In vitro antifungal activity of aqueous extract and essential oil of African basil (Ocimum gratissimum L.)

Amenan Fanny Akpo; Yardjouma Silué; Charlemagne Nindjin; Kablan  Tano; Kohi Alfred  Kouamé; Fabrice Achille Tetchi; Felicie  Lopez-Lauri

doi:10.51745/najfnr.7.16.136-145

Food Chemistry, Engineering, Processing and Packaging Food Microbiology, Safety and Toxicology

Amenan Fanny Akpo ⁽¹⁾ , Yardjouma Silué ⁽²⁾ , Charlemagne Nindjin ⁽³⁾ , Kablan Tano ⁽⁴⁾ , Kohi Alfred Kouamé ⁽⁵⁾ , Fabrice Achille Tetchi ⁽⁶⁾ , Felicie Lopez-Lauri ⁽⁷⁾

(1) Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279), Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(2) Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279), Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(3) Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(4) Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(5) Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(6) Nangui Abrogoua University, Abidjan , Côte d'Ivoire

(7) Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279) , France

https://doi.org/10.51745/najfnr.7.16.136-145

Issue
Vol. 7 No. 16 (2023): July - December, 2023

Submitted
June 20, 2023

Published
December 8, 2023

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Abstract

Background: Fruit and vegetables are threatened by several diseases. These diseases are mainly treated with chemicals representing a real danger to human health and the environment. Aims: This study aims to develop safe and non-polluting alternatives such as medicinal plants to control fungal phytopathogens. Material and Methods: In the present study, the aqueous extract and essential oil of the medicinal plant Ocimum gratissimum L. were tested in vitro against Botrytis cinerea, Colletotrichum gloeosporioides and Fusarium oxysporum. Results: The results show that the essential oil of Ocimum gratissimum L. has significant antifungal activity on the studied strains. It inhibits completely the growth of Botrytis cinerea and Colletotrichum gloeosporioides from the concentration of 500 ppm. While at least 750 ppm is required for complete inhibition of the growth of Fusarium oxysporum. Regarding the aqueous extract, total inhibition has been observed at the 60% concentration for Botrytis cinerea and Colletotrichum gloeosporioides. However, no concentration of aqueous extract completely inhibited the growth of Fusarium oxysporum. Conclusion: This study can be a starting point for research on a promising solution using the essential oil and aqueous extract of O. gratissimum L. as alternatives to chemicals to manage anthracnose (caused by C. gloeosporioides) and gray mold (caused by B. cinerea).

Keywords: Antifungal activity, aqueous extract, essential oil, Ocimum gratissimum L.

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Authors

Amenan Fanny Akpo

Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279), Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan

Yardjouma Silué

Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279), Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan

silue.yardjouma@univ-na.ci (Primary Contact)

Charlemagne Nindjin

Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan

Kablan Tano

Nangui Abrogoua University, Abidjan

Kohi Alfred Kouamé

Swiss Center for Scientific Research in Côte d’Ivoire, Nangui Abrogoua University, Abidjan

Fabrice Achille Tetchi

Nangui Abrogoua University, Abidjan

Felicie Lopez-Lauri

Avignon University, F-84916 Avignon, France / Department of Agricultural Sciences, Laboratory of Fruit and Vegetable Physiology (EA4279)

Akpo, A. F., Silué, Y., Nindjin, C., Tano, K. ., Kouamé, K. A. ., Tetchi, F. A., & Lopez-Lauri, F. . (2023). In vitro antifungal activity of aqueous extract and essential oil of African basil (Ocimum gratissimum L.). The North African Journal of Food and Nutrition Research, 7(16), 136–145. https://doi.org/10.51745/najfnr.7.16.136-145

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