Structural and physicochemical characterization of a novel water-soluble polysaccharide isolated from Dorema ammoniacum

Ebrahimi, Behzad; Ghanbarzadeh, Babak; Rad, Aziz Homayouni; Hemmati, Salar; Moludi, Jalal; Arab, K.; Karimi, Shafagh

doi:10.1007/s00289-021-03952-y

Cited by 1 publication

(1 citation statement)

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“…Following published methods (Ebrahimi et al., 2021 ), GPC was used to determine PYB molecular weights (Mw). Samples (2 mg/mL, 20 μL) were injected into the GPC instrument, with a mobile phase of double‐distilled water (1 mL/min).…”

Section: Methodsmentioning

confidence: 99%

Antifatigue effects and antioxidant activity in polysaccharide fractions from Chinese yam bulbils

Zhou,

Zhang,

Huang

et al. 2023

Food Science & Nutrition

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Polysaccharides are the principal component in Chinese yam (Dioscorea opposita Thunb.) bulbils. The properties and antifatigue of polysaccharides from yam bulbils (PYB) were identified and compared. Their molecular weights (PYB‐1 and PYB‐2) were approximately 145 and 11 kDa, respectively, with active β‐configurations. Meanwhile, the antifatigue activities of PYBs were tested in mice via exhaustive swimming tests (EST). The EST results indicated that PYB‐1 and PYB‐2 significantly prolonged swimming time in mice (p < .05). Associated with this increase was a rise in hepatic glycogen content and antioxidant enzyme (superoxide dismutase (SOD), glutathione peroxidase (GSH‐Px)) activity, along with a decline in blood urea nitrogen, lactic acid, and malondialdehyde levels. The results showed that molecular weight might contribute to the antifatigue effects of PYBs. Additionally, antioxidant tests showed that PYB‐1 had stronger free‐radical scavenging activity than PYB‐2. Taken together, the findings indicated that PYBs exhibited effective antifatigue and antioxidant activities providing additional evidence supporting the use of PYBs as functional food ingredients for relieving fatigue.

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Section: Methodsmentioning

confidence: 99%