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Fenneropenaeus Indicus (Fenneropenaeu + indicu)
Selected AbstractsThermal processing of prawn ,kuruma' in retortable pouches and aluminium cansINTERNATIONAL JOURNAL OF FOOD SCIENCE & TECHNOLOGY, Issue 2 2008Chitradurga O. Mohan Summary Prawn ,kuruma' was prepared from Indian white shrimp (Fenneropenaeus indicus), packed in conventional 301 × 206 and 401 × 411 aluminium cans and in thin profile retort pouches having a three-layer configuration of 12.5 , polyester, 12.5 , aluminium foil and 85 , cast polypropylene of size 16 × 20 cm and 17 × 30 cm. The physico-chemical tests conducted on these containers showed their suitability for thermal processing. Prawn to kuruma ratio of 65:35 was maintained in all the containers and heat processed to equal lethality in an over pressure autoclave with the facility to record the time,temperature data, F0 value and cook value. The process time was calculated by using formula method. The processing in 16 × 20 cm and 17 × 30 cm retortable pouch resulted in 35.67% and 56.56% reduction in process time compared with 301 × 206 and 401 × 411 cans, respectively, with equal pack weight. The amino acid content did not vary considerably in both containers. In the canned samples the reduction of sulfhydryl content was 50.54% more when compared with the pouched product. Products packed in pouches were found to be superior to canned products with regard to sensory and textural attributes such as colour, firmness, hardness, chewiness, and overall acceptability. [source] Total lipid, fatty acid composition and lipid oxidation of Indian white shrimp (Fenneropenaeus indicus) fed diets containing different lipid sourcesJOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, Issue 6 2009Hossein Ouraji Abstract BACKGROUND: Seafood is an important constituent of the human diet. In Iran, Indian white shrimp (Fenneropenaeus indicus) is the major cultured shrimp species as a result of market demand, local availability and growth rate. It is mainly reared using commercial feed. The purpose of this study was to evaluate the effects of replacing 50% of the fish oil by vegetable oils in shrimp feed on total lipid, fatty acid composition and lipid oxidation of shrimp muscle. RESULTS: No significant differences in total lipid content (6.1,7.3 g kg,1) were found between edible tissues of shrimp fed different diets. The major fatty acids in shrimp muscle were palmitic, oleic, lionoleic, stearic, eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids. Higher levels of EPA and DHA were observed in muscle of shrimp fed a diet containing fish oil. Oxidative rancidity, measured as thiobarbituric acid reactive substances, for all shrimps did not exceed 0.2 mg malonaldehyde kg,1 muscle tissue, which was low and acceptable. CONCLUSION: This study had shown that the fatty acid composition of feed directly affects the fatty acid composition of Indian white shrimp muscle. Farmed Indian white shrimp can be considered as a species of low fat and shrimp muscle was quite stable to oxidation during storage. Copyright © 2009 Society of Chemical Industry [source] Histological and immunocytochemical localization of serotonin-like immunoreactivity in the brain and optic ganglia of the Indian white shrimp, Fenneropenaeus indicusMICROSCOPY RESEARCH AND TECHNIQUE, Issue 3 2008S. Santhoshi Abstract Serotonin is one of the important neurotransmitter and neuromodulator so far studied in crustacean models. With its secretory sites well-studied in higher crustaceans, its function in controlling the release of metabolic hormones from their storage and release sites has been well proved. The present study attempts to localize serotonin-like immunoreactivity in Fenneropenaeus indicus, a commercially important shrimp species and a natural inhabitant of the Indian oceans. Histological studies were employed to visualize the different types of neurosecretory cells and their regions of occurrence in brain and optic ganglia on the basis of their size, shape, and tinctorial properties. Immunocytochemical studies were performed in the brain and optic ganglia with specific antisera against serotonin in combination with peroxidase anti-peroxidase to map the serotonin-like immunoreactive cells. Variations in the immunoreactivity were observed on comparing the cells of brain and optic ganglia. Medulla terminalis region had intense serotonin immunoreactivity suggesting it to be the primary source of the neurotransmitter. Microsc. Res. Tech., 2008. © 2007 Wiley-Liss, Inc. [source] Effect of microencapsulated diets supplemented with genetically modified bacteria on the growth and survival of Fenneropenaeus indicus postlarvaeAQUACULTURE