Studies on the Carotenoids in Potamogeton Potamogeton Crispus Comparisons on the Characteristics of Carotenoids between Potamogeton Crispus andRed-yolk Duck Eggs

Abstract

Abstract: The ducks fed Potamogeton crispus could produce good red-yolk eggs. A kind of special red carotenoid pigmentswas found in Poamogeton crispus, and its red and some yellow pigments were in correspondence with the pigments in red-yolkeggs of ducks fed Potamogeton crispus as assayed by thin-layer chromatography (TLC) and UV-Vis spectroscopy. The redpigments in Potamogeton crispus were solubilized easily in acetone, alcohol and methyl acohol, and the wavelength of maximumabsorption (λmax) of it in acetone was 480nm. There was β-carotene found in both Potamogeton crispus and red-yolk duckseggs. Some characteristics of carotenoids in Potamogeton crispus were studied.

Key words: Potamogeton crispus L., red-yolk ducks eggs, carotenoids, characteristics

WANG Hai-Bin, PENG Guang-Hua, LIU Liang-Zhong, LIU Min, REN Dan-Dan, SHI Jia-Yi, ZHANG Sheng-Hua. Studies on the Carotenoids in Potamogeton Potamogeton Crispus Comparisons on the Characteristics of Carotenoids between Potamogeton Crispus andRed-yolk Duck Eggs[J]. FOOD SCIENCE, 2003, 24(11): 41-45.

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Studies on the Carotenoids in Potamogeton Potamogeton Crispus Comparisons on the Characteristics of Carotenoids between Potamogeton Crispus andRed-yolk Duck Eggs

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