Salicin Content From Salix Alba L. And Salix Purpurea L. Extracts and Its Antibacterial Effects

Abstract

The species Salix alba L. and Salix purpurea L. are medicinal herbs, frequently used in the pharmaceutical industry. This study performs phytochemical and antibacterial analysis of ethanolic extracts from the bark of these two species. The qualitative and quantitative phytochemical analyses were performed by thin-layer chromatography identifying the salicin and salicylic acid; the salicin content was assessed by high performance liquid chromatography. The bark extracts yielded 4.300 μg/ml-1 salicin for Salix alba and 1.167 μg/ml-1 salicin for Salix purpurea. The plant extracts were tested on Gram negative and positive bacteria (Escherichia coli and Staphylococcus aureus). Both tested strains showed a mild resistance, but S. aureus showed slightly higher inhibition by all extract samples.

Impacts of willow (Salix babylonica L.) leaf extract on growth, cecal microbial population, and blood biochemical parameters of broilers

“…The biologically active components in willow leaf extract, particularly polyphenols, have a negative impact by preventing harmful bacteria from adhering to the gut microbiota and boosting the growth of friendly bacteria. Also, the content of salicin in S. alba and S. purpurea extracts has a vital role in antimicrobial efficiency against Staphylococcus aureus ( Carpa et al, 2022 ). Phenolic substances are known for their immediate efficacy vs. harmful bacteria or reduction of the pathogens' ability to form bonds in the intestine ( Viveros et al, 2011 ).…”