Microwave-assisted method for extracting tea saponin

A microwave-assisted, tea saponin technology, which is applied in chemical instruments and methods, preparation of sugar derivatives, steroids, etc., can solve the problems of high cost, low extraction purity, low efficiency, etc. Extract cycle, light color effect

Inactive Publication Date: 2012-09-12
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The extraction methods of tea saponin mainly include water extraction, organic solvent extraction, ultrasoni

Method used

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Example Embodiment

[0023] A) Crush the defatted camellia seed meal, pass a 40-mesh sieve, and dry the powder with a particle size of less than 40 mesh; weigh 500g of the camellia seed meal powder and dissolve it in a 50% ethanol solution. The amount of the ethanol solution is 2L;

[0024] B) The solution obtained in step A is subjected to microwave radiation treatment while stirring, the microwave power is 200-400W, the frequency is 2450MHZ, the treatment time is 4min, and the temperature is 45-55°C;

[0025] C) Suction filtration and centrifugation of the solution treated in step B to obtain the tea saponin extract, which is evaporated and concentrated under a vacuum of 0.8 MPa, and then vacuum dried to obtain crude tea saponin;

[0026] D) Weigh 50g of crude tea saponin obtained in step C, prepare 1L of crude tea saponin aqueous solution, add 10ml of 1% alum aqueous solution, stir and flocculate for 1h and then filter;

[0027] E) Add 250ml of calcium hydroxide solution to the filtrate obtained in step...

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Abstract

The invention discloses a microwave-assisted method for extracting tea saponin. The microwave-assisted method for extracting the tea saponin specifically comprises the steps of smashing and drying defatted camellia seed meal, sieving and then dissolving the defatted camellia seed meal into organic solution, performing microwave radiation processing, filtration concentration and drying to obtain crude tea saponin, preparing crude tea saponin aqueous solution, performing flocculation, precipitation, transformation and decoloration processing and finally performing drying to obtain a refine tea saponin product. Compared with an existing tea saponin extracting method, the microwave-assisted method for extracting the tea saponin has the advantages of being short in period, high in efficiency, simple in operation, small in usage mount of the organic solution, low in consumption, high in purity of produced tea saponin and the like.

Description

technical field [0001] The invention relates to a method for extracting tea saponin assisted by microwaves. Background technique [0002] Camellia oleifera is an evergreen small tree, so it is named because its seeds can extract oil. Camellia oil is a high-quality edible oil with clear taste and rich nutrition. It can also be used as lubricant and anti-rust oil in industry. But the Camellia oleifera seed meal after its oil extraction often can't be utilized. According to research, Camellia oleifera seed meal is rich in tea saponin, and there are at least 1 million tons of Camellia oleifera seed meal resources in my country every year. If tea saponin is extracted from it, huge economic value can be obtained, and at the same time full use resource. [0003] Tea saponin, also known as tea saponin, is a kind of glycoside compound extracted from tea tree seeds. It is a non-ionic natural surfactant with good performance. It has good emulsifying, dispersing, foaming, moisturizing...

Claims

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Application Information

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IPC IPC(8): C07J63/00C07H15/256C07H1/08
Inventor 何俊傅杰飞彭志勤
Owner ZHEJIANG SCI-TECH UNIV
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