Vitamin A

Roels, Oswald A.; Mahadevan, S.

doi:10.1016/b978-1-4831-9701-2.50009-5

Cited by 21 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The quantitation of dehydroretinol was based on the retinol standard curve multiplied by the correction factor 1·26, which corresponds to the ratio of extinction coefficients for all-trans-retinol, E 1% 1 cm =1832, and 3,4-dehydroretinol, E 1% 1 cm =1450 (Roels & Mahadevan, 1967). The quantitation of dehydroretinyl esters was based on the standard curve of retinyl palmitate multiplied by the same correction factor.…”

Section: Quantitation Of Retinoidsmentioning

confidence: 99%

Rapid HPLC analysis of retinoids and dehydroretinoids stored in fish liver: comparison of two lake sturgeon populations

Doyon

Boileau

Fortin

et al. 1998

Journal of Fish Biology

View full text Add to dashboard Cite

All major retinoids (vitamin A) stored in the liver of lake sturgeon from two Québec lakes were analysed by high-performance liquid chromatography (HPLC). Four HPLC peaks represented approximately 90% of all liver retinoids. Their relative proportion was remarkably consistent in the two sturgeon populations with dehydroretinyl palmitate/oleate accounting for the largest proportion (50-60%). Most retinoids demonstrated significant positive correlations with age, but only in the Lake Berthelot sturgeon. The concentrations of all major retinoids were significantly (P<0·0001) lower, as much as 40 times lower, in the Lake Saint-Louis population. Possible explanations for the extremely low liver stores in the Lake Saint-Louis sturgeon are discussed.1998 The Fisheries Society of the British Isles

show abstract

Section: Quantitation Of Retinoidsmentioning

confidence: 99%

Rapid HPLC analysis of retinoids and dehydroretinoids stored in fish liver: comparison of two lake sturgeon populations

Doyon

Boileau

Fortin

et al. 1998

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…Such a behaviour is reminiscent of that of asymptotic series. A more detailed phenomenological investigation of these phenomena may be found in [43] or [44].…”

Section: The Problem Of Convergencementioning

confidence: 99%

Small denominators and exponential stability: From Poincaré to the present time

Giorgilli

1998

Seminario Mat. e. Fis. di Milano

View full text Add to dashboard Cite

show abstract

“…The result was a straight line with slope equallog k ' , from which the slope k ' was determined to be 4.46. For fermentation fluids a different determinatiqn of constants was developed by Bongenaar, et al [20] and Roels, et al [21]. Zemblowski and Kristiansen [22] presented the most recent version of the methods for fermentation liquids.…”

Section: Theoretical Basis F O R the Paddle Mixer Viscometermentioning

confidence: 99%

The Effect of Detergent Level and Dispersion Rheology on the Olefin Yield from Fractionation of Tallow

Glassner

Grulke

1987

Biotechnology Progress

View full text Add to dashboard Cite

Optimization of the detergent fractionation of tallow to maximize olein yield depends on selecting the correct detergency and rheological properties of the aqueous dispersion. The efficiency of the separation is related to the apparent viscosity of the mixture. The apparent viscosity of the dispersion as determined in a paddle mixer viscometer decreased from .3 Pa‐s to .1 Pa‐s as the olein yield increased from 66% to 79%.

show abstract

Vitamin A

Cited by 21 publications

References 0 publications

Rapid HPLC analysis of retinoids and dehydroretinoids stored in fish liver: comparison of two lake sturgeon populations

Rapid HPLC analysis of retinoids and dehydroretinoids stored in fish liver: comparison of two lake sturgeon populations

Small denominators and exponential stability: From Poincaré to the present time

The Effect of Detergent Level and Dispersion Rheology on the Olefin Yield from Fractionation of Tallow

Contact Info

Product

Resources

About