Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Processing of Leaflike and Powder Tea Using Sea Tangle

다시마를 이용한 엽상 및 분말차 개발

  • 배태진 (여수대학교 식품공·영양학부) ;
  • 곽지만 (여수대학교 식품공·영양학부) ;
  • 김해섭 (여수대학교 식품공·영양학부) ;
  • 김귀식 (여수대학교 식품공·영양학부)
  • Published : 2002.02.01
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Abstract

To summarize our interpretation of the results, we can explain shown below. Optimum con dictions in order to soften of sea tangle leafs were treated in the solutions of 0.05% $CH_3$COOH at 9$0^{\circ}C$ for 0.5 hour, 0.2% $K_2$HPO$_4$at 10$0^{\circ}C$ for 0.5 hour and 0.3% NaHCO$_3$at 10$0^{\circ}C$ for 0.5 hour. After sea tangle leafs were treated in the solutions of 0.05% $CH_3$COOH at 9$0^{\circ}C$ for 0.5 hour and added 10% seasoning agent of 0.5% glutamic acid, 3% glycine, 5% sorbitol and 1.5% soy sauce. Contents of free amino acid in the leaflike tea were a large amount as alanine of 707.2 $\mu$mo1/100$m\ell$ and glutamic acid of 343.6 $\mu$mo1/100 $m\ell$. And contents of mineral were order Na of 49.38 ppm, Mg of 10.72 ppm, K of 10.56 ppm and Ca of 6.55 ppm. Powder tea was added 0.05% glutamic acid, 5% glycine, 5% glucose and 4% sodium chloride in sea tangle powder, and then pressure treatment at 11$0^{\circ}C$ for 1.5 hours. Contents of free amino acid in the powder tea were a large amount as glycine of 222.04 $\mu$mo1/100$m\ell$ and glutamic arid of 208.58 $\mu$mol/100$m\ell$. And contents of mineral were order Na of 104.24 ppm, Mg of 14.31 ppm, K of 9.68 ppm, Fe of 2.36 ppm, Ca of 2.00 ppm, Zn of 0.13 ppm, Cu of 0.10 ppm and Mn of 0.01 ppm.

다시마의 조체 연화와 유용성분 추출 방법을 검토하여 다시마를 이용한 엽상 및 분말차 제조를 검토하였다. 다시마 엽체 연화를 위하여 0.05% 초산용액의 9$0^{\circ}C$에서 0.5시간, 0.2% 제2인산칼륨용액의 10$0^{\circ}C$에서 0.5시간, 0.3% 탄산나트륨용액의 10$0^{\circ}C$에서 0.5시간 자숙처리하는 것이 적당하였다. 그리고 0.05% 초산용액의 9$0^{\circ}C$서 0.5시간 자숙하여 엽체를 연화시키고 조미첨가제로서 0.5% glutamic acid, 3% glycine, 5% sorbitol 및 1.5% soy sauce를 다시마 중량에 대하여 10% 첨가하여 약한 불에서 1시간 졸여서 제조한 엽상차가 관능검사에서 씹힘성, 단맛, 향 및 색택이 가장 우수하게 평가되었다. 엽상차 액의 유리아미노산 함량은 alanine이 707.2 $\mu$mo1/100 $m\ell$로 가장 많이 함유되어 있었으며, 그 다음으로 glutamic acid가 343.6 $\mu$mo1/100 $m\ell$이었고, 무기성분은 Na이 49.378 ppm으로 가장 많았으며, 다음으로 Mg 10.72 ppm, K 10.56 ppm 및 Ca 6.55 ppm 순이었다. 11$0^{\circ}C$에서 1.5시간 가압처리한 다시마 분말의 용출액이 점도가 가장 낮아 1.73 cP이었고 총고형물 및 회분함량은 가장 높아 각각 2.22% 및 1.48% 이었다. 여기에 0.05% glutamic acid, 5% glycine, 5% glucose 및 4% sodium chloride를 첨가하여 분말차로 제조하였고, 분말차 2g을 9$0^{\circ}C$에서 10분간 우려낸 물의 유리 아미노산 중 glycine이 222.04 $\mu$mo1/100 $m\ell$로 가장 많이 함유되었고 그 다음으로 glutamic acid는 208.58 $\mu$mo1/100 $m\ell$이었다. 그리고 무기성분으로는 Na이 104.24 ppm으로 가장 많은 양이 함유되어 있었으며, 다음으로 Mg 14.31 ppm, K 9.68 ppm, Fe 2.36 ppm, Ca 2.00 ppm, Zn 0.13 ppm, Cu 0.10 ppm 및 Mn 0.01 ppm의 조성을 보였다.

Keywords

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