Fruit Polyphenol Extract

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Phytochemistry".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 8251

Special Issue Editors

Department of Agrotechnology, Univeristy of Thessaly, 41110 Larissa, Greece
Interests: plant protection; biological control; environmental pollution; extraction of polypehnols; food science
Special Issues, Collections and Topics in MDPI journals
School of Applied Arts and Sustainable Design, Hellenic Open University, Parodos Aristotelous 18, 26335 Patras, Greece
Interests: food science; design and optimization of extraction techniques; chemical characterization of natural products
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant secondary metabolites are of great interest since they affect plant development, plant–microbe, plant–animal, and plant–plant interactions, as well as plant chemical ecology. Thus, I would like to invite you to submit a research paper to the scientific, peer-reviewed MDPI journal Plants to be included in the upcoming Special Issue on “Fruit Polyphenol Extract”. The topics to be covered in the Special Issue are as follows: natural antimicrobials and antioxidants; encapsulation; advanced drying technologies; novel extraction and separation technologies; non-thermal preservation technologies; advanced analytical and characterization technologies for natural products. This Special Issue of Plants will highlight the function, evolution, and diversity of fruit polyphenols and their role in the interactions of plants with their environment. Plants MDPI is a peer-reviewed, well-respected international journal with a high impact factor (IF = 2.762). For more information, you can e-mail me directly at [email protected] or [email protected].

I look forward to your reply.

Dr. Stefanos Leontopoulos
Dr. Prodromos Skenderidis
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. Plants 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.

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

10 pages, 821 KiB  
Article
Enhancing Phenolic Content of Medicinal Aromatic Plants Extracts-Biofunctional Foods Preparation
by Maria G. Ziagova, Charoula Mavromatidou, Georgios Samiotis and Elisavet Amanatidou
Plants 2022, 11(1), 76; https://doi.org/10.3390/plants11010076 - 27 Dec 2021
Cited by 3 | Viewed by 2145
Abstract
In this study, the assessment of TPC and antioxidant activity enhancement of medicinal and aromatic plant (MAP) aqueous extracts using natural sweeteners or encapsulation materials was carried out. MAP extracts fortified with polyphenols were used to produce biofunctional chocolate bites. Honey or erythritol [...] Read more.
In this study, the assessment of TPC and antioxidant activity enhancement of medicinal and aromatic plant (MAP) aqueous extracts using natural sweeteners or encapsulation materials was carried out. MAP extracts fortified with polyphenols were used to produce biofunctional chocolate bites. Honey or erythritol added to Melissa officinalis concentrated aqueous extracts exhibited TPC at 19.53 mg GAE/mL and 18.24 mg GAE/mL, respectively, and DPPH radical scavenging activity greater than 82%, comparing to its non-concentrated aqueous extract (3.74 mg GAE/mL and 72.9%, respectively). Honey added to MAP concentrated aqueous extract mixtures presented up to twofold higher TPC compared to M. officinalis concentrated aqueous extracts with honey. Chocolate bites with MAP concentrated aqueous extract mixtures and honey exhibited TPC and DPPH radical scavenging activity at 29.48 mg GAE/g chocolate and 93.7%, respectively. The addition of gum arabic or inulin in MAP concentrated aqueous extract mixtures increased the TPC up to 12-fold (40.37 mg GAE/mL and 34.14 mg GAE/mL, respectively) compared to its non-concentrated aqueous extracts (3.38 mg GAE/mL), whereas DPPH radical scavenging activity approached 99.5%. Honey incorporation as a sweetener and polyphenolic compound encapsulation in gum arabic can lead to the production of biofunctional foods with elevated cytoprotective action without compromising their organoleptic attributes. Full article
(This article belongs to the Special Issue Fruit Polyphenol Extract)
Show Figures

