Change of Takju Qualities during the Second Brewing Process by Addition of

This study was conducted to examine the possibility of improvement effect in Takju mash added with ${\alpha}G-Hesperidine$ on the second stage mash. Alcohol was highly generated in comparison with the control on fermentation time in case of the ${\alpha}G-Hesperidine$ on the second stage mash. Reducing sugar was also highly produced after 2 days on the second stage, and amount of reducing sugar was indicated to be decreased between $4\~6$ days. Total acidity was shown not to be practically changed after 2 days in mash added with ${\alpha}G-Hesperidine$ on the second stage in comparison with the control. Fusel oil produced from mash added with ${\alpha}G-Hesperidine$ was less generated in comparison with the control. Yeast growth on the mash added with ${\alpha}G-Hesperidine$ was revealed to be highly in comparison with the control through fermentation periods. Precipitation velocity of suspension in mash added with ${\alpha}G-Hesperidine$ was shown to be 1.5 times lower than that of the control. Precipitation amount in mash added with ${\alpha}G-Hesperidine$ was not nearly changed on the storage time. The astringency and bitterness were slightly decreased, while on the other turbidity and refreshing were increased in mash added with ${\alpha}G-Hesperidine$. In general overall preferences was indicated to be fully satisfied in mash added with ${\alpha}G-Hesperidine$ in comparison with the control. Nasty smell of Takju added with ${\alpha}G-Hesperidine$ was recognized after 6 days during storage.

탁주 2단 담금시 의 주질 변화

2단 담금시 ${\alpha}G$-헤스페리딘에 대한 막걸리의 주질 개선 효과 가능성 여부를 검토하였다. 알코올 생성량이 대조구보다 증가하였으며 경시적으로 생성량에는 큰 차이를 나타내었다. 환원당은 ${\alpha}G$-헤스페리딘을 첨가한 경우2담 담금2일째는 많은 양의 환원당이 생성되었으나 4일-6일 사이에는 감소하였다. ${\alpha}G$-헤스페리딘 첨가의 경우산도는 담금2일째 이후에는 거의 변화하지 않았다. 또 ${\alpha}G$-헤스페리딘을 첨가한 경우 fusel oil의 생성이 적게 일어났다. 효모는 ${\alpha}G$-헤스페리딘의 경우에 발효 전기간 동안 효모증식이 잘 이루어졌다. 저장 중 막걸리의 침전속도는 ${\alpha}G$-헤스페리딘을 첨가한 경우는 대조구에 비해서 거의 1.5배 낮은 속도로 침전되었으며 침전량은 경시적으로 거의 변화하지 않았다. ${\alpha}G$-헤스페리딘을 첨가한 경우 막걸리의 떫은맛과 쓴맛은 다소 감소하고 탁도, 신선함은 대조구보다 높은 것으로 나타났다. 전체적인 기호도는 대조구보다 ${\alpha}G$-헤스페리딘을 첨가한 것이 좋은 것으로 나타났다. 막걸리는 저장 중 발생하는 이취는 ${\alpha}G$-헤스페리딘을 첨가한 경우 저장 6일째부터 감지되었다.