Antioxidant activity total phenols and phytochemical constituents of four underutilised tropical fruits

Wireko-Manu F. D., . and Boakye A. A., . and Agbenorhevi J. K., . and Oduro I., . Antioxidant activity total phenols and phytochemical constituents of four underutilised tropical fruits. pp. 262-268. ISSN 22317546

The antioxidant activity total phenols content and phytochemical constituents of edible portions of four underutilised tropical fruits; Irvingia gabonensis (African mango) Artocarpus altilis (breadfruit) Annona muricata (soursop) and Annona squamosa (sweetsop) were determined. Extracts of fruit samples were screened for selected phytochemicals using standard methods whereas the total phenols content and antioxidant activity (by free radical scavenging action) was determined by the Folin-Ciocalteu method and DPPH assay respectively. The antioxidant activities were high with values ranging from 63 inhibition (breadfruit) to 78 inhibition (African mango pulp). African mango seeds had the highest total phenols content (20.96 mg GAE /100g). Tannins triterpenoids saponins sterols cardiac glycosides flavanoids and coumarins were detected in most of the fruit extracts. The study revealed that these underutilised tropical fruits have considerable free radical scavenging (antioxidant) activity and an array of phytochemicals necessary to significantly impact health of consumers.

Full text available from: Official URL: http://ifrj.upm.edu.my/22%20(01)%202015/(37).pdf

Abstract

The antioxidant activity total phenols content and phytochemical constituents of edible portions of four underutilised tropical fruits; Irvingia gabonensis (African mango) Artocarpus altilis (breadfruit) Annona muricata (soursop) and Annona squamosa (sweetsop) were determined. Extracts of fruit samples were screened for selected phytochemicals using standard methods whereas the total phenols content and antioxidant activity (by free radical scavenging action) was determined by the Folin-Ciocalteu method and DPPH assay respectively. The antioxidant activities were high with values ranging from 63 inhibition (breadfruit) to 78 inhibition (African mango pulp). African mango seeds had the highest total phenols content (20.96 mg GAE /100g). Tannins triterpenoids saponins sterols cardiac glycosides flavanoids and coumarins were detected in most of the fruit extracts. The study revealed that these underutilised tropical fruits have considerable free radical scavenging (antioxidant) activity and an array of phytochemicals necessary to significantly impact health of consumers.

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Item Type:	Article
AGROVOC Term:	Antioxidants
AGROVOC Term:	Phenols
AGROVOC Term:	Phytochemistry
AGROVOC Term:	Tropical fruits
AGROVOC Term:	Artocarpus altilis
AGROVOC Term:	Annona muricata
AGROVOC Term:	Annona squamosa
AGROVOC Term:	Free radicals
AGROVOC Term:	Public health
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/21995

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