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Special Issue "Innovative and Green Extraction Technologies for Recovery of Biomolecules"

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

Deadline for manuscript submissions: 31 December 2021.

Special Issue Editors

Dr. Loubna Firdaous
E-Mail Website
Guest Editor
Joint Research Unit INRAE ULille ULiège UPJV, BioEcoAgro 1158, Charles Viollette Institute, Lille, France
Interests: membrane processes; electrodialysis; selective fractionation; bioseparation; desalination; biomolecules; valorization of co-products
Prof. Dr. Pascal Dhulster
E-Mail Website
Guest Editor
Joint Research Unit INRAE ULille ULiège UPJV, BioEcoAgro 1158, Charles Viollette Institute, Lille, France
Interests: bioprocesses; biomolecules; bioseparation; integrated processes; membrane processes; membrane bioreactor; membrane enzymatic reactor

Special Issue Information

Dear Colleagues,

The significant advances in white biotechnologies, through the use of enzymes and/or microorganisms, make it possible to obtain innovative bioproducts with high added value which have been extensively studied for potential industrial applications. Moreover, agro-industrial byproducts and residues are increasingly being regarded as a raw material for the production of novel biocompounds whose valorization is considered as a driving force in the implementation of “zero waste policies”. However, an obstacle for producing biomolecules is the economic and environmental cost associated with their conventional extraction and purification processes. Conventional extraction techniques are time consuming, require a large volume of solvents, generate hazardous residues, use high temperatures, and are highly energy demanding, which can contribute to the degradation of target biomolecules. Therefore, the implementation of green extraction technologies, such as ionic liquid solvents, green solvents, supercritical fluid extraction, microwave-assisted extraction, and pressured liquid extraction has been growing. These new technologies increase the extraction yield and reduce the required processing time and resources. Moreover, they are safe and ecofriendly.

Owing to the diversity and complexity of biomolecules and the differences in their features, the scope of this Special Issue focuses on the evaluation of green extraction techniques for the recovery of biomolecules of interest contained in complex matrixes. In particular, the scope is based on though not limited to studies at pilot scales prior to industrial exploitations, the combination of green techniques to overcome some shortcomings, and research related to environmental impact. Both original papers and reviews are welcome.

Dr. Loubna Firdaous
Prof. Dr. Pascal Dhulster
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 papers will be 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 2000 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

  • high-value biomolecules
  • biomolecule characterization
  • biomass
  • industrial byproducts
  • advanced solvents
  • supercritical fluid extraction
  • pulsed electric-assisted extraction
  • enzyme-assisted extraction
  • microwave-assisted extraction
  • ultrasound-assisted extraction
  • high-pressure-assisted extraction
  • pressurized liquid extraction
  • extrusion-assisted extraction
  • membrane technology
  • emerging aqueous two-phase systems
  • ionic liquid-based extraction
  • environmental impact

Published Papers (1 paper)

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Research

Article
Selective Extraction of Sinapic Acid Derivatives from Mustard Seed Meal by Acting on pH: Toward a High Antioxidant Activity Rich Extract
Molecules 2021, 26(1), 212; https://doi.org/10.3390/molecules26010212 - 03 Jan 2021
Viewed by 1082
Abstract
The aim of this paper is to study the effect of the pH on the extraction of sinapic acid and its derivatives from mustard seed meal. Solutions of acidic pH (pH 2), basic pH (pH 12) and distilled water (uncontrolled pH ~ 4.5) [...] Read more.
The aim of this paper is to study the effect of the pH on the extraction of sinapic acid and its derivatives from mustard seed meal. Solutions of acidic pH (pH 2), basic pH (pH 12) and distilled water (uncontrolled pH ~ 4.5) were tested at different percentages of ethanol. The maximum extraction yield for sinapic acid (13.22 µmol/g of dry matter (DM)) was obtained with a buffered aqueous solution at pH 12. For ethyl sinapate, the maximum extraction yield reached 9.81 µmol/g DM with 70% ethanol/buffered aqueous solution at pH 12. The maximum extraction yield of sinapine (15.73 µmol/g DM) was achieved with 70% ethanol/buffered aqueous solution at pH 2. The antioxidant activity of each extract was assessed by DPPH assay; the results indicated that the extracts obtained at pH 12 and at low ethanol percentages (<50%) exhibit a higher antioxidant activity than extracts obtained at acidic conditions. Maximum antioxidant activity was reached at pH 12 with buffer solution (11.37 mg of Trolox Equivalent/g DM), which confirms that sinapic acid-rich fractions exhibit a higher antioxidant activity. Thus, to obtain rich antioxidant extracts, it is suggested to promote the presence of sinapic acid in the extracts. Full article
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