Microbial Consortium for Processing Secondary Collagen-Containing Raw Materials into Feeds for Farm Animals

M M Dragunova,O V Kriger,L K Asyakina,A Y Prosekov,N S Velichkovitch,I S Milentieva,O V Kozlova,A V Pozdnyakova

doi:10.14419/ijet.v7i4.38.24337

Abstract

In recent years, the problem of processing and rational use of the secondary raw materials of the meat industry is becoming relevant all over the world. Pork skin or wastes accumulate in significant quantities at meat-packing plants and slaughter houses in livestock farms. There are various technologies for processing collagen-containing raw materials, but their widespread introduction to enterprises is constrained by high cost. One of the effective approaches to solving this problem is the processing of collagen-containing wastes of pig complexes by biotechnological methods. For these purposes, compositions of consortia based on yeast have collagenase activity: Clavispora lusitaniae Y-3723, Candida utilis Y-263, Candida lipotica Y-3153, Candida lipotica Y-3157, Candida arthrobotrys F-1138. The compositions of nutrient media for co-cultivation of yeast were selected: temperature, pH, duration of cultivation. It was found that the degree of biodegradation of collagen-containing raw materials under the action of the consortia is 89.7%. The mass fraction of protein in the hydrolysates of collagen-containing raw materials is 78.15%, which opens prospects for their use as feed for farm animals.

Highlights

The main problem of feeding farm animals is the problem of consuming protein containing all the amino acids necessary for life
A full analysis of the chemical composition of the secondary collagen-containing raw material of pig complexes was made in [17] (pig skin from the pigs of the Landras breed (LLC SPK Chistogorskiy, Kemerovo Region)) .The obtained data allowed to conclude that the selected samples are an extremely valuable source substances necessary for the animal body
Clavispora lusitaniae Y-3723 is a producer of collagenase, an antagonist of Esherichia coli; Candida utilis Y263 is a producer of protein biomass; Candida lipotica Y-3153, Candida lipotica Y-3157 - producers of lipolytic enzymes, Salmonella typhimurium antagonists; Candida arthrobotrys F-1138 is a producer of collagenase, the antagonist Streptococcus pyogenes

Summary

Introduction

The main problem of feeding farm animals is the problem of consuming protein containing all the amino acids necessary for life. Prospective raw materials for obtaining a high-grade feed animal protein of animal origin are secondary collagen-containing raw materials, formed in large quantities in the production of meat and meat products [11]. The use of such raw materials in the food industry is no more than 25%, while the disposal of secondary raw materials is prohibited at the legislative level [9, 12]. The aim of the work is to create a microbial consortium for the processing of secondary collagen-containing raw materials in feed for farm animals

Objectives

Results

Conclusion