The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Qualitative Properties of Wild Grape Wine having Different Aging Periods

숙성기간에 따른 머루와인의 품질적 특성

  • Kang, Byung-Tae (Dept. of Hotel Culinary Art & Baking Technology, Gimcheon College) ;
  • Yoon, Ok-Hyun (Dept. of Food & Nutrition, Gimcheon College) ;
  • Lee, Jae-Woo (Dept. of Food & Nutrition, Gimcheon College) ;
  • Kim, Soon-Hee (Dept. of Hotel Culinary Art & Baking Technology, Gimcheon College)
  • Published : 2009.12.31
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Abstract

Qualitative properties- polyphenol compounds(total phenolics, anthocyanin, flavonoids, tannins), color parameters and antioxidant activities- of wild grape wine having different aging periods were studied. The contents of total phenolics and anthocyanin decreased significantly in accordance with aging terms(p<0.05). The total phenolics and anthocyanin of the oldest wine(WG3) represented only 43% and 45% of it's related compound in the wine aged for one year(WG1), respectively. The contents and the degree of polymerization of tannins, including condensed tannins, also decreased but not showed statistically significant. However, The contents of flavonoids of the 2 year old wine(WG2) decreased significantly related to that of WG1, remaining, then, almost constant at that levels during aging. The L* values, b(yellow) values and the hue (hab) values were increased in long aged wines(WG2, WG3), while the intensity of color(CI) and, the a(red) parameter value decreased. The antiradical activity of wild grape wines was shown to be high(87 EDA%) in WG1. The corresponding coefficient of tannin concentrations with antiradical activity($r^2$=0.9189) suggests that the tannin content may be strongly related to the antioxidant properties of wild grape wines.

오크통에서 숙성기간이 다른 머루와인의 페놀 화합물 함량과 색, 항산화 활성 등을 분석하였다. 페놀 화합물의 함량은 숙성기간이 긴 머루와인일수록 감소하였는데, 그 경향은 종류에 따라 차이가 있었다. 총 페놀, 안토시아닌, 탄닌은 숙성기간이 길수록 감소하였고 플라보노이드는 숙성 2년 와인에서 크게 낮았으나 그 이후에는 차이가 없었다. 특히, 총 페놀과 안토시아닌은 유의성 있는 함량 차이를 보였다. 탄닌의 중합도와 축합된 탄닌의 함량도 숙성기간에 따라 감소하는 경향을 나타내었으나 유의성은 없었다. 와인의 명도(L*)는 숙성기간이 길수록 높아져 점차 밝은 색으로 변화하였으나 색의 강도(CI)는 감소하였는데, 대조군인 포도와인의 강도보다는 높았다. 머루와인의 적색소(a)는 감소하였고, 노란색소(b)와 색상(hab)은 점차 증가하는 경향을 보였다. 숙성기간이 1년인 머루와인의 자유라디칼 포획효과가 87% 내외로 항산화제 BHA(90%)와 Quercetin(92%)만큼 높은 활성을 나타내었다. 이러한 활성은 장기 숙성와인에서도 80% 내외를 유지하였다. 페놀 화합물의 종류별 함량과 항산화 활성의 상관관계를 회기 분석한 결과, 총 페놀, 플라보노이드, 안토시아닌, 탄닌의 상관계수($r^2$)가 각각 0.7625, 0.7005, 0.1136, 0.9189로 나타났다.

Keywords

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