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Method for processing protein foaming agent by irradiation

A protein foaming agent and a protein foaming technology are applied in the field of irradiation treatment of protein foaming agents, which can solve the problems of environmental pollution, products that cannot meet the requirements of green environmental protection, and large odor.

Inactive Publication Date: 2009-11-11
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the protein foaming agent extracted from plants (such as soybeans, corn, peanuts, etc.) has a high cost and is unbearable for most users; for the protein foaming agent extracted from animals (such as the kick hair of pigs and cattle, etc.), the peculiar smell If it is too large, it will seriously pollute the environment; and for the protein foaming agent extracted from activated sludge that has emerged in recent years, although it avoids the high cost of plant protein foaming agents, and has less odor than animal protein, if it is used to prepare There are still many areas that need to be improved for green and environmentally friendly foam fire extinguishing agents and foam concrete. Among them, the problems that need to be solved urgently are: 1. Anticorrosion and deodorization; 2. How to extend the shelf life
[0003] At present, many scholars have devoted themselves to solving the above problems, such as adding reducing agents, adsorbents and composite fibers to the protein solution for deodorization and anticorrosion, see Silkworm chrysalis protein powder deodorization process research, Jin Xiaoming, Qu Hongguang, etc., Food Science , 2005, 26, 9; in addition, the protein liquid raw material is hydrolyzed with hydrochloric acid, and alkali is added to the obtained hydrolyzate for neutralization, and further alkali is added to adjust the pH above 8.0, and then kept at high temperature for a certain period of time and treated with alkali method, but this method has several disadvantages, which are not very satisfactory. Firstly, its operation is more troublesome, and secondly, the cost is higher. Furthermore, this method introduces chemical reagents and brings in the taste of chemicals, and the obtained product cannot satisfy Green standard

Method used

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  • Method for processing protein foaming agent by irradiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] ①Extraction of protein solution:

[0017] The protein is extracted from the sludge by the usual method, and then concentrated to a certain concentration (about 30%).

[0018] ②Irradiation treatment:

[0019] Accurately weigh 100g of 30% protein solution with an analytical balance, put it in a plastic bottle and seal it, and then irradiate it with an irradiation dose of 1KGy at room temperature. 60 Co γ-ray irradiation for 30min.

[0020] ③Assessment of sense of smell:

[0021] The olfactory smell of the protein solution was determined by a precision electronic nose. Sampling is directly taken from the sample bottle, and the headspace sampling method is directly analyzed by the electronic nose under natural conditions at room temperature.

[0022] ④ Determination of foaming ratio and foam stability:

[0023] Foaming ratio measurement method: Dilute the obtained protein solution to a protein dilution with a concentration of 3%, then take 10mL of the protein dilution,...

Embodiment 2

[0034] The extraction of the protein solution is the same as in Example 1, the concentrated protein solution is placed in a plastic bottle and sealed, and then at room temperature the irradiation dose is 5KGy 60 Irradiate under Co gamma ray for 60min; carry out the mensuration of sense of smell, foaming multiple and foam stability with the operating method of embodiment 1. Finally spray dry and seal the package.

Embodiment 3

[0036] The extraction of the protein solution is the same as in Example 1, the concentrated protein solution is placed in a plastic bottle and sealed, and then at room temperature the irradiation dose is 10KGy 60 Irradiate 120min under Co gamma ray; Carry out the mensuration of sense of smell, foaming multiple and foam stability with the operation method of embodiment 1. Finally spray dry and seal the package.

[0037] The protein foaming agent prepared by the above method can be used to prepare protein foam fire extinguishing agent and foam concrete by conventional methods. The prepared protein foam fire extinguishing agent does not have the stench of animal protein, and the cost is lower than that of vegetable protein. All fire extinguishing properties meet the fire protection indicators, and it is biodegradable. It is a safe and green environmental protection product; and the prepared foam concrete has fine and uniform porosity. , compressive strength (5-7.5MPa), good ther...

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Abstract

The invention relates to a method for pre-processing protein foaming liquid by irradiation, comprising: 1) centrifugally separating protein liquid extracted from residual activated sludge so as to remove impurity therein, storing in a sealing device bottle; 2) evenly irradiating the sealing device bottle filled with protein foaming liquid by ray (60) Co, regulating the amount of irradiation agent in the range of 1KGy to 10KGy, and irradiating for 30min to 2h at room temperature; 3) spraying and drying the protein foaming liquid that is irradiated within 2h, obtaining the protein foaming agent. The irradiation technology is applied to the aspect of deodorizing protein, and can deodorize by sterilizing, and meanwhile, the effect of deodorizing is obvious by modifying volatile smelly material. The protein foaming agent prepared by the method is long in shelf life as long as 5 years; and the protein foaming agent can be biodegraded without environmental hidden trouble, thereby being capable of being used as high-quality foaming raw materials for preparing green and environment-friendly protein foam fire extinguishing agent and foam concrete.

Description

technical field [0001] The invention relates to a method for pretreating protein foaming liquid by irradiation, more specifically, a method for using irradiation technology to process protein foaming liquid extracted from activated sludge to finally prepare a green and environment-friendly protein foaming agent. Background technique [0002] Anti-corrosion, deodorization and prolonging the shelf life are the key steps in the process of preparing the protein foaming agent extracted from activated sludge for green foam fire extinguishing agent and foam concrete. The current sources of protein foaming agents mainly include plants, animals and activated sludge proposed in recent years. Among them, the protein foaming agent extracted from plants (such as soybeans, corn, peanuts, etc.) has a high cost and is unbearable for most users; for the protein foaming agent extracted from animals (such as the kick hair of pigs and cattle, etc.), the peculiar smell If it is too large, it wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/30A62D1/04C04B24/14C09K23/30
Inventor 张卫江相玉琳
Owner TIANJIN UNIV
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