The present invention relates to methods for preparation of lycopenes, especially to lycopenes with high all-E contents or high 6Z contents from C15-Wittig slats mixtures. (with high all-E-contents and high 6Z-contents, respectively). C15-Wittig slats mixtures are purified and 6Z-C15-Wittig salts are extracted from the mixtures. The extracted 6Z-C15-Wittig salts are, used in the synthesis of lycopenes with high 6Z contents and the residues are used in the synthesis of lycopenes with high All-E contents.
本发明涉及制备
番茄红素的方法,特别是从C15-Wittig盐混合物中制备具有高全E含量或高6Z含量的
番茄红素。C15-Wittig盐混合物被纯化,并从中提取6Z-C15-Wittig盐。提取的6Z-C15-Wittig盐用于合成具有高6Z含量的
番茄红素,残留物用于合成具有高全E含量的
番茄红素。