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L-malic acid production using immobilized saccharomyces cerevisiae
Applied Biochemistry and Biotechnology, 1991L-Malate was produced from fumarate by using immobilized Saccharomyces cerevisiae cells entrapped in polyacrylamide. This preparation performed better when pretreated with malonate. Under the experimental conditions described here, succinate was not detected as a by-product of the reaction, as had been reported for other microorganisms.
Z M, Figueiredo, L B, Carvalho Júnior
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X-Irradiation of L -Malic Acid in Aqueous Solutions
Radiation Research, 1956It is the general observation that organic substances in aqueous solution undergo decomposition on exposure of the solutions to ionizing radiation. Present theories assume that solute decomposition results from chemical reactions of the solute molecules with hydrogen atoms and hydroxyl radicals formed by the radiationinduced dissociation of the water ...
F K, PUTNEY, A W, PRATT
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L‐malic acid production from xylose by engineered Saccharomyces cerevisiae
Biotechnology Journal, 2021AbstractL‐malic acid is widely used in the food, chemical, and pharmaceutical industries. Here, we report on production of malic acid from xylose, the second most abundant sugar in lignocellulosic hydrolysates, by engineered Saccharomyces cerevisiae. To enable malic acid production in a xylose‐assimilating S. cerevisiae, we overexpressed PYC1 and PYC2,
Nam Kyu Kang +3 more
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Schizosaccharomyces malidevorans sp.n., a yeast decomposing L-malic acid
Antonie van Leeuwenhoek, 1964A new yeastSchizosaccharomyces malidevorans sp.n. is described. It resemblesSchizosaccharomyces pombe but differs from it in appearance of the spores and inability to ferment maltose. It decomposesl-malic acid completely in all grape juice and synthetic media tested, but not thed-isomer.
B C, RANKINE, J C, FORNACHON
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A Bioreactor-Crystallizer for L-Malic Acid Production
Biocatalysis, 1988A bioreactor with associated crystallizer for the accumulation of a highly concentrated slurry product has been developed and investigated. The transformation of Ca-fumarate to Ca-L-malate by the action of the fumarase of immobilized Brevibacterium flavum cells focussed on the performance of this newly-devised bioreactor-crystallizer system.The ...
Masakatsu Furui +3 more
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Enzymatic determination of l-malic acid in honey
Food Chemistry, 1998L-Malic acid determination has been carried out in honey using a direct enzymatic method. The sample solution was prepared from 2.5 g honey in 100 ml Milli-Q water. The enzymatic determination was measured spectrophotometrically at 340 nm, using glutamate-oxaloacetate transaminase and L-malate dehydrogenase. The direct method combines precision (CV was
Inés Mato +5 more
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Stereoselective total synthesis of (−)-decarestrictine D from l-malic acid
Tetrahedron Letters, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Palakodety Radha Krishna +1 more
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A stereospecific synthesis of (−)-Bestatin from L-malic acid
Tetrahedron Letters, 1992Abstract A highly diastereospecific route to (−)-Bestatin from L-Malic Acid has been developed. This approach features a stereocontrolled alkylation of diethyl (S)-malate and proceeds through an oxazolidone via a Curtius Rearrangement.
Bryan H. Norman, Michelle L. Morris
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Total Synthesis of Xestodecalactone C from l-Malic Acid
Synthesis, 2009An efficient total synthesis of the ten-membered macrolide, xestodecalactone C is described. The synthetic sequence uses Barbier-allylation, LiAlH 4 /LiI-mediated syn-stereoselective 1,3-asymmetric reduction, and intramolecular Friedel―Crafts acylation as key steps.
J. Yadav +4 more
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Continuous production of L-malic acid by immobilized cells
Trends in Biotechnology, 1983Abstract l-Malic acid is used extensively in the pharmaceutical industry and as a food additive. It is now produced on an industrial scale by the enzymatic conversion of fumaric acid using immobilized cells of Brevibacterium flavum . Recent improvements to this system, especially the use of x -carrageenan supports, have resulted in a continuous ...
Ichiro Chibata +2 more
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