It is highly profitable to transform glycerol - the main by-product from biodiesel production to high value-added chemicals. In this work, we develop a photoelectrochemical system based on nanoporous BiVO for selective oxidation of glycerol to 1,3-dihydroxyacetone - one of the most valuable derivatives of glycerol. Under AM 1.5G front illumination (100 mW cm) in an acidic medium (pH = 2) without adscititious oxidant, the nanoporous BiVO photoanode achieves a glycerol oxidation photocurrent density of 3.7 mA cm at a potential of 1.2 V versus RHE with 51% 1,3-dihydroxyacetone selectivity, equivalent to a production rate of 200 mmol of 1,3-dihydroxyacetone per m of illumination area in one hour.
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http://dx.doi.org/10.1038/s41467-019-09788-5 | DOI Listing |
Food Chem
March 2025
State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China; Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
Liposome systems are highly advantageous for encapsulating curcumin with improved solubility and bioactivity. However, the conventional preparation of curcumin-loaded nanoliposomes is often hindered by the complex synthesis process, specialized equipment and the use of toxic organic solvents. This study presents a simple and green method for preparing curcumin-loaded nanoliposomes.
View Article and Find Full Text PDFChemistry
March 2025
School of chemistry and molecular engineering, Nanjing Tech University, CHINA.
Gold/palladium binary catalysts have been widely used to the selective oxidation of glycerol to produce value-added chemicals. However, the essential effect of the structure of Au/Pd binary catalysts on the catalytic performance has not been elucidated yet. In this work, Au, Pd, AuPd alloy, Au@Pd core-shell, and Au-Pd Janus nanoparticle catalysts prepared by sol-immobilization and photochemical deposition methods were employed to the selective oxidation of glycerol toward dihydroxyacetone (DHA).
View Article and Find Full Text PDFBioresour Technol
March 2025
State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China; Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, 2005 Songhu Road, Shanghai 200438, PR China. Electronic address:
To efficiently produce myo-inositol from glucose, the PGI1, ZWF1, ITR2, and MIOX5 genes in Kluyveromyces marxianus were knocked out to block glucose metabolism via the Embden-Meyerhof-Parnas (EMP) and pentose phosphate pathways (PPP), prevent myo-inositol oxidative degradation. The metabolically engineered KM-JC4 strain, introduced with myo-inositol synthesis genes, produced 80.7 g/L in a 5 L bioreactor using glucose and glycerol as carbon sources.
View Article and Find Full Text PDFSci Rep
March 2025
Department of Packaging Engineering, Henan University of Science and Technology, Luoyang, China.
In order to prepare a chitosan-based antibacterial film with excellent mechanical properties and study its properties, the tape casting method was used to prepare the composite film from chitosan, glycerin and thyme essential oil. Through single factor test and response surface optimization test, the tensile strength and elongation at break were used as response indicators to prepare the composite film with better mechanical properties, and the physical properties, water vapor permeability, solubility and bacteriostasis of the composite film were measured, and the characterization of the microstructure of the composite films. The results showed that the optimized composite film ratio was 1.
View Article and Find Full Text PDFBraz J Microbiol
March 2025
Department of Chemical Engineering, National Institute of Technology, Surathkal, Mangalore, 575025, Karnataka, India.
In the quest for sustainable fuel sources, chitin-based biorefineries are gaining recognition as chitin is the second most abundant bioresource after cellulose. This approach not only provides an effective method for converting shell waste from seafood processing into valuable bioethanol but also helps in waste management. In this study, Bacillus haynesii, a marine isolate, was investigated and this is the first report on optimisation of process parameters for chitinase production from Bacillus haynesii.
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