Sato Suguru, Ikeda Hideo, Furukawa Hajime, Murata Yuji, Tomoda Mayuko
Faculty of Horticulture, Chiba University, Matsudo City 271-8510, Japan.
Yakugaku Zasshi. 2004 Oct;124(10):705-9. doi: 10.1248/yakushi.124.705.
Licorice, Glycyrrhiza glabra Linn., is one of herbal medicines widely used for various purposes, including as a sweetener and for gastric ulcer treatment. However, environmental destruction due to the harvesting of wild licorice is becoming a serious problem. We cultured licorice in a hydroponic system to examine the relation between the concentration of nutritional solution applied and glycyrrhizin content to determine the optimal nutrient solution concentration for commercial licorice production. Licorice growth and glycyrrhizin content in the root reached the highest values when the plants received nutrient solution approximately equivalent to a quarter unit of Hoagland solution. The results also indicated that the glycyrrhizin content does not correlate with the concentration of nutrient solution applied and/or inorganic contents absorbed, i.e., licorice may absorb large amounts of nutrient solution but the glycyrrhizin content may not increase.
甘草，光果甘草，是一种被广泛用于各种用途的草药，包括作为甜味剂和治疗胃溃疡。然而，由于野生甘草的采挖导致的环境破坏正成为一个严重的问题。我们在水培系统中培养甘草，以研究施加的营养液浓度与甘草酸含量之间的关系，从而确定商业化甘草生产的最佳营养液浓度。当植株接受大约相当于四分之一单位霍格兰溶液的营养液时，甘草的生长和根部甘草酸含量达到最高值。结果还表明，甘草酸含量与施加的营养液浓度和/或吸收的无机成分含量无关，即甘草可能吸收大量营养液，但甘草酸含量可能不会增加。
