Advances in the study of the biological function of Daxx

Liu, Jinhong; Xiong, Guozuo; Liao, Duan‐Fang; Tuo, Qin-Hui

doi:10.5897/ajpp12.209

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…Lyon (ST) is primarily distributed in Eastern Asia and is commonly consumed as folk medicine for the prevention of asthma and coughs in China [1]. ST presents cool character, slightly bitter taste, and possesses heat-clearing and detoxification properties [2,3]. The antiasthmatic effect of ST has been widely investigated, which was presumably ascribed to its regulation of Th1/Th2 balance and inhibition of cysteinyl leukotriene receptor-1 [4,5].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive evaluation of the antioxidant capacity of Sceptridium ternatum using multiple colorimetric methods and 1,1‐diphenyl‐2‐picrylhydrazyl–high‐performance liquid chromatography analysis

Zhu

Zhong

Kong

et al. 2020

J of Separation Science

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Sceptridium ternatum is a medicinal herb with multiple health benefits. However, its antioxidant activity and active components have not been clarified. In this study, the antioxidant capacity of S. ternatum was comprehensively investigated using multiple colorimetric methods and 1,1‐diphenyl‐2‐picrylhydrazyl–high‐performance liquid chromatography analysis. First, the phenolic content, flavonoid content, and radical scavenging ability of S. ternatum were parallelly determined using colorimetric methods performed in 96‐well microplates. The flavonoid content, rather than the phenolic content, was highly correlated with its antioxidant activity. Sceptridium ternatum was shown to be a rich source of flavonoids, with a highest flavonoid yield of 3.44 ± 0.11 mg/g. Subsequently, 1,1‐diphenyl‐2‐picrylhydrazyl–high‐performance liquid chromatography experiment and quadrupole time‐of‐flight mass spectrometry analyses were carried out for rapid screening of the individual antioxidants. A total of 14 O‐glycosyl flavonoids with quercetin or kaempferol aglycone have been characterized. Particularly, quercetin 3‐O‐rhamnoside‐7‐O‐glucoside exhibited the most potent antioxidant ability. Its half‐maximal effective concentrations for scavenging 1,1‐diphenyl‐2‐picrylhydrazyl and 2,2ʹ‐azino‐bis (3‐ethylbenzthiazoline‐6‐sulfonic acid) radicals were 70.55 ± 2.69 and 106.90 ± 1.76 µg/mL, respectively, which were comparable with those of l‐ascorbic acid. Our results indicated that the combined colorimetric and chromatographic methods provided a practical strategy for the discovery of bioactive compounds from natural products.

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