ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Efficacy of preharvest and postharvest Candida sake biocontrol treatments to prevent blue mould on apples during cold storage.

Teixido, N.; Usall, J.; Vinas, I.;

International Journal of Food Microbiology Year: 1999 Vol: 50 Issue: 3 Pages: 203-210 Ref: 34 ref.

1999

บทคัดย่อ

The biocontrol efficiency of preharvest and postharvest applied yeast cells of Candida sake to apples (cv. Golden Delicious) wounded before and after harvest and inoculated with Penicillium expansum prior to cold storage conditions in two seasons, 1994-95 and 1995-96 was compared. The establishment of populations of C. sake during this period also was determined. In both years, postharvest treatment with the antagonist resulted in significant (P<0.05) and effective control of Penicillium rot whether pre- or postharvest wounds were made. Maximum disease control achieved, in terms of incidence and severity, was greater than 80% reduction in lesion diameter and 50% reduction in the incidence of lesions. However, preharvest application of the antagonistic yeast at a concentration of 3x106 CFU/ml was less effective against Penicillium rot than postharvest treatment. No advantages in biocontrol were observed when apples were treated with the yeast antagonist both pre- and postharvest. C. sake populati

on levels during cold storage of apples receiving only preharvest application of the antagonist decreased prior and more rapidly than levels in apples receiving a postharvest application. High populations of C. sake were present in postharvest-treated apples, even after 90 days in cold storage.