Fucan is a term used to denominate a type of polysaccharide which contains substantial percentages of l-fucose and sulfate ester groups. We obtained five heterofucans from Sargassum filipendula by proteolytic digestion followed by sequential acetone precipitation. These heterofucans are composed mainly of fucose, glucose, glucuronic acid, galactose and sulfate. These fucans did not show anticoa...

In theory, plants could induce resistance to herbivores after being directly grazed or after sensing cues from the grazing of neighboring plants (i.e., the ‘‘talking trees’’ effect). Despite an extensive literature on induced defenses in plants, the relative importance of direct attack versus cues from neighbors in mediating induction is not well understood; this is especially true for seaweeds...

In this study, antioxidant and antimicrobial potentials of Usnea intermedia, U. filipendula, and U. fulvoreagens and their stictic and usnic acid contents were investigated. Antioxidant activity and total phenolic contents were evaluated in acetone, ethanol, and methanol extracts of these three species. Antioxidant activity was measured by ABTS [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic...

Biomass pretreatment followed by enzymatic hydrolysis is one of the most viable ways to obtain sugars from biomass. In this work, effect combined alkaline and Deep Eutectic Solvent on enzyme Hyparrhenia filipendula cellulase investigated. There no previously reported literature substrate authors aim establish baseline values for further research in utilization filipendula. The yellow thatching ...

White willow Salix alba L., a member of the family Salicaceae is characterized by presence phenolic compounds and their glycosides (1.5–11.0 %), such as salicin, salicortin, salireposide, picein, triandrin, syringin, tremulacin, flavonoids (1–4 %) namely luteolin, apigenin, quercetin, quercimeritrin, cosmosin, diosmetin, tannins (8–20 i.e. catechins, anthocyanidins, halotanines organic acids, a...

Identifying the floral composition of honey provides a method for investigating the plants that honey bees visit. We compared melissopalynology, where pollen grains retrieved from honey are identified morphologically, with a DNA metabarcoding approach using the rbcL DNA barcode marker and 454-pyrosequencing. We compared nine honeys supplied by beekeepers in the UK. DNA metabarcoding and melisso...

in this study, antioxidant and antimicrobial potentials of usnea intermedia, u. filipendula, and u. fulvoreagens and their stictic and usnic acid contents were investigated. antioxidant activity and total phenolic contents were evaluated in acetone, ethanol, and methanol extracts of these three species. antioxidant activity was measured by abts [2,2'-azino-bis(3-ethylbenzothiazoline-6-sulp...