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Advances of Proteomics in Natural Product Chemistry

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

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 3229

Special Issue Editor


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Guest Editor
Fundación Centro Tecnolóxico da Carne, San Cibrao das Vinas, Spain
Interests: natural antioxidants; food preservation; healthy meat products; emerging technologies; food proteomics

Special Issue Information

Dear Colleagues,

Natural products and their derivatives have been used in traditional medicine since the dawn of civilization for the treatment of a multitude of different pathologies, serving as a deliverer of chemical compounds with bioactive properties. The cells of many plants, animals, and microorganisms are rich sources of biologically active proteins that have been found to exhibit diverse functional properties, constituting an important category within nutraceuticals. Both the food and pharmaceutical industries have recently focused their efforts on the discovery of these types of proteins and peptides for the development of new food products and drugs aimed at improving the functioning of the human body and alleviating widespread health conditions, such as coronary heart disease, stroke, hypertension, cancer, obesity, or diabetes. Proteomic technology can help to correctly characterize these protein compounds through analysis strategies based on novel techniques and methodologies supported by mass spectrometry. The application of this technology, framed within the group known as “omic technologies”, also contributes to the detection of small molecules with bioactive potential through the interaction with their protein targets (chemical proteomics), thus improving the understanding of the mechanism of action of the drug and discovering possible therapeutic applications, as well as adverse side effects.

This Special Issue is dedicated to the study of natural products as a source of nutraceuticals through the application of proteomic technology with the aim of developing new food products and drugs in disease control. Topics include, but are not limited to, identification of biologically relevant compounds, application of proteomics to study the action of bioactive compounds, development of analytical methods focused on the characterization of active proteins and/or peptides, analysis of statistical and bioinformatic data derived from proteomic studies, and development of new foods and/or drugs. The application of proteomics in the study of natural bioactive compounds enables a deeper comprehension of their biological activities, promoting innovation and progress towards more natural foods and medicines, thus meeting market demand.

Dr. Rubén Agregán
Guest Editor

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

  • nutraceuticals
  • bioactive compounds
  • bioactive peptides
  • novel drugs
  • natural foods
  • mass spectrometry

Published Papers (1 paper)

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Research

22 pages, 7446 KiB  
Article
Novel Antioxidant Peptides from Pearl Shell Meat Hydrolysate and Their Antioxidant Activity Mechanism
by Pantian Huang, Jianyin Miao, Jialing Li, Yingkun Li, Xianghua Wang, Yan Yu and Yong Cao
Molecules 2023, 28(2), 864; https://doi.org/10.3390/molecules28020864 - 15 Jan 2023
Cited by 5 | Viewed by 2560
Abstract
Free radicals are associated with aging and many diseases. Antioxidant peptides with good antioxidant activity and absorbability are one of the hotspots in antioxidant researches. In our study, pearl shell (Pinctada martensii) meat hydrolysate was purified, and after identification by proteomics, [...] Read more.
Free radicals are associated with aging and many diseases. Antioxidant peptides with good antioxidant activity and absorbability are one of the hotspots in antioxidant researches. In our study, pearl shell (Pinctada martensii) meat hydrolysate was purified, and after identification by proteomics, six novel antioxidant peptides SPSSS, SGTAV, TGVAS, GGSIT, NSVAA, and GGSLT were screened by bioinformatics analysis. The antioxidant peptides exhibited good cellular antioxidant activity (CAA) and the CAA of SGTAV (EC50: 0.009 mg/mL) and SPSSS (EC50: 0.027 mg/mL) were better than that of positive control GSH (EC50: 0.030 mg/mL). In the AAPH-induced oxidative damage models, the antioxidant peptides significantly increased the viability of HepG2 cells, and the cell viability of SGTAV, SPSSS, and NAVAA were significantly restored from 79.41% to 107.43% and from 101.09% and 100.09%, respectively. In terms of antioxidant mechanism by molecular docking, SGTAV, SPSSS, and NAVAA could tightly bind to free radicals (DPPH and ABTS), antioxidant enzymes (CAT and SOD), and antioxidant channel protein (Keap1), suggesting that the antioxidant peptides had multiple antioxidant activities and had structure–activity linkages. This study suggests that the antioxidant peptides above are expected to become new natural materials for functional food industries, which contribute to the high-value applications of pearl shell meat. Full article
(This article belongs to the Special Issue Advances of Proteomics in Natural Product Chemistry)
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