The Qualities and Functionalities of the Fermentation Broth of Fruits, Vegetables and Medicinal Herbs

과일, 야채 및 한약재 발효액의 품질과 기능성에 대한 연구

  • Baik, Kyung-Yeon (Dept. of Food Science and Technology, Food Industrial Technology, Catholic University of Daegu) ;
  • Kim, Duck-Hee (Dept. of Hotel Cooking & Beverages, DaeGu Health College)
  • 백경연 (대구가톨릭대학교 식품외식산업학부 식품공학전공) ;
  • 김덕희 (대구보건대학 호텔조리과)
  • Published : 2007.06.30

Abstract

This study were investigated the changes in chemical components, quality characteristics of the fermented broth, and physiological functionality during fermentation period of fruit, vegetables, and medicinal herbs. pH and $^{\circ}$Bx gradually decreased and the viscosity increased. The chromaticity of L, a, and b all increased. The total number of germs dropped from $10^5{\sim}10^6\;to\;10^2{\sim}10^3$ CFU/ml, and that of lactobacilli also decreased noticeably. According to the result of the effect on fat oxidation, a very low level of TBARS was shown. After thirty days of fermentation, the amount of each fermentation broth increased more or less, but as it declined considerably after ninety days, it was found that the binding effect of $Fe^{2+}$ ion was small and insignificant. The electron donating ability, though not reaching 0.5% ascorbic acid, showed a high level of activity from $33.71{\sim}72.15%$ before fifteen days and $44.76{\sim}75.20%$ ninety days after fermentation. Among them, the fruit fermentation solution showed the highest activity. It was also found that the organic functions for each fermentation broth decreased more or less depending on the fermentation period and the thirty-days-old fermentation broth were favored most. On the basis of the above experiment results, it can be concluded that the optimum fermentation period for fruit, vegetables, and medicinal herb is thirty to ninety days.

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