Maoka Takashi, Akimoto Naoshige
Research Institute for Production Development, Kyoto, Japan.
J Oleo Sci. 2008;57(3):145-52. doi: 10.5650/jos.57.145.
Carotenoids and their fatty acid esters in the carapace of the spiny lobster Panulirus japonicus were investigated. Fatty acid esters of astaxanthin, adonixanthin, and pectenolone were characterized by (1)H-NMR and FAB-MS. The acylated position of adonixanthin and pectenolone monoesters was determined to be a hydroxy group at C-3' by (1)H-NMR. The fatty acids esterified with these carotenoids were identified as C22:6, C20:4, C20:5, C18:0, C18:1, C17:0, C16:0, C16:1, C14:0, and C12:0 from FAB-MS spectral data. Furthermore, 2,3-didehydrocanthaxanthin (4) was first identified as a natural product.
对日本龙虾（Panulirus japonicus）头胸甲中的类胡萝卜素及其脂肪酸酯进行了研究。通过¹H-NMR和FAB-MS对虾青素、阿多尼黄质和扇贝酮的脂肪酸酯进行了表征。通过¹H-NMR确定阿多尼黄质和扇贝酮单酯的酰化位置为C-3'处的羟基。根据FAB-MS光谱数据，鉴定出与这些类胡萝卜素酯化的脂肪酸为C22:6、C20:4、C20:5、C18:0、C18:1、C17:0、C16:0、C16:1、C14:0和C12:0。此外，首次将2,3-去氢角黄素（4）鉴定为天然产物。
