Abstract: The disclosed are a soft drink having both an excellent fruity aroma and a fruity afteraroma once swallowed, and a method for manufacturing the same. The further disclosed are a grape skin extract, rich in precursors of 3-mercaptohexan-1-ol having good aroma, for use in manufacturing the soft drink, and to a method of preparation of the same.

Abstract: The present invention relates to a method of production of a solution containing an abundance of 3-mercaptohexan-1-ol (3MH) and alcohol and having a desirable aroma by employing a grape skin extract; an aromatic agent employing the 3MH and alcohol containing solution; a method of production of a drink with an enhanced aroma; and a method of production of fruit liquor, employing a grape skin extract. The method of production of the 3MH and alcohol containing comprising: inoculating a starting material aqueous solution comprising S-(3-hexan-1-ol)glutathione and S-(3-hexan-1-ol)-L-cysteine with a lactic acid bacterium and yeast to produce 3-mercaptohexan-1-ol and alcohol. The starting material aqueous solution comprises a grape skin extract. The lactic acid bacterium is a lactic acid bacterium that is capable of converting S-(3-hexan-1-ol)glutathione to S-(3-hexan-1-ol)-L-cysteine.

Abstract: The object of the present invention is to provide a method for manufacturing effectively fruit, fruit juice and alcoholic beverage containing a higher concentration of gamma-aminobutyric acid by a relatively simple operation. A fruit of increased gamma-aminobutyric acid content is manufactured by conducting once, or repeatedly conducting two or more times, an operation comprising anaerobic processing followed by aerobic processing of starting material fruit; and further anaerobically processing said fruit to obtain fruit of greater gamma-aminobutyric acid content than the starting material fruit. A fruit juice and an alcoholic beverage are manufactured with the fruit of increased gamma-aminobutyric acid content.