Phytochemical Constituents, Antibacterial and Anti-cholinesterase Activities of Strobilanthes Crispus L.
The study shows the phytochemical investigation on the leaves of Strobilanthes crispus L. The structures of the isolated compounds were elucidated with the aid of chromatographic and spectroscopic techniques including GC, GC-MS, EI-MS, IR, UV, 1D and 2D NMR. The extracts and the isolated compounds were tested for antibacterial activity using the micro-dilution antibacterial assay, and anti-cholinesterase activity using the microplate assay.
The study shows the phytochemical investigation on the leaves of Strobilanthes crispus L. The structures of the isolated compounds were elucidated with the aid of chromatographic and spectroscopic techniques including GC, GC-MS, EI-MS, IR, ...
Macrofungi of a Healthy Campus is a compilation of the fruit bodies of fungi found on USM Minden Campus. It contains detailed information on 66 macrofungi species collected from 2007 to 2010. A diversity of macrofungi was found on the Campus ranging from saprophytic, parasitic to symbiotic fungi (mycorrhiza). As a Healthy Campus, the macrofungi in this ecosystem indicates important ecological functioning of nature which involves the recycling of organic materials.About 36% of macrofungirecorded in this bookwere found at Durian Valley –a mini forested area representing a natural forest ecosystem serves as a small nature sanctuary, hiding and preserving some of the beautiful macrofungi. This will be a great book for researchers, students and nature lover.
tinggi Melayu-Riau (Van Ophuijsen, 1915), perkembangan bahasa Indonesia
dewasa ini menunjukkan bahwa pemilihan norma itu tidak monosentris lagi.
Sambil merunut sejarah pemengaruhan kepustakaan Balai Pustaka, yang
redakturnya banyak yang berbahasa ibu Minangkabau, bahasa pers dan bahasa persuratan kepegawaian sebelum perang, serta bahasa media massa dewasa
ini yang didukung oleh penutur yang bermacam-macam bahasa ibunya, maka
dapat dikatakan ...
Sodium silicate from rice husk ash was functionalized with different silylating agents to produce silica with -CH2-Cl (labelled as RHACCl), -CH2-NH2 (labelled as RHAPrNH2) and -CH2-SH (labelled as RHAPrSH) end groups via a novel one-pot synthesis. Saccharine (Sac) and Melamine (Mela) were immobilized onto RHACCl to form RHAC-Sac and RHAPrMela. The functionalized -CH2-SH group in RHAPrSH was oxidized to sulfonic acid, -CH2-SO3H (labelled as RHAPrSO3H) with hydrogen peroxide at room temperature. The catalysts showed good textural and structural properties. RHAC-Sac, RHAPrMela, RHAPrSO3H, RHA-Blank (as control) as well as homogenous Sac and homogenous Mela were used as catalysts in the esterification reaction. The catalytic activity was found to follow the sequence: RHAPrSO3H > RHAPrMela > homogenous Sac > RHAC-Sac > homogenous Mela > RHA-Blank. The catalysts were easily regenerated and could be reused several times without loss of catalytic activity.
Sodium silicate from rice husk ash was functionalized with different silylating agents to produce silica with -CH2-Cl (labelled as RHACCl), -CH2-NH2 (labelled as RHAPrNH2) and -CH2-SH (labelled as RHAPrSH) end groups via a novel one-pot ...
