of longan seed polyphenol

An extraction method and longan core technology are applied in the field of extracting longan core polyphenols from waste longan core in the longan processing industry, which can solve the problems of equipment investment, high production cost, staying in scale, and many impurity components, and achieves low production cost, Reduced potential toxicity and low residue pollution
CN102961486BInactive Publication Date: 2014-06-11XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2014-06-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an extraction method of longan seed polyphenol, relating to a processing method of a longan. The extraction method of the longan seed polyphenol can enhance the economic benefit of a longan industry and increase the income of fruit growers. The extraction method of the longan seed polyphenol comprises the following steps of: drying cleaned longan seeds; smashing raw material longan seeds to obtain longan seed powder; adding a sodium phosphate buffer solution to the longan seed powder to obtain a leach solution; pouring out the leach solution, filtering, removing leaching residues, and recovering immersion liquid; concentrating obtained filter liquor to obtain a concentrated solution; adding hydrochloric acid to the concentrated solution, stirring, and then standing for precipitation to obtain a precipitation solution; centrifugalizing the precipitation solution, removing a supernatant, washing precipitates by using the hydrochloric acid, and then drying to obtain fine longan seed polyphenol powder.
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Description

technical field

[0001] The invention relates to a longan processing method, in particular to a process for extracting longan kernel polyphenols from waste longan kernels in the longan processing industry. Background technique

[0002] my country's longan production in 2010 was 1.312 million tons (the distribution of major fruit production in my country in 2010 by province (region, city). China Fruit Industry Information, 2012, (12): 56), and compared with the high price in the 1990s ( Compared with the highest price of 12-14 yuan / kg), it has remained in a sluggish state (the average purchase price is 0.8-2 yuan / kg). The huge contrast between these is unacceptable to many fruit farmers. At a loss, the enthusiasm of fruit farmers to plant longan has been severely dampened (Chen Enhai. Typical South Subtropical Fruit Production in Zhangzhou Tropical Area in 2009 and Forecast of Production Situation in 2010. China Tropical Agriculture, 2010, (01): 39-40). Therefore, how to improv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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