Suppr超能文献

对来自克罗地亚不同地区的蜂胶进行靶向和非靶向 LC-MS 多酚分析及化学计量学分析。

Targeted and untargeted LC-MS polyphenolic profiling and chemometric analysis of propolis from different regions of Croatia.

机构信息

University of Rijeka, Department of Biotechnology, Centre for high-throughput technologies, Radmile Matejčić 2, 51000 Rijeka, Croatia.

Department of Pathophysiology, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland.

出版信息

J Pharm Biomed Anal. 2019 Feb 20;165:162-172. doi: 10.1016/j.jpba.2018.11.061. Epub 2018 Dec 4.

Abstract

Propolis is a complex biological matrix consisting mostly of plant resins and waxes, and in a small proportion of the herbal secondary metabolites, phenols. Phenols are components that are responsible for biological activities of propolis, however, their qualitative and quantitative composition is strongly influenced by climate and vegetation. Although studies on profiling of propolis samples from different countries have been carried out for some time propolis from Croatia is still not characterized till now. Targeted liquid chromatography coupled to triple quadrupole (LC-QQQ), untargeted liquid chromatography coupled to quadrupole time-of-flight (LC-QTOF) and direct injection QTOF methods were developed and 56 propolis samples from different geographical regions of Croatia were analyzed. Results revealed that there is not only one expected type of propolis in the territory of Croatia; i.e. beside expected European "poplar" propolis another type can be distinguished. Principal component analysis (PCA) and Partial least squares Discriminant Analysis (PLS-DA) indicated that the phenolic content of propolis samples significantly changes under the influence of the Mediterranean, so the "European" propolis type mixes with the Mediterranean type on the Croatian coast, especially on the islands. For fast screening of propolis type, direct injection QTOF analysis demonstrated to be fast and reliable method, but for unambiguous identification of phenolic compounds, chromatographic separation is indispensable. This paper presents the findings from the first research on phenolic profiling of propolis from Croatia.

摘要

蜂胶是一种复杂的生物基质,主要由植物树脂和蜡组成,还有一小部分草药次生代谢物,酚类化合物。酚类化合物是蜂胶具有生物活性的成分,然而,它们的定性和定量组成受气候和植被的强烈影响。尽管对来自不同国家的蜂胶样本进行了一段时间的分析,但到目前为止,克罗地亚的蜂胶仍未得到特征描述。本研究建立了靶向液相色谱-三重四极杆(LC-QQQ)、非靶向液相色谱-四极杆飞行时间(LC-QTOF)和直接进样 QTOF 方法,并对来自克罗地亚不同地理区域的 56 个蜂胶样本进行了分析。结果表明,在克罗地亚境内不仅有一种预期类型的蜂胶,即除了预期的欧洲“杨树”蜂胶外,还可以区分另一种类型。主成分分析(PCA)和偏最小二乘判别分析(PLS-DA)表明,在受到地中海影响的情况下,蜂胶样本的酚类含量会发生显著变化,因此在克罗地亚沿海地区,尤其是岛屿上,欧洲型蜂胶与地中海型蜂胶混合在一起。为了快速筛选蜂胶类型,直接进样 QTOF 分析被证明是一种快速可靠的方法,但为了明确鉴定酚类化合物,色谱分离是必不可少的。本文介绍了对来自克罗地亚的蜂胶进行酚类成分分析的首次研究结果。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验