A5022411004- Enzyme Catalysis and Immobilization
- Catalysis for Biomass Conversion
- Microbial Metabolic Engineering and Bioproduction
- Biofuel production and bioconversion
- Electrochemical sensors and biosensors
- Food Chemistry and Fat Analysis
- biodegradable polymer synthesis and properties
- Metal complexes synthesis and properties
- Ionic liquids properties and applications
- Hydrogels: synthesis, properties, applications
- Polysaccharides Composition and Applications
- Mesoporous Materials and Catalysis
- Phytochemicals and Antioxidant Activities
- Advanced Glycation End Products research
- Carbohydrate Chemistry and Synthesis
- Tea Polyphenols and Effects
- Proteins in Food Systems
- Ferrocene Chemistry and Applications
- Bacterial biofilms and quorum sensing
- Metal-Organic Frameworks: Synthesis and Applications
- Synthesis of Tetrazole Derivatives
- Antioxidant Activity and Oxidative Stress
- Nanocomposite Films for Food Packaging
- Iterative Learning Control Systems
- Polysaccharides and Plant Cell Walls
Guangdong Pharmaceutical University
2016-2025
University of Hong Kong
2024
Zhongshan Hospital
2017
South China University of Technology
2002-2015
State Key Laboratory of Respiratory Disease
2004
Foodborne pathogens are the main factors behind foodborne diseases and food poisoning thus pose a great threat to safety.
Abstract The present study was aimed at selecting an efficient binary solvent mixture for monoacylglycerol (MAG) synthesis by enzymatic glycerolysis of soybean oil. Solvent combinations tert ‐butanol/isopropanol (v/v) different ratios were studied. Of the investigated cases, ‐butanol:isopropanol ratio 80:20 most suitable organic medium. optimum conditions MAG under selected were: water 10 wt% based on glycerol, Lipozyme TL IM 15 oil and weight to 4:1, molar glycerol 3.5:1. Under these with a...
Abstract Background Pure 1, 3-diacylglycerols (1, 3-DAG) have been considered to be significant surfactants in food, cosmetics and pharmaceutical industries, as well the effect on obesity prevention. Methods In this study, a vacuum-driven air bubbling operation mode was developed evaluated for enzymatic synthesis of 3-DAG saturated fatty acids, by direct esterification glycerol with acids solvent-free system. The employed comparable N 2 protocol, terms lauric acid conversion 3-dilaurin...
Abstract BACKGROUND Immobilized enzyme possessing both high activity and good selectivity is important in practice. In this study, Candida antarctica lipase B (CALB) was immobilized onto the macroporous resin ADS‐17 for triacylglycerol (TAG) synthesis through esterification of oleic acid glycerol. The reaction conditions were optimized by single‐factor study orthogonal test, reusability CALB (CALB@ADS‐17) evaluated. addition, mechanism immobilization studied catalytic CALB@ADS‐17...
Two new Ru(II) complexes, [Ru(bpy)2(FAMP)](ClO4)2 1 and 2, are synthesized characterized by elemental analysis, electrospray mass spectrometry, 1H nuclear magnetic resonance. The in vitro cytotoxicities apoptosis-inducing properties of these complexes extensively studied. Complexes 2 exhibit potent antiproliferative activities against a panel human cancer cell lines. cycle analysis shows that effective growth inhibition triggering G0/G1 phase arrest inducing apoptosis mitochondrial...
In the present study, lipases of TLL (lipase from Thermomyces lanuginosus), AOL Aspergillus oryzae), RML Rhizomucor miehei), BCL Burkholderia cepacia), CALA (Candida antarctica lipase A) and LU (Lecitase® Ultra) were encapsulated into nucleotide-hybrid metal coordination polymers (CPs). Enzyme concentration was optimized for encapsulation enzymatic properties obtained investigated. addition, their performance in glycerolysis esterification evaluated, conditions (water content, temperature...
Monoacylglycerols (MAG) are nonionic emulsifiers, widely used in food, pharmaceutical, and cosmetic industries. Besides the bulk applications food dairy industries, pure MAG also of great interest synthetic organic chemistry where they as intermediates chiral building blocks. Reaction routes for production including direct esterification glycerol fatty acids, interesterification between acid esters, glycerolysis TAG glycerol, partial hydrolysis TAG, well alcoholysis TAG. During past few...
Abstract The present study aimed to produce MAG through low‐temperature chemical glycerolysis. Over 80% yield with 97% TAG conversion was obtained within short reaction times at temperature of 35–55°C, when tert ‐butanol (TB) or ‐pentanol (TP) used as medium and sodium hydroxide (NaOH) catalyst. TB gave a faster rate than TP. Catalysts were important for the glycerolysis reaction. Of eight common base catalysts evaluated, only NaOH potassium (KOH) effective, better KOH. Reaction parameters...
In this study, mesoporous silica SBA‐15 is modified by imidazole based ionic liquids (IL) with three different side‐chain length of cations and two anions. Prepared supports (IL‐SBA‐15) are characterized small‐angle powder X‐ray diffraction (XRD), photoelectron spectroscopy (XPS) as well Fourier transform infrared (FT‐IR), then used to immobilize Candida antarctica lipase B (CALB). The enzymatic properties the obtained IL‐SBA‐15‐CALB evaluated, catalytic selectivity toward diacylglycerols...
The present study aimed to develop a heterogeneous catalysis process for diacylglycerols (DAG) production through low‐temperature chemical glycerolysis. Of the catalysts evaluated, MgO‐supported KOH (KOH–MgO) was found effective glycerolysis, and KOH–MgO characterized by FT‐IR powder XRD. Reaction temperature of paramount importance 80°C necessary enhance reaction. Molar ratio oil glycerol at stoichiometric (2:1) gave more DAG formation. 41.8 ± 0.8 wt% obtained under these conditions:...
Abstract In this study, 1‐butyl‐3‐methylimidazolium imidazolide ([Bmim]Im) was found effective to catalyze the glycerolysis of triacylglycerols (TAG) for selective production diacylglycerols (DAG). About 60 % content DAG and 80 conversion TAG were achieved with [Bmim]Im at 15 (wt% based on TAG), without requirement any other catalyst reaction medium. addition, weight ratio monoacylglycerols (MAG) 0.9 when glycerol/TAG mole 5:1, indicating generation.
In this study, SBA-15 was functionalized by silane coupling reagents, then lipase from Thermomyces lanuginosus (TLL) immobilized onto the parent and organically modified for diacylglycerol (DAG) production through glycerolysis.Diacylglycerol content of 54.77 ± 0.63%, triacylglycerol (TAG) conversion 77.75 1.24%, were obtained supported TLL-mediated glycerolysis reaction in a solvent-free system. However, poor performance unexpectedly observed when co-solvents introduced into After organic...