NUTRITION, Issue 1 2007S. SIRVAS-CORNEJO Abstract Microencapsulated diets were prepared and supplemented with two genetically modified bacteria that produced digestive enzymes. One produced a protease (strain Escherichia coli XL1Bluep635), and the other a lipase and a protease (strain E. coli XL1Bluep7). Fenneropenaeus indicus at the postlarval 1 stage (PL1) were fed these diets for 16 days, and their total length and survival were recorded every 2 days. The results were analyzed by anova and sequential Turkey,Kramer analysis. Shrimp fed on the diet supplemented with strain E. coli XL1Bluep635 (diet 635) exhibited the fastest growth rate of 0.26 mm day,1, followed by shrimp fed on the control commercial unsupplemented diet CD2 , 0.21 mm day,1, and shrimp fed on diet supplemented with strain E. coli XL1Bluep7 (diet 7) , 0.20 mm day,1. The growth rates of shrimp fed on diet supplemented with control strain E. coli XL1BluepUC19 (diet XL1), and those fed on unsupplemented diet prepared in our laboratory (D2), were 0.15 and 0.14 mm day,1, respectively. The survival of shrimp fed on diets CD2 and 635 showed the same level of survival of 83.3%, followed by those fed on diet D2 with 76.6%. Shrimp fed on diet 7, showed 71.6% survival, and those fed on diet XL1, 55%. [source] ,-Mercapto-ethanol-treated yeast showed better protection against white spot syndrome virus infection in Indian white shrimp Fenneropenaeus indicusAQUACULTURE RESEARCH, Issue 10 2010Thavarool Puthiyedathu Sajeevan First page of article [source] SHORT COMMUNICATION: The effects of inulin on growth factors and survival of the Indian white shrimp larvae and postlarvae (Fenneropenaeus indicus)AQUACULTURE RESEARCH, Issue 9 2010Seyed Hossein Hoseinifar First page of article [source] Marine yeast diet confers better protection than its cell wall component (1-3)-,- d -glucan as an immunostimulant in Fenneropenaeus indicusAQUACULTURE RESEARCH, Issue 15 2009Thavarool Puthiyedathu Sajeevan Abstract A comparative study was performed to evaluate the immunostimulatory effect of yeast and yeast-derived glucan in white prawn Fenneropenaeus indicus (sub-adults of ,20 gm). Feed with a whole cell biomass of marine yeast Candida sake S165 (CSY) at a concentration of 10% (w/w) and another feed with 0.2% glucan of C. sake S165 (CSG) were used in the study. Fenneropenaeus indicus were fed with these diets for 40 days and subsequently challenged with the white spot syndrome virus (WSSV). Haematological parameters such as the total haemocyte count, phenoloxidase activity, superoxide anion (O2,) level, haemolymph peroxidase level and post-challenge survival against WSSV infection were determined to assess the immune status. In the present experiment, a higher immunity index and post-challenge survival were recorded in shrimps fed with the whole cell yeast diet. The better immunostimulatory performance of the whole cell yeast diet compared with the glucan diet could be attributed to the cellular constituents of yeast including the cell wall glucan, nucleotides, carotenoid pigments and vitamins. Here we observed that whole cell yeast performed better as an immunostimulant than the extracted cell wall glucans. Therefore, the use of yeast biomass in diets, rather than the yeast cell wall extract, glucan, would confer better protection against microbial infection besides reducing the cost of shrimp production. [source] Alkali insoluble glucan extracted from Acremonium diospyri is a more potent immunostimulant in the Indian White Shrimp, Fenneropenaeus indicus than alkali soluble glucanAQUACULTURE RESEARCH, Issue 11 2009Abdulaziz Anas Abstract Effect of an extraction method on the structure of glucan and its immunostimulatory response in Fenneropenaeus indicus was investigated. Here we extracted alkali insoluble glucan (AIG) and alkali soluble glucan (ASG) from a filamentous fungi Acremonium diospyri following alkali,acid hydrolysis and the sodium hypochlorite oxidation and dimethyl sulphoxide extraction method respectively. Structural analysis showed that 85% of glucan in AIG was a (1,3)-,- d -glucan and it increased the prophenoloxidase and reactive oxygen intermediate activity when administered to F. indicus. On the other hand, ASG, which contained 93% (1,3)-,-glucan, did not induce significant immune response in shrimp. Here we report that the difference in immunostimulatory potential between AIG and ASG is due to the difference in the percentage of (1,3)-,- d -glucans present in each preparation, which varies with the method of extraction employed. Also our observations suggest that glucan can be used as a potential immunostimulant to shrimp, provided it contains (1,3)-,- d -glucan as the major fraction. [source] | |||||||||||||