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KMID : 1134820100390020308
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Journal of the Korean Society of Food Science and Nutrition
2010 Volume.39 No. 2 p.308 ~ p.312
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Quality Characteristics of Apple Vinegar by Agitated and Static Cultures
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Jang Se-Young
Sin Kyung-A
Jeong Yong-Jin
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Abstract
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Quality characteristics of apple vinegar by using agitated and static cultures without any additive were compared. pH was reduced with passage of acetic acid fermentation time. Total acidity of the agitated culture vinegar (A) was 6.08% at the 8 day according to the progress of fermentation and that of the static culture vinegar (B) recorded 5.20% at the 60 day of fermentation. There was no significant difference in sugar content of (A) and (B). L value was lower in (B) than (A) but a and b values were higher in (B) than (A). Organic acid content of (A) was high only in acetic acid but malic, citric and succinic acids appeared high in (B). As free sugar, fructose and glucose were observed in both of them. In sensory examination results, (B) showed the highest taste and overall preferences. From all of these results traditional static culture are expected to be used to make high-quality vinegar.
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KEYWORD
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apple, vinegar, agitated culture, static culture, acetic acid
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