ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Hinokitiol: a natural substance that controls postharvest diseases in eggplant and pepper fruits.

Fallik, E.; Grinberg, S.;

Postharvest Biology and Technology Year: 1992 Vol: 2 Issue: 2 Pages: 137-144 Ref: 11 ref.

1992

บทคัดย่อ

Hinokitiol ( beta -thujaplicin), a volatile oil extracted from the roots of Hiba arboruitae [Thujopsis dolabrata], was tested for control of postharvest decay of aubergines and peppers (Capsicum annuum). In vitro spore germination and mycelial growth of Botrytis cinerea and Alternaria alternata were inhibited by the compound, with an ED50 for spore germination of 60 micro l/litre and 100 micro l/litre for B. cinerea and A. alternata, respectively, and complete inhibiton at 100 micro l/litre and 500 micro l/litre, respectively. The ED50 for mycelial growth inhibition were 50 and 80 micro l/litre for B. cinerea and A. alternata, respectively and for complete inhibition the effective concn were 250 and 750 micro l/litre, respectively. The effective exposure time of fungal spores to hinokitiol was inversely related to the concn used, with very short exposures required for 50% inhibition of spore germination at 1000 micro l/litre hinokitiol, while up to 30-40 times longer exposures were required when10 micro l/litre were used. Postharvest decay of aubergines and peppers was considerably reduced when they were dipped in 750 micro l/litre hinokitiol.