Bioactive Materials and Biological Activity in the Extracts of Leaf, Stem Mixture and Root from Angelica gigas Nakai

Abstract

The bioactive materials (phenolic compounds, flavonoids, minerals, decursin and decursinol angelate) and biological activities (DPPH [α,α'-diphenyl-β-picrylhydrazyl] free radical scavenging capability, reducing power, and tyrosinase activity) in the extracts of leaf, stem mixture (AGLS), and root (AGR) from Angelica gigas Nakai were examined by using water, hot water and ethanol solvent. The highest extract yield (21.89%) was found in the water extract of AGR. The highest concentrations of phenolic compounds and flavonoids in the ethanol extracts of AGLS and AGR were 14.99% and 14.79%. Major minerals of AGLS and AGR were K, Mg, Fe, Na and Ca. Decursin and decursinol angelate were the major ingredients of Angelica gigas, detected at 18.71 and 18.89 min of retention time by HPLC analysis, respectively. The highest concentrations of decursin and decursinol angelate in the Angelica gigas ethanol extract were found in root (41.7 μg/g ) and leaf (34.04 μg/g). The highest free radical scavenging activity was found in the hot water extracts of AGLS and AGR, and its activity was stronger in all extracts of AGLS than AGR. The highest reducing power was found in the ethanol extracts of AGLS and AGR and this was dependent on the sample concentration. The hot water extracts of AGLS and AGR revealed the highest inhibition activity on tyrosinase. Overall, these results may provide the basic data needed to understand the biological activities of bioactive materials derived from Angelica gigas.

Investigation Potential Antidiabetic Activity of Angelica gigas Nakai Leaf Extract

“…Angelica gigas Nakai, a perennial plant of the Apiaceae family, has a dark green stem, and a height of 1.0-1.5. m, a ower of a purplish color, and its owering period is from August to September. Perennial herbs are distributed in Korea, China, and Japan, cultivated differently between regions and used as herbal medicine (Heo et al, 2010). The Angelica gigas grown in Korea is different from Angelica sinensis Diels (Chinese Angelica gigas) and Angelica acutiloba Kitagawa (Japanese Angelica gigas) (Zhao et al, 2005).…”

Changes in growth and active components of Angelica gigas Nakai in different cultivation environments

“…The components of the coumarin type include decursin, decursinol angelate, umbelliferone, nodakenin, peucedanone, armesin, demethylsuberosin, and isoimperatorin [10]. Among these various constituents, the main active compounds are known to be decurin, decursinol angelate and nodakenin [11][12][13]. Secondary metabolites such as these compounds affect plant growth and survival rate under abiotic stress [14].…”