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Isorhamnetin and Quercetin Derivatives as Anti-Acetylcholinesterase Principles of Marigold (Calendula officinalis) Flowers and Preparations

The presented results suggest that isorhamnetin and quercetin and its glycosides can be considered as potential anti-acetylcholinesterase agents.
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Bioactive Phenolics of the Genus Artemisia (Asteraceae): HPLC-DAD-ESI-TQ-MS/MS Profile of the Siberian Species and Their Inhibitory Potential Against α-Amylase and α-Glucosidase

The results obtained in this study reveal that Siberian Artemisia species and CQAs possess a pronounced inhibitory activity against α-amylase and α-glucosidase and could become a complement to synthetic antidiabetic drugs for controlling blood glucose level.
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6″-Galloylpicein and other phenolic compounds from Arctostaphylos uva-ursi

Phenolic compounds from leafy shoots of A. uva-ursi (Ericaceae) were studied. The new phenolic glycoside 6″-galloylpicein and 40 known compounds were isolated. Roots of A. uva-ursi afforded 16…
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New Mucic Acid Gallates from Phyllanthus emblica

Two new compounds that were identified as mucic acid 2,5-di-O-gallate (1) and mucic acid 2,5-di-O-gallate 1,4-lactone (2) and 14 known compounds, including for the first time in a plant…
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Caucasian Gentiana Species: Untargeted LC-MS Metabolic Profiling, Antioxidant and Digestive Enzyme Inhibiting Activity of Six Plants

The findings presented in this work suggest that the Caucasian gentians are a good source of bioactive phytocompounds with antioxidant and antidiabetic potential.
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Water-soluble endopolysaccharides from the fruiting bodies of Laetiporus sulphureus (Bull.:Fr.) Murr.

The study of the major 56-kDa polysaccharide, laetiporan A, showed that it is a β-1,3-glucan containing mannose, galactose, fucose, xylose, and rhamnose residues at position C-6.
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Quantitative determination of phenolic compounds in Mentha piperita leaves

A spectrophotometric method using a dual-wavelength Firordt method that enabled simultaneous determination of the flavonoid and phenolic-acid contents was developed for quantitative analysis of…
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A quantitative assay for total fructans in burdock (Arctium spp.) roots

AbstractsA quantitative assay of the total content of polysaccharides (fructans) in burdock roots in fructose equivalent has been elaborated. Extraction of free carbohydrates and polysaccharides has…
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Chemical composition of fruiting bodies from two strains of Laetiporus sulphureus

Irkutsk, ul. Lermontova, 132, fax (3952) 51 07 42, e-mail: agafonova@sifibr.irk.ru; 2) Institute of General and Experimental Biology, Siberian Division, Russian Academy of Sciences, 670047, Ulan-Ude,…
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Meadowsweet Teas as New Functional Beverages: Comparative Analysis of Nutrients, Phytochemicals and Biological Effects of Four Filipendula Species

The bioactivity data demonstrated a good ability of meadowsweet teas to inhibit amylase, α-glucosidase and AGE formation, and the anti-complement activity of the water-soluble polysaccharide fraction of meadowweet tea indicated their possible immune-modulating properties.
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