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Method for preparnig functional protein powder by usnig waste water produced by processing fish powder

A technology for processing wastewater and protein powder, which is applied in the field of protein powder, can solve the problems of complex reaction process and high cost, and achieve the effects of easy process control, low cost and shortened production cycle

Inactive Publication Date: 2004-06-09
OCEAN UNIV OF CHINA
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Problems solved by technology

The disadvantage of these patents is that the reaction process is complicated or the cost is high

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Embodiment Construction

[0006] Add hydrochloric acid (6%, weight percent concentration, the same below) to adjust pH to 6.3 in 1 ton of fishmeal processing waste water, add 30 kilograms of chitosan colloidal solutions (wherein 1% chitosan, 1% hydrochloric acid) carry out flocculation. The viscosity of the colloidal solution is 300 mPas, and the flocculation time is 8 hours. After the flocculation and precipitation are complete, separate with a plate filter to obtain 95 kg of paste, then add 95 kg of 3% hydrochloric acid and heat to 50° C. for 3 hours. Cracked in a microwave cracking furnace for 4 hours, concentrated and dried to obtain 45 kg of protein powder solid powder. Component analysis shows that it contains 53% of total amino acids and 3% of low molecular weight chitosan.

[0007] The weight percent concentration of neutralizing acid described in the present embodiment is 1-10%; The pH after neutralization is 6-7; Described flocculation adopts chitosan colloidal solution, and the latter conta...

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Abstract

The present invention relates to a method for preparing functional protein powder by utilizing waste water produced by processing fish powder, said method includes the following steps: neutralizing said waste water, making flocculation, diluting obtained flocculate, microwave degrading and using magnetic membrane to make filtration so as to obtain the invented protein powder. The weight percentage concentration of the acid for making neutralization is 1-10 % , and pH value after neutralization is 6-7. The described flocculation adopts chitosan colloid solution, and its use level is that the volume ratio of it and fish power waste water protein is 1:30-1:50, and the flocculation time is 6-12 hr, and the described microwave degrading time is 2-5hr.

Description

technical field [0001] The invention relates to protein powder used as bait or fertilizer, in particular to a method for preparing functional protein powder from fishmeal processing wastewater. Background technique [0002] About fishmeal sewage and fishmeal wastewater treatment method, utilize nitrifying bacteria or photosynthetic bacteria to carry out sewage treatment in the patent of " fishmeal sewage treatment method " (application number is 98110156); Utilize enzymatic hydrolysis method in the patent to carry out sewage treatment, adopt the separation method of heating and evaporating etc. The disadvantage of these patents is that the reaction process is complicated or the cost is high. Contents of the invention [0003] The purpose of this invention is to provide a kind of method that utilizes fishmeal processing waste water to prepare functional protein powder, and it can overcome the above-mentioned shortcoming of prior art. [0004] A method for preparing functi...

Claims

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Application Information

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IPC IPC(8): A23J1/16A23K10/22A23K20/147C05B7/00C07K2/00
Inventor 姜国良刘云牛世奎杨栋
Owner OCEAN UNIV OF CHINA
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