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Processes
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Advances in Green Extraction Processes of Bioactive Compounds
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Advances in Green Extraction Processes of Bioactive Compounds

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Separation Processes".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 10858

Special Issue Editors

Prof. Dr. Guillermo Cristian Guadalupe Martínez Ávila

E-Mail Website
Guest Editor
School of Agronomy, Universidad Autónoma de Nuevo León, General Escobedo, Monterrey 66050, Mexico
Interests: phytochemistry; bioactive compounds; extraction methods; functional foods
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Romeo Rojas

E-Mail Website
Guest Editor
School of Agronomy, Universidad Autónoma de Nuevo León, General Escobedo, Monterrey 66050, Mexico
Interests: agroindustrial wastes; antifungal activity; phenolic antioxidants; edible coatings and films; essential oils
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Extraction processes are important factors in bioactive compound recovery. In this sense, different methodologies have been widely used with diverse sources for the extraction of several bioactive molecules including glycosides, phenolic compounds, terpenes, carotenoids, alkaloids, and carbohydrates, among others. The functional properties of these compounds are well recognized and evaluated by scientists in different in vitro and in vivo systems. However, the chemical profiling and functionality usually strongly depends on the extraction process. Recently, green extraction techniques have been proven to be suitable for the extraction of several phytomolecules and they have been promoted by the increase in the demand for natural and safe extracts and by their efficiency as extraction methods. 

This Special Issue on “Advances in Green Extraction Processes of Bioactive Compounds” aims to bring together novel advances in green extraction processes, and to evaluate the bioactive compounds from plant resources and by-products, as well as analyzing the use of plants in the development of new products with a sustainable approach.

Topics can include, but are not limited to:

  • Novel and ecofriendly processes for the recovery of valuable bioactive compounds;
  • The chemical and functional characterization of bioactive compounds in different systems;
  • Nutraceuticals, functional foods, and dietary supplements related to green extraction processes;
  • The development of new herbal drugs;
  • The use and application of bioactive compounds from plant materials;
  • Agrobiodiversity management through appropriate strategies of plant exploitation.

We cordially invite authors to contribute original research articles and reviews that provide innovative information related to the bioactive compounds naturally occurring in plants.

Prof. Dr. Guillermo Cristian Guadalupe Martínez Ávila
Prof. Dr. Romeo Rojas
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. Processes 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 2400 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

  • extraction techniques
  • bioactive compounds
  • green processes
  • polyphenolic compounds
  • carotenoids
  • alkaloids
  • terpenoids
  • essential oils

Published Papers (4 papers)

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Research

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20 pages, 7433 KiB  
Article
Natural Deep Eutectic Solvent Optimization to Obtain an Extract Rich in Polyphenols from Capsicum chinense Leaves Using an Ultrasonic Probe
by Kevin Alejandro Avilés-Betanzos, Juan Valerio Cauich-Rodríguez, Marisela González-Ávila, Matteo Scampicchio, Ksenia Morozova, Manuel Octavio Ramírez-Sucre and Ingrid Mayanin Rodríguez-Buenfil
Processes 2023, 11(6), 1729; https://doi.org/10.3390/pr11061729 - 06 Jun 2023
Cited by 4 | Viewed by 1560
Abstract
Capsicum chinense Jacq., from the Yucatan peninsula, is recognized worldwide for its pungency, flavor, and secondary metabolites content. This has resulted in an increase in its production, which has led to an increase in the number of byproducts considered waste, mainly its leaves. [...] Read more.
Capsicum chinense Jacq., from the Yucatan peninsula, is recognized worldwide for its pungency, flavor, and secondary metabolites content. This has resulted in an increase in its production, which has led to an increase in the number of byproducts considered waste, mainly its leaves. Capsicum chinense leaves have been demonstrated to contain polyphenols with bioactive properties (antioxidant, anti-inflammatory, antiobesogenic capacity, etc.); hence, the extraction of polyphenols through the use of natural deep eutectic solvents (NADES) with a green technology, such as an ultrasonic probe, could help to revalue these leaves by maximizing the extraction efficiency and preserving their bioactive properties. The objective of this study was to optimize the composition of a eutectic solvent for obtaining an extract rich in polyphenols from the Capsicum chinense leaf using a sonic probe. The optimum conditions of the composition of NADES for obtaining the highest Antioxidant capacity (Ax, 79.71% inhibition) were a 0.8 mol glucose to 1 mol of choline chloride ratio, and 12% water. In addition, with this composition, the Total Polyphenol Content (TPC) obtained was 165.39 mg GAE/100 g dry leaf, and the individual polyphenols, such as vanillin (19.15 mg/100 g dry leaf) and ferulic acid (1.35 mg/100 g dry leaf), were optimized. The habanero pepper leaf extract obtained using a eutectic solvent and a sonic probe demonstrated a high potential for use as an ingredient in the development of nutraceuticals (i.e., functional foods). Full article
(This article belongs to the Special Issue Advances in Green Extraction Processes of Bioactive Compounds)
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18 pages, 9322 KiB  
Article
Fig Leaves (Ficus carica L.): Source of Bioactive Ingredients for Industrial Valorization
by Carlos S. H. Shiraishi, Yosra Zbiss, Custódio Lobo Roriz, Maria Inês Dias, Miguel A. Prieto, Ricardo C. Calhelha, Maria José Alves, Sandrina A. Heleno, da Cunha Mendes V., Márcio Carocho, Rui M. V. Abreu and Lillian Barros
Processes 2023, 11(4), 1179; https://doi.org/10.3390/pr11041179 - 11 Apr 2023
Viewed by 3828
Abstract
The fig tree (Ficus carica L.) was one of the first domesticated trees. In 2019, the world’s fig fruit production was estimated at 1153 tons. However, fig leaves are not utilized, resulting in copious quantities of bio-waste. To identify promising fig tree [...] Read more.
The fig tree (Ficus carica L.) was one of the first domesticated trees. In 2019, the world’s fig fruit production was estimated at 1153 tons. However, fig leaves are not utilized, resulting in copious quantities of bio-waste. To identify promising fig tree varieties, hydroethanolic extracts were prepared from the leaves of five fig tree varieties (Pasteliere—PA, Longue d’Aout—LA, Dauphinie—DA, Boujassote Noire—BN, and Marseille—MA). The variety with the highest concentration of organic acids was BN (146.5 mg/g dw), while glucose, fructose, and sucrose were the predominant sugars across all varieties. All extracts present α-tocopherol as the prevalent tocopherol isoform (above 78%), while PUFA fatty acids were predominant, ranging from 53% to 71% of total fatty acids. BN showed moderate antioxidant activity (EC50 0.23 ± 0.01 mg/mL), while the DA variety presented promising cytotoxicity against the tumor AGS and MCF-7 cell line (GI50 158 ± 13 and 223 ± 21 μg/mL) and especially in the inhibition of Nitric Oxide Production evaluation (IC50 20 ± 5 μg/mL). The DA activities are probably related to high concentrations of flavonoids, specifically the predominant apigenin-C-hexoside-C-pentoside and quercetin-O-deoxyhexosyl-hexoside. Finally, the BN and DA varieties showed good antimicrobial activity, especially against Yersinia enterocolitica. Fig leaves can be considered sustainable sources of industrially valuable bioactive molecules, and several potential applications were highlighted. Full article
(This article belongs to the Special Issue Advances in Green Extraction Processes of Bioactive Compounds)

