Process for producing animal grease for feed

Abstract

The invention provides a method for producing animal grease for feed. The method comprises the following steps: (1) selecting materials, and pre-treating; (2) heating a pot in vacuum, adding water, heating, and vacuumizing; (3) adding neutral protease; (4) insulating thermally, stirring, keeping on heating, and performing enzyme deactivation; (5) separating solids from liquid; (6) separating oil from water; (7) feeding grease into the pot for heating, cooling, inspecting and storing; (8) treating wastewater; and (9) performing spray-drying on oil residues to obtain protein powder, packaging and warehousing for later use. According to the process, water and neutral protease are added for low-temperature oil refining in the production process, so that high-temperature destruction and oxidation generated by oxygen can be reduced, the animal grease has lower acid value and peroxide value, has richer fragrance, good appearance, white color, environmental friendliness, energy conservation, high efficiency, high grease quality, small consumption and high yield, and is a high-quality feed raw material since the grease quality is maintained; and the separated oil residues can be used for preparing protein powder by means of spray drying, and can be applied to feed raw material, fish meal replacement and the like, so that pollution for the environment can be reduced, waste is turned to be useful, and cost can be saved.

Description

technical field

[0001] The invention relates to the technical field of feed, in particular to a production process of animal fat for feed. Background technique

[0002] Oil is a very important feed raw material, which can increase the energy of feed, promote the absorption of fat-soluble vitamins and pigments, increase the growth rate and productivity of animals, and reduce the occurrence of diseases. Oils and fats generally include animal fats and vegetable oils. For a long time, the oil refining process adopted by my country's animal oil production enterprises is generally the traditional dry refining or wet refining. During the processing and storage of raw oil and fat, due to the air, Affected by factors such as temperature, light, moisture, metal ions and the fatty acid composition of the oil itself, complex chemical changes will occur, resulting in oxidative rancidity of the oil, and the problem of high acid value and peroxide value of the oil. The acid value of the oil...

Examples

Embodiment

[0018] A method for producing animal fat for feed, comprising the following process steps:

[0019] (1) Material selection and pretreatment: Select 5000Kg of pork raw fat, wash the impurities in it, and grind it into 1-2cm minced meat by a meat cutter;

[0020] (2) Put the minced meat pretreated in step (1) into a vacuum heating pot, add 5000Kg of water, heat up to 58°C, and vacuumize, the vacuum degree is -0.03mpa;

[0021] (3) Add 1.5Kg neutral protease;

[0022] (4) Keep the above temperature for 120 minutes with stirring, continue to heat up to 100°C, keep it for 60 minutes, and carry out enzyme-killing treatment;

[0023] (5) Send it to a centrifuge for solid and liquid separation;

[0024] (6) The liquid part separated in step (5) is subjected to oil-water separation;

[0025] (7) Send the grease separated in step (6) into the heater, heat it to 120°C, then cool the grease to room temperature through the heat exchanger, and store it in the oil storage tank after inspe...

technical field

[0001] The invention relates to the technical field of feed, in particular to a production process of animal fat for feed. Background technique

[0002] Oil is a very important feed raw material, which can increase the energy of feed, promote the absorption of fat-soluble vitamins and pigments, increase the growth rate and productivity of animals, and reduce the occurrence of diseases. Oils and fats generally include animal fats and vegetable oils. For a long time, the oil refining process adopted by my country's animal oil production enterprises is generally the traditional dry refining or wet refining. During the processing and storage of raw oil and fat, due to the air, Affected by factors such as temperature, light, moisture, metal ions and the fatty acid composition of the oil itself, complex chemical changes will occur, resulting in oxidative rancidity of the oil, and the problem of high acid value and peroxide value of the oil. The acid value of the oil...

Examples

Embodiment

[0018] A method for producing animal fat for feed, comprising the following process steps:

[0019] (1) Material selection and pretreatment: Select 5000Kg of pork raw fat, wash the impurities in it, and grind it into 1-2cm minced meat by a meat cutter;

[0020] (2) Put the minced meat pretreated in step (1) into a vacuum heating pot, add 5000Kg of water, heat up to 58°C, and vacuumize, the vacuum degree is -0.03mpa;

[0021] (3) Add 1.5Kg neutral protease;

[0022] (4) Keep the above temperature for 120 minutes with stirring, continue to heat up to 100°C, keep it for 60 minutes, and carry out enzyme-killing treatment;

[0023] (5) Send it to a centrifuge for solid and liquid separation;

[0024] (6) The liquid part separated in step (5) is subjected to oil-water separation;

[0025] (7) Send the grease separated in step (6) into the heater, heat it to 120°C, then cool the grease to room temperature through the heat exchanger, and store it in the oil storage tank after inspe...