Journal of Agricultural Science and Botany

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Research Article - Journal of Agricultural Science and Botany (2019) Volume 3, Issue 1

Growth Inhibitory Activity of Extracts from Peels of Five Species of Citrus Fruit against Bacterial Isolates of Rotten Tomato Fruits

This study was undertaken to verify the efficacies of phytochemical extracts of citrus fruit peels obtained from Citrus sinensis, Citrus reticulata, Citrus limonum, Citrus aurantifolia and Citrus vitis against isolates of tomato rot bacteria. The result of this study is necessary to provide the much needed less hazardous, cheap and readily available means of controlling or managing bacterial diseases of postharvest tomato fruits to reduce the huge economic losses often incurred by tomato fruits dealers and farmers. Phytochemical extraction was carried out, and the extracts were characterized for presence of constituent active compounds, flavonoids, tannins, terpenes, cardiac glycosides, anthraquinones, saponins and alkaloids. Pseudomonas spp., Klebsiella spp. and Escherichia coli were isolated from rotten tomato fruits using McConkey, Blood and Peptone Sucrose agar media. The bacterial isolates were subjected to sensitivity test with10%, 20%, 30% and 40% concentrations (volume by volume) of the different extracts, respectively. All the concentrations showed different degrees of growth inhibition on the test organisms implying that phytochemical extracts from peels of citrus fruits are efficacious against tomato fruit rot bacteria and therefore have a good promise for sustainable control of bacterial rot disease of tomato fruits

Author(s): Effiom OE*, Ozoude TO, Olushola TO, Ubi PO, Okey-Ndeche FN, Iboh CI

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