Phytochemical Characterization of Low Molecular Weight Constituents from Marshmallow Roots (<i>Althaea officinalis</i>) and Inhibiting Effects of the Aqueous Extract on Human Hyaluronidase-1
作者:Jandirk Sendker、Ines Böker、Isabelle Lengers、Simone Brandt、Joachim Jose、Timo Stark、Thomas Hofmann、Careen Fink、Heba Abdel-Aziz、Andreas Hensel
DOI:10.1021/acs.jnatprod.6b00670
日期:2017.2.24
Extract RE was obtained from the roots of Althaea officinalis in a yield of 8.1%, related to the dried plant material, by extraction with MeOH–H2O (1:1), followed by precipitation with EtOH to remove high molecular weight constituents. Phytochemical investigation of RE revealed the presence of N-phenylpropenoyl-l-amino acid amides 1–5, 8% glycine betaine 6, about 9% total amino acids with proline as
提取物RE是从山茱的根中提取的,相对于干燥的植物材料,其提取率为8.1%,方法是用MeOH-H 2 O(1:1)提取,然后用EtOH沉淀以除去高分子量成分。的植物化学物质调查RE揭示的存在Ñ -phenylpropenoyl-升-氨基酸酰胺1 - 5,8%甘氨酸甜菜碱6,约总9%的氨基酸用脯氨酸为主要化合物酸,以及约61%单-和低聚碳水化合物与蔗糖为主要化合物。进一步分馏显示存在次黄素二糖苷(12)和四个带有O-磺基碳水化合物部分的次黄素苷(7 – 9和11);另外,4'- ö -methylisoscutellarein -8- ö -β- d - (3“ -直径:磺基)glucuronopyranoside(10)和所述diglycosylated香豆素haploperoside d(13)进行了鉴定。该hypolaetin- Ø -sulfoglycosides 7 - 10是新的天然产品。RE通过IC