Evaluation of Environmental Factor Effects on the Polyphenol and Flavonoid Content in the Leaves of L. and Its Habitat Suitability Prediction Mapping.

The leaves of L. are known to have various bioactive compounds; however, industrial use is extremely limited. To overcome this situation by producing high-quality leaves with high bioactive content, this study examined the environmental factors affecting the phytochemical content and antioxidant activity using leaves collected from 22 sites in Kochi Prefecture, Japan.

Phytochemical Analysis and Habitat Suitability Mapping of L. Collected in the Hatay Region of Turkey.

The growth and quality of licorice depend on various environmental factors, including the local climate and soil properties; therefore, its cultivation is often unsuccessful. The current study investigated the key factors that affect the contents of bioactive compounds of L. root and estimated suitable growth zones from collection sites in the Hatay region of Turkey.

Rhusflavanone and mesuaferrone B: tyrosinase and elastase inhibitory biflavonoids extracted from the stamens of L.

Chemical isolation and bioactivity studies were conducted on the stamens of L., which are being used in a traditional skincare formulation in Myanmar. Rhusflavanone and mesuaferrone B were obtained as the main biflavonoids together with lupeol, five common flavonoids, and five phenolic compounds.

The corrected structure of depressoside, an antioxidative iridoid glucoside extracted from the flowers of Gentiana urnula Harry Sm.

Three known iridoid glucosides (gentiournoside A, gentiournoside E and depressoside) were isolated from the flowers of Gentiana urnula Harry Sm. through activity-guided fractionations with a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. All three compounds exhibited excellent DPPH radical scavenging activities (IC50: 10-20 μmol L(-1)) comparable to that of ascorbic acid and Trolox.

Large-scale production of saikosaponins through root culturing of Bupleurum falcatum L. using modified airlift reactors.

Modification of internal configuration of a bubble column, airlift and stirred tank reactor (10-200 L) was made for root cultures of Bupleurum falcatum L. Agitation with an impeller covered with partition mesh was ineffective for a 10-L modified reactor, because it caused intensive foaming and subsequent overflow of the culture medium even at a low rotation speed of 50 rpm and a low aeration rate of 0.1 vvm (volume per volume of medium).