Construction of biomass-derived magnetic-recyclable FeNi-LDO@CS to activate persulfate for simultaneous degradation of cationic and anionic dyes: Discrepancy, mechanism and toxicity analysis.

In this study, layered chitosan-based magnetic nickel ferrite NiFeO/chitosan (CS-LDO) composites were synthesized. The results show that under optimal conditions, 98 % of methylene blue (MB) and 92 % of xylenol orange (XO) can be simultaneously degraded within 120 min in the CS-LDO/persulfate (PS) system, and the removal rates of total organic carbon (TOC) and chemical oxygen demand (COD) can reach 67.32 % and 74.

Water-soluble polysaccharides from finger citron fruits (Citrus medica L. var. sarcodactylis).

Four water-soluble polysaccharides, FCp-1, FCp-2, FCp-3, and FCp-4 were obtained from finger citron fruits (Citrus medica L. var. sarcodactylis) by hot-water extraction and ethanol precipitation, followed by routine separation procedure.

An arabinogalactan from flowers of Chrysanthemum morifolium: structural and bioactivity studies.

A water-soluble polysaccharide (P2) with a molecular weight of 1.7×10(5)Da was isolated from the hot aqueous extract of flowers of the Chrysanthemum morifolium. It was homogeneous for there was only a symmetrical peak on the spectrum of high-performance gel permeation chromatography.

Cytotoxic triterpenoids from Lysimachia parvifolia.

Five new oleanane-type triterpenoids, including two aglycones, 13β-28-epoxy-3β,22α,23-trihydroxyolean-16-one (1) and 13β-28-epoxy-22α,23-dihydroxyolean-3,16-dione (2), and three glycosides, anagalligenone-3-O-α-L-arabinopyranoside (3), anagalligenone-3-O-[β-D-glucopyranosyl(1 → 4)-α-L-arabinopyranoside] (4) and anagalligenone-3-O-[β-D-xylopyranosyl(1 → 2)-β-D-glucopyranosyl(1 → 4)-α-L-arabinopyranoside] (5), were isolated from the aerial parts of Lysimachia parvifolia, together with three known oleanane-type triterpenoid glycosides (6-8). The structures of the new compounds were subsequently elucidated by spectroscopic analysis and their cytotoxicities evaluated against six human cancer cell lines. Compounds 5-8 exhibited significant cytotoxicities against all the cell lines tested, with IC50 values lower than 10 μM.