Figure 1

10 pages, 893 KiB  
Article
Encapsulation of Cinnamic Acid on Plant-Based Proteins: Evaluation by HPLC, DSC and FTIR-ATR
by Mirela Kopjar, Ivana Buljeta, Ivana Jelić, Vanja Kelemen, Josip Šimunović and Anita Pichler
Plants 2021, 10(10), 2158; https://doi.org/10.3390/plants10102158 - 11 Oct 2021
Cited by 8 | Viewed by 2562
Abstract
Plant-based protein matrices can be used for the formulation of delivery systems of cinnamic acid. Pumpkin, pea and almond protein matrices were used for the formulation of dried complexes. The matrices were used in varying amounts (1%, 2%, 5% and 10%) whilst the [...] Read more.
Plant-based protein matrices can be used for the formulation of delivery systems of cinnamic acid. Pumpkin, pea and almond protein matrices were used for the formulation of dried complexes. The matrices were used in varying amounts (1%, 2%, 5% and 10%) whilst the amount of cinnamic acid was maintained constant. The obtained complexes were analyzed by HPLC, DSC and FTIR-ATR. The highest amounts of cinnamic acid were determined on complexes prepared by the lowest amounts of protein matrices, regardless of their type. The highest affinity for cinnamic acid adsorption was determined for the pumpkin protein matrix. DSC analysis revealed that adsorption of cinnamic acid caused an increase in the thermal stability of the almond protein matrix, while the other two matrices had the opposite behavior. The complexation of protein matrices and cinnamic acid was proven by recording the IR spectra. The obtained complexes could have potential applications in food products to achieve enrichment with cinnamic acid as well as proteins. Full article
(This article belongs to the Special Issue Fruit Polyphenol Extract)
Show Figures

Figure 1

20 pages, 2315 KiB  
Article
The In Vitro and In Vivo Synergistic Antimicrobial Activity Assessment of Vacuum Microwave Assisted Aqueous Extracts from Pomegranate and Avocado Fruit Peels and Avocado Seeds Based on a Mixtures Design Model
by Prodromos Skenderidis, Stefanos Leontopoulos, Konstantinos Petrotos, Chrysanthi Mitsagga and Ioannis Giavasis
Plants 2021, 10(9), 1757; https://doi.org/10.3390/plants10091757 - 24 Aug 2021
Cited by 7 | Viewed by 2825
Abstract
The present study aimed to assess the antimicrobial properties of encapsulated lyophilized powdered extracts of pomegranate peels (PP), avocado peels (AP) and avocado seeds (AS) in vitro and in vivo. Minimum Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) methods, optical density measurement, [...] Read more.
The present study aimed to assess the antimicrobial properties of encapsulated lyophilized powdered extracts of pomegranate peels (PP), avocado peels (AP) and avocado seeds (AS) in vitro and in vivo. Minimum Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) methods, optical density measurement, and well diffusion assay were used to determine antimicrobial activity against food borne bacteria (Gram− Escherichia coli, Salmonella typhimurium, Campylobacter jejuni, Pseudomonas putida), (Gram+ Staphylococcus aureus, Listeria monocytogenes, Clostridium perfringens, Lactobacillus plantarum), and fungi (Penicillium expansum and Aspergillus niger) based on a mixture design model. Additionally, the most effective powder was studied in vivo in yogurt, cream cheese, and minced meat burger. The samples that contained high polyphenol content also exhibited higher antioxidant, antimicrobial, and antifungal activity. From the results of the well diffusion, the MIC/MBC, and the cell optical density assays, the antimicrobial activity of the extracts was found to be correlated to the total phenolic content (TPC) of the samples and the type of the microorganism. The pomegranate peels extract presented the higher TPC and antioxidant activity and constitute the highest percentage in the most active antimicrobial mixture. The powders that were tested in vitro showed microbial type-dependent effects in each food model. The results presented here can be further studied in the large-scale industrial production of natural food preservatives. Full article
(This article belongs to the Special Issue Fruit Polyphenol Extract)
Show Figures

Graphical abstract

Back to TopTop