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KMID : 1007520010100020204
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Food Science and Biotechnology
2001 Volume.10 No. 2 p.204 ~ p.207
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Iron (III) Decreases Astaxanthin Production in Phaffia rhodozyma (Xanthopyllomyces dendrorhous)
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SONG, KYUNG BIN
An, Gil Hwan/Kim, Chul Jai/Jang, Byung Gui/Suh, Ok Seok
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Abstract
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Reactive oxygen species increases carotenogenesis in the yeast Phaffia rhodozyma. Among metal ions (Mn^(++), Zn^(++), Cu^(++) and Fe^(+++)) related to the removal of reactive oxygen species, Fe^(+++) and Mn^(++) decreased the carotenoid production in P. rhodozyma. The weak oxygen radical scavengers (Zn^(++) and Cu^(++)) did not affect carotenogenesis of the yeast. The astaxanthin content in the yeast was significantly decreased at > 1 ㎎/L of FeCl₃, and the growth of P. rhodozyma was poor at <0.1 ㎎/L of FeCl₃. Therefore, media containing 0.1-1 ㎎/L of FeCl₃are recommended for the production of astaxanthin from P. rhodozyma. Increased oxygen scavenging activity of Mn^(++) (0-10 ㎎ MnS0₄/L,) in the presence of succinate also decreased carotenoid production in the yeast.
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