Skip to Main content Skip to Navigation
Conference papers

Promoting the antioxidant power of Psidium guajava L. through extraction optimization and characterization of lycopene, one of its micronutrients

Abstract : The aim of this study was first to optimize the extraction and characterization of lycopene, a carotenoid, derived from a tropical fruit, Psidium guajava L., and then to demonstrate its health benefits through its antioxidant power. An extraction procedure was used to reach depletion and a high yield of lycopene, thus minimizing the use of organic solvent. An excellent carotenoid purification was obtained by HPLC-VIS (470 nm) detection in isocracy with a mobile acetonitrile/methanol/tetrahydrofurane phase. The characterization of this pigment has been confirmed by FT analysis. Therefore, we developed an adapted DPPH test to lycopene, which allowed to evaluate its EC50, thus classifying this micronutrient among the good antioxidants. From these results, we can suggest that pink guava (Psidium guajava L.) grown in the West Indies and particularly consumed raw or cooked, contain high levels of lycopene and these results corroborate the health benefit effect of guava and guava-derived products. Reference : Priam F.1, Marcelin O. 1, Marcus R. 1, Jô L-F. 1, Smith-Ravin E-J. Lycopene extraction from Psidium guajava L. and evaluation of its antioxidant properties using a modified DPPH test. IOSR-JESTFT, 11, 2017, 67-73.
Complete list of metadatas

https://hal.univ-antilles.fr/hal-02592217
Contributor : Eliane Falco <>
Submitted on : Friday, May 15, 2020 - 3:59:19 PM
Last modification on : Saturday, May 16, 2020 - 3:38:12 AM

Identifiers

  • HAL Id : hal-02592217, version 1

Collections

Citation

Fabienne Priam, O. Marcelin, R. Marcus, L.-F. Jô, Juliette Smith-Ravin. Promoting the antioxidant power of Psidium guajava L. through extraction optimization and characterization of lycopene, one of its micronutrients. Caribbean Science and Innovation Meeting 2019, Oct 2019, Pointe-à-Pitre (Guadeloupe), France. ⟨hal-02592217⟩

Share