Pfizer Handbook of Microbial Metabolites 28 



Pseudomonas species (on galactose) 

 Toshinohu Asai, Ko Aida and Yashuiro Ueno, /. Agr. Chem. 

 Soc. Japan 25 625 (1951-1952). 



28 D-GIucuronic Acid, C6H10O7, colorless needles, m.p. 165°, [ccW* 



+ 11.7°^ +36.3° (2 hours, c 1 in water). 



CHO 



I 

 HCOH 



I 

 HOCH 



HCOH 



I 

 HCOH 



I 

 COOH 



Ustulina vulgaricus 



H. Wunchendoroff and C. Killian, Compt. rend. 187 

 572 (1928). 



Not isolated — manner of identification not mentioned. 



Penicillium sp. 



Gizin Itto, /. Agr. Chem. Soc. Japan 9 552 (1933). 



K. Sivarama Sastry and P. S. Sarma, Nature 179 44 (1957). 



29 Saccharic Acid, CeHnjOg, colorless needles, m.p. 125°, [aW^ 



+6.86° -^ 20.6° (c 1 in water). 



COOH 



HCOH 



I 

 HOCH 



I 

 HCOH 



I 

 HCOH 



I 

 COOH 



Aspergillus niger 



T. K. Walker, Vira Subramanian and Frederick Chal- 

 lenger, J. Chem. Soc, 3044 (1927). 



About 3.6 g. of the potassium salt were obtained from 

 120 g. of glucose by interrupting the fermentation before 

 the appearance of much citric or oxalic acids. Also fer- 

 mentation of 20 g. of calcium gluconate gave 3.7 g. of 

 calcium saccharate. 



