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Changes in Physicochemical Composition of Sea Urchin Roe by Steaming Treatment

열처리 조건에 따른 성게 알의 이화학적 성분 변화

  • Lee, Sung-Uk (Dept. of Food Science and Technology, Daegu University) ;
  • Lee, Hye-Young (Dept. of Food Science and Technology, Daegu University) ;
  • Kim, Seong-Ho (Dept. of Food Science and Technology, Daegu University) ;
  • Kim, Duk-Jin (Dept. of Food Science and Technology, Daegu University)
  • Received : 2012.02.21
  • Accepted : 2012.04.09
  • Published : 2012.04.30

Abstract

This study was performed to investigate the physicochemical properties of sea urchin ($Anthocidaris$ $crassispina$, $Pseudocentrotus$ $depressus$, $Hernicentrotus$ $pulcherrimus$) roe as a processed or canned food by steaming treatment. Proximate compositions of $A.$ $crassispina$ roe and $P.$ $depressus$ roe were similar, but water, crude ash, and carbohydrate contents of $H.$ $pulcherrimus$ roe showed little differences. Proximate compositions of sea urchin roe showed slight differences with steaming time, raw samples showed no differences. Glycine content of the three raw sea urchin roe samples showed the highest concentration among free amino acids, followed by arginine, alanine, and lysine, in order. Total free amino acid contents of raw sea urchin roe were 754.70 mg% ($A.$ $crassispina$), 567.75 mg% ($P.$ $depressus$), and 449.44 mg% ($H.$ $pulcherrimus$). Total free amino acid content of 5 min steaming sample was highest among steaming and canning conditions. ATP, ADP, and AMP contents of raw $P.$ $depressus$ roe sample was higher than those of $A.$ $crassispina$and $H.$ $pulcherrimus$ roe. Major fatty acids of the three raw sea urchin roe samples were myristic acid, palmitic acid, and EPA. S.F.A. content of raw samples of $A.$ $crassispina$and $H.$ $pulcherrimus$ roe was higher than U.F.A content, whereas U.F.A. content of $P.$ $depressus$ roe was highest among the three raw samples. For minerals K, P, Fe, and Zn contents were highest in $A.$ $crassispina$roe while Ca, Mg, Na, and Cu contents were highest in $H.$ $pulcherrimus$ roe. For heavy metals, Cd, Pb and As were detected in all samples in trace amounts under the criteria of the Korea food codex.

본 연구에서는 성게 알의 열처리 조건에 따른 제품의 이화학적 특성 변화를 조사하여 가공적성에 대한 기초자료를 제공함으로써, 성게 알을 이용한 가공식품이나 통조림 개발에 도움이 되고자 하였다. 보라성게 알과 분홍성게 알은 일반성분 조성이 유사하였고, 말똥성게 알의 수분, 조회분, 탄수화물 함량에서 약간의 차이를 보였다. 모든 성게 알의 일반성분이 가열시간에 따라 약간의 변화는 있었으나 생시료와의 차이가 크지 않았다. 보라성게, 분홍성게 및 말똥성게 알 중의 유리아미노산은 glycine 함유량이 가장 높았고, arginine, alanine, lysine 순의 함량을 보였다. 생시료의 유리아미노산 총 함량은 보라성게 알 754.70 mg%, 분홍성게 알 567.75mg%, 말똥성게 알 449.44 mg%로 보라성게 알의 유리아미노산 함유량이 가장 높았다. 모든 시료에서 생시료보다 5분 가열시료에서 총 유리아미노산 함량이 높은 것으로 나타났다. 통조림 제품의 유리아미노산 함량에서 보라성게와 분홍성게 알은 glutamic acid와 glycine을 제외한 다른 유리 아미노산의 함유량이 매우 낮았으나 말똥성게 알의 경우 대부분의 유리아미노산이 생시료보다 높았다. 핵산물질 측정결과, 분홍성게의 알은 보라성게 및 말똥성게의 알보다 ATP, ADP 및 AMP의 함량이 높았다. 성게 알의 주요 지방산은 myristic acid, palmitic acid 및 EPA로 확인되었다. 보라성게 및 말똥성게 알은 생시료의 경우 포화지방산이 불포화지방산보다 다소 높은 것으로 나타났으나, 분홍성게 알의 경우는 불포화지방산 함량이 포화지방산보다 더 높았고 생시료 중 가장 높게 나타났다. 보라성게 알의 경우 칼륨, 인, 철, 아연의 함량이 비교적 높았고, 말똥성게 알에는 칼슘, 마그네슘, 나트륨 및 구리의 함량이 높게 확인되었다. 카드뮴, 납과 비소 등의 중금속은 모든 시료에서 미량으로 검출되었지만 식품규격 기준치에 미치지 못하는 수준이었다.

Keywords

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  1. Effect of Salt Fermentation on the Physicochemical Properties and Antioxidant Activities of Sea Urchin Roe from Anthocidaris crassispina and Pseudocentrotus depressus vol.47, pp.4, 2015, https://doi.org/10.9721/KJFST.2015.47.4.460