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Identification method of natural shark fin and imitated shark fin

A shark fin and natural technology, which is applied in the identification of bionic shark fin needles and the identification of natural shark fin and bionic shark fin, can solve the problems of complicated identification process and high detection cost, and achieve the effect of simple equipment requirements, low detection cost and simple operation

Inactive Publication Date: 2013-07-10
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The DNA identification method is accurate and reliable, but the identification process is complicated and the detection cost is high, so it is only suitable for qualified professional analysts to operate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment one: the identification of natural raw wing

[0016] 1. Preparation of raw wing needles: Take about 100g of raw wings from different parts of the sample, put them in a 1000mL beaker, add room temperature water to soak for more than 15h, then boil in boiling water for 30min, remove, remove sand, peel, pick Remove the meat, bone and soft tissue, take out the wing needles, wash the white tissue attached to the wing needles, and finally put the wing needles in clean water for later use.

[0017] 2. Cold and heat treatment: select the thicker and longer wing needles among the spare samples, measure their length, put them in boiling water for 5 minutes, take them out, measure their length quickly, then put them into an ice water bath for 30 minutes, measure their length immediately after taking them out . Put it into boiling water again and cook for 5 minutes, take it out to measure the length, and finally put it in the ice water bath for 30 minutes, take it out a...

Embodiment 2

[0020] Embodiment two: the identification of natural bright wing

[0021] 1. Preparation of bright wing needles: Take about 100g of bright wing needles from different parts of the sample, put them in a 1000mL beaker, add room temperature water to soak for more than 10h, then boil in boiling water for 30min, remove, remove surface tissue and cartilage, and then Take out the wing needles, and wash the white tissue adhering to the wing needles, and finally put the wing needles in clean water for later use.

[0022] 2. Cold and heat treatment: select the thicker and longer wing needles among the spare samples, measure their length, put them in boiling water for 5 minutes, take them out, measure their length quickly, then put them into an ice water bath for 30 minutes, measure their length immediately after taking them out . Put it into boiling water again and cook for 5 minutes, take it out to measure the length, and finally put it in the ice water bath for 30 minutes, take it ou...

Embodiment 3

[0025] Example 3: Identification of Dry Wing Needles

[0026] 1. Preparation of winged needles: Take about 10g of dried winged needles, put them in a 500mL beaker, soak them in room temperature water for 10 hours, boil them in boiling water for 30 minutes, then put them in clean water for later use.

[0027] 2. Cold and heat treatment: select the thicker and longer wing needles among the spare samples, measure their length, put them in boiling water for 5 minutes, take them out, measure their length quickly, then put them into an ice water bath for 30 minutes, measure their length immediately after taking them out . Put it into boiling water again and cook for 5 minutes, take it out to measure the length, and finally put it in the ice water bath for 30 minutes, take it out and measure the length immediately. The results are shown in the table below:

[0028] process

[0029] 3. Judgment of the result: the shrinkage rate of the fin needles of this sample is 1.35% af...

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Abstract

The invention discloses an identification method of a natural shark fin and an imitated shark fin. The identification method comprises the following steps of: alternatively cooling and heating an obtained fin needle sample; if the length of the fin needle is reduced after boiling water treatment, and is increased after cold water treatment, determining the sample as the natural shark fin needle; and if the length of the fin needle is not changed obviously after boiling water treatment, is not changed after cold water treatment, and even is not changed after repeated heating and cooling treatment, determining the sample as the imitated shark fin needle. According to the method, true or fake shark fin can be conveniently and quickly identified, and the product quality can be effectively controlled in real time, and a very important application value in enhancing supervision of the shark fin market and protecting consumer rights and interests is shown.

Description

technical field [0001] The invention relates to a quality identification method of aquatic products, in particular to a method for identification of natural shark's fin and bionic shark's fin, which is suitable for natural raw shark's fin (skinned) and natural shark's fin processed from common natural shark fins. Judgment of clear fin (peeled) and natural fin needles, etc., and judgment of bionic shark fin needles processed with gelatin as the main component. Background technique [0002] Shark's fin, also known as shark's fin and shark's fin, is a seafood product made from the fins of the shark's chest, abdomen, tail, etc. Its main component is protein, and it also contains chondroitin, bone It is a high-grade nutritional product with high protein and low fat. It has the functions of nourishing blood, nourishing qi, nourishing kidney, nourishing lung and strengthening stomach. Treasures are deeply loved by consumers at home and abroad. [0003] Shark's fin has a long hist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/16
Inventor 杨贤庆李来好林婉玲杨少玲郝淑贤吴燕燕马海霞魏涯
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI