Antioxidant activities of leaves and fruits of piper nigrum and piper longum

Title

Antioxidant activities of leaves and fruits of piper nigrum and piper longum

Creator

Xavier J.; Thomas S.

Description

Background and Objectives: Herbs and spices have been used to enhance flavors of food, as well as for their medicinal purposes. Herbs usually contain antioxidant properties. The present study was focused on the importance of the antioxidants present in Piper nigrum and Piper longum widely used by the people of India in their food. Materials and Methods: The methanolic extracts of the leaves and fruits of both Piper nigrum and Piper longum were prepared using soxhlet extraction method. The total phenolic content (TPC) of the plant samples were determined by the Folin-Ciocalteu method. The total flavonoid content (TFC) of the plant was determined. The inhibitory effect of the plant against oxidation by peroxides was evaluated by ferric thiocyanate assay. Results: The highest concentration of phenol was obtained from Piper nigrum leaves. The highest flavonoid content was observed in the Piper nigrum leaves (0.15 mg). The higher reducing potency of the antioxidants was present in the leaves and fruit of Piper nigrum and Piper longum exhibiting their antioxidant properties. The ability of the plant extracts of Piper nigrum and Piper longum against lipid peroxidation was revealed through the efficiency of inhibiting the radicals at a percentage of 58.33, 77.77, 66.66 and 22.22, respectively. Conclusion: From the study it was concluded that leaves and fruits of Piper nigrum and Piper longum have shown high antioxidant properties. So, they are considered to be rich sources of natural antioxidants for food, cosmetic and pharmaceutical industries. 2020 Jobi Xavier and Seju Thomas.

Source

Asian Journal of Plant Sciences, Vol-19, No. 2, pp. 127-132.

Date

2020-01-01

Publisher

Asian Network for Scientific Information

Subject

Antioxidant; Cosmetics; Flavonoid content; Free radicals; Lipid peroxidation; Pharmaceutical industries

Coverage

Xavier J., Department of Life Sciences, Christ University, Bangalore, India; Thomas S., Department of Life Sciences, Christ University, Bangalore, India

Rights

All Open Access; Gold Open Access

Relation

ISSN: 16823974

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.3923/ajps.2020.127.132

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85087462232&doi=10.3923%2fajps.2020.127.132&partnerID=40&md5=6a4a5502fe389d86764f208c413ae986