Effect of short anoxia exposure on metabolic changes of persimmon fruits (Diospyros kaki L.)

摘要: Pollination constant and astringent (PCA) persimmon fruits (Diospyros kaki L.) cvs. Fuji Hachiya were treated in an atmosphere comprised only of CO 2 or N at 20°C for 24 hours then returned to normal (air) conditions 1°C. Untreated (control) samples kept stored The concentration acetaldehyde increased during treatment more so with than . After two days had accumulated greater amounts ethanol Anaerobic promoted astringency removal fruits. Faster was observed -treated fruits, but caused internal browning. ratio between polymeric (water insoluble) oligomeric (soluble) polyphenols correlated the degree astringency. Total phenols oligo- molecules tannin decreased treatment.