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Condition optimization method for extracting tannin in grape seeds by organic solvent extraction method

A technology of organic solvents and optimization methods, applied in the fields of organic chemistry, chemical instruments and methods, esterification and saccharides, etc., can solve the problems of less research on tannin extraction

Inactive Publication Date: 2021-02-09
HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the extraction of tannins from grape seeds has great development potential in China, but there are few domestic studies on the extraction of tannins

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  • Condition optimization method for extracting tannin in grape seeds by organic solvent extraction method
  • Condition optimization method for extracting tannin in grape seeds by organic solvent extraction method
  • Condition optimization method for extracting tannin in grape seeds by organic solvent extraction method

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Embodiment Construction

[0039] Hereinafter, the present invention will be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present invention are marked. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0040] The application provides a condition optimization method for extracting tannins in grape seeds by organic solvent extraction,

[0041] 1) Study the effects of solid-liquid ratio, ethanol volume fraction, extraction time and extraction temperature on the extraction rate of tannins in grape seeds:

[0042] The influence of the volume fraction of extractant ethanol on the extraction rate of tannins:

[0043] Take 21 Erlenmeyer flasks, divide them into 7 groups, each group...

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Abstract

The invention provides a condition optimization method for extracting tannin in grape seeds by an organic solvent extraction method, and belongs to the technical field of tannin extraction. Accordingto the condition optimization method for extracting the tannin in the grape seeds through the organic solvent extraction method, the influence of material-to-liquid ratio, volume fraction of ethanol,extraction time and extraction temperature on extraction rate of the tannin from the grape seeds is investigated, and through result analysis of a single-factor experiment and a response surface optimization experiment, the optimal extraction conditions of the tannin in the grape seeds are as follows: the volume fraction of the ethanol is 51.70%, the extraction time is 3.08h, the extraction temperature is 61.87, and the extraction rate of the tannin under the conditions is as high as 6.36%.

Description

[0001] This application is a divisional application of a Chinese patent application submitted to the China Patent Office on December 21, 2015, with the application number CN201510959651.8 and the invention title "A Method for Extracting Tannin from Grape Seeds", the entire content of which is incorporated by reference incorporated in this application. technical field [0002] The invention relates to the technical field of tannin extraction, in particular to a condition optimization method for extracting tannin in grape seeds by an organic solvent extraction method. Background technique [0003] Grapes are deciduous vines of the genus Vitis in the family Vitaceae. The fruit can be made into products such as grape juice, raisins, and wine. With the increasing production of grape products, the waste generated during the processing process, such as grape skins, grape seeds, and grape waste, needs to be comprehensively utilized. [0004] Relevant studies have shown that grape w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H13/08C07H1/08
CPCC07H1/08C07H13/08C07G99/00
Inventor 李军朱凤妹
Owner HEBEI NORMAL UNIVERSITY OF SCIENCE AND TECHNOLOGY