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Open AccessArticle

Antimicrobial Activity of Selected Banana Cultivars Against Important Human Pathogens, Including Candida Biofilm

1
Department of Biology, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
2
Plant Physiology and Biochemistry, Universidade Federal de São João Del-Rei, Av. Sebastião Gonçalves Coelho, 400-Chanandour, 35501-296 Divinópolis, MG, Brazil
3
Mayurbhanj Biological Research (MBR), Bhanjpur, Baripada, 751002 Odisha, India
4
International Institute of Tropical Agriculture, Arusha 447, Tanzania
5
Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, Katholieke Universiteit Leuven, 3001 Leuven, Belgium
6
Bioversity International, 3001 Leuven, Belgium
*
Author to whom correspondence should be addressed.
Authors contributed equally.
Foods 2020, 9(4), 435; https://doi.org/10.3390/foods9040435
Received: 5 February 2020 / Revised: 8 March 2020 / Accepted: 17 March 2020 / Published: 4 April 2020
(This article belongs to the Section Food Quality and Safety)
Ten banana (Musa spp.) cultivars were studied for their antimicrobial properties. Three plant parts (corm, pseudostem and leaves) were collected separately and extracted with different solvents, viz., hexane, acetone, ethanol and water. The 50% inhibitory concentration (IC50) was evaluated using a broth microdilution assay. Eight human bacterial and one fungal pathogen were tested. Acetone and ethanol extract(s) often exhibited significant antimicrobial activity, while hexane extracts were less active. Aqueous extracts often showed microbial growth, possibly by endophytes. Leaf extracts were most active, followed by pseudostem, and corm was least active. All the tested banana cultivars were found to contain antimicrobials, as demonstrated by inhibition of selected human pathogens. However, cultivars such as Dole, Saba, Fougamou, Namwah Khom, Pelipita and Mbwazirume showed a broad-spectrum activity, inhibiting all tested pathogens. Other cultivars such as Petit Naine and Kluai Tiparot showed a narrow-spectrum activity, including antibiofilm activity against Candida albicans. Our results support the use of different parts of banana plants in traditional human medicine for infections, including diarrhea and dysentery, and some sexually transmitted diseases, as well as for packaging spoilable materials like food. View Full-Text
Keywords: antimicrobial activity; banana cultivars; biofilm inhibitory concentration; food-borne pathogens; Musa spp. antimicrobial activity; banana cultivars; biofilm inhibitory concentration; food-borne pathogens; Musa spp.
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MDPI and ACS Style

Jouneghani, R.S.; Castro, A.H.F.; Panda, S.K.; Swennen, R.; Luyten, W. Antimicrobial Activity of Selected Banana Cultivars Against Important Human Pathogens, Including Candida Biofilm. Foods 2020, 9, 435. https://doi.org/10.3390/foods9040435

AMA Style

Jouneghani RS, Castro AHF, Panda SK, Swennen R, Luyten W. Antimicrobial Activity of Selected Banana Cultivars Against Important Human Pathogens, Including Candida Biofilm. Foods. 2020; 9(4):435. https://doi.org/10.3390/foods9040435

Chicago/Turabian Style

Jouneghani, Ramin S.; Castro, Ana H.F.; Panda, Sujogya K.; Swennen, Rony; Luyten, Walter. 2020. "Antimicrobial Activity of Selected Banana Cultivars Against Important Human Pathogens, Including Candida Biofilm" Foods 9, no. 4: 435. https://doi.org/10.3390/foods9040435

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