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Method for extracting chitosan by employing flies

A technology for chitosan and flies, which is applied in the field of chitosan extraction, can solve the problems of difficulty in large-scale production, industrialized production, impact on product development, large gap between supply and demand, etc., and achieves high economic value, increased production scale, and increased output. Effect

Inactive Publication Date: 2008-09-03
THE AFFILIATED HIGH SCHOOL OF SHANGHAI UNIV
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Problems solved by technology

[0002] At present, chitosan has an extremely wide range of applications in production and life, and can be used in agriculture, daily chemicals, biology, medicine, food, cosmetics, environmental protection, textiles, printing and dyeing, papermaking and other industries. According to the international market situation, in the next few years, only chitosan products will have a market of hundreds of millions of dollars. However, because the main raw materials for chitosan production are the shells of aquatic animals such as shrimps and crabs, it is difficult to collect them and form large-scale production. , industrialized production, especially in southern my country so far there is no production base for exporting this product, which also affects the development of products in this emerging market in my country, and there is a large gap between supply and demand

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  • Method for extracting chitosan by employing flies

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Raw material acquisition, acid-base treatment of fly pupal shells. After decalcification treatment, deproteinization treatment, and deacetylation treatment, the obtained substance is filtered, washed to neutrality, collected and dried, which is the finished product of chitosan.

[0032] Embodiments of the invention:

[0033] (1) Methods and steps

[0034] 1. Acquisition of raw materials

[0035] (1) Hatching of eggs:

[0036] The fly eggs were hatched in a light incubator, the temperature was controlled at 25°C, and the relative humidity was 70%-80%. After 1 to 2 days, the eggs basically hatch into larvae.

[0037] (2) Growth and development of fly maggots:

[0038] The larvae of flies are commonly known as fly maggots, and they can mature and pupate after 4 to 6 days in a dark place indoors where the temperature is 25°C and the ambient hum...

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Abstract

The invention relates to a method for extracting chitosan using fly, characterized in that the fly puparium is treated by acid alkaline process to obtain raw material. The raw material is subjected to decalcifying, deproteinizing, deacetylating, and then filtering, cleaning to be neutral to obtain the chitosan end product. The method can produce chitosan in enormous quantities using the high breeding property of fly, therefore the production rate of chitosan is increased. A product center combining raw material production and chitosan production together can avoid the inconvenience of raw material collection, therefore the production scale is greatly increased and the cost is reduced. During feeding the fly, the fly can be used for extract of protein feedstuff and antibiotic fly protein.

Description

technical field [0001] The invention relates to a method for extracting chitosan, in particular to a method for extracting chitosan by using flies. Background technique [0002] At present, chitosan has an extremely wide range of applications in production and life, and can be used in agriculture, daily chemicals, biology, medicine, food, cosmetics, environmental protection, textiles, printing and dyeing, papermaking and other industries. According to the international market situation, in the next few years, only chitosan products will have a market of hundreds of millions of dollars. However, because the main raw materials for chitosan production are the shells of aquatic animals such as shrimps and crabs, it is difficult to collect them and form large-scale production. , Industrialized production, especially in the south of my country, there is no production base for exporting this product so far, which also affects the development of products in this emerging market in my ...

Claims

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Application Information

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IPC IPC(8): C08B37/08
Inventor 王伟庆李思钒
Owner THE AFFILIATED HIGH SCHOOL OF SHANGHAI UNIV
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