Method of green and safe preservation for aquatic products at sea

US11617374B2 · kind B2 · utility

Assignee

• ZHEJIANG UNIVERSITY OF TECHNOLOGY · CN

Inventors

• Yuting Ding · Hangzhou City, CN
• Shulai Liu · Zhejiang, CN
• Xuxia Zhou · Hangzhou City, CN
• Jianhua Liu · Orlando, US
• Fei Lv · Jinhua City, CN
• Jianyou Zhang · Nanhu, CN
• Yanbo Wang · Duluth, US
• Zhenyu Zhang · Fremont, US

Key dates

• Filing date: Jun 25, 2019
• Grant date: Apr 4, 2023
• Expiry date: Oct 8, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23V2002/00
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

A method for preserving aquatic products at sea includes the following steps: an on-board refrigeration system is used to refrigerate the antifreeze solution, and the antifreeze solution is used as a main cold source, and temperatures at centers of fish bodies drop rapidly to achieve rapid cooling and reduce activity of endogenous enzymes and inhibit proliferation of microorganisms by direct or indirect heat exchange with captured catches. The antifreeze solution contains edible alcohol, propylene glycol, glycerol, calcium chloride, sodium chloride, amino acids, Antarctic krill protein hydrolysate with average molecular weight of 50-100 KDa, surfactant and water, and the mass percentage of each component is as follows: edible alcohol 15%-30%, propylene glycol 10%-30%, glycerol 2%-15%, calcium chloride 1%-10%, sodium chloride 3%-10%, amino acid 0.1%-0.15%, Antarctic krill protein hydrolysate 0.01%-0.3%, surfactant 0.005%-0.5%, and the balance is water.