Green Chemistry in Marine Natural Product Research

A special issue of Marine Drugs (ISSN 1660-3397).

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 9582

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Guest Editor
Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, HR-21000 Split, Croatia
Interests: volatile organic compounds (terpenes, norisoprenoids, aliphatic and aromatic compounds, others); glycosidically bound volatiles; chemical biomarkers; chemical biodiversity; gas chromatography and mass spectrometry; organic chemistry
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Special Issue Information

Dear Colleagues,

Paul T. Anastas first used the term “green chemistry” in 1991, defined as the implementation of chemicals and processes aimed at reducing or eliminating the application or generation of substances harmful to human health and the environment as a contribution toward the search for sustainability. In order to contribute to sustainable green chemistry, the journal Marine Drugs has launched a new Special Issue on “Green Chemistry in Marine Natural Product Research”.

Research papers and review articles covering all basic and applied aspects in the field of green chemistry of marine natural products are welcome (alternative solvents, green synthesis methods for marine natural products, green techniques and their applications, green instrumentation, up-to-date achievements, theory, future perspectives, etc.).

Prof. Dr. Igor Jerković
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. Marine Drugs 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 2900 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

  • green chemistry
  • marine natural products
  • Eco-friendly
  • alternative solvents
  • green instrumentation
  • green techniques
  • green synthesis
  • isolation
  • extraction

Published Papers (4 papers)

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Research

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14 pages, 3251 KiB  
Article
Bioprospecting of Targeted Phenolic Compounds of Dictyota dichotoma, Gongolaria barbata, Ericaria amentacea, Sargassum hornschuchii and Ellisolandia elongata from the Adriatic Sea Extracted by Two Green Methods
by Aly Castillo, Maria Celeiro, Marta Lores, Kristina Grgić, Marija Banožić, Igor Jerković and Stela Jokić
Mar. Drugs 2023, 21(2), 97; https://0-doi-org.brum.beds.ac.uk/10.3390/md21020097 - 29 Jan 2023
Cited by 4 | Viewed by 1955
Abstract
The content of bioactive compounds in four brown and one red algae from the Adriatic Sea (Dictyota dichotoma, Gongolaria barbata, Ericaria amentacea, Sargassum hornschuchii and Ellisolandia elongata) is explored. The efficiency of two different extraction methods viz. ultrasound-assisted extraction [...] Read more.
The content of bioactive compounds in four brown and one red algae from the Adriatic Sea (Dictyota dichotoma, Gongolaria barbata, Ericaria amentacea, Sargassum hornschuchii and Ellisolandia elongata) is explored. The efficiency of two different extraction methods viz. ultrasound-assisted extraction (UAE) and matrix solid-phase dispersion (MSPD) to obtain the extracts rich in phenolic compounds was compared. The effect of the extraction solvent to modulate the phenolic profile was assessed. In general, the mixture ethanol/water in an isovolumetric proportion showed the best results. The total phenolic content (TPC) and antioxidant activity (AA), as well as the individual polyphenolic profile, were evaluated for five target algae. TPC values ranged between 0.2 mg GAE/g (for E. elongata) and 38 mg GAE/g (for S. hornschuchii). Regarding the quantification of individual polyphenols by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, the presence of a high number of hydroxybenzoic acid derivatives (mainly of 3- and 4-hydroxybenzoic acids) in all species was noted. In G. barbata their concentrations reached up to 500 mg/kg. IC50 values (ABTS assay) ranged between 44 mg/L (for S. hornschuchii) and 11,040 mg/L (for E. elongata). This work contributes to the in-depth characterization of these little-explored algae, showing their potential as a natural source of phenolic compounds. Full article
(This article belongs to the Special Issue Green Chemistry in Marine Natural Product Research)
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19 pages, 5609 KiB  
Article
Application of Green Chiral Chromatography in Enantioseparation of Newly Synthesized Racemic Marinoepoxides
by Anđela Buljan and Marin Roje
Mar. Drugs 2022, 20(8), 530; https://0-doi-org.brum.beds.ac.uk/10.3390/md20080530 - 19 Aug 2022
Cited by 2 | Viewed by 1428
Abstract
Enantioseparation of the newly synthesized series of novel quinoline-2(1H)-one epoxide structures rac-6ac and rac-8ac, named marinoepoxides, is described. Marinoepoxide rac-6a, the key intermediate in the total synthesis of natural [...] Read more.
Enantioseparation of the newly synthesized series of novel quinoline-2(1H)-one epoxide structures rac-6ac and rac-8ac, named marinoepoxides, is described. Marinoepoxide rac-6a, the key intermediate in the total synthesis of natural products marinoaziridines A and B, as well as their structural analogues, was synthesized by addition of the achiral ylide generated in situ from the sulfonium salt 5 or 7, to the carbon-oxygen double bond of the corresponding quinoline-2(1H)-one-4-carbaldehyde 4ac in good yield. Separation of enantiomers of (±)-2,3,3-trisubstituted marinoepoxides rac-6ac and (±)-trans-2,3-disubstituted marinoepoxides rac-8ac was studied using two immobilized polysaccharide type chiral stationary phases (CSPs); tris-(3,5-dichlorophenylcarbamoyl)cellulose stationary phase (CHIRAL ART Cellulose-SC) and tris-(3,5-dimethylphenylcarbamoyl)amylose stationary phase (CHIRAL ART Amylose-SA). Enantioseparation conditions were explored by high-performance liquid chromatography (HPLC) using dimethyl carbonate/alcohol mixtures and n-hexane/ethanol (80/20, v/v) as mobile phase, and by supercritical fluid chromatography (SFC) using CO2/alcohol mixtures as mobile phase. In all examined racemates, enantioseparation was successfully achieved, but its efficiency largely depended on the structure of chiral selector and type/composition of the mobile phase. Full article
(This article belongs to the Special Issue Green Chemistry in Marine Natural Product Research)
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19 pages, 1812 KiB  
Article
Supercritical Fluid Extraction of Fucoxanthin from the Diatom Phaeodactylum tricornutum and Biogas Production through Anaerobic Digestion
by Mari Carmen Ruiz-Domínguez, Francisca Salinas, Elena Medina, Bárbara Rincón, Marí Ángeles Martín, Marí Carmen Gutiérrez and Pedro Cerezal-Mezquita
Mar. Drugs 2022, 20(2), 127; https://0-doi-org.brum.beds.ac.uk/10.3390/md20020127 - 07 Feb 2022
Cited by 11 | Viewed by 3025
Abstract
Phaeodactylum tricornutum is the marine diatom best known for high-value compounds that are useful in aquaculture and food area. In this study, fucoxanthin was first extracted from the diatom using supercritical fluid extraction (SFE) and then using the extracted diatom-like substrate to produce [...] Read more.
Phaeodactylum tricornutum is the marine diatom best known for high-value compounds that are useful in aquaculture and food area. In this study, fucoxanthin was first extracted from the diatom using supercritical fluid extraction (SFE) and then using the extracted diatom-like substrate to produce bioenergy through anaerobic digestion (AD) processes. Factors such as temperature (30 °C and 50 °C), pressure (20, 30, and 40 MPa), and ethanol (co-solvent concentration from 10% to 50% v/v) were optimized for improving the yield, purity, and recovery of fucoxanthin extracted using SFE. The highest yield (24.41% w/w) was obtained at 30 MPa, 30 °C, and 30% ethanol but the highest fucoxanthin purity and recovery (85.03mg/g extract and 66.60% w/w, respectively) were obtained at 30 MPa, 30 °C, and 40%ethanol. Furthermore, ethanol as a factor had the most significant effect on the overall process of SFE. Subsequently, P.tricornutum biomass and SFE-extracted diatom were used as substrates for biogas production through AD. The effect of fucoxanthin was studied on the yield of AD, which resulted in 77.15 ± 3.85 LSTP CH4/kg volatile solids (VS) and 56.66 ± 1.90 LSTP CH4/kg VS for the whole diatom and the extracted P.tricornutum, respectively. Therefore, P.tricornutuman can be considered a potential source of fucoxanthin and methane and both productions will contribute to the sustainability of the algae-biorefinery processes. Full article
(This article belongs to the Special Issue Green Chemistry in Marine Natural Product Research)
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Review

