fritillaria sichuanica/антиоксидант

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Preparation, characterization and antioxidant activity evaluation in vitro of Fritillaria ussuriensis polysaccharide-zinc complex.

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The emphasis of this study lies in that we present a novel fluorescence scanning approach to evaluate the antioxidant capacity of Fritillaria ussuriensis polysaccharide-zinc (FUP-Zn) complex. FUP was extracted successfully, and the corresponding FUP-Zn complexes with different substitution degrees

[Physicochemical property and antioxidant activity of exopolysaccharide produced by endophytic fungal Fusarium redolens 6WBY3 isolated from Fritillaria unibracteata var. wabuensis].

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To study the exopolysaccharide (EPS) of endophytic fungal Fusarium redolens 6WBY3 isolated from Fritillaria unibracteata var. wabuensis (FUW) including its antioxidant activities. We isolated the EPS from the culture medium of strain 6WBY3 using the methods of degreasing with organic solvent,

Exopolysaccharides from the fungal endophytic Fusarium sp. A14 isolated from Fritillaria unibracteata Hsiao et KC Hsia and their antioxidant and antiproliferation effects.

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Exopolysaccharides (EPSs) are high-molecular-weight carbohydrates with a wide range of biophysiological activities, such as antioxidant activity, immunostimulatory activity, antitumor activity, hepatoprotective activity, and antifatigue effects. In the present work, two water-soluble EPSs, namely,

Purification and antioxidant activity of a polysaccharide from bulbs of Fritillaria ussuriensis Maxim.

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A water-soluble polysaccharide (FUP-1) was obtained from Fritillaria ussuriensis Maxim through warm water extraction, ethanol precipitation, anion-exchange and gel-permeation chromatography. Structural analysis of this compound revealed that the average molecular weight of FUP-1 was 4.1×10(4)Da, and

Resistance of Fritillaria imperialis to freezing stress through gene expression, osmotic adjustment and antioxidants

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Plant survival in response to freezing stress depends on the efficient activation of tolerance mechanisms. Fritillaria imperialis exposure to freezing stress enhanced signalling molecules Ca²⁺ and H₂O₂ along with overexpression of Ca²⁺ signalling proteins

Fungal endophyte-derived Fritillaria unibracteata var. wabuensis: diversity, antioxidant capacities in vitro and relations to phenolic, flavonoid or saponin compounds.

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Diverse fungal endophytes are rich fungal resources for the production of an enormous quantity of natural products. In the present study, 53 fungal endophytes were isolated from the bulbs of Fritillaria unibracteata var. wabuensis (FUW). Of these, 49 strains were identified and grouped into 17

Optimization of Supercritical Fluid Extraction of Total Alkaloids, Peimisine, Peimine and Peiminine from the Bulb of Fritillaria thunbergii Miq, and Evaluation of Antioxidant Activities of the Extracts.

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Supercritical fluid extraction (SFE) was used to extract total alkaloids, peimisine, peimine and peiminine from the bulb of Fritillaria thunbergii Miq. The antioxidant capacity of the extracts was evaluated by DPPH radical scavenging activity (DPPH-RSA), ABTS radical scavenging activity (ABTS-RSA)

Sequential extraction, characterization and antioxidant activity of polysaccharides from Fritillaria pallidiflora Schrenk.

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In this paper, Fritillaria pallidiflora schrenk polysaccharides were extracted with different methods and isolated by anion-exchange and gel-permeation chromatography. Physicochemical properties, structural characteristics and antioxidant activities were investigated for the first time. The

Dual Regulation of Cell Death and Cell Survival upon Induction of Cellular Stress by Isopimara-7,15-Dien-19-Oic Acid in Cervical Cancer, HeLa Cells In vitro.

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The Fritillaria imperialis is an ornamental flower that can be found in various parts of the world including Iraq, Afghanistan, Pakistan, and the Himalayas. The use of this plant as traditional remedy is widely known. This study aims to unveil the anti-cancer potentials of Isopimara-7,15-Dien-19-Oic

Extraction, purification and antioxidation of a polysaccharide from Fritillaria unibracteata var. wabuensis.

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Rich polysaccharides were directly observed in the bulbs of Fritillaria unibracteata var. wabuensis (FUW) using the periodic acid-Schiff (PAS) method and microexamination. An acidic water-soluble heteropolysaccharide (FWPS1-1) was isolated from FUW through ethanol precipitation, decoloration,

Isosteroid alkaloids from Fritillaria cirrhosa bulbus as inhibitors of cigarette smoke-induced oxidative stress.

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Fritillaria cirrhosa bulbus is a Chinese folk herb famous for its antitussive, expectorant, anti-asthma and anti-inflammatory properties, and is widely used to treat respiratory diseases. However, the impacts of F. cirrhosa bulbus on oxidative stress are still unkown. In the present study, we

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