PMID: 6537972Jan 1, 1984Paper

Treatment of dietary casein with formaldehyde reduces its hypercholesterolemic effect in rabbits

The Journal of Nutrition
C E WestL G Van Gils

Abstract

Rabbits were fed cholesterol-free, semipurified diets containing 42% (wt/wt) casein or 21% casein plus one of the following nitrogen sources: soy isolate, amino acid mixture simulating casein, amino acid mixture simulating soy isolate, formaldehyde-treated casein or formaldehyde-treated soy isolate. Two additional groups of rabbits were fed the 42% casein diet and the diet containing casein plus soy isolate to which 0.4% (wt/wt) pure formaldehyde was added, this amount being identical to the amount of formaldehyde present in the diets with formaldehyde-treated proteins. Growth was somewhat reduced on the three diets containing 42% casein. The diet containing 42% casein to which no formaldehyde had been added induced severe hypercholesterolemia, the level of serum cholesterol after 8 weeks being about 10 mmol/L. The hypercholesterolemia was markedly reduced by the replacement of half of the casein by soy isolate, formaldehyde-treated soy isolate or formaldehyde-treated casein. No significant reduction of the concentration of serum cholesterol was seen when half of the 42% casein was replaced by an amino acid mixture imitating either casein or soy isolate. Formaldehyde per se did not significantly influence the level of serum cho...Continue Reading

Citations

Sep 1, 1985·The British Journal of Nutrition·C J Woodward, K K Carroll
May 1, 1986·The British Journal of Nutrition·G S Sidhu, D G Oakenfull
Sep 1, 1985·Zeitschrift für Ernährungswissenschaft·K E ScholzC A Barth
Jan 1, 1987·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·A C BeynenL F Van Zutphen

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