710 A MANUAL OF THE PBNICILLIA 



Frey, a. 1931. Beziehungen zwischen der Wasserstoffonenkonzentration und der 

 Citronensaurebildung durch Aspergillus niger und Citromyces glaber. Arch. 

 f. Mikrobiol. 2: 272-309, 11 figs. 



Maze, P. and Perrier, A. 1904. Recherches sur le m^canisme de la combustion 

 respiratoire, production d'acide citrique par le Citromyces. Inst. Pasteur 

 Ann. (Paris) 18: 553-575. 



Palei, T. Y. and Osuicheva, A. G. 1936. Biochemical production of citric acid. 

 Mutual interaction of Aspergillus niger and Penicillium luteiim-purpuro- 

 genum Thom and Church. Inst. Sci. Research Food Ind. (Leningrad) Proc. 

 3: 146-156. 



Shaposhnikov, V. AND Manteifel, A. 1923. A morphological, physiological, and 

 biological study of Penicillium arenarium n. sp., in connection with citric 

 fermentation. (Trans, title) Trans. Sci. Chem.-Pharm. Inst. (Moscow) 1923, 

 No. 5: 1-64, figs. (In Russian — U. S. D. A. Library.) 



TiuKOW , D. 1931. Beitrag zur Einteilung der Schimmelpilze aus der Gattung Peni- 

 cillium nach physiologischen Eigenschaften. (Contribution to the clas- 

 sification of the moulds of the genus Penicillium according to physiological 

 properties.) Zentbl. f. Bakt. etc. (II) 83: 385-395. 



Wbhmer, C. 1893. Beitrage zur kenntnis einheimisher Pilze. I. Zwei neue Schim- 

 melpilze als Erreger einer Citronensaure-Garung, Hannover und Leipzig; 

 (Hansche Buchhandlung.) 



1893-1894. Process of making citric acid, U.S. Patent 515,033, Feb. 20, 1894; 



also German Patent 72957, Feb. 20, 1894; British Patent 5,620, Dec. 9, 1893; 

 and French Patent 228,554, Mar. 11, 1893. 



1925. Bildung von Citronensaure aus Glykonsaure durch Pilze. Deut. 



Chem. Gesell. Ber. 58: 2616-2619. 



— • 1928. Die Gattung Ciirojnyces und die Zitronensaurebildung. Centbl. f. 



Bakt. etc. (II) 73: 161-162. 



Gluconic Acid 



Angeletti, a. 1932. Calcium gluconate from gluconic acid obtained by the fer- 

 mentation method. Ann. Schiapparelli 6: 83-87. 

 ■ — AND Cerutti, C. F. 1931. The action of certain fungi on aldose solutions. 



II A. Ann. Chim. Applicata 21: 491-496. 

 AND Merlo, L. 1934. The influence of iron in the gluconic fermentation of 



Penicillium luteum-purpurogenum. X. Gluconic fermentation. Ann. Chim. 



Applicata 24: 468-472. 

 AND PoNTE, D. 1934. Action of various fungi on solutions of aldoses and 



other sugars. IX. Ann. Chim. Applicata 24: 232-236. 

 CuRRiE, J. N., Kane, J. H., and Finlay, A. 1933. Gluconic Acid. U. S. Patent 



1,893,819. 

 Herrick, H. T. and May, O. E. 1928. The production of gluconic acid by the 



P. luteum-purpurogenum group. II. Some optimal conditions for acid 



formation. Jour. Biol. Chem. 77: 185-195. 

 May, O. E., Herrick, H. T., Moyer, A. J., and Hellbach, R. 1929. Semi-plant 



scale production of gluconic acid by mold fermentation. Indus, and Engin. 



Chem. 21: 1198-1203. 

 , Herrick, H. T., Moyer, A. J., and Wells, P. A. 1934. Gluconic acid. 



Production of submerged mold growths under increased air pressure. Indus. 



and Engin. Chem. 26: 575-578. 



