FOOD SCIENCE ›› 0, Vol. ›› Issue (): 249-252.

Previous Articles     Next Articles

Changes of Partial Nitrogen-containing Materials in Penaeus vannamei during 0 ℃ Storage

Zhu GoldTiger   

  • Received:2011-06-29 Revised:2011-09-23 Online:2011-10-25 Published:2011-10-12
  • Contact: Zhu GoldTiger E-mail:dragontiger3@sian.com

Abstract: Quality changes in Penaeus vannamei during 0 ℃ storage were studied. The results showed that the contents of total volatile basic nitrogen (TVB-N), sulfhydryl group and various proteins in whole shrimps and shelled shrimps exhibited different regular changes during 0 ℃ storage. TVB-N increased with the increase of storage time, and the increase was faster in whole shrimps. Sulfhydryl groups increased firstly and then decreased and always presented a higher content in whole shrimps compared with shelled shrimps at the same time points. Myofibrillar protein content distinctly decreased, but alkali-soluble protein content showed a substantial increase, and sarcoplasmic protein content little decreased. Therefore, nitrogen-containing materials can represent quality changes of Penaeus vannamei and has a great significance for in-depth study of the quality of Penaeus vannamei.

Key words: Penaeus vannamei, total volatile basic nitrogen (TVB-N), sulfhydryl group content, protein components

CLC Number: