Chromatographic Analysis of Orchid Extracts and Quantum Chemical Calculations of Individual Components Interaction with Silica

IF 0.5 Q4 CHEMISTRY, MULTIDISCIPLINARY

Chemistry Journal of Moldova Pub Date : 2020-06-01 DOI:10.19261/cjm.2020.694

O. Kazakova, R. Ivannikov, I. Laguta, O. Stavinskaya, V. Anishchenko, Olga Severinovska, L. Buyun

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引用次数: 2

Abstract

The aim of the work was to identify the main components of orchid extracts and to study their interaction with silica. Composition of sixteen orchid extracts was investigated by means of high performance liquid chromatography and laser desorption/ionization mass spectrometry; as it was shown in this study, flavonoids and phenolic acids were the main bioactive compounds available in the extracts. The interaction between various phenols and silica silanol groups was studied by quantum chemical method. Results show that the strength of interaction of phenols with silica increased in the following order: ferullic, feruloylquinic and fertaric acids< kaempferol, apingenin<< сhlorogenic and caffeic acids, rhamnetin, quercetin, luteolin, epicatechin gallate. The common feature of compounds characterized by the strongest interaction with silanol groups is the presence of a phenol ring with two neighbouring hydroxyl groups. The hydrogen bonds formed between these groups and silanol groups are much shorter (about 0.17 nm) than those formed by other hydroxyl groups of phenols (up to 0.28 nm).

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兰花提取物的色谱分析及各组分与二氧化硅相互作用的量子化学计算

目的是鉴定兰花提取物的主要成分，并研究其与二氧化硅的相互作用。采用高效液相色谱和激光解吸/电离质谱法对16种兰花提取物的成分进行了研究;本研究表明，黄酮类化合物和酚酸是提取物中主要的生物活性化合物。采用量子化学方法研究了不同酚类化合物与硅烷醇基团的相互作用。结果表明，酚类化合物与二氧化硅的相互作用强度依次为阿魏酸、阿魏酰奎宁和铁酸<山奈酚、芹菜素<绿原咖啡酸、鼠李素、槲皮素、木犀草素、表儿茶素没食子酸酯。与硅烷醇基团相互作用最强的化合物的共同特征是存在一个带有两个相邻羟基的酚环。这些基团与硅醇基团之间形成的氢键比其他酚羟基形成的氢键(最长0.28 nm)短得多(约0.17 nm)。

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来源期刊

Chemistry Journal of Moldova CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

12 weeks

期刊介绍： "Chemistry Journal of Moldova. General, Industrial and Ecological Chemistry" seeks to publish experimental or theoretical research results of outstanding significance and timeliness in all fields of Chemistry, including Industrial and Ecological Chemistry. The main goal of this edition is strengthening the Chemical Society of Moldova, following development of research in Moldovan chemical institutions and promotion of their collaboration with international chemical community. Manuscripts are welcome from all countries.