Laboratory of Functional Biology, Katholieke Universiteit Leuven, Kasteelpark Arenberg 31, BP 2436, B-3001 Heverlee, Belgium.
J Nat Prod. 2013 Jun 28;76(6):1201-28. doi: 10.1021/np400203b. Epub 2013 May 28.
Steviol glycosides are a group of highly sweet diterpene glycosides discovered in only a few plant species, most notably the Paraguayan shrub Stevia rebaudiana. During the past few decades, the nutritional and pharmacological benefits of these secondary metabolites have become increasingly apparent. While these properties are now widely recognized, many aspects related to their in vivo biochemistry and metabolism and their relationship to the overall plant physiology of S. rebaudiana are not yet understood. Furthermore, the large size of the steviol glycoside pool commonly found within S. rebaudiana leaves implies a significant metabolic investment and poses questions regarding the benefits S. rebaudiana might gain from their accumulation. The current review intends to thoroughly discuss the available knowledge on these issues.
甜菊糖苷是一组在少数植物物种中发现的高甜度二萜糖苷,其中最著名的是巴拉圭甜叶菊 Stevia rebaudiana。在过去的几十年中,这些次生代谢物的营养和药理作用变得越来越明显。虽然这些特性现在已经得到广泛认可,但与它们在体内的生物化学和代谢以及与 S. rebaudiana 整体植物生理学的关系相关的许多方面仍未得到理解。此外,在甜叶菊叶片中常见的甜菊糖苷库的巨大规模意味着大量的代谢投入,并提出了有关甜叶菊可能从其积累中获得的收益的问题。本综述旨在深入讨论有关这些问题的现有知识。