the wine into vinegar. The course of fermentation (particularly the nature of by-products) and the c ... . – Grape juice (must) prepared by pressing grapes from an ordinary Korean market was fermented into wine ... kins as wild yeast. Hye-Hyeun Han, Tak-soo Lee, Ju-hee Choi, Jee-un An, Sung-moo Park, Hyun-min Lee