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Biobased Chemicals: Environmentally Friendly Solutions for Sustainable Development II

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

Deadline for manuscript submissions: closed (30 December 2022) | Viewed by 3441

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Dear Colleagues,

The substitution of conventional raw materials with biobased requires a new approach to the development of technology. On the other hand, the use of biobased chemicals offers a host of a new palette of products that are natural and, thus, their application does not pose an impact on the environment (residues).

Biobased chemicals will become a promising potential group of products for different branches of industry in the future. A global shift to a ‘green’ chemistry, bio-based economy is currently underway. Replacement of conventional chemicals with bio alternatives derived from renewable biological resources is the modern trend in current legislation and, consequently, in industrial practice. The economic, environmental aspects of the utilization of biobased chemical products are being elaborated. In many cases through microbial conversion, as well as by utilization of bio-intermediates, new valuable, highly bioactive products can be received.

The second edition of the Special Issue will invite overview and original papers describing current and expected challenges along with potential solutions for biobased chemicals that offer a new environmentally friendly approach in industry and agriculture. Both experimental and theoretical papers are welcome.

Dr. Agnieszka Saeid
Guest Editor

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Published Papers (2 papers)

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Research

17 pages, 4062 KiB

Open AccessArticle

Multi-Dimensional Elimination of β-Lactams in the Rural Wetland: Molecule Design and Screening for More Antibacterial and Degradable Substitutes

by Shuhai Sun, Zhuang Li, Zhixing Ren and Yu Li

Molecules 2022, 27(23), 8434; https://doi.org/10.3390/molecules27238434 - 2 Dec 2022

Cited by 1 | Viewed by 1028

Abstract

Restricted economic conditions and limited sewage treatment facilities in rural areas lead to the discharge of small-scale breeding wastewater containing higher values of residual beta-lactam antibiotics (β-lactams), which seriously threatens the aquatic environment. In this paper, molecular docking and a comprehensive method were performed to quantify and fit the source modification for the combined biodegradation of β-lactams. Using penicillin (PNC) as the target molecule, combined with contour maps for substitute modification, a three-dimensional quantitative structure–activity relationship (3D-QSAR) model was constructed for the high-performance combined biodegradation of β-lactams. The selected candidate with better environmental friendliness, functionality, and high performance was screened. By using the homology modeling algorithms, the mutant penicillin-binding proteins (PBPs) of Escherichia coli were constructed to have antibacterial resistance against β-lactams. The molecular docking was applied to obtain the target substitute by analyzing the degree of antibacterial resistance of β-lactam substitute. The combined biodegradation of β-lactams and substitute in the constructed wetland (CW) by different wetland plant root secretions was studied using molecular dynamics simulations. The result showed a 49.28% higher biodegradation of the substitutes than PNC when the combined wetland plant species of Eichhornia crassipes, Phragmites australis, and Canna indica L. were employed. Full article

(This article belongs to the Special Issue Biobased Chemicals: Environmentally Friendly Solutions for Sustainable Development II)

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20 pages, 7848 KiB

Open AccessArticle

Seed Endophytic Achromobacter sp. F23KW as a Promising Growth Promoter and Biocontrol of Rhizoctonia Root Rot of Fenugreek

by Ehsan M. Rashad, Dalia M. Shaheen, Abdulaziz A. Al-Askar, Khalid M. Ghoneem, Amr Abker Arishi, El Sayed A. Hassan and WesamEldin I. A. Saber

Molecules 2022, 27(17), 5546; https://doi.org/10.3390/molecules27175546 - 29 Aug 2022

Cited by 6 | Viewed by 2079

Abstract

Root rot is one of the most significant soil and seed-borne fungal diseases, limiting the cultivation of fenugreek plants. Endophytic bacteria and their natural bioproducts have emerged as growth promoters and disease suppressors in the current era. Despite limited research, seeds are a good funder of endophytic microbiomes, which are transmitted from them to other seedling parts, thereby providing a shield against biotic and abiotic anxiety and promoting the growth at early germination and later stages. The current study evaluated the hypothesis that seed endophytic bacteria and their lytic enzymes, growth promotors, and antifungal molecules can induce growth, and inhibit root rot disease development at the same time. The isolation trial from fenugreek seeds revealed a lytic Achromobacter sp., which produces indole acetic acid, has antifungal compounds (e.g., 2-Butanol, 3,3’-oxybis-), and reduces the growth of Rhizoctonia solani by 43.75%. Under the greenhouse and natural field conditions, bacterial cells and/or supernatant improved the growth, physiology, and yield performance of fenugreek plants, and effectively suppressed the progress of root rot disease; this is the first extensive study that uses a new seed-borne endophytic bacterium as a plant-growth-promoting, and biocontrol tool against the sclerotia-forming; R. solani; the causative of fenugreek root rot. Full article

(This article belongs to the Special Issue Biobased Chemicals: Environmentally Friendly Solutions for Sustainable Development II)

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