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http://dx.doi.org/10.5657/KFAS.2019.0105

Nutritional Components of Alaska Pollock Theragra chalcogramma Roe of Various Grades  

Park, Young Joo (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Jeong, Hyo-Pin (Research and Development Institute, Deok-Hwa Food)
Kim, Jin-Soo (Research Center for Industrial Development of Seafood, Gyeongsang National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.52, no.2, 2019 , pp. 105-113 More about this Journal
Abstract
The objective of this study was to investigate Alaska pollock Theragra chalcogramma roe grade distribution among blocks and its nutritional components by grade. M grade roe was predominantly distributed in blocks labeled as L and M (52.1 and 82.8%, respectively), and S grade roe was mainly found in blocks labeled as S (98.6%). Products labeled as containing KB and KC grade roe contained 77.1 and 65.5% normal roe, respectively. Among the five roe grades (L, M, S, G, and Off), total amino acid content was higher in normal roe than in abnormal roe. The major amino acids found in normal roe were leucine, aspartic acid, and glutamic acid, whereas G and Off grade roe contained leucine and glutamic acid, but not aspartic acid. The calcium, phosphorus, potassium, and iron contents of the five roe grades were within the ranges 13.0-20.0, 314.4-392.0, 124.1-157.7, and 1.7-2.2 mg/100 g, respectively. The five roe grades contained total fatty acid contents of 765-1,252 mg/100 g, with no significant differences among grades. The major fatty acids were 16:0, 18:1n-9, 20:5n-3, and 22:6n-3.
Keywords
Alaska pollock; Theragra chalcogramma; Roe; Alaska pollock roe; Salted pollock roe;
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