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Recycling technology of leftovers of ictalurus punctatus

A technology for channel catfish and leftovers, which is applied in the fields of recycling technology, recovery of fat oil/fatty acid from waste materials, and recovery of fatty substances. Labor and production costs, avoiding environmental pollution, and no toxic and side effects

Inactive Publication Date: 2009-12-30
湖北省水产科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for more efficient utilization of resources while also producing valuable compounds that could improve human wellness through their beneficial properties such as reducing chances of developing diseases associated therewith. It uses specific types of organisms called crayfish (Crocidius) rostratus), along with various substance sources like seafood scrapings and algae harvested during biological processes. By treating these wastes into useful components, it becomes possible to create high-value natural fertilizers without causing negative impact on our planet's ecosystems.

Problems solved by technology

This patented technical problem addressed in this patent relates to improving the efficiency of producing valuable ingredients like calcium through enzyme digestion with no added burden to wildlife populations. Additionally, there may exist sources where these beneficial compounds cannot effectively absorb into living tissues due to insufficient absorption rates associated with naturally occurring mineral compositions found within channels crab eggs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1000 grams of channel catfish offal, grind it with a meat grinder, put it into a 1000ml beaker and stir evenly, adjust the pH value to 7.0, add 1.0 grams of papain at 1 million units / gram, and hydrolyze at a constant temperature of 55°C for 3.0 hours, After taking it out, use a 100-mesh vibrating sieve to separate the channel catfish bones on the sieve and the mixture of protein and fatty acid under the sieve, put the channel catfish bones on the sieve in an electric heating ventilation box to dry at 80°C, and then crush them to obtain the finished fish bone meal . The mixture of protein and fatty acid under the sieve is inactivated by enzyme in a water bath at 85-90°C for 25 minutes, and then placed in a concentrated sedimentation tank for separation after cooling, or it can also be transferred to a centrifuge device for separation treatment. The centrifugation speed is 3000 rpm. The separation treatment time was 30 minutes. After separation, the upper layer fatt...

Embodiment 2

[0032] Take 1000 grams of channel catfish scraps, mince them with a meat grinder, put them into an enzyme hydrolysis reaction tank and stir evenly, adjust the pH value to 6.5, add 1.3 grams of papain at 2 million units / gram, and put it in a constant temperature water bath at 53°C Keep warm for 3.5 hours. After taking it out, use a 100-mesh vibrating sieve to separate the channel catfish skeleton on the sieve and the mixture of protein and fatty acid under the sieve. Put the channel catfish skeleton on the sieve in an electric heating ventilation box to dry at 80°C, and then After crushing, the finished fish bone meal is obtained. The mixture of protein and fatty acid under the sieve is inactivated by enzyme in a water bath at 85-90°C for 25 minutes. After cooling, it is concentrated and separated in a concentrated sedimentation tank, or it can also be transferred to a centrifugal device for separation. The centrifugal speed is 3000 rpm. The centrifugation treatment time was 30...

Embodiment 3

[0034]Take 1000 grams of channel catfish offal, grind it with a meat grinder, put it into a 1000ml beaker and stir evenly, adjust the pH value to 6.0, add 1.45 grams of papain at 1.5 million units / gram, and hydrolyze at a constant temperature of 58°C for 3.0 hours. After taking it out, use a 100-mesh vibrating sieve to separate the channel catfish bones on the sieve from the mixture of protein and fatty acid under the sieve, put the channel catfish bones on the sieve in an electric heating ventilation box to dry at 80°C, and then crush them to obtain fish bone meal finished product. The mixture of protein and fatty acid under the sieve is inactivated by enzyme in a water bath at 85-90°C for 25 minutes. After cooling, it is concentrated and separated in a concentrated sedimentation tank, or it can also be transferred to a centrifugal device for separation. The centrifugal speed is 3000 rpm. The centrifugation treatment time was 35 minutes. After separation, the upper layer fat...

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PUM

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Abstract

The invention discloses a recycling technology of leftovers of ictalurus punctatus. In the technology, the leftovers of the ictalurus punctatus are mainly adopted to extract finished products of fish bone powder, albumen powder and unsaturated fatty acid through separating and drying by the method of enzyme hydrolysis by regulating pH value and temperature. In the technology, deep processing and comprehensive utilization are carried out on the fish bone powder; the products obtained by the recycling technology are free of heavy metals over standard and drug residues and are sanitary and safe; after processing, the wastewater produces no non-point pollution and water pollution; the equipments and flows required by the technology are simple and the production cost is low.

Description

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Claims

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Application Information

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Owner 湖北省水产科学研究所
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