Effect of postharvest heat treatment of tomatoes on fruit ripening and decay caused by Botrytis cinerea.
Fallik, E.; Klein, J.; Grinberg, S.; Lomaniec, E.; Lurie, S.; Lalazar, A.;
Plant Disease Year: 1993 Vol: 77 Issue: 10 Pages: 985-988 Ref: 23 ref.
1993
บทคัดย่อ
Holding inoculated mature green and pink tomato fruits for 3 d at 38 deg C completely inhibited decay caused by B. cinerea. Conidial germination was more sensitive than mycelial growth to 38 deg , but inhibition of both processes increased with duration of treatment. It is suggested that the prophylactic effect of heating on decay of tomatoes caused by B. cinerea appeared to be by direct interaction with the fungus rather than by inhibitory effects on fruit ripening. Carbon dioxide production by tomatoes increased and ethylene production decreased during heating, but when fruit were moved to 20 deg , gas evolution rates returned to those of nonheated fruit. Heating did not affect tomato firmness, colour, soluble solids content or acidity by the end of 7 d at 20 deg . It is concluded that prestorage heating may be a useful nonchemical method of controlling postharvest pathogens.