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20 pages, 3019 KiB  
Review
Recent Advances in the Synthesis of Marine-Derived Alkaloids via Enzymatic Reactions
by Bi-Shuang Chen, Di Zhang, Fayene Zeferino Ribeiro de Souza and Lan Liu
Mar. Drugs 2022, 20(6), 368; https://0-doi-org.brum.beds.ac.uk/10.3390/md20060368 - 30 May 2022
Cited by 1 | Viewed by 2328
Abstract
Alkaloids are a large and structurally diverse group of marine-derived natural products. Most marine-derived alkaloids are biologically active and show promising applications in modern (agro)chemical, pharmaceutical, and fine chemical industries. Different approaches have been established to access these marine-derived alkaloids. Among these employed [...] Read more.
Alkaloids are a large and structurally diverse group of marine-derived natural products. Most marine-derived alkaloids are biologically active and show promising applications in modern (agro)chemical, pharmaceutical, and fine chemical industries. Different approaches have been established to access these marine-derived alkaloids. Among these employed methods, biotechnological approaches, namely, (chemo)enzymatic synthesis, have significant potential for playing a central role in alkaloid production on an industrial scale. In this review, we discuss research progress on marine-derived alkaloid synthesis via enzymatic reactions and note the advantages and disadvantages of their applications for industrial production, as well as green chemistry for marine natural product research. Full article
(This article belongs to the Special Issue Green Chemistry in Marine Natural Product Research)
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