Effect of Essential Oils on the Growth of Fusarium verticillioides and Fumonisin Contamination in Corn
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- 作者：Pascal Fandohan ; Joachim D. Gbenou ; Benoit Gnonlonfin ; Kerstin Hell ; Walter F. O. Marasas ; and Michael J. Wingfield
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2004
- 出版时间：November 3, 2004
- 年：2004
- 卷：52
- 期：22
- 页码：6824 - 6829
- 全文大小：116K
- 年卷期：v.52,no.22(November 3, 2004)
- ISSN：1520-5118
文摘
Essential oils extracted by hydrodistillation from local plants in Benin, western Africa, and oil fromseeds of the neem tree (Azadirachta indica) were evaluated in vitro and in vivo for their efficacyagainst Fusarium verticillioides infection and fumonisin contamination. Fumonisin in corn was quantifiedusing a fluorometer and the Vicam method. Oils from Cymbopogon citratus, Ocimum basilicum, andOcimum gratissimum were the most effective in vitro, completely inhibiting the growth of F. verticillioidesat lower concentrations over 21 days of incubation. These oils reduced the incidence of F. verticillioidesin corn and totally inhibited fungal growth at concentrations of 8, 6.4, and 4.8 
L/g, respectively, over21 days. At the concentration of 4.8 L/g, these oils did not affect significantly fumonisin production.However, a marked reduction of fumonisin level was observed in corn stored in closed conditions.The oils adversely affected kernel germination at 4.8 L/g and therefore cannot be recommendedfor controlling F. verticillioides on stored corn used as seeds, when used at this concentration. Theoil of neem seeds showed no inhibitory effect but rather accelerated the growth of F. verticillioides.Keywords: Corn; Fusarium verticillioides; fumonisin; essential oils; Cymbopogon citratus; Ocimumbasilicum; Ocimum gratissimum
L/g, respectively, over21 days. At the concentration of 4.8 L/g, these oils did not affect significantly fumonisin production.However, a marked reduction of fumonisin level was observed in corn stored in closed conditions.The oils adversely affected kernel germination at 4.8 L/g and therefore cannot be recommendedfor controlling F. verticillioides on stored corn used as seeds, when used at this concentration. Theoil of neem seeds showed no inhibitory effect but rather accelerated the growth of F. verticillioides.Keywords: Corn; Fusarium verticillioides; fumonisin; essential oils; Cymbopogon citratus; Ocimumbasilicum; Ocimum gratissimum