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Application of derivative ratio spectrophotometry for determination of |?-carotene and astaxanthin from Phaffia rhodozyma extract* |
NI Hui, HE Guo-qing, RUAN Hui, CHEN Qi-he, CHEN Feng |
Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China; Department of Food Science and Human Nutrition, Clemson University, Clemson, South Carolina 29634, USA |
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Abstract A derivative ratio spectrophotometric method was used for the simultaneous determination of |?-carotene and astaxanthin produced from Phaffia rhodozyma. Absorbencies of a series of the standard carotenoids in the range of 441 nm to 490 nm demonst
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Received: 01 December 2004
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