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Separations
Special Issues
Isolation and Characterization of Natural Products/Secondary Metabolites
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Isolation and Characterization of Natural Products/Secondary Metabolites

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Analysis of Natural Products and Pharmaceuticals".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1772

Special Issue Editors

Dr. Julián Lozano-Castellón

E-Mail Website
Guest Editor
Department of Nutrition, Food Science and Gastronomy-XARTA-INSA-UB, School of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
Interests: polyphenols; olive oil; liquid chromatography–mass spectrometry; gas chromatography–mass spectrometry; oleocanthal; hydroxytyrosol; secoiridoids
Dr. Anna Vallverdú-Queralt

E-Mail Website
Guest Editor
Department of Nutrition, Food Science and Gastronomy-XARTA-INSA-UB, School of Pharmacy and Food Science, University of Barcelona, 08028 Barcelona, Spain
Interests: polyphenols; mass spectrometry; metabolomics; food science; HPLC; GC-MS; sensory analysis

Special Issue Information

Dear Colleagues,

In recent years, the emergent concerns of society with regard to health and sustainability issues have encouraged companies to design greener formulations containing bioactive compounds (such as polyphenols, vitamins, minerals, and pigments) with recognized pro-healthy effects, including anti-inflammatory, antimicrobial, and antioxidant properties. Simultaneously, a healthy diet encompasses a source of natural antioxidants with protective effects against lifestyle-related diseases. Extraction is a critical step in the isolation, identification, and employment of bioactive compounds from natural sources. These bioactive molecules encompass added-value ingredients with attractive applications in different industries. Despite the huge number of publications on the isolation and characterization of natural products, there is still much interest around this topic and a lack of papers regarding the bioactivity of plant-derived extracts.

This Special Issue intends to explore the latest advances in antioxidant extraction from natural sources and their characterization regarding bioactive compounds with health benefits. Manuscripts dedicated to plant extraction are also welcome. A special emphasis will be given to eco-friendly technologies with a deep insight into polyphenol characterization using analytical methodologies (such as HPLC-DAD, HPLC-MS, and NMR), in vitro assays, and in vivo studies to evaluate bioactivity and safety, addressing potential final applications. Ms. Diana Andreia Tavares Pinto from the Instituto Superior de Engenharia do Porto, Polytechnic of Porto will also assist in editing this Special Issue.

Dr. Julián Lozano-Castellón
Dr. Anna Vallverdú-Queralt
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. Separations is an international peer-reviewed open access monthly 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 2600 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

  • bioactive compounds
  • foods and by-products
  • antioxidants
  • green extraction
  • chromatography
  • health benefits
  • bioactivity
  • safety
  • industrial applications

Published Papers (1 paper)

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Research

12 pages, 1471 KiB  
Article
Isolation and Characterization of Triterpenoid Saponins from Ficus natalensis subsp. leprieurii Leaves
by Samyah Alanazi, Shaimaa E. A. Elish, Abeer Temraz, Walid H. El-Tantawy and Mostafa H. Baky
Separations 2023, 10(9), 478; https://doi.org/10.3390/separations10090478 - 31 Aug 2023
Viewed by 1171
Abstract
Ficus natalensis subsp. leprieurii also known as the natal fig is a fruit-producing tree belonging to the family Moraceae and widely distributed in African countries and cultivated in Egypt. F. natalensis is common with a myriad of traditional and medicinal importance. Owing to [...] Read more.
Ficus natalensis subsp. leprieurii also known as the natal fig is a fruit-producing tree belonging to the family Moraceae and widely distributed in African countries and cultivated in Egypt. F. natalensis is common with a myriad of traditional and medicinal importance. Owing to the increased demand for natural products with new structural compositions, the current study aimed to separate and elucidate the structure of triterpenoid saponins from F. natalensis leaves. Our previous biological investigation of F. natalensis leaves revealed its potent antioxidant and anti-inflammatory characteristics, and its ability to alleviate Cd-induced reproductive toxicity. Phytochemical investigation of F. natalensis leaves revealed the separation and structure elucidation of seven (1–7) compounds belonging to triterpenoid saponins using NMR and MS data and identified for the first time in F. natalensis. The isolated compounds were identified as 3-O-β-D-glucopyranosyl (1 → 4) β-D-glucopyranosyl (1 → 4)–α-L-rhamnopyranosyl-quinovic acid-28-O-β-D-glucopyranosyl (1 → 4)–α-L-rhamnopyranosyl (1 → 2)–α-L-arabinopyranoside ester (1), 3-O-β-D-glucopyranosyl (1 → 4) α-L rhamnopyranosyl-quinovic acid-28-O-β-D-glucopyranosyl (1 → 4)–α-L-rhamnopyranosyl (1 → 2) α-L-arabinopyranoside (2), 3-O-β-D-glucopyranosyl–quinovic acid-28-O-β-D-glucopyranosyl ester (3), as 3-O-α-L-rhamnopyranosyl-quinovic acid-28-O-β-D-glucopyranoside ester (4), 3-O-β-D-glucopyranosyl oleanolic acid (5), 3-methoxy-oleanolic acid-28-O-α-L-rhamnopyranoside (6), and 3-O-α-L-rhamnopyranosyl-oleanolic acid-28-O-β-D-glucopyranoside ester (7). Among the identified compounds, compounds 1 and 2 were identified for the first time in nature according to Reaxys and Web of Science database. Full article
(This article belongs to the Special Issue Isolation and Characterization of Natural Products/Secondary Metabolites)
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