scholarly journals The enzymology of dicarboxylic acid formation by Corynebacterium sp. strain 7E1C grown on n-alkanes

1993 ◽  
Vol 139 (6) ◽  
pp. 1337-1344 ◽  
Author(s):  
N. M. Broadway ◽  
F. M. Dickinson ◽  
C. Ratledge
Keyword(s):  
Dicarboxylic Acid ◽  
Acid Formation ◽  
Corynebacterium Sp

MECHANISM OF CITRIC ACID FORMATION FROM GLUCOSE BY ASPERGILLUS NIGER

1954 ◽  
Vol 32 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Ping Shu ◽  
A. Funk ◽  
A. C. Neish
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Dicarboxylic Acid ◽  
Acid Formation ◽  
Carbon 14 ◽  
Steady Rate ◽  
Tertiary Carbon ◽  
Rate Of Oxygen Consumption ◽  
Carboxyl Carbon ◽  
C 78

A medium containing glucose-1-C14 as the sole carbon source was fermented by Aspergillus niger under conditions giving a steady rate of oxygen consumption and a good yield of citric acid (63%). The citric acid was isolated and degraded by chemical methods to determine the carbon-14 concentration of the methylene carbons, the tertiary carbon, the tertiary carboxyl carbon, and the primary carboxyl carbons. These were found to contain, respectively, 35.6, 21.2, 7.25, and 5.99% of the C14 concentration of carbon-1 of the glucose. A mathematical analysis of these data in the light of current theories on citric acid formation suggested following conclusions: (a) 37–40% of the total citric acid was formed from recycled C4-dicarboxylic acid, (b) 40% of the dicarboxylic acid was formed through C2,C2 condensation and 60% through C1,C3 condensation, (c) 78% of the glucose was dissimilated through the Embden–Meyerhof scheme, the remainder being dissimilated through a mechanism involving carboxyl labeled pyruvic acid.

MECHANISM OF CITRIC ACID FORMATION FROM GLUCOSE BY ASPERGILLUS NIGER

1954 ◽  
Vol 32 (1) ◽  
pp. 68-80 ◽  
Author(s):  
Ping Shu ◽  
A. Funk ◽  
A. C. Neish
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Dicarboxylic Acid ◽  
Acid Formation ◽  
Carbon 14 ◽  
Steady Rate ◽  
Tertiary Carbon ◽  
Rate Of Oxygen Consumption ◽  
Carboxyl Carbon ◽  
C 78

A medium containing glucose-1-C14 as the sole carbon source was fermented by Aspergillus niger under conditions giving a steady rate of oxygen consumption and a good yield of citric acid (63%). The citric acid was isolated and degraded by chemical methods to determine the carbon-14 concentration of the methylene carbons, the tertiary carbon, the tertiary carboxyl carbon, and the primary carboxyl carbons. These were found to contain, respectively, 35.6, 21.2, 7.25, and 5.99% of the C14 concentration of carbon-1 of the glucose. A mathematical analysis of these data in the light of current theories on citric acid formation suggested following conclusions: (a) 37–40% of the total citric acid was formed from recycled C4-dicarboxylic acid, (b) 40% of the dicarboxylic acid was formed through C2,C2 condensation and 60% through C1,C3 condensation, (c) 78% of the glucose was dissimilated through the Embden–Meyerhof scheme, the remainder being dissimilated through a mechanism involving carboxyl labeled pyruvic acid.

scholarly journals Wet Air Oxidation of Oil Shales: Kerogen Dissolution and Dicarboxylic Acid Formation

ACS Omega ◽  
2020 ◽  
Vol 5 (35) ◽  
pp. 22021-22030
Author(s):  
Kristiina Kaldas ◽  
Gert Preegel ◽  
Kati Muldma ◽  
Margus Lopp
Keyword(s):  
Dicarboxylic Acid ◽  
Acid Formation ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Oil Shales

Self-assembly of enantiopure 2,2′-dimethylbiphenyl-6,6′-dicarboxylic acid. Formation of chiral squares and their columnar stacking

1999 ◽  
Vol 10 (17) ◽  
pp. 3277-3280 ◽  
Author(s):  
Miloš Tichý ◽  
Tomáš Kraus ◽  
Jiřı́ Závada ◽  
Ivana Cı́sařová ◽  
Jaroslav Podlaha
Keyword(s):  
Dicarboxylic Acid ◽  
Self Assembly ◽  
Acid Formation
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