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Advances in Analytical Strategies to Study Bioactive Compounds in Food...
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Advances in Analytical Strategies to Study Bioactive Compounds in Food and Food Waste - Part II

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

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 1913

Special Issue Editors

Dr. Federica Ianni

E-Mail Website
Guest Editor
Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti, 48, 06123 Perugia, Italy
Interests: analytical chemistry instrumentation; food chemistry; separation science; bioactive compounds; chirality; chromatography; enantiomer separation
Special Issues, Collections and Topics in MDPI journals
Dr. Roccaldo Sardella

E-Mail Website
Guest Editor
Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy
Interests: enantioselective analysis; liquid chromatography; mechanisms of molecular recognition; medicinal chemistry; (bio)pharmaceutica1 analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Following the success of the Special Issue on “Advances in Analytical Strategies to Study Bioactive Compounds in Food and Food Waste”, we are pleased to inform you that Molecules will be launching a second edition of the Special Issue.

Research in food science has significantly increased in recent years, with beneficial economic and environmental impacts. The positive trend has been fueled by several factors, including the valorization of food waste and by-products. Together with the by-products of the agri-food supply chain,  inedible wastes also represent an important source of high-value bioactive compounds with beneficial health properties. These compounds can be exploited in a multitude of ways, spanning from their use as food additives or active ingredients in nutraceutical or cosmeceutical preparations to their application in the form of fine chemicals.

From this perspective, despite the promising results achieved so far, the valorization of food waste and by-products still poses considerable challenges mostly related to the extraction, purification and characterization methods. Furthermore, difficulties arise regarding the stability of the extracts during processing and the technological difficulties associated with large-scale production. Therefore, renewed and unprecedented methodologies concerning the extraction, purification and chemical characterization processes are highly desirable for a more efficient exploitation of natural resources in compliance with the main paradigms of the circular economy and sustainable development.

The main aim of this Special Issue is to collect cutting-edge studies that deal with the above concerns. We strongly encourage the submission of both review articles and original papers to enrich this ambitious Special Issue.

Dr. Federica Ianni
Dr. Roccaldo Sardella
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

  • food analysis
  • advanced analytical strategies
  • food and waste processing techniques
  • valorization of food waste and by-products
  • bioactive compounds
  • health-promoting compounds

Published Papers (2 papers)

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Research

11 pages, 764 KiB  
Article
Occurrence of Hydroxytyrosol, Tyrosol and Their Metabolites in Italian Cheese
by Danilo Giusepponi, Carolina Barola, Elisabetta Bucaletti, Simone Moretti, Fabiola Paoletti, Andrea Valiani, Raffaella Branciari and Roberta Galarini
Molecules 2023, 28(17), 6204; https://doi.org/10.3390/molecules28176204 - 23 Aug 2023
Viewed by 753
Abstract
Tyrosol (T) and hydroxytyrosol (HT) are phenyl alcohol polyphenols with well-recognized health-promoting properties. They are widely diffused in several vegetables, especially in olive products (leaves, fruits and oil). Therefore, they could be present in food produced from herbivorous animals such as in milk [...] Read more.
Tyrosol (T) and hydroxytyrosol (HT) are phenyl alcohol polyphenols with well-recognized health-promoting properties. They are widely diffused in several vegetables, especially in olive products (leaves, fruits and oil). Therefore, they could be present in food produced from herbivorous animals such as in milk and cheese. In this study, an analytical method to determine T, HT and some of their phase II metabolites (sulphates and glucuronides) in cheese was developed and validated. Samples were extracted with an acidic mixture of MeOH/water 80/20 (v/v) and, after a low temperature clean-up, the extracts were evaporated and injected in a liquid-chromatography coupled with high resolution mass spectrometry (LC-Q-Orbitrap). A validation study demonstrated satisfactory method performance characteristics (selectivity, linearity, precision, recovery factors, detection and quantification limits). The developed protocol was then applied to analyze 36 Italian cheeses made from ewe, goat and cow milk. The sum of detected compounds (T, tyrosol sulfate, hydroxytyrosol-3-O-sulfate and hydroxytyrosol-4-O-sulfate) reached as high as 2300 µg kg−1 on a dry weight basis, although in about 45% of cow cheeses it did not exceed 50 µg kg−1. Ewe cheeses were significantly richer of polyphenols (sum) as well as HT sulfate metabolites than cow cheeses. In conclusion, results shows that cheese cannot be considered an important dietary source of these valuable compounds. Full article
(This article belongs to the Special Issue Advances in Analytical Strategies to Study Bioactive Compounds in Food and Food Waste - Part II)
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20 pages, 5792 KiB  
Article
Impact of High-Pressure Homogenization on Enhancing the Extractability of Phytochemicals from Agri-Food Residues
by Annachiara Pirozzi and Francesco Donsì
Molecules 2023, 28(15), 5657; https://doi.org/10.3390/molecules28155657 - 26 Jul 2023
Cited by 3 | Viewed by 877
Abstract
The primary objective of the Sustainable Development Goals is to reduce food waste by employing various strategies, including the reuse of agri-food residues that are abundantly available and the complete use of their valuable compounds. This study explores the application of high-pressure homogenization [...] Read more.
The primary objective of the Sustainable Development Goals is to reduce food waste by employing various strategies, including the reuse of agri-food residues that are abundantly available and the complete use of their valuable compounds. This study explores the application of high-pressure homogenization (HPH), an innovative nonthermal and green treatment, for the recovery of bioactive compounds from agri-food residues. The results demonstrate that the optimized HPH treatment offers advantages over conventional solid/liquid extraction (SLE), including shorter extraction time, solvent-free operation, low temperatures, and higher yields of phenol extraction (an approximately 20% improvement). Moreover, the micronization of agri-food residue-in-water suspensions results in a decrease in the size distribution to below the visual detection limit, achieved by disrupting the individual plant cells, thus enhancing suspension stability against sedimentation. These findings highlight the potential of HPH for environmentally friendly and efficient extraction processes. Full article
(This article belongs to the Special Issue Advances in Analytical Strategies to Study Bioactive Compounds in Food and Food Waste - Part II)
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