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Method for purifying tea saponin in camellia oleifera seed cake

A technology of camellia oleifera seed cake and tea saponin, which is applied in the field of deep processing of agricultural and forestry by-products, can solve problems such as the difficulty in concentrating tea saponin liquid, and achieve the effects of facilitating industrial scale production, scientific and reasonable process design, and reducing production energy consumption

Inactive Publication Date: 2011-11-30
JINGGANGSHAN TEA OIL
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  • Claims
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Problems solved by technology

The flocculation-precipitation release method is used to efficiently concentrate the extract, which can overcome the difficulty of concentrating the tea saponin solution, and effectively remove some impurities such as proteins, so as to achieve the purpose of reducing production energy consumption, improving product purity, and improving economic benefits.

Method used

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  • Method for purifying tea saponin in camellia oleifera seed cake

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Embodiment Construction

[0025] It can be seen from the accompanying drawings that the camellia seed cake after pre-pressing and leaching oil is crushed with a pulverizer, and passed through a 40-80 mesh sieve; the camellia seed cake powder is put into a reactor with stirring and a condenser , add petroleum ether to the reactor, stir and reflux in a hot water bath at 60°C for 2 hours, filter after the reaction, and remove the solvent from the filtrate by distillation under reduced pressure to obtain the leached camellia seed crude oil. Dry the filter residue and put it into the above-mentioned reactor, add ethanol with a concentration of 85% to the reactor for leaching, heat and reflux in a hot water bath at 70°C for 3 hours, separate the residue while it is hot with a centrifuge, and re-extract the residue The extraction and separation are repeated twice, and the residue after three extractions can be used as animal feed protein. The supernatant obtained by centrifuging three times is combined, and th...

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Abstract

The invention discloses a method for purifying tea saponin from camellia oleifera seed cake, comprising the following process steps: degreasing the pulverized and sieved camellia seed cake with petroleum ether; degreasing the degreased camellia seed cake powder with 85 %~95% ethanol solution is extracted three times to obtain crude tea saponin slurry; the crude tea saponin is purified by flocculation-precipitation release method: in the first step, alum solution is used as a flocculant, and some impurities are removed by filtration; In the first step, the lime emulsion is used as a precipitating agent, so that tea saponin is converted into calcium tea saponin, which is precipitated and separated from water-soluble impurities; in the third step, acetic acid solution is used as a saponin releasing agent, so that calcium tea saponin is converted into tea saponin Dissolved in water, filtered to further remove impurities; the purified tea saponin solution was decolorized, concentrated and spray-dried to obtain refined tea saponin. The process of the invention is simple, the industrial scale production is convenient, and the obtained product has high purity.

Description

technical field [0001] The invention relates to the field of deep processing of agricultural and forest by-products, in particular to a method for purifying tea saponin in camellia oleifera seed cake. Background technique [0002] my country is the country with the largest production of camellia oleifera, with about 3.67 million hectares of camellia oleifera resources and an annual output of 645,000 tons of camellia oleifera seeds. Tea saponin exists in the residue of camellia oleifera cake after oil extraction from camellia oleifera seeds. About 400,000 tons of camellia seed cakes are thrown away in my country every year, which is equivalent to throwing away at least 130,000 tons of tea saponin every year, causing huge waste. Tea saponin has excellent surface activity and special physiological activity, and is widely used in daily chemical, pharmaceutical, food, building materials and pesticide industries. [0003] The methods for industrialized extraction of tea saponin m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J63/00C07H15/256C07H1/08A23K1/14A23K10/37
CPCY02P60/87
Inventor 杨建斌张继昌黄斌
Owner JINGGANGSHAN TEA OIL
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