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Extracting method of passion flower fruit pigment

An extraction method, the technology of passionflower, applied in the direction of chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of environmental burden, waste of resources, etc., and achieve the effect of separation, avoiding damage, and ensuring purity

Inactive Publication Date: 2012-10-31
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passiflora peel accounts for 45% to 55% of the whole fruit weight, and it becomes a by-product in a large amount of passion fruit juice processing, and most of these processing by-products are discarded as waste, which not only causes a great waste of resources, but also brings environmental burden

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Material selection: take passion fruit peel as raw material;

[0030] (2) Cleaning: wash with running water after removing impurities;

[0031] (3) Drain: Spread the cleaned passion fruit peels on a bamboo sieve to drain;

[0032] (4) Ethanol solvent extraction: 86% ethanol (containing 0.054% hydrochloric acid, 0.1% citric acid) was used to extract the pigment, the extraction temperature was 31 °C, the time was 120 min, the ratio of solid to liquid was 1:36, after the extraction was completed, it was concentrated and removed in vacuo at 40 °C ethanol;

[0033] (5) Extraction with anhydrous ether: add anhydrous ether to the concentrated pigment solution at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ether, repeat several times until the ether layer is colorless;

[0034] (6) Ethyl acetate extraction: add ethyl acetate at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ethyl acet...

Embodiment 2

[0042] (1) Material selection: take passion fruit peel as raw material;

[0043] (2) Cleaning: wash with running water after removing impurities;

[0044] (3) Drain: Spread the cleaned passion fruit peels on a bamboo sieve to drain;

[0045] (4) Ethanol solvent extraction: use 86% ethanol (containing 0.054% hydrochloric acid, 0.1% citric acid) to extract the pigment, the extraction temperature is normal temperature, the time is 140 min, the ratio of solid to liquid is 1:30, after the extraction is completed, the ethanol is removed by vacuum concentration at 40°C ;

[0046] (5) Extraction with anhydrous ether: add anhydrous ether to the concentrated pigment solution at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ether, repeat several times until the ether layer is colorless;

[0047] (6) Ethyl acetate extraction: add ethyl acetate at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ethyl ac...

Embodiment 3

[0055] (1) Material selection: take passion fruit peel as raw material;

[0056] (2) Cleaning: wash with running water after removing impurities;

[0057] (3) Drain: Spread the cleaned passion fruit peels on a bamboo sieve to drain;

[0058] (4) Ethanol solvent extraction: use 86% ethanol (containing 0.054% hydrochloric acid, 0.1% citric acid) to extract the pigment, the extraction temperature is room temperature, the time is 90 min, the ratio of solid to liquid is 1:40, after the extraction is completed, the ethanol is removed by vacuum concentration at 40°C ;

[0059] (5) Extraction with anhydrous ether: add anhydrous ether to the concentrated pigment solution at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ether, repeat several times until the ether layer is colorless;

[0060] (6) Ethyl acetate extraction: add ethyl acetate at a ratio of 1:1 (v / v) for extraction, take the water layer, concentrate in vacuo to remove ethyl aceta...

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PUM

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Abstract

The invention discloses an extracting method of passion flower fruit pigment. The extracting method comprises the steps of selecting materials, cleaning, draining, extracting ethanol, extracting absolute ether, extracting ethyl acetate, absorbing and purifying macroporous resin, absorbing and purifying polyamide chromatographic column, absorbing and purifying sephadex columns, separating and purifying preparative liquid chromatography, cooling, drying and packaging. According to the method, the operation is simple, a used solvent and an absorbent can be used repeatedly, the energy loss is low, the real-time control is easy, and the continuous automatic cleaning production can be realized.

Description

technical field [0001] The invention belongs to the technical field of natural product research and development, and in particular relates to a method for extracting passion fruit pigment. Background technique [0002] Passiflora is an important tropical fruit in my country, and its output is large. At present, Passiflora is mainly used to make fruit juice, and a small part is eaten as fresh fruit. Passiflora peel accounts for 45% to 55% of the whole fruit weight, and it becomes a by-product in a large amount of passion fruit juice processing, and most of these processing by-products are discarded as waste, which not only causes a great waste of resources, but also brings The environment creates a burden. The peel of passionflower purple fruit is rich in natural pigments, and it is expected to obtain products with high extraction rate, high purity and high color price, so as to meet the demand for natural pigments in domestic and foreign markets. Contents of the invention...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 曾绍校彭彬郑宝东杜艳芳陈洁
Owner FUJIAN AGRI & FORESTRY UNIV
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