Comparative Antioxidant and Antimicrobial Activities of Several Conifer Needles and Bark Extracts.

ABSTRACT: Nowadays, an increased concern regarding using natural products for their health benefits can be observed. The aim of this study was to assess and compare several phenolic compounds found in 15- to 60-year-old Douglas fir, silver fir, larch, pine, and spruce needle and bark extracts and to evaluate their antioxidant and antimicrobial activities. Spectrophotometric assays were used to determine the total polyphenol content and the antioxidant activity that was assessed by using the DPPH• radical scavenging assay (RSA), the ferric reducing antioxidant power assay (FRAP), and the ABTS•+ radical cation scavenging assay (ABTS). The phytochemical content was determined by using high-performance liquid chromatography, and the antimicrobial activity was determined by assessing the minimal inhibiti

SUBMITTER: Popescu Stegarus DI 

PROVIDER: S-EPMC10821083 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature