บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Differences in solubilities of tannins after six treatments for removal of astringency in persimmon fruit.

Taira, S.; Matsumoto, N.; Ono, M.;

Journal of the Japanese Society for Horticultural Science Year: 1999 Vol: 68 Issue: 1 Pages: 83-88 Ref: 10 ref.

1999

บทคัดย่อ

Differences in solubilities of tannins after six treatments for removal of astringency in persimmon fruit.

 

The solubility of tannins following treatment for removing astringency in persimmon fruits was compared using HCl in methanol at different concentrations and temperatures. The relationship between tannin solubility and acetaldehyde concentration in the flesh was also examined. Treatment of fruits with acetaldehyde vapour, postharvest treatment with ethanol vapour, and freezing and thawing, resulted in tannins with low, intermediate and high solubility, respectively. The solubility of tannins decreased with time after the removal of astringency; residual tannins were highest in fruits with high acetaldehyde concentrations.