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Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu.

Cited by (1)

Abstract
Hypothesis and Aim: Compositions of an edible material can influence its metabolic fate. Palm kernel oil (PKO) contains more saturated fat than unsaturated fat, indicating a propensity to elevate serum total cholesterol (TC) and low density lipoprotein-cholesterol (LDL-c). Its phytosterol and amino acid profiles may also have metabolic implications. The aim of the study was to examine PKO for the presence of phytosterols and its Amino Acid (AA) profile.
Methodology: Palm kernel oil was examined for the presence of phytosterols, AA compositions, AA groupings and Essential AA (EAA) scores, using palm oil (PO) as a reference.
Results: The PKO did not contain phytosterols and as such may not competitively inhibit uptake of dietary cholesterol. Its total AA content (g/100 g protein) was 6.87 ± 0.49 compared to PO’s 49.45 ± 1.36. The Total Non-EAA (TNEAA)/ Total EAA (TEAA, with His) ratios of PKO and PO were 1.04 ± 0.01 and 0.98 ± 0.00, respectively; suggesting that PKO contained more TNEAA than TEAA (with His) while the reverse was the case in PO. The PKO did not contain some EAAs like Ile, Val, His and Thr and as such its EAAs cannot support protein synthesis based on the all-or-none principle of EAAs in respect of protein synthesis, but would rather be used for energy, converted to carbohydrate or fat, and stored as such.
Conclusion: The palm kernel oil lacked phytosterols and some essential amino acids and these may contribute to its acclaimed atherogenicity.

Key words: Amino acid profile, palm kernel oil, phytosterols.


 
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How to Cite this Article
Pubmed Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. A J Physiol Biochem Pharmacol. 2014; 3(1): 32-36. doi:10.5455/jib.20140504020638


Web Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. http://www.ajpbp.com/?mno=42650 [Access: December 13, 2018]. doi:10.5455/jib.20140504020638


AMA (American Medical Association) Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. A J Physiol Biochem Pharmacol. 2014; 3(1): 32-36. doi:10.5455/jib.20140504020638



Vancouver/ICMJE Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. A J Physiol Biochem Pharmacol. (2014), [cited December 13, 2018]; 3(1): 32-36. doi:10.5455/jib.20140504020638



Harvard Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu (2014) Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. A J Physiol Biochem Pharmacol, 3 (1), 32-36. doi:10.5455/jib.20140504020638



Turabian Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. 2014. Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. American Journal of Physiology, Biochemistry and Pharmacology, 3 (1), 32-36. doi:10.5455/jib.20140504020638



Chicago Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. "Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications." American Journal of Physiology, Biochemistry and Pharmacology 3 (2014), 32-36. doi:10.5455/jib.20140504020638



MLA (The Modern Language Association) Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu. "Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications." American Journal of Physiology, Biochemistry and Pharmacology 3.1 (2014), 32-36. Print. doi:10.5455/jib.20140504020638



APA (American Psychological Association) Style

Chiedozie Onyejiaka Ibegbulem, Donatus Chuka Belonwu (2014) Phytosterol and amino acid profiles of palm kernel oil: possible metabolic implications. American Journal of Physiology, Biochemistry and Pharmacology, 3 (1), 32-36. doi:10.5455/jib.20140504020638





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