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Method for increasing dissolution rate of water extracted tea saponin

A technology of tea saponin and dissolution rate, applied in chemical instruments and methods, preparation of sugar derivatives, steroids, etc., can solve the problems of low tea saponin dissolution rate, etc., to improve product added value and high product yield , the effect of improving economic efficiency

Active Publication Date: 2018-01-09
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the situation that the water extraction and alcohol extraction method consumes a large amount of ethanol and the tea saponin dissolution rate of the tea saponin washing bag is low, the present invention aims to provide a method for improving the tea saponin leaching effect of water extraction tea seed dregs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Extraction of Camellia oleifera seed oil by ethanol water extraction

[0030] Using an alcohol-water mixed solvent with a volume percentage of 15% ethanol (adjusted to pH=10 with a 10% NaOH solution), under the reaction conditions of 70 ° C, from 500 g of Camellia oleifera seeds (provided by Jiangxi Lvyexuan Biotechnology Co., Ltd.) Extract Camellia oleifera seed oil, centrifuge at 5000rpm for 10-15min to obtain three phases, namely oil phase, water phase (about 2025mL) and residue phase (about 400g), wherein the oil phase enters the oil refining process, and the residue phase is used for subsequent recycling process.

Embodiment 2

[0031] Example 2: Recovery of tea saponin from the residue phase after extraction of Camellia oleifera seed oil

[0032] The slag phase obtained in Example 1 was dried at 60° C., pulverized through a 100-mesh sieve to obtain slag phase powder, and 1% (w / w) Na 2 CO 3 The solid is dissolved in water of the same quality as the slag phase, added to the slag phase powder, stirred evenly with a stirrer, and dried at 60°C until nearly dry. Add water with 10 times the mass of the slag phase, mix thoroughly and use a magnetic stirrer at 60°C for 30 minutes at a speed of about 400 rpm. After the reaction, centrifuge with a speed of about 5,000 rpm for 15 minutes and take the supernatant. The highest concentration of tea saponin was 9.47mg / ml determined by vanillin-concentrated sulfuric acid method, which improved the extraction effect of water-extracted tea saponin.

Embodiment 3

[0033] Example 3: Recovery of tea saponin from the residue phase after extraction of Camellia oleifera seed oil

[0034] The slag phase of Example 1 was dried at 50°C, pulverized through a 100-mesh sieve to obtain slag phase powder, and 2% (w / w) Na 2 CO 3 The solid is dissolved in water of the same quality as the slag phase, added to the slag phase powder, stirred evenly with a stirrer, and dried at 60°C until nearly dry. Add water with 10 times the mass of the slag phase, mix thoroughly and stir with a magnetic stirrer for 30 minutes at 70°C with a rotation speed of about 300 rpm. The highest concentration of tea saponin was 9.50mg / ml measured by vanillin-concentrated sulfuric acid method, which improved the extraction effect of water-extracted tea saponin.

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Abstract

The invention discloses a method for increasing a dissolution rate of water extracted tea saponin, which belongs to the technical field of further processing of agricultural and sideline product leftovers. According to a extraction method disclosed by the invention, the tea saponin in a tea seed meal residue phase is extracted in different stages, so that compared with an ethanol water extractionmethod, the cost for utilizing ethanol is decreased, and the method has the advantages of simple process, no pollution, high resource utilization rate, high product yield and the like. The tea saponinobtained by utilizing the method is high in dissolution rate which is higher than that of a water extraction effect without adding sodium carbonate. The tea saponin in the camellia seed meal residuephase is sufficiently extracted by adopting the method disclosed by the invention. The product additional value is increased, the cost is decreased, and the economic benefit is increased.

Description

technical field [0001] The invention relates to a method for improving the dissolution rate of tea saponin extracted by water, and belongs to the technical field of deep processing of leftovers of agricultural and sideline products. Background technique [0002] Tea saponin (TS), also known as tea saponin, tea saponin, is the collective name of saponin compounds in Camellia plants of the family Theaceae (Theaceae). A mixture of oleanane-type pentacyclic triterpenoid saponins composed of two organic acids with similar structures. Tea saponin contains both hydrophilic saccharides and hydrophobic ligand groups, so it is also a natural non-ionic surfactant with excellent properties, with good foaming, dispersion, emulsification, decontamination and other surface active. In addition, studies have found that tea saponin has significant biological activities such as expectorant, anti-inflammatory, antitussive, analgesic, anti-osmosis, sterilization, insecticidal hemolysis, fish p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J63/00C07H15/256C07H1/08C11D1/66
Inventor 杨瑞金赵伟张世祺张文斌华霄顾娇
Owner JIANGNAN UNIV
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