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John, Sheila
- Investigation on the Phytochemicals Present in the Fruit Peel of Carica papaya and Evaluation of its Antioxidant and Antimicrobial Property
Authors
1 Loyola College, Chennai, IN
2 Womens Christian College, Chennai, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 8, No 4 (2016), Pagination: 217-222Abstract
Background: Plants have the major advantage of being the most treasured and cheaper alternative supplies for drugs. Phytochemicals in fruits and vegetables have gained increasing interest among consumers and the scientific community as epidemiological studies have indicated that regular consumption of phytochemicals is related to a lower risk of non-communicable diseases.
Aim: The aim of the present study was to carry out qualitative and quantitative phytochemical analysis to establish the different classes of compounds present in the peel of indigenous fruit C. papaya using five different solvents and evaluate its antioxidant and antimicrobial property.
Methods and Material: Evaluate the antioxidant property of Carica papaya peel by radical scavenging methods and to elicit the most effective concentration of the extract with highest antimicrobial activity by measuring the diameter of zone of inhibition against five pathogens.
Results: The various extracts revealed the presence of phytoconstituents such as phenols, flavonoids and tannins in appreciable amounts and the antioxidant potential of papaya peel. Agar well method demonstrated that the species most sensitive to C. papaya peel among the gram-positive microorganisms was Bacillus subtilis, whereas among the gram-negative species the most sensitive was Klebsiella pneumoniae.
Keywords
Papaya Fruit Peel, Phytochemicals, Functional Foods, Antioxidants, Antimicrobial.
- Investigation on the Antimicrobial and Antioxidant Activity of Custard Apple (Annona reticulata) Peel Extracts
Authors
1 Loyola College, Chennai, IN
2 Womens Christian College, Chennai, IN
3 SDNB Vaishnav College for women, Chennai, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 9, No 4 (2017), Pagination: 241-247Abstract
Background: Custard apple or sugar apple can be called as a delicacy of dry region due to its very sweet delicate flesh. The peel of custard apple contains tannins, acetogenin and alkaloids which is beneficial in the treatment of several types of cancer and tumors. Methodology/Principal Findings: The present study was taken up to investigate the phytochemical composition, antimicrobial potential, antioxidant activity of the fruit peel wastes of custard apple. The phytochemical screening of the fruit peel revealed the presence of Carbohydrates, Saponins, Phenols and Terpenoids .The antioxidant property of the peel extract was evaluated using DPPH free radical scavenging and FRAP assay. The antimicrobial test results showed that the raw fruit peel extract had a great potential antimicrobial activity against all the bacteria and fungal species selected for testing.Conclusions/Significance: The results presented here may suggest that the raw fruit peel extracts possesses antioxidant and antimicrobial properties, and is therefore a potential source of ingredients for the food and pharmaceutical industry.Keywords
Annona reticulata, Antimicrobial, Antioxidant.References
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