5%. Q-TOFMS provides accurate

MS/MS spectra due to mass drift compensation and internal mass calibration during acquisition. Mass detection was optimized using the parameters described in method section and mass accuracy less than 5 ppm was obtained when compared with internal and external standards. RAD001 ic50 Q-TOFMS was used in positive ion mode with a ramp setting for collision energy to obtain maximum information from the samples. A total number of 254 compounds were observed when analyzed with Qualitative MassHunter [B.04.00 Version] at a threshold more than 5000 counts per second. Tentatively identified metabolites were inspected carefully with help of MS/MS spectra available with http://spectra.psc.riken.jp [Table 1]. Some group of compounds i.e. catechins and other flavonoids and their mTOR inhibitor derivatives were identified by their characteristic mass fragments. Quercetin was identified by comparing its characteristic mass ion peaks at m/z 287, 229, 165 and 137. Glycosides of quercetin were identified by calculating the neutral ion losses of 162, 150 and 120 Da for O or C glycosides along with its characteristic mass ions. Catechin and its derivatives were identified

by comparing the mass ion peaks at m/z 139 and 273 along with neutral losses as discussed above. The study has developed and optimized a convenient, high-throughput, and reliable UPLC-QTOFMS method to analyze crude water extract from T. tomentosa. The identified and most abundantly present marker compounds accountable for the metabolite profile of regenerated very bark of T. tomentosa were observed

which provides fingerprints for the authentication of plant bark. Overall, work can be utilized for the evaluation of quality of medicinal herbs having significance in the pharmacological and clinical investigation. All authors have none to declare. “
“Herbal drugs with constituents from different medicinal plants parts are extensively used and constitute a major source of health care products.1 Medicinal plants prove to be the best renewable pool for identification of clinically active compounds. Medicinal plant extracts and herbal preparations are complex mixtures of active- and ballast substances which may contain numerous, not infrequently up to several hundreds of different constituents with not exactly defined structures. Antimicrobial potential of medicinal plants and its correlation with phytoconstituents is also being evaluated.2, 3 and 4 Researchers target the herbal drug therapy as an alternate to antibiotics and focus on the traditionally recommended medicinal plants as they were effective in various diseases.5 However quality, safety, adulteration and storage stability of these herbal drugs are a great issue and their analysis is challenging.6, 7, 8, 9 and 10 In the study, ten plants extracts were taken and assessed for antifungal evaluation against three fungal strains by determining their MIC.