Variation of δ2H, δ18O & δ13C in crude palm oil from different regions in Malaysia: Potential of stable isotope signatures as a key traceability parameter

A total of 33 crude palm oil samples were randomly collected from different regions in Malaysia. Stable carbon isotopic composition ( δ13C) was determined using Flash 2000 elemental analyzer while hydrogen and oxygen isotopic compositions (δ2H and δ18O) were analyzed by Thermo Finnigan TC/EA, wherein both instruments were coupled to an isotope ratio mass spectrometer. The bulk δ2H, δ18O and δ13C of the samples were analyzed by Hierarchical Cluster Analysis (HCA), Principal Component Analysis (PCA) and Orthogonal Partial Least Square-Discriminant Analysis (OPLS-DA).

Source: Science and Justice - June 3, 2017 Category: Forensic Medicine Authors: Syahidah Akmal Muhammad, Eng-Keng Seow, AK Mohd Omar, Ainolsyakira Mohd Rodhi, Hasnuri Mat Hassan, Japareng Lalung, Sze-Chi Lee, Baharudin Ibrahim Source Type: research