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A method for refining tilapia oil

A technology for tilapia oil and tilapia, which is applied in the direction of oil/fat production and fat production, can solve problems such as reducing the profit of production enterprises, and achieve the effects of good product quality, simple extraction operation and low cost.

Active Publication Date: 2018-03-06
SHANGHAI OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For tilapia oil, which has a large amount of extracted raw materials and a large output, it will inevitably reduce the profit of the production enterprise

Method used

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  • A method for refining tilapia oil
  • A method for refining tilapia oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Extract tilapia oil by enzymatic hydrolysis: weigh 50g of minced tilapia heads at about -4°C, and extract by enzymatic hydrolysis. The enzymatic hydrolysis temperature is 55°C, the ratio of material to liquid is 1:1, the amount of enzyme added: 1.2%, and the enzymatic hydrolysis time is 2.5 h; After the enzymatic hydrolysate is centrifuged at 4000r / min for 30min, the upper layer is crude fish oil. The prepared crude tilapia oil yield was 13.23g / 100g fish head (wet sample).

Embodiment 2

[0021] Extract tilapia oil by enzymatic hydrolysis: weigh 50g of minced tilapia heads at about -4°C, and extract by enzymatic hydrolysis. The enzymatic hydrolysis temperature is 60°C, the ratio of material to liquid is 1:0.5, the amount of enzyme added: 1.6%, and the enzymatic hydrolysis time is 2.5 h; After the enzymatic hydrolysate is centrifuged at 4000r / min for 30min, the upper layer is crude fish oil. The prepared crude tilapia oil yield was 12.04g / 100g fish head (wet sample).

Embodiment 3

[0023] Extract tilapia oil by enzymatic hydrolysis: weigh 50g minced tilapia heads at about -4°C, and extract by enzymatic hydrolysis. The enzymatic hydrolysis temperature is 50°C, the ratio of material to liquid is 1:1, the amount of enzyme added: 1.2%, the enzymatic hydrolysis time is 2.5 h; After the enzymatic hydrolysate is centrifuged at 4000r / min for 30min, the upper layer is crude fish oil. The obtained crude tilapia oil yield was 10.59g / 100g fish head (wet sample).

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Abstract

The invention discloses a method for refining tilapia oil, which comprises the following steps: by using tilapia processing waste fish heads as the raw material, shredding, hydrolyzing with compound proteinase under certain conditions, centrifuging to obtain crude fish oil, and decolorizing the crude fish oil with atlapulgite under certain conditions to obtain the refined fish oil. The crude fish oil yield is 12-13g per 100g of fish head; the fish oil extraction is simple to operate and low in cost; and the obtained product has favorable product quality. After the crude fish oil is decolorized and subjected to other refinement treatment, the prepared fish oil is clear and transparent light yellow in color, and the oil quality achieves the refined fish oil primary standard except the iodine value.

Description

Technical field [0001] The invention relates to the technical field of deep processing of fish products, in particular to a method for refining tilapia oil. Background technique [0002] Tilapia (Tilapia); taxonomic genus: Chordata (Phylum Chordata), Actinopterygii (Actinopterygii), Perciformes (Perciformes), Cichlaidae (Cichlaidae), Tilapia (Tilapia) ). There are more than 600 kinds of tilapia, 15 of which are cultivated. Now tilapia is a freshwater fish cultivated by the key scientific research of the world aquaculture industry. Tilapia is native to Africa, distributed in the northwest of South America, along the Nile River in Africa, and China in Asia. my country was first introduced into Taiwan Province from Singapore by Wu Zhenhui and Guo Qizhang in 1946. To commemorate these two people, it was first called "Wu Guoyu". It was introduced from Vietnam to my country in 1957, so it is also called "Vietnamese Fish". Because it is native to Africa and resembles a native crucia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/02
Inventor 陶宁萍李梦凡俞骏刘承初潘镜
Owner SHANGHAI OCEAN UNIV