Prospects of Red King Crab Hepatopancreas Processing: Fundamental and Applied Biochemistry

Tatyana Ponomareva,Michael Filippov,Sergey Lapaev,Maria Timchenko,Evgeny Sogorin

doi:10.3390/recycling6010003

Abstract

Since the early 1980s, a large number of studies on enzymes from the red king crab hepatopancreas were conducted. They have been relevant both from a fundamental point of view in terms of studying the enzymes of marine organisms and in terms of rational natural resource management aimed to obtain new valuable products from the processing of crab fishing waste. Most of these works were performed by Russian scientists due to the area and amount of waste of red king crab processing in Russia (or the Soviet Union). However, the close phylogenetic kinship and the similar ecological niches of commercial crab species and the production scale of the catch provide the bases for the successful transfer of experience in the processing of the red king crab hepatopancreas to other commercial crab species caught worldwide. This review describes the value of recycled commercial crab species, discusses processing problems, and suggests possible solutions for these issues. The main emphasis is made on hepatopancreatic enzymes as the most salubrious products of red king crab waste processing.

Highlights

The global growth in consumer demand for food products based on commercial species of marine organisms has stimulated fishers to increase production
The hepatopancreas is an organ of the digestive system that functions as both the liver and pancreas [17]
The hepatopancreas makes up about 90% of the intestines of the carapace and 5–10% of the total weight of the animal [18]

Summary

Introduction

The global growth in consumer demand for food products based on commercial species of marine organisms (fish, crab, squid, etc.) has stimulated fishers to increase production. The inability to increase the catch volume endlessly and related waste recycling problems have put forward the consideration of advanced processing of secondary raw materials to obtain new commercially valuable products. Crabs are a favorite catch of fishers worldwide due to the high price of their meat. The first four species belong to the infraorder of half-tailed or false crabs (Anomura) of the suborder Pleocyemata, order Decapoda. The rest of them belongs to the infraorder of true crabs (Brachyura) (Figure 1) [2]

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