Development of selection method for superior clones with high-glycyrrhizic acid contents using DNA sequence polymorphisms in glycyrrhizic acid biosynthetic genes.

plants are important resources for sweeteners and medicines, because underground parts of them contain glycyrrhizic acid (GL), which has sweet taste and various pharmacological activities (ex. anti-inflammatory, antiallergy, antiviral activity, etc.).

Correction: Population Genetic Structure of Glycyrrhiza inflata B. (Fabaceae) Is Shaped by Habitat Fragmentation, Water Resources and Biological Characteristics.

[This corrects the article DOI: 10.1371/journal.pone.

Population Genetic Structure of Glycyrrhiza inflata B. (Fabaceae) Is Shaped by Habitat Fragmentation, Water Resources and Biological Characteristics.

Background: Habitat fragmentation, water resources and biological characteristics are important factors that shape the genetic structure and geographical distribution of desert plants. Analysis of the relationships between these factors and population genetic variation should help to determine the evolutionary potential and conservation strategies for genetic resources for desert plant populations. As a traditional Chinese herb, Glycyrrhiza inflata B.

[Determination of the Plant Origin of Licorice Oil Extract, a Natural Food Additive, by Principal Component Analysis Based on Chemical Components].

"Licorice oil extract" (LOE) (antioxidant agent) is described in the notice of Japanese food additive regulations as a material obtained from the roots and/or rhizomes of Glycyrrhiza uralensis, G. inflata or G. glabra.

The isolation and structure elucidation of minor isoflavonoids from licorice of Glycyrrhiza glabra origin.

Two new isoflavanone and one new 3-arylcoumarin derivatives, along with a known compound 3,4-didehydroglabridin, were isolated from commercially available licorice of Glycyrrhiza glabra origin, and their structures were elucidated on the basis of both the chemical and spectroscopic evidence.

Antioxidative components of Psoralea corylifolia (Leguminosae).

A meroterpene and four flavonoids were isolated from the seeds of Psoralea corylifolia as antioxidative components. Their structures were elucidated by spectral data and identified as bakuchiol (1), bavachinin (2), bavachin (3), isobavachin (4) and isobavachalcone (5). In particular, meroterpene 1 and flavonoids 4 and 5 showed broad antioxidative activities in rat liver microsomes and mitochondria.