Characterization and antioxidant activities of polysaccharide extracted from Benincasa hispida var. chieh-qua How

WANG, Kuiwu; Sheng, Xin-Yuan; CHEN, Xinjuan; Zhu, Xiaodan; Yang, Chuang

doi:10.1590/fst.88421

Cited by 9 publications

(7 citation statements)

References 21 publications

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“…The scavenging capacity of four polysaccharides (cPRP, PRP0, PRP1 and PRP2) on 2,2-difenil-1-picril-hidrazil (DPPH) and hydroxyl radicals (•OH) was evaluated according to previous methods ( Wang et al, 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Structure characterization of novel heteropolysaccharides from Pteridium revolutum with antioxidant and antiglycated activities

Wang

Sheng

et al. 2023

Food Chemistry: X

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Section: Methodsmentioning

confidence: 99%

Structure characterization of novel heteropolysaccharides from Pteridium revolutum with antioxidant and antiglycated activities

Wang

Sheng

et al. 2023

Food Chemistry: X

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“…The study by Chen et al (2019) also showed that the DPPH free radical scavenging ability was gradually increased with a decrease in the molecular weight of fucoidan at the same concentration (Chen et al, 2019). Wang et al (2022) reported that after hot water extraction, ethanol precipitation, and deproteinization by Sevage method, the Benincasa hispida polysaccharide showed preferable scavenging ability against DPPH free radicals and the higher the dose, the better the scavenging effect (Wang et al, 2022).…”

Section: Effect Of Molecular Weight On Dpph Radical Scavenging Activitymentioning

confidence: 95%

Preparation of low molecular weight Enteromorpha prolifera polysaccharide and its antioxidant and tyrosinase inhibitory activities

Que

Wang

et al. 2022

Food Sci. Technol

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Enteromorpha prolifera polysaccharide (EP) is a water-soluble sulfated polysaccharide with many types of biological activities. In this study, the crude polysaccharide was extracted from Enteromorpha prolifera and degraded by different physical, chemical, and biological methods. The results showed that the enzymatic degradation products displayed the best tyrosinase inhibitory activity. The optimal enzymatic degradation conditions were as follows: 30 °C, pH 5.5, 750 U/mL enzyme dosage for 2 h. The enzymatic hydrolysates were then divided into six EP fractions (EPFs) by an ultrafiltration membrane. The in vitro tyrosinase inhibitory activity of these fractions showed that the smaller the molecular weight of EPF, the better the inhibitory effect on tyrosinase. The antioxidant and tyrosinase inhibitory effect of the most effective EPF, a molecular weight below 5 kDa, (EPF5), was further confirmed on B16 cells. A kinetic study of tyrosinase inhibitory activity revealed that EPF5 is a competitive-uncompetitive mixed-type inhibitor of tyrosinase. These findings suggested that EPF5 has significant potential as a skin-whitening agent in cosmetics as well as an antibrowning agent in the food and agriculture industries.

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“…DPPH and ABTS radical cation scavenging activity were measured using the method reported before 23,24 .…”

Section: Antioxidant Activitymentioning

confidence: 99%

Effects of high temperature treatment on the stability and biological activity of catechins compounds

Wang,

Yang,

et al. 2023

Preprint

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The thermal stability and the transformation mechanism of five representative catechins compounds were studied using HPLC-QTOF-MS. The effects of high temperature treatment on the antioxidant, anti-glycation, and enzyme inhibitory activities of catechins compounds were evaluated in vitro. The thermal stability is as follows: ECG > EGCG > Cat > EC > EGC. The increase of hydroxyl groups in the B-ring is not conducive to the stability, while the substitution of Gallic acid is beneficial for the stability of catechins compounds. After heating treatment, the antioxidant activity decreased, while the anti-glycation activity and the inhibitory effects on three enzymes increased significantly. Molecular docking simulation analysis indicated that the degradation product Gallic acid had better binding effect with α-amylase, α-glucosidase, and tyrosinase than ECG, which was one of the reasons for the increased inhibitory activity on enzymes of catechins after heating treatment.

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Characterization and antioxidant activities of polysaccharide extracted from Benincasa hispida var. chieh-qua How

Cited by 9 publications

References 21 publications

Structure characterization of novel heteropolysaccharides from Pteridium revolutum with antioxidant and antiglycated activities

Structure characterization of novel heteropolysaccharides from Pteridium revolutum with antioxidant and antiglycated activities

Preparation of low molecular weight Enteromorpha prolifera polysaccharide and its antioxidant and tyrosinase inhibitory activities

Effects of high temperature treatment on the stability and biological activity of catechins compounds

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