TL;DR: The antioxidant activities of four Lamiaceae plants, Salvia viridis L., Salvia multicaulis Vahl, Stachys byzantina C. Koch and Eremostachys laciniata (L.) Bunge have been determined and it is concluded that the extracts have a potential source of antioxidants of natural origin.
Abstract: The antioxidant activities of four Lamiaceae plants, Salvia viridis L., Salvia multicaulis Vahl, Stachys byzantina C. Koch and Eremostachys laciniata (L.) Bunge have been determined by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) as well as by flow injection analysis-luminol chemiluminescence (FIA-CL). All extracts were shown to possess a significant scavenger activity against DPPH free radical and an inhibitory effect on H2O2- or HOCl-luminol chemiluminescence. The extracts scavenged 50% of DPPH radical ranging in the following descending order: Salvia viridis > Stachys byzantina > Salvia multicaulis > Eremostachys laciniata. The most potent extract on H2O2-induced peak chemiluminescence was that of Salvia viridis and on HOCl-induced peak chemiluminescence was that of Stachys byzantina. The results concluded that the extracts have a potential source of antioxidants of natural origin.
TL;DR: The results showed that the fruit extract of R. coriaria had the strongest antimicrobial effect with an inhibition zone of 35–51 mm against all the bacteria used, while S. viridis demonstrated the weakest antibacterial effect.
Abstract: In this study, the antibacterial and antifungal activities of Rhus coriaria L. (Anacardiaceae), Stachys annua (L.) subsp. annua Ic., Stachys pumilia Banks & Sol., Laurus nobilis L. (Lauraceae), Allium neapolitanum Lyr. (Liliaceae), Salvia viridis L. (Lamiaceae), and Nicotina rustica (Solanaceae) species were investigated. The microbial effects of these plants were tested by a disk diffusion method using Bacillus megaterium DSM 32, Bacillus brevis FMC 3, Bacillus subtilis IMG 22, Bacillus cereus FMC 19, Escherichia coli DM, Enterobacter aerogenes CCM 2531, Pseudomonas aeruginosa DSM 50071, Staphylococcus aureus Cowan 1, Listeria monocytogenes Scott A and Micrococcus luteus LA 2971, Candida tropicalis and Candida albicans CCM 314. The results showed that the fruit extract of R. coriaria had the strongest antimicrobial effect with an inhibition zone of 35‐51 mm against all the bacteria used, while S. viridis demonstrated the weakest antibacterial effect, inhibiting only the development of S. aureus, with an inhibition zone of 11 mm. A. neapolitanum, L. nobilis and N. rustica extracts were effective only with some yeasts. The growth of S. aureus was inhibited by all the plant extracts except for S. annua subsp. annua, having an inhibition zone ranging from 7‐8 mm. With the exception of B. subtilis IMG 22, L. monocytogenes Scott A and M. luteus LA 2971, the growth of the other bacteria was inhibited by all the extracts. Except for the fruit extracts of R. coriaria and A. neapolitanum, all additional extracts of generated inhibition zones smaller than those generated by several reference antibiotics.
TL;DR: Three new diterpenes, salvivirid inol, viridinol, Viridone, and sugiol were isolated from the roots of Salvia viridis by NMR spectroscopic techniques and showed activity against S. aureus, S. subtilis and P. mirabilis.
Abstract: Three new diterpenes, salviviridinol, viridinol, viridone, five known diterpenes, sugiol, 1-oxoferruginol, ferruginol, aethiopinone and microstegiol, abietane and rearranged abietane diterpenes were isolated from the roots of Salvia viridis These compounds were assayed against S aureus ATCC 6538 P, E coli ATCC 8739, P mirabilis ATCC 14153, K pneumonia ATCC 4352, P aeruginosa ATCC 27853, S epidermidis ATCC 12228, E faecalis ATCC 29212 and a yeast C albicans ATCC 10231 1-Oxoferruginol showed activity against B subtilis, S aureus, S epidermidis and a modest activity against P mirabilis, migrostegiol had a little activity against B subtilis The structures of the compounds were established by 1D and 2D NMR spectroscopic techniques
TL;DR: Three diterpenoids, 1-oxomicrostegiol (1), viroxocin (2), viridoquinone (3), and trans-verbascoside (or acteoside; 13), were isolated from the roots of Salvia viridis L. cvar and reported in the genus Salvia for the first time.
TL;DR: In this paper, the UPLC-PDA-ESI-MS analysis of hydromethanolic extracts of transformed roots of S. viridis revealed the presence of 10 compounds identified as caffeic acid derivatives.