Efficacité des huiles essentielles de <i>Cymbopogon citratus</i> et de <i>Mentha piperita</i> dans la stabilisation du lait frais de vache au Sud du Bénin

Abstract

RESUMEMalgré son importance nutritionnelle et socio-économique, la conservation du lait frais de vache demeure toujours un problème crucial dans les grands systèmes post-collecte du lait. La présente étude vise donc à évaluer les propriétés antimicrobiennes des huiles essentielles extraites des feuilles de Cymbopogon citratus et de Mentha piperita dans la conservation du lait frais de vache au Sud du Bénin. La détermination de la composition chimique des huiles essentielles par Chromatographie en Phase Gazeuse couplée à la Spectrométrie de Masse (CPG/CPG-SM) a indiqué que l'huile essentielle de Cymbopogon citratus a pour composés majoritaires le géranial (41,3%), le néral (33%) et le myrcène (10,4%), et celle de Mentha piperita, est majoritairement composée de menthol (46,7%) et de néomenthol (8,28%), avec une teneur en monoterpènes hydrogénés de 5,1%, en monoterpènes oxygénés de 87,0% et en sesquiterpènes hydrogénés 2,1%. Les résultats obtenus lors des essais de conservation du lait par adjonction des huiles essentielles ont montré que les huiles essentielles de Mentha piperita possèdent une forte activité antimicrobienne sur la flore d'altération du lait frais, comparativement à l'huile essentielle de Cymbopogon citratus.

Chemical Composition and Spectrum of Insecticidal Activity of the Essential Oils of Ocimum gratissimum L. and Cymbopogon citratus Stapf on the Main Insects of the Cotton Entomofauna in Côte d'Ivoire

“…The extraction yield (%) is expressed in relation to the plant material and its calculation was done according to Degnon et al. : [48] …”

“…The extraction yield (%) is expressed in relation to the plant material and its calculation was done according to Degnon et al: [48] Yield % ð Þ ¼ mass of the essential oil g ð Þ mass of the plant material g ð Þ � 100…”

Oral toxicity of trypanocidal molecules hemi-synthesized in <i>Cymbopogon citratus</i> essential oil

“…This reaction is certainly due to the presence of citral (aldehyde which irritates mucous membrane in many cases) in large quantities in the oil (Andrade et al, 2009). This work brings more to the many works that have dismantled the pharmacological properties of this oil (Negrelle et al, 2007;Degnon et al, 2016;Alitonou et al, 2012;Diop et al, 2017).…”

Status of research results in chemistry of biologically active substances in Benin

“…In general, the experimental results obtained in the model medium are confirmed on foods, but with slightly higher oils concentrations. Thus, the authors reported the efficacy of plant extracts for tomato [46], milk [47], milk waragashi cheese [48], peanut [49], fish [50], tchakpalo (local beer) [10], mango purse [51] and cowpea [52 -53] conservation. Thus, plant extracts, especially the essential oils extracted from acclimated aromatic plants in Benin, were first addressed from their chemical composition as well as their antibacterial and antifugal power against many pathogens and alteration strains of foods.…”

“…Thus, plant extracts, especially the essential oils extracted from acclimated aromatic plants in Benin, were first addressed from their chemical composition as well as their antibacterial and antifugal power against many pathogens and alteration strains of foods. In this context, the chemical composition and biological properties of essential oils extracted from the fresh leaves of Lippia rugosa A. Chev [11], Cymbopogon citratus [54 -55] and Ocimum scissimum [47] have been investigated for their use in the conservation of food products. The results of these studies have shown that the essential oils extracted from Lippia Rugosa A. Chev, Cymbopogon citratus and Ocimum gratissimum collected in Benin, have interesting antimicrobial properties, offering new perspectives in the fight against microorganisms which contaminate foodstuffs.…”