Photocatalytic conversion of lactic acid to malic acid through pyruvic acid in the presence of malic enzyme and semiconductor photocatalysts

1992 ◽  
Vol 88 (15) ◽  
pp. 2215 ◽  
Author(s):  
Hiroshi Inoue ◽  
Mikio Yamachika ◽  
Hiroshi Yoneyama
Keyword(s):  
Lactic Acid ◽  
Pyruvic Acid ◽  
Malic Acid ◽  
Malic Enzyme

REGULATION OF THE "MALIC" ENZYME IN NEUROSPORA CRASSA

1967 ◽  
Vol 13 (9) ◽  
pp. 1211-1221 ◽  
Author(s):  
M. W. Zink
Keyword(s):  
Cell Growth ◽  
Neurospora Crassa ◽  
Growth Phase ◽  
Pyruvic Acid ◽  
Malic Acid ◽  
Malic Enzyme ◽  
Enzyme Preparation ◽  
Growth Cycle ◽  
Oxidative Decarboxylation ◽  
Enzyme Repression

"Malic" enzyme has been isolated from Neurospora crassa which can bring about the reversible carboxylation of pyruvic acid. The enzyme is specific to L-malate and NADP and is activated by Mn++ and Mg++. The partially purified enzyme does not decarboxylate oxaloacetate but is competitively inhibited by it. This enzyme is synthesized only during the early stages of the growth cycle and is repressed by acetate. In addition, the oxidative decarboxylation of malic acid is competitively inhibited by aspartic acid; the degree of inhibition depends upon the cell growth phase from which the enzyme is extracted. "Malic" enzyme isolated from a 12-h culture is not significantly inhibited by aspartate. However, this inhibition increases to 90% if an enzyme preparation from a 24-h culture is used. The significance of enzyme repression by acetate and the inhibition of the activity by aspartate are discussed.

Listeria monocytogenes survival in the presence of malic acid, lactic acid or blueberry extract

2017 ◽  
Vol 7 (1) ◽  
pp. 33-41
Author(s):  
Anibal Concha-Meyer ◽  
Joseph D. Eifert ◽  
Robert C. Williams ◽  
Joseph E. Marcy ◽  
Gregory E. Welbaum
Keyword(s):  
Lactic Acid ◽  
Listeria Monocytogenes ◽  
Malic Acid

Super‐tough poly(lactic acid) using a fully bio‐based polyester containing malic acid via in‐situ interfacial compatibilization

2021 ◽  
pp. 51413
Author(s):  
Rong Yang ◽  
Hongwei Cao ◽  
Chong Li ◽  
Guoxiang Zou ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Malic Acid ◽  
Poly Lactic Acid
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