Authors :
Fajinmi, O. B., Oduntan O. A; Oduntan, O.O; Babalola, O.S; Igwe, H.C; Egbekunle, K.O; Awe, F.E; Olabode, I.A; AfolayanS.O ; Kenneth-obosi. O
Volume/Issue :
Volume 5 - 2020, Issue 11 - November
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/33m2fFk
Abstract :
Irvingia wombolu fruit is an economically
important but underutilized fruit in Nigeria. Only the
seed kernel of the fruit is of economic value as food and
income source to the people, while the fruit peel and pulp
are wasted. This study determined the yield weight of
the ethanol and aqueous extracts of dried fruit peel and
pulp of I. wombolu and also evaluated their antifungal
activities against Fusarium oxysporun f.sp. lycopersicum
(a wilt causing pathogen in tomato) In-vitro at three
levels of concentrations. The control
experiments were sterile water and a synthetic fungicide.
Each treatment and control was replicated thrice in a
Complete Randomized Design. Data were taken of the
radial mycelia growth of the pathogen at 24 hours
interval for 96 hours. The results showed that the
aqueous yield weights of the fruit peel and pulp extracts
were higher than that of the ethanol extracts. All the
extracts significantly reduce the radial mycelia
growth of the pathogen at varied levels compared with
the negative control (sterile water) especially as from 48
hours of incubation. Antifungal activities of ethanol
extract of the fruit pulp at all concentrations were
comparable with the synthetic fungicide used. Aqueous
extracts of the fruit peel and pulp were as effective
against the pathogen as the fungicide only at
concentration. The antifungal property of the fruit peel
and pulp of Irvingia wombolu should be exploited as a
possible natural fungicide which is ecologically friendly
and safe for use.
Keywords :
Antifungal activity; extract yield weight; Irvingia wombolu; peel and pulp extracts; radial mycelial growth.
Irvingia wombolu fruit is an economically
important but underutilized fruit in Nigeria. Only the
seed kernel of the fruit is of economic value as food and
income source to the people, while the fruit peel and pulp
are wasted. This study determined the yield weight of
the ethanol and aqueous extracts of dried fruit peel and
pulp of I. wombolu and also evaluated their antifungal
activities against Fusarium oxysporun f.sp. lycopersicum
(a wilt causing pathogen in tomato) In-vitro at three
levels of concentrations. The control
experiments were sterile water and a synthetic fungicide.
Each treatment and control was replicated thrice in a
Complete Randomized Design. Data were taken of the
radial mycelia growth of the pathogen at 24 hours
interval for 96 hours. The results showed that the
aqueous yield weights of the fruit peel and pulp extracts
were higher than that of the ethanol extracts. All the
extracts significantly reduce the radial mycelia
growth of the pathogen at varied levels compared with
the negative control (sterile water) especially as from 48
hours of incubation. Antifungal activities of ethanol
extract of the fruit pulp at all concentrations were
comparable with the synthetic fungicide used. Aqueous
extracts of the fruit peel and pulp were as effective
against the pathogen as the fungicide only at
concentration. The antifungal property of the fruit peel
and pulp of Irvingia wombolu should be exploited as a
possible natural fungicide which is ecologically friendly
and safe for use.
Keywords :
Antifungal activity; extract yield weight; Irvingia wombolu; peel and pulp extracts; radial mycelial growth.
