Biological activities and phytochemical content of the rhizome hairs of Cibotium barometz (Cibotiaceae)

Autor: Jun Jie Ban, Nam Weng Sit, Yunn Wen Heng, Kong Soo Khoo
Rok vydání: 2020
Předmět:
Zdroj: Industrial Crops and Products. 153:112612
ISSN: 0926-6690
DOI: 10.1016/j.indcrop.2020.112612
Popis: Cibotium barometz (L.) J.Sm. (Cibotiaceae) is a tropical tree fern and its rhizome is used in many traditional medicines. The hairs covering the rhizome are usually removed before use. This study aims to evaluate the rhizome hairs for phytochemical content, antioxidant and antimicrobial activities, as well as metabolites profiling of the ethyl acetate extract using gas chromatography–mass spectrometry (GC–MS). The rhizome hairs were extracted sequentially using hexane, chloroform, ethyl acetate, ethanol, methanol, and water. Qualitative analysis indicates that the extracts contained anthraquinones, flavonoids, phenolics, tannins, phytosterols, and triterpenoids. The total phenolic and flavonoid contents of the extracts were 0.37−266 mg gallic acid equivalents/g sample and 4.57−113 mg quercetin equivalents/g sample, respectively. The ethyl acetate extract had the strongest antioxidant activity with the highest ferric-reducing antioxidant power (FRAP) value (35.1 mmol FeSO4 equivalents/mg sample), the highest oxygen radical absorbance capacity (ORAC) value (4.91 mmol Trolox equivalents/mg sample), and the lowest half-maximum effective concentration (6.50 μg/mL) for DPPH radical scavenging activity. A high positive correlation (P
Databáze: OpenAIRE