한국산 고구마 품종으로 제조한 고구마소주의 향미의 특성

다국어 초록 (Multilingual Abstract)

Four types of koguma-soju, sweet potato-distilled liqior, were prepared using Korean sweet potato cultivar, namely Shingunmi, Jinhongmi, Daeyumi, and Hayanmi, The mono-terpene alcohol (MTA) concentrations and flavor properties of koguma-soju were analyzed. The general properties of the MTA concentrations were as follows; nerol concentration was the lowest of the five MTAs with a range of approximately 14.2-15.8 ㎍/L, geraniol and citronellol concentrations were approximately 41.90-50.75 ㎍/L, linalool concentrations were 43.20 ㎍/L and 45.15 ㎍/L in Shingunmi and Jinhongmi koguuma-soju, respectively, and 93.2 ㎍/L and 96.05 ㎍/L in Daeyumi and Hayanmi koguma-soju, respectively, and the α-terpineol concentration was the highest of the five MTAs, with a range of 177.5-218 ㎍/L in the four types of koguma-soju. These results were different from the MTA concentrations in Imo-shochu, Japanese sweet potato-soju as the nenol concentration of Korean koguma-soju was lower than that of Imo-shochu, and the α-terpineol concentration was higher than that of Imo-shochu.
Flavor evaluation tests revealed that the koguma-soju prepared from the Shingunmi variety had a floral, roasted flavor and rough, sweet, bitter taste, whereas the Jinhongmi-koguma-soju was characterized by a floral, fruity, soapy, brown sugar-like flavor and sweet, pungent taste. Green leaf-like, aldehyde-like flavor and astringent, dry taste were predominant in the Daeyumi koguma-soju, while the Hayanmi koguma-soju had either a vegetable-like, woody, citrus-like flavor and sour, body taste. This study suggested that koguma-soju prepared from different sweet potato cultivars have unique characteristic flavors because they contain different ratios of MTAs.

참고문헌 (Reference)

1 김명희, "한국산 고구마 품종인 연미, 증미, 신천미, 신율미를 이용하여 제조한 고구마 소주의 향기성분의 특성" 한국식품과학회 47 (47): 51-55, 2015

2 박정섭, "고구마 품종과 국의 종류를 달리하여 제조한 고구마 소주의 특성 및 향기성분" 한국식품과학회 42 (42): 468-474, 2010

3 高峯和則, "감압증류법의 고구마소주 제조를 위한 식이섬유 분해효소의 선별" 한의병리학회 26 (26): 35-39, 2012

4 Takamine, K., "The contribution factor for flavor of sweetpotato shochu" 103 (103): 601-606, 2008

5 Han, S. K., "Quality and starch properties of sweetpotato cultivated at different regions" Chonnam National University 2012

6 Somogyi, M., "Notes on sugar determination" 195 : 19-23, 1952

7 Takamine, K., "Isolation of shochu yeast from soil and its application in shochu making on an indusrial scale" 105 (105): 546-555, 2010

8 Kamiwatari, T., "Effects of sweetpotato cultivar on the quality of Imo-shochu with references to the characteristic flavor" 104 (104): 437-445, 2006

9 Jung, S. T., "Development of distillation type soju from sweet potato. Agriculture, Forestry and Fisheries R&D report" Ministry of Agriculture and Forestry 125-254, 1996

10 Kamiwatari, T., "Content of mono-terpene alcohols in stressed sweet potatoes and the flavor property of Imo-shochu" 100 (100): 520-526, 2005

11 김혜련, "Characterization of Yakju Brewed from Glutinous Rice and Wild-Type Yeast Strains Isolated from Nuruks" 한국미생물·생명공학회 20 (20): 1702-1710, 2010

12 Ohta, T., "Characteristic Flavor of Kansho-shochu(Sweet Potato Spirit)" 86 (86): 250-254, 1991

13 Nelson, N., "A photometric adaptation of the somogyi method for the determination of glucose" 153 : 375-380, 1944