Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Comparison of Extractive Nitrogenous Constituents in the Three Species of Raw Bloody Clams, Scaphrca broughtonii, S. subcrenata, and Tegillarca granosa Extracts

피조개, 새고막 및 고막의 함질소 엑스성분 조성 비교

  • Park, Choon-Kyu (Department of Food Science and Technology, Yosu National University)
  • 박춘규 (여수대학교 식품공학과)
  • Published : 2002.12.01
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Abstract

Extracts of raw bloody clams, broughton's ribbed ark (Scaphrca broughtonii), subcrenated ark (S. subcrenata), and granulated ark (Tegillarca granosa), were analyzed and compared foe extractive nitrogen, free amino acids, combined amino acids, ATP and related compounds, quaternary ammonium bases, and guanidino compounds. The contents of extractive nitrogen in broughton's ribbed ark, subcrenated ark, and granulated ark were 479, 506, and 432 mg/100 g, respectively. Twenty-eight or twenty-nine types of free amino acids were detected in all three extracts, among which taurine, ${\beta}-alanine$, glutamic acid, and alanine were the major ones. The composition of the major extractive components such as free amino acids, combined amino acids, ATP and related compounds, TMAO, TMA, and creatine in the extracts were similar among the extracts, but their contents were different.

고막류의 함질소엑스성분 조성을 구명하기 위하여 남해안에서 생산되는 산업적으로 중요한 피조개, 새고막 및 고막의 3종에 대하여 맛과 밀접한 관계가 있는 엑스분질소, 유리아미노산, 결합아미노산, ATP관련화합물, 4급암모늄염기, guanidino 화합물 등을 분석하였다. 엑스분질소는 피조개, 새고막 및 고막에서 각각 479, 506 및 432 mg/100 g으로서 새고막에서 가장 높고, 고막에서 낮았으나 그 차이는 미약하였다. 유리아미노산은 고막류 3종 모두 $28{\sim}29$종의 유리아미노산이 검출되었으며, 총량은 피조개, 새고막 및 고막에서 1,966, 1,921 및 1,756 mg/100 g이었다. 고막류 3종 모두에서 공통적으로 함량이 풍부한 유리아미노산은 taurine, ${\beta}-alanine$, glutamic acid, alanine 등이었다. 고막류의 엑스분 가수분해물에서는 $23{\sim}25$종의 아미노산이 증가되었으며, 그 총량은 피조개, 새고막 및 고막에서 각각 705, 717 및 431 mg/100 g으로서 유리아미노산 총량의 35.9, 37.3 및 24.5%이었다. 고막류 3종 모두에서 ATP, ADP, AMP, IMP, inosine 및 Hypoxanthine이 검출되었으며 그 총량은 피조개, 새고막 및 고막에서 1.99, 3.03 및 $3.17\;{\mu}mol/g$이었다. Betaine류로서는 고막류 3종 모두에서 glycinebetaine, ${\gamma}-butyrobetaine$, homarine, trigonelline의 4종이 검출되었으며, 그 총량은 피조개, 새고막 및 고막에서 329, 341 및 353 mg/100 g이었다. Creatine 함량은 3종 모두 10 mg/100 g 미만으로서 미량이었다. 이상과 같이 한국 남해안에서 생산되는 고막류 3종에 대한 함질소 엑스성분 조성을 밝힐 수 있었으며, 이들 3종의 함질소 엑스성분 조성은 상호 유사한 점이 많았으나, 각 성분의 함량 면에서는 서로 차이가 있었다.

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