Demonstration of Anti-Bacterial Activity of commonly available Fruit Extracts in Dhaka, Bangladesh

Abstract

Present study attempted to determine the antimicrobial activity of extracts from commonly consumed fruits including guava (Psidium guajava), malta (Citrus sinensis), apple (Malus domestica), orange (Citrus reticulate) and dragon fruit (Hylocereus polyrhizus) against Bacillus spp., Pseudomonas spp., Vibrio spp., Escherichia coli, Klebsiella spp., Staphylococcus spp., Listeria spp., Salmonella spp., and Aeromonas spp. Of the fruits examined, malta and orange samples were observed to be most effective against the test organisms, whereas dragon fruit was the least effective one. Among all the bacteria tested, Bacillus spp. seemed to be most susceptible to the antibacterial activity of the fruits, whereas Aeromonas spp. seemed to be the most resistant one. No significant difference in antimicrobial activity was observed among the imported and local fruit extracts.

Investigation of microbiological spoilage and demonstration of the anti-bacterial activity of the major imported fruits within Dhaka Metropolis

“…Investigation of microbiological spoilage and demonstration of the antibacterial activity of the major imported fruits within Dhaka Metropolis assay Fresh fruits are vital parts of human diet because of their multi-dimensional nutritional benefits along with the traits of being natural antioxidants and antimicrobials (1)(2)(3)(4)(5)(6). Conversely, fresh fruits may play role as potential vehicles for the transmission of bacterial, parasitic and viral pathogens to the consumers ultimately leading to the possibility of the onset of food borne diseases (5)(6)(7)(8)(9)(10).…”

“…Conversely, fresh fruits may play role as potential vehicles for the transmission of bacterial, parasitic and viral pathogens to the consumers ultimately leading to the possibility of the onset of food borne diseases (5)(6)(7)(8)(9)(10). Earlier studies with fresh fruits and vegetables revealed the huge growth and proliferation of huge bacteria and fungi, especially of Staphylococcus spp., Pseudomonas spp., Listeria monocytogenes, Escherichia coli, Salmonella spp., Vibrio spp.…”

“…and Aeromonas spp. (5,6,9,(11)(12)(13). Such microbial contamination in fresh produces has been observed to take place from human, animal and environmental sources during growth, harvesting, transportation and also due to the unhygienic processing and handling of the products (5,6,8,9).…”

“…Therefore, a complete microbiological profiling of fresh fruits may be useful for the consumer safety. Earlier studies on alcoholic extracts of local and imported fruits and as well as on local fruit blends revealed the strong antimicrobial traits of fruits, further necessitates to study on imported fruits blends to investigate antibacterial activity and also their microbiological profile (5,6).…”

“…In this context, earlier we examined the anti-bacterial activity of the crude blends of the local fruits, and of the alcoholic extracts of both local and imported fruits randomly collected within Dhaka metropolis (5,6). Both the studies revealed a huge number of microorganisms within the samples tested and conversely significant antibacterial traits were also noticed.…”