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Molecules
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Analysis of Phytochemical Components II
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Analysis of Phytochemical Components II

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Analytical Chemistry".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 635

Special Issue Editors

Prof. Dr. Vladimir A. Khripach

E-Mail Website
Guest Editor
Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 5/2 Academician V. F. Kuprevich Street, BY-220141 Minsk, Belarus
Interests: natural products; steroids; synthesis; bioactivity; analysis; application
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Pavel B. Drašar

E-Mail Website
Guest Editor
Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Prague, Czech Republic
Interests: natural products; isolation; synthetic utilization and analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

For the whole of human civilization, plants and their components have served as an irreplaceable source of medicinal substances. Of no less importance is the role they have adopted in recent years, whereby they comprise the material basis for improving the practical properties of natural molecules through their chemical transformation. This idea has been inspiring the search for and study of new phytochemical objects for more than a century, which is gaining more and more opportunities over time thanks to the intensive development of new analytical methods. Along with the importance of the analysis of phytochemical components for medicine, its increasing role in ecology and agriculture should be noted.

Due to the necessity of overcoming the negative effects of mounting environmental problems on Earth, there is a need to develop new sensitive methods for use in the analysis of plant components. This includes ones that are present in very small quantities, but which can have a great impact on plant survival and therefore on the biosphere as a whole. Additionally, among secondary metabolites, phytochemicals are an important group of natural products from which even contemporary agriculture gets new agrochemicals and/or synthetic inspiration. As complete chemical characterization and purity checks are essential for further investigations and practical use, we invite all specialists from the field to contribute to the Special Issue, entitled “Analysis of Phytochemical Components II”.

Prof. Dr. Vladimir A. Khripach
Prof. Dr. Pavel B. Drašar
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • secondary metabolites’ analysis
  • column chromatography
  • HPLC
  • MS
  • NMR
  • analytical bio-testing
  • immunoassay analysis
  • plant metabolomics
  • separation methods
  • purity check
  • impurities analysis
  • degradation products analysis

Published Papers (1 paper)

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Research

16 pages, 11298 KiB  
Article
Based on HPLC and HS-GC-IMS Techniques, the Changes in the Internal Chemical Components of Schisandra chinensis (Turcz.) Baill. Fruit at Different Harvesting Periods Were Analyzed
by Bowei Sun, Yiping Yan, Mingjie Ma, Jinli Wen, Yanli He, Yining Sun, Pengqiang Yuan, Peilei Xu, Yiming Yang, Zihao Zhao, Li Cao and Wenpeng Lu
Molecules 2024, 29(8), 1893; https://doi.org/10.3390/molecules29081893 - 22 Apr 2024
Viewed by 437
Abstract
Schisandra chinensis, as a traditional Chinese herbal medicine, has clear pharmacological effects such as treating asthma, protecting nerves and blood vessels, and having anti-inflammatory properties. Although the Schisandra chinensis fruit contain multiple active components, the lignans have been widely studied as the [...] Read more.
Schisandra chinensis, as a traditional Chinese herbal medicine, has clear pharmacological effects such as treating asthma, protecting nerves and blood vessels, and having anti-inflammatory properties. Although the Schisandra chinensis fruit contain multiple active components, the lignans have been widely studied as the primary pharmacologically active compound. The volatile chemical components of Schisandra chinensis include a large amount of terpenes, which have been proven to have broad pharmacological activities. However, when to harvest to ensure the highest accumulation of pharmacologically active components in Schisandra chinensis fruits is a critical issue. The Schisandra chinensis fruit trees in the resource nursery were all planted in 2019 and began bearing fruit in 2021. Their nutritional status and tree vigor remain consistently good. The content of lignans and organic acids in the fruits of Schisandra chinensis over seven different harvest periods was tested, and the results of high-performance liquid chromatography (HPLC) indicated that the lignan content was higher, at 35 mg/g, in late July, and the organic acid content was higher, at 72.34 mg/g, in early September. If lignans and organic acids are to be selected as raw materials for pharmacological development, the harvest can be carried out at this stage. Using HS-GC-IMS technology, a total of 67 volatile flavor substances were detected, and the fingerprint of the volatile flavor substances in the different picking periods was established. It was shown by the results that the content of volatile flavor substances was the highest in early August, and 16 flavor substances were selected by odor activity value (OAV). The variable importance in projection (VIP) values of 16 substances were further screened, and terpinolene was identified as the key volatile flavor substance that caused the aroma characteristics of Schisandra chinensis fruit at different harvesting periods. If the aroma component content of Schisandra chinensis fruit is planned to be used as raw material for development and utilization, then early August, when the aroma component content is higher, should be chosen as the time for harvest. This study provides a theoretical basis for the suitable harvesting time of Schisandra chinensis for different uses, and promotes the high-quality development of the Schisandra chinensis industry. Full article
(This article belongs to the Special Issue Analysis of Phytochemical Components II)
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