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Technical method for simultaneously preparing premna microphylla pectin and premna microphylla sodium copper chlorophyll from premna microphylla

A copper chlorophyllin sodium salt and process technology, which is applied in the field of extraction and preparation of biological products, can solve the problems of inability to realize pectin and chlorophyll processed products, high moisture content of tofu wood, and decreased pectin yield, and achieve gel effect Good, the investment in production equipment can be large or small, and the effect of energy consumption reduction

Active Publication Date: 2015-03-04
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although the extraction method of tofu chai pectin has been reported, it is extracted after drying. Due to the high moisture content of tofu chai, the extraction after drying not only consumes a lot of energy, but also the chlorophyll is destroyed during the drying process, which cannot be achieved. At the same time, pectin and chlorophyll processed products are obtained. In addition, the yield of pectin after drying is also greatly reduced.

Method used

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  • Technical method for simultaneously preparing premna microphylla pectin and premna microphylla sodium copper chlorophyll from premna microphylla

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The specific operation steps for simultaneously preparing tofu chai pectin and tofu chai copper chlorophyllin sodium salt from doufuchai are as follows:

[0023] 1、 Tofu Chai Beating

[0024] Mix 1 kg of fresh tofu chai with 200 ml of beating agent (the mixing ratio is 1:0.2 by weight to volume), then beat with an electric beater, pass through a 20-mesh sieve, and remove the fibrous tissue that is difficult to sieve to obtain tofu chai pulp. The beating agent is prepared from water, methanol and acetone in a volume ratio of 0.1:0.1:0.1;

[0025] 2、 Preparation of chlorophyll extract

[0026] Centrifuge the bean curd pulp for 10 minutes at a speed of 10,000 rpm to obtain 500 milliliters of centrifuged supernatant and 400 grams of centrifuged sediment. Add 40 milliliters of chlorophyll extractant to this precipitate, the weight-to-volume ratio of material to liquid is 1:0.1, filter after mixing for 1 minute, obtain 40 milliliters of filtrate, combine filtrate and cent...

Embodiment 2

[0038] The specific operation steps for simultaneously preparing tofu chai pectin and tofu chai copper chlorophyllin sodium salt from doufuchai are as follows:

[0039] 1. Tofu chai beating

[0040] Mix 1 kg of fresh tofu chai with 1000 ml of beating agent (weight to volume ratio 1.0:1.0), then beat with an electric beater, and pass through a 100-mesh sieve to remove fibrous tissue that is difficult to sift through. The beating agent is composed of water, ethanol and acetone in a volume ratio of 1:2:1;

[0041] 2. Preparation of chlorophyll extract

[0042] The bean curd pulp was filtered under reduced pressure to obtain 1500 ml of filtrate and 300 g of filter residue. Add 180 ml of chlorophyll extractant (the weight-to-volume ratio of material to liquid is 1:0.6) to the filter residue, mix for 30 minutes, and then filter to obtain 180 ml of filtrate. Combine the two filtrates to obtain a total of 1680 ml of chlorophyll extract; Residue 300 grams. The chlorophyll extractan...

Embodiment 3

[0054] The specific operation steps for simultaneously preparing tofu chai pectin and tofu chai copper chlorophyllin sodium salt from doufuchai are as follows:

[0055] 1. Tofu chai beating

[0056] Mix 1 kg of fresh tofu chai with 500 ml of beating agent (weight to volume ratio: 1:0.5), beat with an electric beater, and pass through a 60-mesh sieve to obtain tofu chai pulp. The beating agent is made by mixing water, ethanol (or methanol) and acetone at a volume ratio of 0.5:1.0:0.5;

[0057] 2. Chlorophyll extraction

[0058] The bean curd pulp was filtered under reduced pressure to obtain 900 ml of filtrate and 400 g of filter residue. Add 120 ml of chlorophyll extractant (the weight-to-volume ratio of solid to liquid is 1:0.3) to the filter residue, mix for 15 minutes and then filter to obtain 120 ml of filtrate. Combine the two filtrates to obtain a total of 1020 ml of chlorophyll extract and filter residue 400 grams. The chlorophyll extractant is prepared from ethanol...

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Abstract

The invention discloses a technical method for simultaneously preparing premna microphylla pectin and premna microphylla sodium copper chlorophyll from premna microphylla. The technical method comprises the following technical steps: (1) mixing and pulping fresh premna microphylla leaves and a pulping agent; (2) mixing centrifugal precipitate or filtration residue of the premna microphylla pulp with an extraction agent, centrifuging or filtering, and combining supernatant liquid or filtrate to obtain chlorophyll extraction liquid and simultaneously obtain centrifugal precipitate or filtration residue; (3) washing and drying the centrifugal precipitate or the filtration residue to obtain crude pectin of the premna microphylla; and (4) carrying out saponification, extraction and copper ion replacement on the chlorophyll extraction liquid to prepare sodium copper chlorophyll. By virtue of the method, the yield of the crude pectin can be increased by over 30%; more importantly, the energy consumption is reduced by over 90%; meanwhile, the products of chlorophyll and sodium copper chlorophyll can be obtained; the utilization level of the premna microphylla can be greatly improved.

Description

Technical field [0001] The present invention is the field of extraction and preparation of biological products, involving the processing process of tofu firewood and tofu chlorophyll chlorophyll and chlorophyll copper sodium salt. Background technique [0002] Points are polysaccharides, and they exist in polysaccharides in the fruits, roots, leaves and other tissues of higher plants, and have the effects of softening glue.Using pectin to generate a good jelly under calcium ion or high concentration of sugar, it can be used as a gelgent, thickener, emulsifier, stabilizer, dehydrated agent in food, chemical industry, Medicine and other industries.At present, after the reform and opening up, my country's food industry is booming and has a large demand for pectin. The annual demand is about 1,500 tons. Most of them should be imported from abroad. The supply of domestic products is in short supply. It is urgent to develop new high -yield varieties. [0003] Chlorophyll copper sodium ...

Claims

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Application Information

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IPC IPC(8): C08B37/06C07D487/22
Inventor 胡丰林陆瑞利
Owner ANHUI AGRICULTURAL UNIVERSITY
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