alpha-carotene and retinol-acetate

alpha-carotene has been researched along with retinol-acetate* in 1 studies

Other Studies

1 other study(ies) available for alpha-carotene and retinol-acetate

Article	Year
Retinol equivalence of carotenoids can be evaluated by hepatic vitamin A content. International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition, 2000, Volume: 70, Issue:2 The present study demonstrates a new method to evaluate the bioavailability of carotenoids based on the calculation of the hepatic retinol contents. Weaning male rats of Wistar strain were divided into 5 groups. Each group respectively received retinol acetate (2000-10,000 IU per kg diet), alpha-carotene (2400-6000 micrograms per kg diet), beta-carotene (2400-6000 micrograms per kg diet), mixture of alpha- and beta-carotenes in the ratio of 1:2 (2400 and 4800 micrograms per kg dit), and palm-carotene oil (2400-6000 micrograms per kg diet). The derived retinol equivalences of each carotenoid calculated according to the hepatic retinol contents were almost constant regardless of the volume of respective intake (alpha-carotene: 1.25 micrograms per IU; beta-carotene: 0.59 microgram per IU; mixture of alpha- and beta-carotene in the ratio of 1:2: 0.96 microgram per IU; Palm-carotene oil: 1.23 micrograms per IU). The results suggest that the hepatic retinol contents can be used as a new measure to evaluate the vitamin A bioavailability of carotenoids. Topics: Animals; beta Carotene; Biological Availability; Carotenoids; Diterpenes; Liver; Male; Palm Oil; Plant Oils; Rats; Rats, Wistar; Retinyl Esters; Therapeutic Equivalency; Vitamin A; Weight Gain	2000

Article

Year

Retinol equivalence of carotenoids can be evaluated by hepatic vitamin A content.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition, 2000, Volume: 70, Issue:2

The present study demonstrates a new method to evaluate the bioavailability of carotenoids based on the calculation of the hepatic retinol contents. Weaning male rats of Wistar strain were divided into 5 groups. Each group respectively received retinol acetate (2000-10,000 IU per kg diet), alpha-carotene (2400-6000 micrograms per kg diet), beta-carotene (2400-6000 micrograms per kg diet), mixture of alpha- and beta-carotenes in the ratio of 1:2 (2400 and 4800 micrograms per kg dit), and palm-carotene oil (2400-6000 micrograms per kg diet). The derived retinol equivalences of each carotenoid calculated according to the hepatic retinol contents were almost constant regardless of the volume of respective intake (alpha-carotene: 1.25 micrograms per IU; beta-carotene: 0.59 microgram per IU; mixture of alpha- and beta-carotene in the ratio of 1:2: 0.96 microgram per IU; Palm-carotene oil: 1.23 micrograms per IU). The results suggest that the hepatic retinol contents can be used as a new measure to evaluate the vitamin A bioavailability of carotenoids.

Topics: Animals; beta Carotene; Biological Availability; Carotenoids; Diterpenes; Liver; Male; Palm Oil; Plant Oils; Rats; Rats, Wistar; Retinyl Esters; Therapeutic Equivalency; Vitamin A; Weight Gain

2000