title: Chemical characteristics and volatile profile of genetically modified peanut cultivars.
abstract: Genetic engineering has been used to modify peanut cultivars for improving agronomic performance and pest resistance. Food products developed through genetic engineering have to be assessed for their safety before approval for human consumption. Preservation of desirable chemical, flavor and aroma attributes of the peanut cultivars during the genetic modifications is critical for acceptance of genetically modified peanuts (GMP) by the food industry. Hence, the main objective of this study is to examine chemical characteristics and volatile profile of GMP. The genetically modified peanut cultivars, 188, 540 and 654 were obtained from the USDA-ARS in Stillwater, Oklahoma. The peanut variety Okrun was examined as a control. The volatile analysis was performed using a gas chromatograph/mass spectrometer (GC/MS) equipped with an olfactory detector. The peanut samples were also analyzed for their moisture, ash, protein, sugar and oil compositions. Experimental results showed that the variations in nutritional composition of peanut lines examined in this study were within the values reported for existing cultivars. There were minor differences in volatile profile among the samples. The implication of this study is significant, since it shows that peanut cultivars with greater pest and fungal resistance were successfully developed without major changes in their chemical characteristics.
authors.affiliation: Department of Biosystems and Agricultural Engineering and Robert M. Kerr Food & Agricultural Products Center, Oklahoma State University, FAPC Room 103, Stillwater, OK 74078, USA.
authors.forename: Ee Chin
authors.initials: EC
authors.lastname: Ng
authors.forename: Nurhan T
authors.initials: NT
authors.lastname: Dunford
authors.forename: Kelly
authors.initials: K
authors.lastname: Chenault
mesh_terms: D010367:Arachis / Q000235:genetics*; D001709:Biotechnology / Q000379:methods; D005504:Food Analysis; D030841:Food, Genetically Modified; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D005818:Genetic Engineering / Q000379:methods*; D010938:Plant Oils / Q000737:chemistry; D030821:Plants, Genetically Modified / Q000235:genetics*; D012997:Solvents / Q000737:chemistry; D013395:Sucrose / Q000032:analysis; D013696:Temperature; D013997:Time Factors
chemical_list: D010938:Plant Oils; D012997:Solvents; D013395:Sucrose