Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.
Department of Food Biochemistry and Analysis, Poznań University of Life Sciences, Mazowiecka 48, 60-623 Poznań, Poland.
Molecules. 2022 Nov 3;27(21):7543. doi: 10.3390/molecules27217543.
Among the different Hawthorn species, seems to be one of the most often used in herbal medicine, and is commercially available. The methanolic extract and the acidified methanol extract of an herbal medicinal product based on inflorescences were analyzed by using high-pressure liquid chromatography/electrospray ionization mass spectrometry (HPLC/ESI-MS). On the basis of of [M-H] ions and characteristic fragmentation patterns, a number of polyphenolic compounds, namely flavonoids and chlorogenic acids, were identified. It was found that the contents of the acid extract were enriched with methyl chlorogenates showing attractive biochemical properties. Analogous results were obtained for other plant materials, e.g., nectarine kernels. Apart from that, acid extraction had a minor influence on the polyphenolic compounds present in the plants, and thus it did not affect the natural antioxidant values of the plant extracts.
在不同的山楂属植物中，山楂似乎是最常用于草药的一种，并且有商业供应。基于山楂花的草药产品的甲醇提取物和酸化甲醇提取物，采用高效液相色谱/电喷雾电离质谱法（HPLC/ESI-MS）进行了分析。基于[M-H]离子和特征裂解模式，鉴定了多种多酚类化合物，即类黄酮和绿原酸。研究发现，酸提取物中富含具有吸引人的生化特性的甲基绿原酸盐。其他植物材料，如油桃仁，也得到了类似的结果。除此之外，酸提取对植物中存在的多酚类化合物的影响较小，因此不会影响植物提取物的天然抗氧化值。
