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The Nutrient Content of High and Low Quality Fresh Eggs
- Source :
- Poultry Science. 26:626-631
- Publication Year :
- 1947
- Publisher :
- Elsevier BV, 1947.
-
Abstract
- IN AN attempt to relate the quality of eggs to their chemical composition, eggs of high and low albumen quality were assayed comparatively for their content of certain vitamins. Procedures for the selection and handling of samples are detailed in the previous paper, as is also the uniform procedure for digestion and extraction of subsamples for microbiological assays. Nicotinic acid was determined by the method of Krehl, Strong and Elvehjem (1943), using Lactobacillus arabinosus 17-5 as the test organism. Apparent * folic acid and apparent* pyridoxine were measured with Streptococcus faecalis, by modifications, of the methods of Luckey, Briggs and Elvehjem (1944) and of Snell, Guirard and Williams (1942), respectively. In all microbiological assays folic acid added was the pure synthetic material. † Carotene was determined colorimetrically in a washed, dried petroleum ether extract of the saponified yolk samples. Vitamin A was measured colorimetrically also, following addition of the Carr-Price (1926) reagent . . .
- Subjects :
- Vitamin
food.ingredient
medicine.medical_treatment
media_common.quotation_subject
chemistry.chemical_compound
food
Animal science
Yolk
medicine
Petroleum ether
Quality (business)
media_common
Chromatography
Chemistry
Extraction (chemistry)
Carotene
General Medicine
Pyridoxine
Total dissolved solids
Nutrient content
Environmental chemistry
Total nitrogen
Oviduct
Animal Science and Zoology
Composition (visual arts)
Digestion
medicine.drug
Subjects
Details
- ISSN :
- 00325791
- Volume :
- 26
- Database :
- OpenAIRE
- Journal :
- Poultry Science
- Accession number :
- edsair.doi.dedup.....27ee1ef0aee15590193fcd8ce1f0c505
- Full Text :
- https://doi.org/10.3382/ps.0260626