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Nondestructive fast detection method for quality of channa argus

A detection method, blackfish technology, applied in food testing, material inspection products, color/spectral characteristic measurement, etc., can solve problems such as not suitable for snakeheaded fish, complicated operation, poor reproducibility, etc.

Inactive Publication Date: 2013-11-27
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor reproducibility, complicated operation, long detection time and destructiveness in the existing fish meat quality detection method, and the detection method currently applied to other fish is not suitable for black fish due to the difference in meat quality. The status of quality inspection provides a non-destructive and rapid detection method for snakeheaded fish quality

Method used

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  • Nondestructive fast detection method for quality of channa argus
  • Nondestructive fast detection method for quality of channa argus

Examples

Experimental program
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Effect test

Embodiment 1

[0048] The non-destructive rapid detection method for snakeheaded fish quality comprises the following steps:

[0049] 1) Select fresh and live snakeheaded fish with a weight of more than 1.5kg, remove the scales and clean them after slaughtering, cut the fish body into several pieces, each piece of fish piece weighs 25g, put it in a sterilized sealed bag, Store at ℃;

[0050] 2) From the first day, take 5 pieces of snakehead fish pieces stored in step 1) every 3 hours, put them in 5 cups respectively, and seal the top of the cups with plastic wrap for more than 0.5h, and then put the bionic olfactory system The sample needle is pierced into the plastic wrap, and an air filter filled with activated carbon is inserted on the plastic wrap to supplement the air in the cup, and then the bionic olfactory system is turned on to suck the top layer of air in the sample cup into the air chamber of the bionic olfactory system Contact with the sensor for signal acquisition, the absorpti...

Embodiment 2

[0077] The non-destructive rapid detection method for snakeheaded fish quality comprises the following steps:

[0078] 1) Select fresh and live snakeheaded fish with a weight of more than 1.5kg. After slaughtering, remove the scales and clean them. Cut the fish body into several pieces. Store at ℃;

[0079] 2) From the first day, take 5 pieces of snakehead fish pieces stored in step 1) every day, put them in 5 cups respectively, and seal the top of the cups with plastic wrap for more than 0.5h, and then insert the injection needle of the bionic olfactory system into At the same time, insert an air filter filled with activated carbon to supplement the air in the cup on the plastic wrap, and then turn on the bionic olfactory system to suck the top layer of air in the sample cup into the air chamber of the bionic olfactory system to contact with the sensor. Signal acquisition, the absorption time is 50 seconds, and the bionic olfactory system is blank cleaned after each completi...

Embodiment 3

[0083] The non-destructive rapid detection method for snakeheaded fish quality comprises the following steps:

[0084] 1) Select fresh and live snakeheaded fish with a weight of more than 1.5kg, remove the scales and clean them after slaughtering, cut the fish body into several pieces, each piece of fish piece weighs 20g, put it in a sterilized sealed bag, Store at ℃;

[0085] 2) From the first day, take 5 pieces of black fish pieces stored in step 1) every day, using such as image 3 The acquisition device shown is for signal acquisition, firstly open the valve 10 at the protective gas source 3, the air inlet 8 and the exhaust port 9, turn on the circulating air pump 7, pass the protective gas into the device, and then pull out the drawer-type sample holder Rack 5, put the snakehead fish pieces, turn off the protective gas source 3, and circulate the air pump 7. After ten minutes, use the electronic nose to absorb volatile substances for signal collection; each sample is tes...

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Abstract

The invention relates to technical field of fish quality detection, in particular to a nondestructive fast detection method for the quality of channa argus. The method comprises the following steps: 1, a channa argus is cut into pieces after being killed, and is stored at the temperature of 0-10 degrees; 2, signal collection, volatile basic nitrogen content determination and near infrared spectroscopy detection are performed on volatile substances of the fish at regular time interval; 3, the signals collected in the step 2 are subjected to linear fitting after being calculated through adopting a mathematical model, the infrared spectroscopy is converted into a quality parameter through adopting the mathematical model, and then a standard signal-to-noise ratio parameter and a standard quality parameter are determined according to the content index of the volatile basic nitrogen; 4, a sample to be detected is taken, the signal-to-noise ratio parameter and the quality parameter of the sample to be tested are calculated through testing to determine the quality of the fish through comparison with the standard parameter. The method has the advantages that the objectivity is strong, the reproducibility is excellent, the operation is simple, the result is intuitive, the information is comprehensive and accurate and the nondestructive effect is realized, the detection result has better practicability at the same time, and the method satisfies the judgment requirements for fish specific components of people.

Description

technical field [0001] The invention relates to the technical field of fish meat quality detection, in particular to a non-destructive and rapid detection method for black fish quality. Background technique [0002] Blackfish (Channa argus), native to China, Russia and Korea. Snakefish is an important farmed fish in China, usually in fish ponds, rice fields and reservoirs. Black fish is also known as snake skin fish, piranha, snakehead, mullet, fire head, wealth fish, etc., with various names. "Shen Nong's Materia Medica" listed snakehead as the top grade. Li Shizhen once said: "The snakehead has seven stars on its head, long and round body, equal head and tail, thin scales, black color, and spotted patterns. It is quite similar to vipers. Rare food." Black fish is a rare and precious freshwater fish. It tastes very delicious and has very high nutritional value. Eating black fish meat also has the effect of reducing inflammation. It is a delicacy on the Chinese plate." It...

Claims

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Application Information

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IPC IPC(8): G01N33/12G01N21/35
Inventor 杨月吴琴琴蔡银银周于人詹玉丽李晨迪周瑶杜桂苏顾佳璐马美娟李曼邵拓蔡艳芳许晓岚王南露惠国华
Owner ZHEJIANG GONGSHANG UNIVERSITY
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