Auto-Oxidation Products of Astaxanthin

作者：Etoh Hideo; Suhara Mika; Tokuyama Sinji; Kato Hideaki; Nakahigashi Rie; Maejima Yasunori; Ishikura Masaharu; Terada Yukimasa; Maoka Takashi^*

来源：Journal of Oleo Science, 2012, 61(1): 17-21.

DOI：10.5650/jos.61.17

• auto-oxidation
• astaxanthin
• apoastaxanthinal
• apoastaxanthinone
• stable molecular energy calculation

The auto-oxidation products of astaxanthin were investigated. Astaxanthin was allowed to react with atmospheric oxygen at 55 C in the dark for 35 days. A series of oxidative cleavage products, 7-apoastaxanthinal (1), 9-apoastaxanthinone (2), 11-apoastaxanthinal (3), 13-apoastaxanthinone (4), 15-apoastaxanthinal (5), 14%26apos;-apoastaxanthinal (6), 12%26apos;-apoastaxanthinal (7), 10%26apos;-apoastaxanthinal (8), and 8%26apos;-apoastaxanthinal (9), were identified. Among them, 3 and 6 were isolated and characterized for the first time. Cleavage of the double bond in astaxanthin was discussed on the basis of the calculation of the stable molecular energy.

• 出版日期2012-1