Complex biological preservative for prawns and preparation method thereof

A biological preservative and antistaling agent technology, applied in the field of food processing, can solve the problems of food safety hazards, high energy consumption for freezing, inconvenient transportation and storage, etc., and achieve the effect of increasing sales price, simple processing process, and good processing effect

Inactive Publication Date: 2010-06-16
SHANGHAI OCEAN UNIV
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the preservation methods of shrimp mainly include freezing preservation and ice storage preservation. Although freezing can effectively slow down the spoilage and deterioration of shrimp, freezing preservation will cause protein denaturation of shrimp...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The invention will be further described below in conjunction with the description, but the scope of protection required by the present invention is not limited to the scope described in the embodiments.

[0014] 1. Preparation of compound preservative

[0015] Weigh 1.0g of tea polyphenols and 0.2g of nisin, dissolve them in 973.8ml of water, stir to fully dissolve, add 10ml of glacial acetic acid, stir, add 15g of chitosan, put in a water bath at 50°C, and stir for 10-20 minutes , fully dissolved, ultrasonic degassing for 10 to 15 minutes to obtain a composite biological preservative.

[0016] 2. How to use the compound biological preservative

[0017] Weigh 5 kg of Penaeus vannamei with good carapace color and no incomplete limbs, wash it with tap water 2-3 times, apply a compound biological preservative on the surface of the shrimp body with a brush, let it dry for 30 minutes after applying it, and immediately put it into a fresh-keeping box for 4 ℃ Refrigerate and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a complex biological preservative for prawns and a preparation method thereof. The complex biological preservative comprises the following components in percentage by weight: 0.2 to 10 percent of chitosan, 0.01 to 1.5 percent of tea polyphenol, 0.01 to 1.0 percent of nisin, 0.2 to 2.0 percent of glacial acetic acid and the balance of water. The preparation method comprises the following steps: dissolving 1.0g of tea polyphenol and 0.2g of nisin in 973.8ml of water and stirring the mixture for complete dissolution; adding 10.0ml of glacial acetic acid and stirring; adding 15.0g of chitosan, and performing water bath at the temperature of 50 DEG C; stirring the mixture for 10 to 20min for complete dissolution; and after performing ultrasonic desaeration for 10 to 15min to obtain the complex biological preservative. Compared with the prior art, the complex biological preservative for the prawns can remarkably prolong the shelf life of the prawns.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a composite biological preservative for prawns and a preparation method thereof. Background technique [0002] my country is an important shrimp farming, consumption and trading country in the world. In 2006, the output of Penaeus vannamei aquaculture in my country increased rapidly to 1.02 million tons, accounting for 82.25% of the aquaculture volume of Penaeus vannamei in my country. The meat yield of Penaeus vannamei is as high as 65%. Its tender meat, delicious taste, low fat, high protein and high calcium are deeply loved by people. Developed countries such as Europe, the United States, and Japan have maintained a large amount of imports of Penaeus vannamei for several consecutive years. With the improvement of people's living standards in our country, Penaeus vannamei has gradually become a delicacy on people's tables. [0003] Freshness is the most important qual...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23L3/3562A23L3/3571
CPCY02A40/90
Inventor 谢晶赵海鹏韩志
Owner SHANGHAI OCEAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap