Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Laurence A. Rolle"'
Publikováno v:
Journal of Food Science. 27:593-596
SUMMARY A method for estimating the total monoterpene hydrocarbon content of citrus oils is described. The procedure consists of adding an internal standard (n-butylbenzene) to the oils, spotting the mixture on a chromatostrip, eluting the hydrocarbo
Publikováno v:
Journal of AOAC INTERNATIONAL. 46:353-358
The total amino acid and i-malic acid content of 61 samples of commercial California-Arizona lemon juice and lemon juice concentrates were studied. In characterizing these juices, relationships were observed between the natural citric acid content an
Publikováno v:
Journal of Food Science. 31:58-62
SUMMARY The variables included storage prior to processing, heavy and light juice-extraction pressures, and various methods of juice finishing. Lemons stored for 15 weeks dropped 64% in l-malic acid but increased 34% in the total amino acids. Total p
Publikováno v:
Journal of Agricultural and Food Chemistry. 10:98-102
Publikováno v:
Journal of Food Science. 26:43-48
SUMMARY The Girard-T reagent was used to recover the aldehydes from cold-pressed lemon, orange and grapefruit oils for subsequent quantitative gas chromatographic analysis. Optimum conditions for analysis were worked out with a known mixture of citra
Autor:
Laurence A. Rolle, Carl E. Vandercook
Publikováno v:
Journal of AOAC INTERNATIONAL. 46:359-362
The total polyphenolics content of 61 samples of California-Arizona lemon juice were determined by measuring their ultraviolet spectra in an alcoholic solution. In characterizing these juices, relationships were observed between total polyphenolics c
Autor:
Carl E. Vandercook, Laurence A. Rolle
Publikováno v:
Journal of AOAC INTERNATIONAL. 46:362-365
A multiple regression analysis of the total amino acids, l-malic acid, and total polyphenolics content of 61 samples of commercial California-Arizona lemon juice yields an equation which can be used to characterize the authenticity of lemon juice sam