NDLI: Compositional and Structural Studies of the Major and Minor Components in Three Cameroonian Seed Oils by GC

Content Provider	Springer Nature Link
Author	Yeboah, Samuel Owusu Mitei, Yulita Chebotip Ngila, Jane Catherine Wessjohann, Ludger Schmidt, Juergen
Copyright Year	2011
Abstract	The lipid components of three Cameroonian seed oils, ke tchock (Aframomum arundinaceum), njangsa (Ricinodendron heudelotii) and calabash nutmeg (Monodora myristica), have been investigated. Gas chromatography (GC)–mass spectrometry (MS) fatty acid (FA) analysis showed M. myristica seed oil to be dominated by linoleic (49.29%) and oleic (37.17%) acids; R. heudelotii was mainly linoleic (58.73%), followed by stearic (15.00%) and oleic (14.21%) acids; A. arundinaceum was predominantly oleic (65.76%) and palmitic (20.36%) acids. Electrospray ionization (ESI)-Fourier transform ion cyclotron resonance (FTICR)-MS analysis showed seven major triacylglycerol (TAG) classes for M. myristica, with C54:5, C54:4 and C54:6 dominating. R. heudelotii had eight major TAG classes with C54:8, C54:7 and C54:6 being most abundant. A. arundinaceum also had eight major TAG classes with C52:2, C54:3 and C50:2 dominating. $^{13}$C nuclear magnetic resonance (NMR) analysis of the TAGs showed that both sn-1,3 and sn-2 positions were predominantly occupied by linoleoyl and oleoyl chains. High-performance liquid chromatography (HPLC) fluorescence detector (FLD) analysis showed that M. myristica contained only α- and β-tocopherols (195.40 and 73.95 µg/g, respectively), R. heudelotii contained mainly γ-tocopherol (289.40 µg/g), and A. arundinaceum had mainly γ- and β-tocopherols (236.78 and 124.93 µg/g, respectively). GC–MS analysis of the unsaponifiable matter showed that β-sitosterol was the most abundant phytosterol in all three seed oils. The absolute amounts of 4-desmethylsterols were 196.15, 608.71 and 362.15 µg/g for M. myristica, R. heudelotii and A. arundinaceum seed oils, respectively. These compositional and structural studies provide justification for the use of all three seed oils in food products.
Starting Page	1539
Ending Page	1549
Page Count	11
File Format	PDF
ISSN	0003021X
Journal	Journal of the American Oil Chemists' Society
Volume Number	88
Issue Number	10
e-ISSN	15589331
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-05-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aframomum arundinaceum Ricinodendron heudelotii Monodora myristica Fatty acids Triacylglycerols GC–MS HPLC-FLD ESI-FTICR-MS Phytosterols Tocopherols Tocotrienols Biotechnology Agriculture Food Science Industrial Chemistry/Chemical Engineering Biomaterials
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Chemical Engineering

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