국산 포도로부터 분리 된 Saccharomyces cerevisiae MM10, SS89 그리고 SS812 균주를 전체원료의 15%에서 배양하여 얻은 균체를 24 로 동결농축한 사과액에 접종하여 무가당 사과주를 양조하였다. 발효 중 환원당은 대조균주와 비교 시 완만한 감소를 나타내었고, 총산은 모든 효모군에서 알코올 발효가 진행될수록 증가하였다. 최종 알코올 함량은 모든 효모군에서 12~13%의 함량을 나타내었다. 사과주의 유기산 함량의 범위는

In this study, the good brewing conditions for the 24 freeze-concentrated apple wine were investigated. The four selected Saccharomyces cerevisiae strains MM10, SS89, SS812, and WW108, could ferment quickly when brewed with high sugar levels. During the fermentation, the reducing sugar contents slowly declined while the total acid in all the yeasts increased and the final alcohol content was 12-13%, a typical wine's alcohol content. The viable counts were shown to be 6-6.8 log cfu/ml. During the fermentation, the organic acid content was shown to be within the range of 2.36-3.11%, and the free sugar content, except for the SS89 and WW108 strains, was shown to consist only of sorbitol, although fructose was somewhat detected in the SS89 and WW108 strains. Methanol was not detected, or only a trace of it was detected, and the aldehyde content was 107.68-114.27 ppm. As for the fusel oil contents, a trace of propanol was detected. Isobutanol and butanol were present in 40.16-54.65 and 25.47-27.73 ppm, respectively. The isoamy1 alcohol content was shown to be the highest (108.88-217.26 ppm). The final total phenolic compounds were shown to be 0.1-0.16%. The final Hue values were shown to be 1.3-3.6, and the final intensity was 0.1-0.45. The lightness (L) was within the range of 91.78-98.51, the redness (a) was at a neutral position at red and green, and the yellowness (b) was within the range of 2.38-7.7. In the sensory evaluation, the SS812 strain was found to be the best in terms of color, the SS89 strain in terms of odor, and the WW108 strain in terms of taste. Overall, SS812 was found to be the best apple wine.

• 최상훈
• 최윤정
• 이아롱
• 박선아
• 김동현
• 백성열
• 여수환
• 이창호
• 박희동