Vitamin Potency of Cod-Liver Oils.

Holmes, Arthur D.; Pigott, Madeleine G.

doi:10.1021/ie50183a041

Cited by 2 publications

(3 citation statements)

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“…Since an earlier investigation in this laboratory (28) showed that dogfish liver oil contained significant amounts of vitamin A, a typical oil was obtained for investigation. Since an earlier investigation in this laboratory (28) showed that dogfish liver oil contained significant amounts of vitamin A, a typical oil was obtained for investigation.…”

Section: Pike Liver Oil (Esor Musquinongy)mentioning

confidence: 99%

“…This oil was manufactured on a commercial basis from livers taken from fish caught along New England shores. Holmes and Pigott (28) reported that a composite oil from five dogfish livers had the following characteristics: specific gravity 0.9153, refractive index 1.4762, saponification value 169.3, iodine number 145.8, and free fatty acid 0.2641 per cent. Guha,Hilditch,and Lovern (18) found that the unsaponifiable content of dogfish liver oil varied from 4.0 to 32.9 per cent.…”

Section: Pike Liver Oil (Esor Musquinongy)mentioning

confidence: 99%

“…Dogfish Liver Oil (Squalus acanthias L.). Since an earlier investigation in this laboratory (28) showed that dogfish liver oil contained significant amounts of vitamin A, a typical oil was obtained for investigation. This oil was manufactured on a commercial basis from livers taken from fish caught along New England shores.…”

Section: Mackerel Liver Oilsmentioning

confidence: 99%

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Fish Liver and Body Oils

Holmes¹,

Tripp²,

Satterfield³

1941

Ind. Eng. Chem.

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The chemical and physical characteristics and vitamin potency of thirty-nine fishThe E. L. Patch Company, Boston, Mass. liver and fish body oils have been determined. The chemical and physical charac-G. HOWARD SATTERFIELD teristics were tested by methods i n the U. S. Pharmacopoeia XI. The vitamin A potency was determined by the Hilger spectrophotometric, the Carr-Price colorimetric, or the U. S. P. XI biological assay method.The vitamin potency of the swordfish liver oils increased with increase in the amount of unsaponifiable material, but the relation was not entirely consistent. The vitamin A potency of the mackerel liver oils also tended to increase with increase in the amount of unsaponifiable material but the relation was not consistent.Of the other oils there seemed to be no consistent relation between any of the chemical or physical characteristics and their vitamin potency. Thus, i t is extremely difficult if not impossible to gain information concerning the vitamin potency of a fish liver or body oil by the determination of its chemical and physical characteristics.

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Section: Pike Liver Oil (Esor Musquinongy)mentioning

confidence: 99%

Section: Pike Liver Oil (Esor Musquinongy)mentioning

confidence: 99%