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New method for preparing lung protein powder from animal lung

A technology of protein powder and a new method, which is applied in animal protein processing, protein food processing, protein food ingredients, etc., can solve the problems of waste of biological resources, waste of waste, environmental pollution, etc., and achieve short production cycle, no waste, and extensive The effect of applying the foreground

Inactive Publication Date: 2019-01-01
陈石良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to various reasons, except that a small amount of fresh pig lungs are directly eaten and a small part of fresh pig, cattle, and sheep lungs are directly used as aquaculture feed, most of them are discarded and waste, resulting in a huge waste of biological resources. cause serious environmental pollution

Method used

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  • New method for preparing lung protein powder from animal lung

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Chopping and mixing: take 100 kg of fresh pig lungs, wash and decontaminate them, and grind them into minced meat with a chopping machine to obtain minced lungs;

[0019] (2) Cooking: add 300 kg of water to the lung minced material, stir and mix well, adjust the pH value to 8.5 with NaOH solution, raise the temperature to 98°C, keep warm and cook for 1.5 hours, filter off the oil floating on the upper layer, and get cooking liquid;

[0020] (3) Homogenization: Grind and homogenize the cooking liquid through a homogenizer for 10 minutes while it is hot to obtain lung homogenate;

[0021] (4) Enzymolysis: adjust the pH value of the lung homogenate to 8.2, add 5.0 grams of alkaline protease per kilogram of fresh lung, heat to 53°C, and keep warm for 2 hours to obtain the enzymolysis solution;

[0022] (5) Spray drying: spray-dry the obtained enzymatic hydrolysis solution to obtain 17.3Kg of lung protein powder.

Embodiment 2

[0024] (1) Cutting and mixing: take 100 kg of frozen pig lungs, wash and decontaminate them after thawing, and grind them into minced meat with a chopping machine to obtain minced lungs;

[0025] (2) Cooking: Add 400 kg of water to the lung minced material, stir and mix well, adjust the pH value to 9.0 with NaOH solution, raise the temperature to 95°C, keep warm and cook for 2 hours, filter off the oil floating on the upper layer, and get cooking liquid;

[0026] (3) Homogenization: Grind and homogenize the cooking liquid through a homogenizer for 5 minutes while it is hot to obtain a lung homogenate;

[0027] (4) Enzymolysis: Adjust the pH value of the lung homogenate to 8.8, add 3.5 grams of alkaline protease per kilogram of fresh lung, heat to 52°C, and keep warm for 1.5 hours to obtain the enzymolysis solution;

[0028] (5) Spray drying: spray-dry the obtained enzymatic hydrolysis solution to obtain 15.6 kg of lung protein powder.

Embodiment 3

[0030] (1) Chop and mix: take 100 kg of fresh sheep lungs, wash and decontaminate, and grind them into minced meat with a chopping machine to obtain minced lung;

[0031] (2) Cooking: Add 350 kg of water to the lung minced material, stir and mix well, adjust the pH value to 8.8 with NaOH solution, raise the temperature to 98°C, keep warm and cook for 1 hour, filter off the oil floating on the upper layer, and get cooking liquid;

[0032] (3) Homogenization: Grind and homogenize the cooking liquid through a homogenizer for 6 minutes while it is hot to obtain lung homogenate;

[0033] (4) Enzymolysis: Adjust the pH value of the lung homogenate to 8.6, add 5 grams of alkaline protease per kilogram of fresh lung, heat to 55°C, and keep it warm for 1 hour to obtain the enzymolysis solution;

[0034] (5) Spray drying: spray-dry the obtained enzymatic hydrolysis solution to obtain 20.2Kg of lung protein powder.

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Abstract

The invention relates to a new method for preparing lung protein powder from animal lung. The method mainly comprises the steps of chopping, cooking, homogenizing, enzymolysis, spray drying to obtainthe lung protein powder. With the animal lung as a raw material and by adopting the biological enzymolysis method combined with the cooking hydrolysis and spray drying technology, the method providedby the invention has the advantages of simple technological process, short production cycle, low cost and no waste or pollution and is suitable for large-scale industrial production. The animal lung protein powder prepared by the invention has the advantages of high protein content and high nutritional value and contains polypeptide, small peptide and amino acid substances, wherein the peptide substances with molecular weight of less than 5,000Da account for 75% or more of total protein, and the small molecule peptides with molecular weight of less than 1,000Da account for 20% or more.

Description

technical field [0001] The invention relates to the technical field of animal by-product processing, in particular to a new method for preparing lung protein powder from animal lungs. Background technique [0002] my country is a large animal husbandry production country. The total production of pigs, mutton sheep and beef cattle ranks among the top in the world. The total amount of various animal lungs produced by slaughterhouses (fields) reaches more than 1 million tons every year, and animal lung resources are very rich. Animal lungs contain more than 70% crude protein in terms of dry matter, about 15% fat and about 4% carbohydrates, and are a kind of cheap animal protein raw materials. However, due to various reasons, except that a small amount of fresh pig lungs are directly eaten and a small part of fresh pig, cattle, and sheep lungs are directly used as aquaculture feed, most of them are discarded and waste, resulting in a huge waste of biological resources. cause se...

Claims

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Application Information

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IPC IPC(8): A23J3/04A23J3/34
CPCA23J3/04A23J3/341
Inventor 陈石良
Owner 陈石良
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