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Physicochemical Composition of Capsosiphon fulvescens According to Drying Methods

건조방법에 따른 매생이의 이화학적 성분

  • Son, Seok-Min (Dept. of Food and Biotechnology, Hoseo University) ;
  • Kwon, Han-Ol (Dept. of Food Science and Engineering, Daegu University) ;
  • Lee, Jun-Ho (Dept. of Food Science and Engineering, Daegu University)
  • 손석민 (호서대학교 식품생물공학과) ;
  • 권한올 (대구대학교 식품공학과) ;
  • 이준호 (대구대학교 식품공학과)
  • Received : 2011.08.23
  • Accepted : 2011.10.26
  • Published : 2011.11.30

Abstract

Caposiphon fulvescens was dried by the hot-air (50$^{\circ}C$), vacuum (50$^{\circ}C$), and freeze drying methods. The green alga contained high proportions of carbohydrates (38.10~41.54%), ash (31.86~33.28%), and crude proteins (17.46~23.03%) regardless of the drying methods used to prepare the sample. The total sugar contents of the hot-air and vacuum dried samples were higher than that of the freeze dried sample (p<0.05). Vitamin C content of the freeze dried sample was higher than that of either the hot-air or vacuum dried samples (p<0.05). The major amino acids were glutamic acid, proline, and aspartic acid, which amounted to 33.34~34.80% of the total amino acid content depending on the drying methods used. Total mineral content of either the hot-air or vacuum dried samples was significantly higher than that of the freeze dried sample (p<0.05). Regardless of the drying methods, Na, K, Mg, Ca, and P were the most abundant elements in the samples while trace elements were identified as Fe, Mn, Zn, and Cu.

매생이를 열풍, 진공 및 동결건조법을 이용해 건조하고 이들 건조방법이 건조 매생이의 이화학적 성분에 미치는 영향을 조사하였다. 일반성분 중 가장 많이 함유하고 있는 성분은 건조방법과 무관하게 탄수화물(38.10~41.54%)이었으며, 다음으로 조회분(31.86~33.28%), 조단백질(17.46~23.03%), 수분(4.14~6.25%) 및 조지방(1.01~1.51%) 순으로 나타났다. 열풍건조 시료의 총당 함량이 19.53%로 가장 높게 나타났으며(p<0.05), 다음으로 진공건조 시료가 19.22%, 동결건조 시료가 18.18% 순으로 나타났다. 열풍건조 시료의 비타민 C 함량은 진공건조 시료와 유의적인 차이가 없었지만(p>0.05), 동결건조 시료보다는 유의적으로 낮은 값을 나타내었다(p<0.05). 열풍건조 시료 중 가장 많이 함유하고 있는 아미노산은 glutamic acid, 다음으로 proline, aspartic acid 순으로 나타났고, 이들 세 가지 구성아미노산의 합은 건조방법에 따라 전체 아미노산의 33.34~34.80%를 차지하고 있는 것으로 나타났다. 매생이 건조방법별 무기성분 총 함량은 열풍 및 진공건조 시료가 동결건조 시료보다 월등히 많은 무기성분을 함유하고 있는 것으로 나타났다(p<0.05). 또한 다량 함유하고 있는 무기성분은 건조방법과 무관하게 Na, K, Mg, Ca, P 순으로 나타났고 그 밖에 미량 무기성분으로 Fe, Mn, Zn, Cu 등을 함유하고 있는 것으로 나타났다.

Keywords

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