Method for preparing non-denaturation hogskin insoluble collagen powder

Abstract

The invention discloses a method for producing insoluble collagen power from non-denatured pigskin. For a long time, except that part of the pigskin is used for producing leather or food, most part of the pigskin is cooked to produce glue or eaten after being simply processed or even discarded. The method for producing the insoluble collagen power from the non-denatured pigskin comprises the steps of pretreatment of fresh pigskin and production of the collagen power; in the pretreatment of fresh pigskin, the fresh pigskin is degreased by machines, soaked in alkaline, degreased by ultrasonic sound, crushed, dissolved by acid and extracted by enzyme to obtain soluble collagens; after the extraction of the soluble collagens, insoluble substances are soaked in a surface active agent, washed, embrittled by freezing, dried at low temperature and ground by a carrier to obtain the insoluble collagen power after the carrier is recovered. The method is used for preparing the insoluble collagen power.

Description

Technical field:

[0001] The invention relates to a method for manufacturing non-denatured pigskin insoluble collagen powder. Background technique:

[0002] For a long time, pigskin has been used as the leftovers of slaughterhouses and meat cutting workshops. Except for some used for leather and food, most of them are just boiled or simply eaten, or simply discarded. Its nutritional value and function are far from being fully utilized. Only 20% of the material of the raw hide amount is converted into salable leather during tanning, and the rest are all discarded as waste. The resulting pollution and losses are quite serious. Generally, pigskin accounts for about 10% of the carcass weight. For a small butcher factory that slaughters 100,000 pigs a year, about 600 tons of pigskin are produced each year, and the amount of pigskin in large slaughterhouses is even more impressive. It is estimated that more than 3 million tons of fresh pigskin and tanning scraps are discarded or...

Examples

Embodiment 1

[0017] A method for producing non-denatured pigskin insoluble collagen powder, comprising: pretreatment of fresh pigskin and production of collagen powder, wherein the fresh pigskin is subjected to mechanical degreasing, alkali immersion treatment, ultrasonic degreasing, crushing, acid soluble 1. Enzyme extraction to obtain soluble collagen, soak the insoluble matter after extracting soluble collagen through surfactant soaking, washing, freeze embrittlement, low temperature drying, carrier grinding, and carrier recovery to obtain insoluble collagen powder.

[0018] The method for manufacturing the non-denatured pigskin insoluble collagen powder, the pretreatment of the fresh pigskin includes selecting fresh pigskin with good luster and moderate thickness, washing and depilating, removing subcutaneous fat with a knife, and cutting it into pieces with scissors. into 0.1×0.1cm 2 Small pieces 0.8-2 times the size of the area, soaked overnight with 10% NaCl solution to remove salt-...

Technical field:

[0001] The invention relates to a method for manufacturing non-denatured pigskin insoluble collagen powder. Background technique:

[0002] For a long time, pigskin has been used as the leftovers of slaughterhouses and meat cutting workshops. Except for some used for leather and food, most of them are just boiled or simply eaten, or simply discarded. Its nutritional value and function are far from being fully utilized. Only 20% of the material of the raw hide amount is converted into salable leather during tanning, and the rest are all discarded as waste. The resulting pollution and losses are quite serious. Generally, pigskin accounts for about 10% of the carcass weight. For a small butcher factory that slaughters 100,000 pigs a year, about 600 tons of pigskin are produced each year, and the amount of pigskin in large slaughterhouses is even more impressive. It is estimated that more than 3 million tons of fresh pigskin and tanning scraps are discarded or...

Examples

Embodiment 1

[0017] A method for producing non-denatured pigskin insoluble collagen powder, comprising: pretreatment of fresh pigskin and production of collagen powder, wherein the fresh pigskin is subjected to mechanical degreasing, alkali immersion treatment, ultrasonic degreasing, crushing, acid soluble 1. Enzyme extraction to obtain soluble collagen, soak the insoluble matter after extracting soluble collagen through surfactant soaking, washing, freeze embrittlement, low temperature drying, carrier grinding, and carrier recovery to obtain insoluble collagen powder.

[0018] The method for manufacturing the non-denatured pigskin insoluble collagen powder, the pretreatment of the fresh pigskin includes selecting fresh pigskin with good luster and moderate thickness, washing and depilating, removing subcutaneous fat with a knife, and cutting it into pieces with scissors. into 0.1×0.1cm 2 Small pieces 0.8-2 times the size of the area, soaked overnight with 10% NaCl solution to remove salt-...