-amyrin heptadecanoate, a new oleanane triterpenoid with -glucosidase inhibitory and cytotoxic activities from the leaves of L.

A previously unreported oleanane triterpenoid, -amyrin heptadecanoate (), was isolated from the leaves of Thai (Oxalidaceae), along with five known compounds, -amyrin (), -sitosterol (), -sitosterol-D-glucoside (), -sitosteryl oleate (), and -tocopherol (). Their structures were elucidated through spectroscopic analysis, including extensive NMR and HRESIMS, and by comparison with the previous literature. All isolated compounds were evaluated for their -glucosidase inhibitory and cytotoxic activities.

sp. nov., a Novel Actinobacterium Isolated from Peat Swamp Forest Soil That Produces Ansamycin Derivatives and Nocardamines.

Actinomycetes, especially the genus , are one of the most promising sources of bioactive natural products. In this study, a novel strain, RCU-064, was isolated from a soil sample collected from a peat swamp forest in Thailand. Strain RCU-064 showed the highest 16S rRNA gene sequence similarity (99.

Effect of propionate-cultured sludge augmentation on methane production from upflow anaerobic sludge blanket systems treating fresh landfill leachate.

This research investigates the effect of propionate-cultured sludge augmentation on methane (CH) production from upflow anaerobic sludge blanket systems (UASB) treating fresh landfill leachate. In the study, both UASB reactors (UASB 1 and UASB 2) contained acclimatized seed sludge, and UASB 2 was augmented with propionate-cultured sludge. The organic loading rate (OLR) was varied between 120.

and Isolated from the Gastrointestinal Tract of Fish Exhibited Inhibitory Effects against Pathogenic Bacteria of Nile Tilapia.

Nile tilapia is one of the most consumed farmed fish in the world. The outbreak of pathogenic bacterial diseases causes high mortality rates and economic losses in Nile tilapia farming. Antibiotic administrations are commonly utilized to inhibit and prevent bacterial infections.

Alleviation of soil acidification and modification of soil bacterial community by biochar derived from water hyacinth Eichhornia crassipes.

The highly acid sulfate Rangsit soil series of Rangsit, Pathum-Thani district, Thailand poses a major problem for agriculture in the area. Water hyacinth is a naturally occurring weed that can grow aggressively, causing eutrophication and leading to many severe environmental impacts. Here, through the pyrolysis process, we convert water hyacinth to biochar and use it for acid soil amendment.

Effects of high-strength landfill leachate effluent on stress-induced microalgae lipid production and post-treatment micropollutant degradation.

This research investigates the effects of landfill leachate effluent concentrations from moving bed biofilm reactor (MBBR) on stress-induced Chlorella vulgaris and Scenedesmus armatus lipid production and post-treatment micropollutant degradation. The effluent concentrations were varied between 25%, 50%, 75%, and 100% (v/v). The landfill leachate influent was treated using two-stage moving bed biofilm reactor under 24 h and 18 h hydraulic retention time (HRT).

Identification of Highly Potent α-Glucosidase Inhibitors from Artocarpus integer and Molecular Docking Studies.

A new natural Diels-Alder adduct (3) was isolated from the leaves and stem bark of Artocarpus integer, along with seventeen known compounds (1, 2, and 4-18). Structural elucidation was conducted using NMR and HR-ESI-MS data, and comparisons were made with previous studies. Deoxyartonin I (3) exhibited the most potent α-glucosidase inhibition (IC 7.

Treatment efficiency and greenhouse gas emissions of non-floating and floating bed activated sludge system with acclimatized sludge treating landfill leachate.

This research investigates the treatment efficiency and greenhouse gas (GHG) emissions of non-floating and floating bed AS systems with acclimatized sludge treating landfill leachate. The GHGs under study included carbon dioxide (CO), methane (CH), and nitrous oxide (NO). The non-floating and floating bed AS systems were operated in parallel with identical landfill leachate influent under different hydraulic retention time (HRT) conditions (24, 18, and 12 h).

Allodekkera sacchari gen. nov., sp. nov., a yeast species in the Saccharomycetales isolated from a sugar factory.

Three yeast isolates, G5-5(5)T, G5-9(3) and G5-9(4), were obtained from the sugar cane juice and waste from sugar production plant (Korach Industry Co., Ltd) in Korach province, Thailand. They were found to belong to the same species based on DNA sequence identity of the small subunit ribosomal RNA gene (SSU) and the D1/D2 region of the large subunit rRNA gene (LSU D1/D2).