Review

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27 pages, 1406 KiB  
Review
Green Extraction of Phytochemicals from Fresh Vegetable Waste and Their Potential Application as Cosmeceuticals for Skin Health
by Harichandana Valisakkagari, Chandrika Chaturvedi and H. P. Vasantha Rupasinghe
Processes 2024, 12(4), 742; https://doi.org/10.3390/pr12040742 - 05 Apr 2024
Viewed by 536
Abstract
The utilization of bioactive compounds from fresh produce waste, which is gaining attention in the agri-food and cosmetics industries, focuses on employing green extraction over conventional extraction methods. This emerging field addresses environmental concerns about food waste and the uses of bioactive phytochemicals [...] Read more.
The utilization of bioactive compounds from fresh produce waste, which is gaining attention in the agri-food and cosmetics industries, focuses on employing green extraction over conventional extraction methods. This emerging field addresses environmental concerns about food waste and the uses of bioactive phytochemicals for skin health. Modern green extraction methods aim to minimize the energy-intensive process and the use of harmful solvents. These techniques include ultrasound, microwave, and supercritical fluid extraction, pulsed electric field extraction, pressurized liquid extraction, and subcritical water extraction methods, which provide high efficacy in recovering bioactive phytochemicals from vegetable and root crops. The phytochemicals, such as carotenoids, polyphenols, glucosinolates, and betalains of fresh produce waste, exhibit various therapeutic properties for applications in skin health. These dietary antioxidants help to neutralize free radicals generated by UV radiation, thus preventing oxidative stress, DNA damage, and inflammation. The skin care formulations with these phytochemicals can serve as natural alternatives to synthetic antioxidants that may have toxic and carcinogenic effects. Therefore, this review aims to discuss different green extraction technologies, consumer-friendly solvents, and the beneficial skin health properties of selected phytochemicals. The review highlights recent research on major phytochemicals extracted from vegetables and root crops in relation to skin health. Full article
(This article belongs to the Special Issue Advances in Green Extraction Processes of Bioactive Compounds)
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17 pages, 686 KiB  
Review
Unlocking the Full Potential of Clove (Syzygium aromaticum) Spice: An Overview of Extraction Techniques, Bioactivity, and Future Opportunities in the Food and Beverage Industry
by Ahmad Hazim Abdul Aziz, Dwila Nur Rizkiyah, Lailatul Qomariyah, Irianto Irianto, Mohd Azizi Che Yunus and Nicky Rahmana Putra
Processes 2023, 11(8), 2453; https://doi.org/10.3390/pr11082453 - 15 Aug 2023
Cited by 5 | Viewed by 4357
Abstract
This review article provides an overview of the bioactive compounds of clove, their health benefits, and their potential application in food and beverages. Cloves are rich in phenolic compounds, mainly eugenol, which exhibit antioxidant, anti-inflammatory, antimicrobial, antifungal, and wound-healing properties. Traditional methods of [...] Read more.
This review article provides an overview of the bioactive compounds of clove, their health benefits, and their potential application in food and beverages. Cloves are rich in phenolic compounds, mainly eugenol, which exhibit antioxidant, anti-inflammatory, antimicrobial, antifungal, and wound-healing properties. Traditional methods of clove extraction, such as Soxhlet and maceration, have limitations. Green extraction methods, such as ultrasound-assisted extraction, pressurised liquid extraction, and microwave-assisted extraction, have shown promising results. The potential application of clove extract in various food and beverage products are also discussed. Finally, future perspectives and challenges for clove extraction are highlighted. Overall, the review highlights the potential of clove extract as a natural source of bioactive compounds for various applications in the food and beverage industry. Full article
(This article belongs to the Special Issue Advances in Green Extraction Processes of Bioactive Compounds)
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