In vitro antibacterial activity of pineapple peel extracts and chemical composition of dimethyl sulfoxide extract
Abstract
In this study, ethanol, methanol, and dimethyl sulfoxide (DMSO) extracts were obtained from pineapple (Ananas comosus L.) peel by ultrasonication, and their antibacterial activity was evaluated in vitro using the agar well diffusion and microdilution methods. Pineapple peel extracts obtained by the agar well diffusion method did not form any inhibitory zones against the tested bacteria (Escherichia coli (ATCC 1301, ATCC 25922, ATCC 8739, and NRRL B-3704), Klebsiella pneumoniae ATCC 700603, Salmonella enterica subsp. enterica ATCC 13076, and Salmonella enterica subsp. typhimurium ATCC 51812, Pseudomonas aeruginosa (ATCC 10145 and ATCC 27853), Bacillus cereus, Bacillus subtilis, Enterococcus faecalis ATCC 29212, and Staphylococcus aureus ATCC 29213). Furthermore, MIC values were determined to be >125 µL/mL by microdilution. Moreover, the chemical composition of the DMSO extract from pineapple peel was determined by headspace solid-phase microextraction–gas chromatography–mass spectrometry (HS-SPME-GC-MS), and the main component was identified as pinostrobin (44.66%), a flavanone. In conclusion, the extracts obtained from pineapple peel do not exhibit antibacterial activity, and the results are consistent with the chemical composition. This study demonstrates the importance of evaluating chemical composition together with in vitro biological activities in determining the biological potential of plant and food wastes
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References
- Ali MM, Hashim N, Abd Aziz S, Lasekan O (2020). Pineapple (Ananas comosus): A comprehensive review of nutritional values, volatile compounds, health benefits, and potential food products. Food Research International 137: 109675. https://doi.org/10.1016/j.foodres.2020.109675
- Azmir J, Zaidul ISM, Rahman MM, Sharif KM, Mohamed A, Sahena F, Jahurul MHA, Ghafoor K., Norulaini NAN, Omar AK (2013). Techniques for extraction of bioactive compounds from plant materials: A review. Journal of Food Engineering 117(4): 426-436. https://doi.org/10.1016/j.jfoodeng.2013.01.014
- Azwanida NN (2015). A review on the extraction methods use in medicinal plants, principle, strength and limitation. Medicinal & Aromatic Plants 4(196): 2167-0412. http://dx.doi.org/10.4172/2167-0412.1000196
- Baiano A (2014). Recovery of biomolecules from food wastes – A review. Molecules 19(9): 14821-14842. https://doi.org/10.3390/molecules190914821
- Banerjee J, Singh R, Vijayaraghavan R, MacFarlane D, Patti AF, Arora A (2017). Bioactives from fruit processing wastes: Green approaches to valuable chemicals. Food Chemistry 225: 10–22. https://doi.org/10.1016/j.foodchem.2016.12.093
- Carrera C, Ruiz-Rodríguez A, Palma M, Barroso CG (2012). Ultrasound assisted extraction of phenolic compounds from grapes. Analytica Chimica Acta 732: 100-104. https://doi.org/10.1016/j.aca.2011.11.032
- Casillas-Vargas G, Ocasio-Malavé C, Medina S, Morales-Guzmán C, Del Valle RG, Carballeira NM, Sanabria-Ríos DJ (2021). Antibacterial fatty acids: An update of possible mechanisms of action and implications in the development of the next-generation of antibacterial agents. Progress İn Lipid Research 82: 101093. https://doi.org/10.1016/j.plipres.2021.101093
- Cheok CY, Mohd Adzahan N, Abdul Rahman R, Zainal Abedin NH, Hussain N, Sulaiman R, Chong GH (2018). Current trends of tropical fruit waste utilization. Critical Reviews in Food Science and Nutrition 58(3): 335–361. https://doi.org/10.1080/10408398.2016.1176009
Details
Primary Language
English
Subjects
Microbiology (Other)
Journal Section
Research Article
Authors
Publication Date
July 10, 2026
Submission Date
April 12, 2026
Acceptance Date
July 2, 2026
Published in Issue
Year 2026 Volume: 10