Flavonol glycosides and iridoids from asperula lilaciflora

A new flavonol glycoside, quercetin 3-O-[6’’’-O-3,5-dihydroxycinnamoyl-b-glucopyranosyl-(1!2)]-b-galactopyranoside (named lilacifloroside; 1) and a new iridoid 2 (named asperulogenin), were isolated from the aerial parts of Asperula lilaciflora in addition to eight known secondary metabolites, i.e.,quercetin, kaempferol, quercetin 3-O-b-glucopyranosyl-(1!2)-b-galactopyranoside, quercetin 3-O-bglucopyranosyl-(1!2)-arabinopyranoside, asperuloside, deacetylasperulosidic acid, asperulosidic acid methyl ester, and chlorogenic acid. The structures were elucidated on the basis of extensive 1D- and 2DNMR experiments as well as MS data. Compound 1 contains the rare 3,5-dihydroxycinnamoyl moiety in its structure. This work constitutes the first phytochemical study of the title plant

Sequential treatment of olive oil mill wastewater with adsorption and biological and photo-Fenton oxidation

WOS: 000318175400033PubMed: 23054778Olive oil mill wastewater (OMWW), a recalcitrant pollutant, has features including high phenolic content and dark color; thereby, several chemical or physical treatments or biological processes were not able to remediate it. In this study, the treatment efficiencies of three treatments, including adsorption, biological application, and photo-Fenton oxidation were sequentially evaluated for OMWW. Adsorption, biological treatment, and photo-Fenton caused decreasing phenolic contents of 48.69 %, 59.40 %, and 95 %, respectively. However, after three sequential treatments were performed, higher reduction percentages in phenolic (total 99 %) and organic contents (90 %) were observed. Although the studied fungus has not induced significant color reduction, photo-Fenton oxidation was considered to be an attractive solution, especially for color reduction. Besides, toxicity of OMWW treatment was significantly reduced