Extraction and Evaluation of the Antimicrobial Activity of Polyphenols from Banana Peels Employing Different Extraction Techniques
Open accessAbstract
Polyphenols are natural antioxidants and play a vital role in inhibiting oxidative stress induced by the body’s free radicals. Banana peels are a significant agro-industrial waste. This waste could be utilized to extract polyphenols to process various functional foods and nutraceuticals. An investigation was executed to extract polyphenols from banana peel using the sonication and maceration techniques. Three different polar solvents, methanol, ethanol and acetone, were used at four different concentrations: 25%, 50%, 75% and 100%. Yield (%), Total Polyphenolic Content (TPC), Total Flavonoid Content (TFC) and 1,1-diphenyl-2-picryl-hydrazyl (DPPH) Radical Scavenging assays were performed. The results from the current study articulate that extraction by sonication yields a higher quantity of polyphenols than the maceration technique. The study also concludes that ethanol leads to better extraction than other solvents used in this study.
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Catechins show strong antioxidant effects against lipid peroxidation and protective effects against cancer and cardiovascular disease.
“Catechins show strong antioxidant effects against lipid peroxidation [84] and protective effects against diseases such as cancer and CVD [85].”
From Functional, nutritional and medicinal potential of banana peel (2023) · cites this paper as [84]
Citation [85] is attached to the claim that catechins protect against cancer and cardiovascular disease. The Introduction mentions gallocatechin as an antioxidant in banana peel, and Section 3.6 reports antioxidant potential of banana-peel extracts, but neither addresses protection against those diseases. Searches for catechins, cancer, and cardiovascular disease found no supporting passage in our copy. (LLM, conf=0.73)
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- Authors
- Chaudhry, F., Ahmad, M. L., Hayat, Z., Ranjha, M. M. A. N., Chaudhry, K., Elboughdiri, N., Asmari, M., & Uddin, J.
- Affiliations
- University of Sargodha (PK)
- University of Ha'il (SA)
- King Khalid University (SA)
- Corresponding author
- Uddin, Jalal
- ORCID
- Venue
- Separations
- Publisher
- MDPI AG
- Published
- 2022-06-29
- Volume
- 9
- Issue
- 7
- Pages
- 165
- ISSN
- 2297-8739 (ISSN-L)
- OpenAlex
- W4283723698
- Cited by
- 60
- References
- 28
- Citations by year
- 2026: 11 · 2025: 16 · 2024: 15 · 2023: 14 · 2022: 4
- FWCI
- 6.41
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Separations (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- the Deanship of Scientific Research at King Khalid University (RGP. 1/200/43)
- Topics
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Food Science › Agricultural and Biological Research
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Garlic and Onion Studies
- Keywords
- banana peel, polyphenols, extraction methods, sonication, maceration, solvent polarity, ethanol extraction, total polyphenols, total flavonoid content, DPPH radical scavenging, antioxidant activity, agro-industrial waste valorization, nutraceuticals
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