In vitro activity of glucosinolate-derived isothiocyanates against postharvest fruit pathogens.
Mari, M.; Iori, R.; Leoni, O.; Marchi, A.;
Annals of Applied Biology Year: 1993 Vol: 123 Issue: 1 Pages: 155-164 Ref: 17 ref.
1993
บทคัดย่อ
The ability of some reaction products, essentially isothiocyanates, derived from the myrosinase-catalysed hydrolysis (neutral pH) of 6 natural glucosinolates to inhibit germination and mycelial growth of Botrytis cinerea, Rhizopus stolonifer, Monilinia laxa, Mucor piriformis and Penicillium expansum, the major postharvest pathogens of fruit and vegetable crops, was evaluated. All of the tested products showed antifungal activity, although they were less effective against mycelial growth than in germination control. The isothiocyanates produced by enzymatic hydrolysis of glucoraphenin, sinalbin and sinigrin were particularly effective, and completely inhibited conidial germination of all 5 pathogens considered. The sinigrin-derived isothiocyanate exhibited a wide pathogen-control spectrum, either inhibiting conidial germination altogether or delaying by 3-6 d the onset of mycelial growth compared with the control.