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Comparative evaluation of the nutritional quality of male versus female freshwater Mud Eel, Monopterus cuchia


Md Hasan Faruque1,2*, Rabiullah Bhuiyan1, Kaniz Fatema1, Md. Rakibul Hasan3

1Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka-1000, Bangladesh. 2Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama 240-8501, Japan. 3Zoology Section, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka-1205, Bangladesh.

ABSTRACT: The nutritional quality in muscle, focusing onthe proximate, amino acids, fatty acids and minerals compositions of Monopterus cuchia were analyzed, depending on the sex. No significant differences were observed in proximate compositions between male and female fish. The predominant amino acids were glutamic acid, aspartic acid, lysine, leucine and arginine in both muscles of both sexes and only glutamic acid showed the significant sexual dependency. The ratio of essential and non-essential amino acids was similar (0.67) in both sexes. For fatty acids, the female had the higher percentage of total MUFAs and PUFAs than the male counterpart. The heptadecanoic acid,pentadecanoicacid andpalmitic acid were the primary SFAs, which varied significantly between sexes. The most abundant MUFA (i.e. palmitoleic acid) also showed the sexual dependency. No such significant variation was found in eicosapentaenoic acid (dominated fatty acid of PUFAs group) content. Minerals were found in order of K>Na>Ca>Mg>Mn>Zn, with Na/K ratio of 0.20 in male and 0.21 in female. Based on the nutritive values, M. cuchiacan be considered as a nutritionally enriched food item for the human diet.

KEYWORDS: Proximate composition, amino acids,fatty acids, minerals, ω-3/ω-6 ratio, Monopterus cuchia

CORRESPONDENCE: Md Hasan Faruque

 

 
 
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