Production of alternariol and alternariol methyl ether by Alternaria alternata grown on fruits at various temperatures.
TOURNAS, V.H. and STACK, M.E.
Journal of Food Protection 64: 528 – 532.
2001
บทคัดย่อ
Two toxigenic strains of Alternaria alternata were grown on surface disinfected, fresh, ripe fruits and tested for the production of alternariol (AOH) and alternariol methyl ether (AME). Examined fruits included strawberries, red and green seedless grapes, concord grapes, red delicious and golden delicious apples, gala apples and blueberries. After inoculation, fruits were incubated at 4, 10 or 21oC for up to 3 weeks. A. alternata and its metabolites were not a major problem in strawberries due to presence of fast growing moulds that outgrew and possibly inhibited Alternaria. Both Alternaria strains showed limited growth on apples and AOH and AME were produced only by the ATCC 56836 strain on the golden delicious and gala varieties, (ranging from 0.1 to 5 mg/kg and 0.1 to 14 mg/kg for AOH and AME, respectively). Restricted growth of both strains without toxin production occurred in blueberries, whereas moderate growth and AOH (up to 3.336 mg/kg) and AME (up to 1,716 mg/kg) production took place in grapes.