碩士 / 國立屏東科技大學 / 水產養殖系 / 93 / This study was aimed to find out astaxanthin content and haemolymph antioxidant status in wild shrimp. Wild shrimps sample were analyzed for the astaxanthin content in various of tissues to determine the relationships between the astaxanthin contents and antioxidant status. Haemolymph total antioxidant status (TAS), superoxide dismutase (SOD) and gultathione peroxidase (GSH-Px) are chosen as index of shrimp antioxidant capacity. Hepatopancreatic enzymes, Astpartate aminotransferase (AST) and Alanine aminotransferase (ALT) were chosen as index of shrimp hepatopancreatic damage.
The result showed that astaxanthin concentrations were significantly different in different species and tissues. For wild Metapenaeopsis barbata, Metapenaeus joyneri and cultured Penaeus monodon, Astaxanthin contents in head were the highest. For cultured Litopenaeus vannamei, astaxanthin contents in hepatopancreas were higher than those of other prawns. Astaxanthin contents in shell and flesh of cultured P. monodon were significantly higher than those of other prawns (p < 0.05). Wild P. marginatus had the lowest total astaxanthin concentration and the highest in wild P. monodon. There were significantly different in total astaxanthin concentration among species of prawn (p < 0.05). For small and large wild prawns, total astaxanthin content increased significantly with shrimp weight (p <0.05). For small wild shrimp, large wild prawns, and cultured prawns, this negative
relationships between astsxanthin contration in hepatopancrease and shell were observed. For all of prawn, there was the highest astaxanthin concentration ratio in head, except cultured L. vannamei.
The antioxidant status were significantly different in different species (p < 0.05). Higher TAS were observed in wild P. marginatus and P. semisulcatu, and lower TAS in wild P. monodon and cultured P. monodon. For wild P. marginatus and P. monodon, SOD activities were lower than other prawns. There were significantly higher SOD activities in cultured L. vannamei (p < 0.05). SOD activities had significantly different among species. For wild M. japonicus and P. monodon, there were lower GSH-Px activities but the highest GSH-Px activities in P. marginatus. Wild P. monodon and cultured L. vannamei had the lowest AST activities, and there were the highest AST activities in M. japonicus and P. semisulcatu. ALT activities were the highest in P. marginatus.
The study represents the background values of the wild shrimp astaxanthin distribution and antioxidant.
| Identifer | oai:union.ndltd.org:TW/093NPUST086001 |
| Date | January 2005 |
| Creators | Keng-Chang Kao, 高耿章 |
| Contributors | Chih-Hung Pan, Winton, Cheng, 潘志弘, 鄭文騰 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 108 |
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