Bovine actinomycosis exudate was studied to determine the chemical composition and mineral phase(s) of the so-called ‘sulphur granules’. The major constituents, CaO and P2Os, accounted for 86–89% of the ashed granules. The granules also contained Na, K, Mg (as oxides) and Cl which added up to 10–14 %. Although the X-ray diffraction patterns indicated only poorly formed apatite; the infrared spectrum could be interpreted as arising from poorly crystallized apatite and/or a partially dehydrated or hydrolysed octacalcium phosphate either or both mixed with anhydrous dicalcium phosphate. The formation of pyrophosphate (44·5 %) in the ignited granules indicated the presence of considerable acid phosphate in the original material.
ASTM publication 48-J, X-Ray Powder Data File1960 Philadelphia: American Society for Testing Materials;
BrownW. E.,
SmithJ. P.,
LehrJ. R.,
FrazierA. W.1962; Crystallographic and chemical reactions between octacalcium phosphate and hydroxyapatite. Nature, Lond 196:1050
CarlströmD.,
EngströmA.1956; Ultrastructure and distribution of mineral salt in bone tissue. The Biochemistry and Physiology of BoneBourneG. H.149 New York: Academic Press, Inc;
FrancoisP.,
HermanH.1961; Le compose mineral fondamental des tissus calcines. II. Les sels osseux contiennent un phosphate de calcium different de l’hydroxylapatite. Bull. Soc. Chim. Biol 43:643
FrazierP. D.,
ZipkinI.,
MillsL. F.1967; X-ray diffraction study of human bone; direct methods of estimating changes in line broadening. Arch. Oral Biol 12:73
HermanH.,
FrancoisP.,
FabryC.1961; Le composé minéral fondamental des tissus calcifiés. I. Présence de groupements acides dans le réseau apatitique des phosphates de calcium synthétiques. Bull. Soc. Chem 43:629
PineL.,
HowellA.,
Jun,
WatsonS. J.1960; Studies of the morphological, physiological and biochemical characters of Actinomyces bovis
. J. gen. Microbiol 23:403
RowlesS. L.1964Tooth Enamel, Proceedings of An International Symposium on the Composition, Properties and Fundamental Structure of Tooth EnamelStackM. J., and FearnheadR. W.
Bristol: John Wright and Sons, Ltd;