Abstract
Total hydrocarbon composition and content of whole peanuts from three Tunisian varieties of peanut (two cultivars: AraC (Virginia type), AraT (Valencia type) and a wild one: AraA) were investigated during maturation. The results show that 30 hydrocarbons were identified from the wild AraA species, while only 27 hydrocarbon were detected in the cultivar ones. The hydrocarbon fraction is essentially composed of squalene, n-alkenes especially nC14=, nC16=, nC18=, nC20= and nC22=, n-alkanes such as nC16, nC17, nC18, nC25, nC26 and nC27, and branched saturated hydrocarbon noted (HC1, HC2 and HC3). Among the hydrocarbon components, generally the wild variety AraA presents the highest content of phytochemical squalene during maturation, whereas a maximum was detected from cultivar AraT at 12 days after podding (815.45 mg/100 g of oil). At maturity, the maximum level is reached at about 346.74 mg/100 g of oil for AraA. During maturity, wild AraA is considered to be an excellent source of squalene like olive and pumpkin oil.
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Abbreviations
- AraA:
-
Arachis Arbi (wild)
- AraC:
-
Arachis Chounfakhi (cultivar)
- AraT:
-
Arachis Trabelsia (cultivar)
- BUHC:
-
Branched unsaturated hydrocarbon
- BSHC:
-
Branched saturated hydrocarbon
- DAP:
-
Days after podding
- GC-FID:
-
Gas chromatography- flame ionization detector
- GC/MS:
-
Gas chromatography-mass spectrometry
- HC:
-
Hydrocarbon
- HMW:
-
High molecular weight
- IS:
-
Immature stage
- LUHC:
-
Linear unsaturated hydrocarbon
- M:
-
Maturity
- MIS:
-
Middle stage
- SHC:
-
Saturated hydrocarbon or n-alkanes
- UHC:
-
Unsaturated hydrocarbon or n-alkenes
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Acknowledgments
The authors would like to thank Mr. M. El Chikh (Hammam el Ghezaz, Tunisia) for his technical assistance in conducting the culture of the peanuts.
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Cherif, A.O., Ben Messaouda, M., Pellerin, I. et al. Screening and Profiling of Hydrocarbon Components and Squalene in Developing Tunisian Cultivars and Wild Arachis hypogaea L. Species. J Am Oil Chem Soc 90, 675–686 (2013). https://doi.org/10.1007/s11746-013-2212-5
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DOI: https://doi.org/10.1007/s11746-013-2212-5