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Debasree Ghosh,
Hamidur Rahaman Mondal,
- Professor, Department of Food and Nutrition, Barrackpore RastraguruSurendranath College, Barrackpore, Kolkata, West Bengal, India
- Student, Department of Food and Nutrition, Barrackpore RastraguruSurendranath College, Barrackpore, Kolkata, West Bengal, India
Abstract
Cucumber (Cucumis sativus) is widely consumed across the globe, yet its peels are commonly discarded as waste, despite possessing a wealth of bioactive compounds. Recent studies have highlighted that these peels contain substantial amounts of antioxidants, antibacterial, anti-inflammatory, and anti-carcinogenic properties, making them a promising candidate for value-added applications. In this study, methanolic extracts (80% v/v) of cucumber peels were systematically analyzed to assess their total phenolic content (TPC), total flavonoid content (TFC), and ascorbic acid concentration. The analyses were carried out using well-established protocols, including the Folin–Ciocalteu method for TPC, the Aluminum Chloride colorimetric method for TFC, and spectrophotometric analysis for ascorbic acid quantification.
The results demonstrated that the peel extracts are rich in phenolic compounds and flavonoids, along with a notable amount of ascorbic acid, indicating strong antioxidant potential. Furthermore, the extracts exhibited significant antibacterial activity against selected microbial strains, underscoring their potential as natural antibacterial agents. These findings suggest that cucumber peels, often overlooked and discarded, could serve as a sustainable source of natural preservatives in the food industry. Moreover, the use of such agro-waste not only promotes environmental sustainability by reducing organic waste but also adds economic value through the development of functional food ingredients or nutraceuticals. Further research is warranted to optimize extraction techniques, explore in-depth biological activities, and evaluate the practical applications of cucumber peel extracts in real food systems and pharmaceutical formulations.
Keywords: Cucumber peel, phytochemicals, vitamin C, antimicrobial activity.
[This article belongs to Emerging Trends in Metabolites ]
Debasree Ghosh, Hamidur Rahaman Mondal. Studies on the antioxidant content and antimicrobial activity of cucumber (cucumissativus) peel collected from bagmari, kolkata, west bengal, india. Emerging Trends in Metabolites. 2025; 02(02):-.
Debasree Ghosh, Hamidur Rahaman Mondal. Studies on the antioxidant content and antimicrobial activity of cucumber (cucumissativus) peel collected from bagmari, kolkata, west bengal, india. Emerging Trends in Metabolites. 2025; 02(02):-. Available from: https://journals.stmjournals.com/etm/article=2025/view=210182
References
- Kumar H, Bhardwaj K, Sharma R, Nepovimova E, Kuča K, Dhanjal DS, Verma R, Bhardwaj P, Sharma S, Kumar D. Fruit and vegetable peels: utilization of high-value horticultural waste in novel industrial applications. Molecules. 2020;25(12):1-20.
- Pathak PD, Mandavgane SA, Kulkarni BD. Fruit peel waste: characterization and its potential uses. Curr Sci. 2017;113(3):444-454.
- Hussain H, Mamadalieva NZ, Hussain A, Hassan U, Rabnawaz A, Ahmed I, Green IR. Fruit peels: food waste as a valuable source of bioactive natural products for drug discovery. Curr Issues Mol Biol. 2022;44(5):1960-1994.
- Ayodele OD, Oyetola O, Oseni SR. Phytochemical analysis and antioxidant activities of dry and fresh Petiveria alliacea and Ocimum gratissimum. Int J Sci Basic Appl Res. 2015;24(3):1-13.
- Chanda S, Ramachandra TV. A review on some therapeutic aspects of phytochemicals present in medicinal plants. Int J Pharm Life Sci. 2019;10(1):6052-6058.
- Pradeep A, Dinesh M, Govindaraj A, Vinothkumar D, Ramesh BNG. Phytochemical analysis of some important medicinal plants. Int J Biol Pharm Res. 2014;5(1):48-50.
- Sehwag S, Das M. Antioxidant activity: an overview. Res Rev J Food Sci Technol. 2013;1-10.
- Flieger J, Flieger W, Baj J, Maciejewski R. Antioxidants: classification, natural sources, activity/capacity measurements and usefulness for the synthesis of nanoparticles. Materials (Basel). 2021;14(15):4135.
- Robbins RJ. Phenolic acids in foods: an overview of analytical methodology. J Agric Food Chem. 2003;51(10):2866-2887.
- Kumar N, Goel N. Phenolic acids: natural versatile molecules with promising therapeutic applications. Biotechnol Rep. 2019;24:1-10.
- Oluwole O, Fernando WB, Lumanlan J, Ademuyiwa O, Jayasena V. Role of phenolic acid, tannins, stilbenes, lignans and flavonoids in human health: a review. Int J Food Sci Technol. 2022;57(10):1-11.
- Kumar S, Pandey AK. Chemistry and biological activities of flavonoids: an overview. Sci World J. 2013;1-16.
- Panche AN, Diwan AD, Chandra SR. Flavonoids: an overview. J Nutr Sci. 2016;5:1-15.
- Pauling L. Ascorbic acid and the common cold. Scott Med J. 1973;18(1):1-2.
- Steinberg F, Rucker R. Vitamin C. Elsevier eBooks. 2013;530-534.
- Berretta M, Quagliariello V, Maurea N, Di Francia R, Sharifi S, Facchini G, et al. Multiple effects of ascorbic acid against chronic diseases: updated evidence from preclinical and clinical studies. Antioxidants. 2020;9(12):1-12.
