Decomposition products of β‐carotene formed during a simulated commercial deodorization of palm oil were separated from unsaponifiable portion into six fractions by liquid chromatography. Fraction two containing slightly polar substances was further separated using thin‐layer chromatography and high performance liquid chromatography. In this fraction, β‐13‐apo‐carotenone, β‐15‐apo‐caro‐tenal, and β‐14′‐apo‐carotenal were identified by infrared spectrometry and mass spectroscopy.
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Ouyang et al. (1980) studied this question.
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