Neoisoastilbin 具有抗炎、抗氧化、抗尿酸过多等生物特性。

Neoisoastilbin may have antioxidant and anti-inflammatory activities.

Phenolic-enriched extract of S. glabra (PEESG) was extracted with 70% ethanol and purified by HP-20 column chromatography. Its antioxidant and anti-inflammatory activities were evaluated by radical scavenging assay, reducing power determination, and lipopolysaccharide (LPS)-induced RAW264.7 cells assays, respectively. PEESG exhibited obviously scavenging capacity for DPPH and ABTS radicals, as well as significant reducing power for ferric ion. Particularly, PEESG (12.5-50 μg/mL) showed a significantly higher efficiency for scavenging ABTS than that of ascorbic acid and no significant difference with ascorbic acid for DPPH scavenging. PEESG also possessed a significant suppression effect on proinflammatory mediators production, such as nitric oxide (NO), tumor necrosis factor-α± (TNF-α±), and interleukin-6 (IL-6), in LPS-induced RAW264.7 cells. In addition, the main ingredients of PEESG were identified using ultrahigh pressure liquid chromatography coupled to electrospray mass spectrometry (U-HPLC-ESI-MS). Seventeen components, including 5-O-caffeoylshikimic acid, neoastilbin, astilbin, Neoisoastilbin, isoastilbin, engetin and isoengeletin were identified.

54141-72-9

C21H22O11

450.4

DMSO:55 mg/ml (122.11 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years