- Chaturvedi DP. Unraveling antimicrobial resistance. CSIR Sci Rep. 2024;15-19.
- Sakr F, Dabbous M, Malaeb D, Rahal M. Novel antimicrobial agents: a review. Int J Pharm Technol. 2014;5(4):2824-2838.
- Rayamajhi N, Cha SB, Sang H. Antibiotics resistances: past, present and future: review paper. J Biomed Res. 2010;11(2):65-80.
- Narender BR, Rajakumari M, Khan S, Harish S. Antimicrobial activity on peels of different fruits and vegetables. J Pharm Res. 2018;7(1):1-7.
- Singleton VL, Rossi JA. Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents. Am J Enol Vitic. 1965;16(3):144-158.
- Bao J, Cay Y, Sun M, Wang G, Corke H. Anthocyanins, flavonols, and free radical scavenging activity of Chinese bayberry (Myricarubra) extracts and their color properties and stability. J Agric Food Chem. 2005;53:22327-2332.
- Roe JH, Oesterling MJ. Determination of ascorbic acid content. J Biol Chem. 1944;152:511.
- Bhatt RS, Al-Daihan S. Phytochemical constituents and antibacterial activity of some green leafy vegetables. Asian Pac J Trop Biomed. 2014;4(3):189-193.
- Aneja KR. Laboratory manual of microbiology and biotechnology. MedTech. 2016.
- Willey EBJM, Sherwood LM, Woolverton CJ. Prescott, Harley and Klein’s microbiology. McGraw-Hill. 2008;7(1).
- Sari TA, Chandra B, Rivai H. Overview of traditional use, phytochemical and pharmacological activities of cucumber (Cucumis sativus L.). Int J Pharm Sci Med. 2021;6(3):39-49.
- Nasrin F, Bulbul IJ, Aktar F, Rashid MA. Anti-inflammatory and antioxidant activities of Cucumis sativus leaves. Bangladesh Pharm J. 2015;18(2):169-173.
- Insanu M, Zahra AA, Sabila N, Silviani V, Haniffadli A, Rizaldy D, et al. Phytochemical and antioxidant profile: cucumber pulp and leaves extracts. Open Access Maced J Med Sci. 2022;10(A):616-622.
- Yunusa AK, Dandago MA, Ibrahim SM, Abdullahi N, Rilwan A, Barde A. Total phenolic content and antioxidant capacity of different parts of cucumber (Cucumis sativus L.). Acta Univ Cibin Ser E Food Technol. 2018;22(2):13-18.
- Elkhatim KAS, Elagib RAA, Hassan AB. Content of phenolic compounds and vitamin C and antioxidant activity in wasted parts of Sudanese citrus fruits. Food Sci Nutr. 2018;6(5):1214-1219.
- Manach C, Scalbert A, Morand C, Rémésy C, Jiménez L. Polyphenols: food sources and bioavailability. Am J Clin Nutr. 2004;79(5):727-747.
- Dhande S, Shah P, Joshi Y, Kadam V. A review on Cucumis sativus (Cucumber). Res J Pharmacogn Phytochem. 2013;5(2):49-53.
- Uzuazokaro MA, Okwesili FCN, Chioma AA. Phytochemical and proximate composition of cucumber (Cucumis sativus) fruit from Nsukka, Nigeria. Afr J Biotechnol. 2018;17(38):1215-1219.
- Foong FHN, Mohammad A, Ichwan SJA. Biological properties of cucumber (Cucumis sativus L.) extracts. Malays J Anal Sci. 2015;19(6):1218-1222.
- Uthpala TGG, Marapana RAUJ, Lakmini KPC, Wettimuny DC. Nutritional bioactive compounds and health benefits of fresh and processed cucumber (Cucumis sativus). Sumerianz J Biotechnol. 2020;3(9):75-82.
- Reddy PSK, Lakshmi LM, Muniyappan C, Thiruppathi M. Assessment of total soluble solids, ascorbic acid and acidity in cucumber (Cucumis sativus L.) varieties under open and protected conditions. Ann Phytomedicine. 2022;11(2):684-688.
- Sharaa IE, Mussa SB. Determination of vitamin C (ascorbic acid) contents in vegetable samples by UV-spectrophotometry and redox titration methods and estimation of the effects of time, cooking, and freezing on ascorbic acid contents. Int J Prog Sci Technol. 2019;15(2):281-293.
- Biswas S, Ghosh P, Dutta A, Biswas M, Chatterjee S. Comparative analysis of nutritional constituents, antioxidant and antimicrobial activities of some common vegetable wastes. Curr Res Nutr Food Sci. 2021;9(1):62-74.
- Omoniyi MA, Alli AM. Determination of minerals, vitamin content and antioxidant activity of cucumber and watermelon fruits from southwestern part of Nigeria. Int J Agric Sci Technol. 2021;1(1):15-23.
- Mozafar A. Nitrogen fertilizers and the amount of vitamins in plants: a review. J Plant Nutr. 1993;16(12):2479-2506.
- John S, Monica SP, SJ C, PA. In vitro antioxidant and antimicrobial properties of Cucumis sativus L. peel extracts. Int Res J Pharm. 2018;9(1):56-60.
- El-Desouky RMA, Saleh ASB, Alhowamil HF. The phytochemical and antimicrobial effects of orange peel powder extracts on some animal pathogens as eco-friendly. EC Microbiol. 2018;14(6):312-318.

Emerging Trends in Metabolites
| Volume | 02 |
| Issue | 02 |
| Received | 15/02/2025 |
| Accepted | 01/03/2025 |
| Published | 15/05/2025 |
| Publication Time | 89 Days |
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