Title: Antimicrobial Activities of Laurus Nobilis and Cymbopogon Citratus, Two Aromatic Plants Used to Produce Fermented Cereal-Based Porridges
Abstract: This study investigates the potential benefits of Cymbopogon citratus and Laurus nobilis on fermented porridge microorganisms. The phytochemical components were screened, and standard methods assessed biological activities. The two plants have different phytochemical profiles. Tannins, flavonoids, mucilage, and alkaloids were detected in both plants. Cyanogenic derivatives, O-heterosides, and genin-reduced O-heterosides were absent. L. nobilis contained anthocyanins, quinone derivatives, saponosides, reducing compounds, and free anthracenes, absent in C. citratus. The inhibition diameters ranged from 4.4 to 26.3, depending on the strains and extracts, and varied significantly. The MICs for Escherichia coli ranged from 4.5mg/ml to 7mg/ml, staphylococci from 3.75mg/ml to 10mg/ml, and lactic acid bacteria from 2.5 mg/ml to 4.44mg/ml. The CMB varied between 8.125mg/ml and 14mg/ml for Escherichia coli, 7.5mg/ml to 20mg/ml for staphylococci, and 6 mg/ml to 10 mg/ml for lactic acid bacteria. It is worth noting that staphylococci are the most biofilm-producing strains (80%), followed by Escherichia coli (60%), and lactic acid bacteria produce less biofilm (30%). The findings provide scientific evidence that validates the traditional use of these leaves for treating illnesses in Benin. Further research is required to identify and isolate the active components responsible for their medicinal properties and ascertain their operation mode.
Publication Year: 2023
Publication Date: 2023-01-01
Language: en
Type: preprint
Indexed In: ['crossref']
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