Results 21 to 30 of about 6,531 (179)
Study on thermodynamics of glycerol hydrogenolysis to high value-added diols [PDF]
The thermodynamic process on hydrogenolysis of glycerol to high value-added diols was studied. The thermodynamic parameters of the main reaction equations were calculated, and the effects of temperature, pressure and molar ratio of hydrogen to glycerol ...
Liu Liping +3 more
doaj +1 more source
Aerobic excretion of 1,2-propanediol by Salmonella typhimurium [PDF]
Salmonella typhimurium excreted the rhamnose fermentation product 1,2-propanediol not only under anaerobic conditions, but also under aerobic conditions. The absence of an aldehyde dehydrogenase enzymatic activity that oxidizes to lactate the lactaldehyde formed in the dissimilation of rhamnose raised the intracellular concentration of the aldehyde ...
Baldoma L +3 more
openaire +4 more sources
In this study, alcoholysis of phosphatidylcholine (PC) catalyzed by two lipases (Novozym 435 and Lipozyme RM IM) was performed in n-hexane to evaluate the effects of mono-, di-, and trihydric alcohols (ethanol, 1-butanol, 1,2-ethanediol, 1,2-propanediol,
YANG Yingying +3 more
doaj +1 more source
Dissimilation of 1,2-propanediol by rumen micro-organisms [PDF]
1. The main products of fermentation of 1,2-propanediol weren-propanol and propionic acid, but variable amounts of acetic acid and carbon dioxide were also formed. The concentrations of an intermediate propionaldehyde increased and then decreased.2. A tentative scheme is suggested, showing that 1,2-propanediol is first dehydrated to propionaldehyde ...
J W, Czerkawski, G, Breckenridge
openaire +2 more sources
Methanol-utilizing bacteria, Klebsiella sp. No. 101 and Microcyclus eburneus could grow aerobically and statically on 1,2-propanediol. The authors examined the presence of enzyme activity of adenosyl-B12 dependent diol dehydratase as well as NAD dependent diol dehydroagenase.
NISHIO, Naomichi +3 more
openaire +2 more sources
Determination of 1,2-propanediol in milk by gas chromatography-mass spectrometry [PDF]
A method for the detection of 1,2-propanediol in milk by gas chromatography-mass spectrometry (GC-MS) was established by optimizing pretreatment and chromatographic conditions.
GAO Yujie, ZHANG Lijia, LI Peizhen, WU Xiaoli, MO Nan, BAI Yanmei, WANG Yang, LIU Lijun
doaj +1 more source
Glycerol and alkanediols are being studied as alternative solvents to extract phytochemicals from plant material, often as hydrogen bond donors in deep eutectic solvents (DESs).
Vanessa Vieira +5 more
doaj +1 more source
Exploring Lactobacillus reuteri DSM20016 as a biocatalyst for transformation of longer chain 1,2-diols: Limits with microcompartment. [PDF]
Lactobacillus reuteri metabolises glycerol efficiently to form 3-hydroxypropionic acid (3-HP) and 1,3-propanediol (1,3PDO) by the same mechanism as that for 1,2-propanediol (1,2PDO) conversion to propionic acid and propanol via its propanediol ...
Lu Chen, Rajni Hatti-Kaul
doaj +1 more source
Ceramides are sphingolipid compounds that are very attractive as active components in both the pharmaceutical and the cosmetic industries. In this study, the synthesis of 1-O,3-N-diacyl 3-amino-1,2-propanediol-type pseudo-ceramides was developed at the ...
Le Joubioux Florian +3 more
doaj +1 more source
Spectrophotometric determination of lipases, lysophospholipases, and phospholipases
Spectrophotometric techniques for determining the activities of lipases, lysophospholipases, and phospholipases are reviewed. These methods involve the use of thioester substrate analogs as well as omega-nitrophenyl derivatives of the corresponding ...
A A Farooqui +4 more
doaj +1 more source

