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http://dx.doi.org/10.5322/JESI.2014.23.2.165

Studies on the Nutritional Components and Amino Acid Compositions of Krill (Euphausia superba)  

Kim, Han-Soo (Department of Food Science & Technology, Pusan National University)
Kim, Min-A (Department of Food Science & Technology, Pusan National University)
Duan, Yishan (Department of Food Science & Technology, Pusan National University)
Kang, Dong-Soo (Division of Food Technology & Nutrition, Chonnam National University)
Jang, Seong-Ho (Department of Bioenviromental Energy, Pusan National University)
Ryu, Jae-Young (Division for Industrial & Environmental Research, Korea Atomic Energy Research Institute (KAERI))
Lee, Chun-Sik (Department of Env. Eng. Gyeongnam National University of science and Technology)
Lee, Won-Ki (Department of Polymer Engineering, Pukyung National University)
Publication Information
Journal of Environmental Science International / v.23, no.2, 2014 , pp. 165-170 More about this Journal
Abstract
Despite abundant nutritions, krill is barely used for human consumption. The objective of this study was to investigate the nutritional component and amino acid composition of krill and further utilizes it for food resource. Proximate compositions of krill meal were consisted of crude protein 58.85%, ash 13.89%, crude fat 12.45%, carbohydrate 11.01% and moisture 3.80%. The amount of total amino acid was 54.74 g%, and the major amino acids were glutamic acid (7.71 g%), aspartic acid (6.20 g%), leucine (4.72 g%), lysine (4.41 g%), arginine (6.49 g%) and alanine (3.25 g%), respectively. Total essential amino acid content was 21.87%, and the major amino acids were leucine (4.72 g%), lysine (4.41 g%) and isoleucine (2.90 g%), respectively. Content of total free amino acid in krill meal was 20224.30 mg/kg, and the major free amino acids were taurine (4501 mg/kg), arginine (3130.60 mg/kg), proline (2302.90 mg/kg), alanine (2088.10 mg/kg), glycine (1606.40 mg/kg) and lysine (1197.40 mg/kg). Especially, taurine was the most abundant of all free amino acids. Thus, these data indicate that krill seems to be abundant protein source food.
Keywords
Krill (Euphausia superba); Nutritional component; Amino acid composition;
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Times Cited By KSCI : 3  (Citation Analysis)
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