The fatty acid profile in different wheat cultivars depending on the level of contamination with microscopic fungi.
Analyses were conducted on 30 winter wheat samples growing under controlled conditions and following inoculation with fungi Fusarium culmorum. In inoculated samples the mean concentration of 30 analysed fatty acids was significantly higher in relation to the control and amounted to 1,396 mg/kg vs. 1,046 mg/kg in the control kernels. Recorded concentrations for individual cultivars were significantly correlated with the concentration of fungal biomass. Higher concentration in the control was recorded only for the acid trans C18:2n-6. It was also found that the acid profiles are characteristic of individual cultivars. Statistical analysis showed that trans C18:2n-6, C18:1, C18:3n-3 and C18:3n-6 were the acids with the greatest discriminatory power in distinguishing inoculated samples from the control. Discriminatory analysis separated individual cultivars into quality classes of winter wheat cultivars depending on the presence of a specific fatty acid profile.
Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, 60-625 Poznan, Poland. Electronic address: kstuper@up.poznan.pl.
Kinga
K
Stuper-Szablewska
Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, 60-625 Poznan, Poland.
Maciej
M
Buśko
Department of Plant Pathology, Plant Breeding and Acclimatization Institute, Radzików, 05-870 Błonie, Poland.
Tomasz
T
Góral
Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, 60-625 Poznan, Poland.
Juliusz
J
Perkowski
D016002:Discriminant Analysis; D005227:Fatty Acids / Q000737:chemistry*; D005506:Food Contamination / Q000032:analysis; D005670:Fusarium / Q000254:growth & development / Q000378:metabolism*; D015394:Molecular Structure; D014255:Trichothecenes / Q000032:analysis / Q000378:metabolism; D014908:Triticum / Q000737:chemistry* / Q000145:classification / Q000382:microbiology*
D005227:Fatty Acids; D014255:Trichothecenes
Fatty acids; Mycotoxins; Wheat