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Method for extracting equol from chicken manure fermenting biogas slurry

A technology of equol and biogas slurry, which is applied in the field of breeding and chemical industry, can solve the problems of being unsuitable for industrial scale-up, expensive raw material solution, and cumbersome steps, and achieves the effects of low cost, mild conditions, and simple operation methods

Inactive Publication Date: 2014-11-19
SHANGHAI OCEAN UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Regarding the synthesis of equol, the steps reported in the literature are relatively cumbersome, and the use of raw material solution is relatively expensive, which is not suitable for industrial scale-up

Method used

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  • Method for extracting equol from chicken manure fermenting biogas slurry

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Embodiment 1

[0019] Chicken manure fermentation biogas slurry was concentrated under reduced pressure at 60°C at room temperature to remove 80% of the water to obtain biogas slurry concentrate, and the biogas slurry concentrate and extraction solvent were extracted at a ratio of 1:2. First, extract 6 times with petroleum ether, combine and concentrate to obtain petroleum ether extract; secondly, extract the biogas slurry concentrate 6 times with ethyl acetate, obtain ethyl acetate extract after combining and concentrating; again use n-butanol (NBA ) extract the biogas slurry concentrate 6 times, collect and concentrate to obtain n-butanol extract.

[0020] The n-butanol extraction part of biogas slurry was subjected to 300-400 mesh silica gel column chromatography, followed by chloroform / methanol solution (30:1→25:1→20:1→15:1→10:1→5:1→ 1:1) gradient elution, the eluents were combined and concentrated according to the detection results of thin-layer chromatography (TLC), and five fractions ...

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Abstract

The invention discloses a method for extracting equol from chicken manure fermenting biogas slurry. The method disclosed by the invention has the advantages of moderation in condition and high purity. According to the method, the equol is directly extracted from the chicken manure fermenting biogas slurry, so that an operation method is simple; and an extracting agent can be circularly utilized for multiple times, so that low cost is achieved.

Description

technical field [0001] The invention relates to the technical fields of breeding and chemical industry, in particular to a method for extracting equol from fermented biogas liquid of chicken manure. Background technique [0002] Select high-quality fresh chicken manure, mix the manure and pig farm sludge evenly at a ratio of 7:3 in the leeward and sunny place, and cover it with plastic cloth and pile it up for about 7 days. The fermented raw materials that have been stacked outside the pond are put into the biogas digester when the temperature is high in the afternoon on a sunny day, and then tap water is added and stirred while adding to avoid floating material. The charging amount accounts for 80% of the pond capacity. The substance (ie fermentation material) content is 4-6%. Pay attention to cover and keep warm, and seal it in time. Select the biogas residue liquid during 3 months of normal operation for separation and extraction. [0003] Equol was discovered by Marri...

Claims

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Application Information

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IPC IPC(8): C07D311/58
CPCC07D311/58
Inventor 许剑锋吴慧斌侯媛媛吕留庄
Owner SHANGHAI OCEAN UNIV