초록

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Abstract ▼ AI-Helper

The manufacture of vinegar provides a means of utilizing the juices of many fruits and various kinds of cereals as well as of starchy vegetables. However, no successful attempt has been made to utilize the glutinous rice powder, which is discussed from the Mi Gwa (made of glutinous rice) making, for...

The manufacture of vinegar provides a means of utilizing the juices of many fruits and various kinds of cereals as well as of starchy vegetables. However, no successful attempt has been made to utilize the glutinous rice powder, which is discussed from the Mi Gwa (made of glutinous rice) making, for the manufacture of vinegar. After alcoholic fermentation of the glutinous rice power, it was devided to ferment the liquor to vinegar and to examine factors affecting this fermentation. A laboratory typed vinegar generator was used to convert the alcohol in fermented liquor to acetic acid. Recycling of the fermented liquor through the generator was found essential in this process. Among many strains of Acetobacter cultures used, which was selected from ordinary home made vinegar from all over the Korea, Acetobacter No. Aa-97 proved more efficient for this fermentation. Addition of 1％ phosphate (K$_2$HPO$_4$) and 20％ apple cider vinegar. to the fermented liquor increased both the rate and efficiency of acetic acid fermentation.