Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Flavor Constituents in Enzyme Hydrolysates from Shore Swimming Crab and Spotted Shrimp

민꽃게 및 꽃새우 효소가수분해물의 풍미발현성분

  • 오광수 (경상대학교 해양생물이용학부 및 해양산업연구소) ;
  • 강수태 (부경대학교 식품생명공학부) ;
  • Published : 2001.10.01
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Abstract

For the developing natural fisheries flavoring substances using crustacea, the flavor constituents of enzyme hydrolysates from shore swimming crab (crab) and spotted shrimp (shrimp) were investigated. In taste-active compounds of both enzyme hydrolysates, total free amino acid contents of crab and shrimp enzyme hydrolysates were 5,226.7 mg% and 8,757.3 mg%, respectively. The major amino acids were taurine, glutamic acid, proline, asparagine, glycine, alanine, valine, leucine, lysine anserine and arginine. As for ATP related compounds, AMP was the principal component and small amounts of IMP was detected in both enzyme hydrolysates. In the quarternary ammonium bases, betaine was the principal component (593.8mg%), and contents of TMAO and betaine in both samples were 60.7 mg% and 850.0 mg%, 124.1 mg% and 755.9 mg%, respectively. The major components were Na, K, P and Cl in inorganic ions. The major fatty acids of both sample were 14 : 0, 16 : 0, 16 : 1n7, 18 : 1n9, 20 : 5n3 and 22 : 6n3, and composition ration of n3 polyunsaturated fatty acids of were 27.8% and 28.5%, respectively. Total 99~109 volatile compounds were detected as a cooked odor of crab and shrimp enzyme hydrolysates by SDE apparatus/gas chromatography/mass spectrometry. The volatile flavor compounds identified from cooked crab enzyme hydrolysate were composed of 6 acids, 10 alcohols, 7 aldehydes, 11 ketones, 1 ester, 5 phenols, 4 benzenes, 22 hydrocarbons, 1 furan, 21 nitrogen containing compounds and 11 micellaneous compounds. And the volatile flavor compounds indentified from cooked shrimp enzyme hydrolysate were composed of 13 acids, 10 alcohols, 6 aldehydes, 10 ketones, 3 esters, 2 phenols, 5 benzenes, 36 hydrocarbons, 1 furan, 14 nitrogen containing compounds and 8 micellaneous compounds.

인간의 기호에 바람직한 풍미를 지니고 있는 갑각류의 풍미발현성분을 살펴보기 위해 민꽃게와 꽃새우를 시료로 하여 효소가수분해물을 조제하고, 이들의 정미성분 및 자숙취성분을 분석하였다. Body effect로서 맛 및 조직감에 영향을 미치는 것으로 알려져 있는 구성지방산의 조성은 민꽃게와 꽃새우 생시료의 경우 양자가 서로 비슷하여, 모두 16 : 0, 16 : 1n7, 18 : 0, 18 : 1n9, 20 : 5n3및 22 : 6n3 등이 주요 구성지방산이었고, n3계열의 고도불포화지방산의 조성비도 각각 27.75% 및 28.46%로서 서로 비슷하였다. 민꽃게와 꽃새우 효소가 수분해물의 유리아미노산 총량은 각각 5,226.7 mg% 및 8,757.3 mg% 및 8,757.3 mg%이었고, 주요 유리아미노산은 양 시료 모두 taurine, asparagine, glutamic acid, glycine, alanine, isoleucine, leucine, phenylalanine, lysine 및 arginine의 함량이 많았고, dipeptide인 anserine도 비교적 많이 함유되어 있었다. 대부분의 아미노산이 꽃새우 쪽에 많이 함유되어 있었으며, 특히 asparagine, lgutamic acid 및 proline 등은 꽃새우 쪽에 2배 이상 함유되어 있었다. 그리고 수산무척추동물 엑스분의 상쾌한 맛의 주성분인 betaine 함량은 각각 850.0 mg% 및 755.9 mg%로 다량 함유되어 있었다. ATP관련물질 중 AMP의 함량이 약간 많았으나, 양시료 모두 정미발현에 큰 영향을 주지는 못할 정도였다. 무기이온성분으로는 양시료 모두 Na, K, P 및 Cl 이온이 양적으로 많았으며, 그외 Ca 이온도 비교적 많이 함유되어 있었다. 민꽃게 효소가수분해물의 자숙취 성분은 acid류 6종, alcohol류 10종, aldehyde류 7종, ketone류 11종, ester류 1종, phenol류 5종, benzene류 4종, hydrocarbon류 22종, furan류 1종, 함질소화합물 21종 및 기타 11종으로 구성되어 있었고, 계수적인 측면에서 가장 많은 종류의 화합물은 alkane류를 위주로 한 hydrocarbon류 및 pyrazine류 5종, hydrocarbon류 36종, furan류 1종, 함질소화합물 14종 및 기타 8종이 동정되었다.

Keywords

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