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  1. Tan CH, Ariffin AA, Ghazali HM, Tan CP, Kuntom A, Choo AC
    J Food Sci Technol, 2017 Jun;54(7):1757-1764.
    PMID: 28720930 DOI: 10.1007/s13197-017-2569-9
    This article reports on the changes of oxidation indices and minor components of low free fatty acid (FFA) and freshly extracted crude palm oils after storage at ambient (28 ± 1 C) and 60 C for 77 days. The changes in peroxide value (PV), FFA, extinction coefficient at 233 and 269 nm (K233 and K269), bleachability index (DOBI), carotene and vitamin E contents were monitored. PV, FFA, K233 and K269 of both oil samples increased as storage progressed while the values of carotene and vitamin E contents decreased. At the end of storage period at 60 °C, the carotene content of low FFA crude palm oil was 4.24 ppm. The storage conditions used led to the loss of entire vitamin E fractions of both oil samples as well as a reduction in DOBI values except for freshly extracted crude palm oil stored at ambient temperature.
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