Abstract
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 Glycyrrhiza glabra L. root and estimated suitable growth zones from collection sites in the Hatay region of Turkey. The contents of three bioactive compounds (glycyrrhizic acid, glabridin, and liquiritin), soil factors (pH, soil bearing capacity, and moisture content), and geographical information (slope, aspect, curvature, elevation, and hillshade) were measured. Meteorological data (temperature and precipitation) were also obtained. An analysis of variance (ANOVA) and multivariate analysis of variance (MANOVA) were performed on the data. The soil bearing capacity, moisture content, slope, aspect, curvature, and elevation of the study area showed statistically significant effects on the glycyrrhizic acid and liquiritin contents. A habitat suitability zone map was generated using a GIS-based frequency ratio (FR) model with spatial correlations to the soil, topographical, and meteorological data. The final map categorized the study area into four zones: very high (15.14%), high (31.50%), moderate (40.25%), and low suitability (13.11%). High suitability zones are recommended for further investigation and future cultivation of G. glabra.
Highlights
Glycyrrhiza, known as licorice, is a perennial herbal plant belonging to the Fabaceae family.There are approximately 20 known species of Glycyrrhiza distributed worldwide that have great economic value [1]
Glycyrrhizic acid, glabridin,isoliquiritin, due to the wide distribution of licorice, bioactive contents and their liquiritin, licoflavanone, pinocembrin, andtheprunetin arecompound some of many bioactive biological activities can vary widely both in and between countries depending on geographical compounds that can be isolated from licorice root and leaves, and are responsible for its wide range and environmental
Glabridin and liquiritin were detected efficiently at UV 210 nm, whereas glycyrrhizic acid was at 254detected nm. at 254 nm
Summary
Glycyrrhiza, known as licorice, is a perennial herbal plant belonging to the Fabaceae family.There are approximately 20 known species of Glycyrrhiza distributed worldwide that have great economic value [1]. Molecules 2020, 25, 5529 isoliquiritin, licoflavanone, pinocembrin, and prunetin are some of many bioactive compounds that can Molecules 2020, 25, x FOR PEER REVIEW of 14 be isolated from licorice root and leaves, and are responsible for its wide range of activities, 2including anti-inflammatory, antioxidant, and anti-proliferative effects [2,3]. Glycyrrhizic acid, glabridin, ,isoliquiritin, due to the wide distribution of licorice, bioactive contents and their liquiritin, licoflavanone, pinocembrin, andtheprunetin arecompound some of many bioactive biological activities can vary widely both in and between countries depending on geographical compounds that can be isolated from licorice root and leaves, and are responsible for its wide range and environmental [4,5].
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