Fatty Acid Composition of Lipids in Naked Oat Grain of Domestic Varieties

Quantification for non-targeted LC/MS screening without standard substances

“…The lowest prediction error was observed for wheat and rice, 4.8 times, and highest for oat, 6.3 times (Table S15). This is expected, as oat samples possess a high content of polar lipids and free fatty acids 41 which possess high surface affinity and are, therefore, expected to cause ionization suppression 42 . Also, the mean prediction error for solvent (average 4.6 times) and all studied cereals (5.5 times) was comparable.…”

Nutritional Value of Wheat, Triticale, Barley and Oat Grains

“…Most oat fatty acids are unsaturated. Fatty acids dominating in the lipid composition of naked oat grain include palmitic (15-18%), oleic (34-37%), and linoleic (36-39%) acids [Krasilnikov et al 2018]. According to the content of oleic and linoleic acid and their ratio (1 : 1), lipids of naked oat belong to the oleic-linoleic group of vegetable oils.…”

Standard substances free quantification makes LC/ESI/MS non-targeted screening of pesticides in cereals comparable between labs

“…In comparison to other cereals, oat is a rich source of polar lipids and free fatty acids. It has been discussed that phospholipids and free fatty acids will cause matrix effects in ESI (Krasilnikov, Batalova, Popov, & Sergeyeva, 2018;Pucci, Di, Alfieri, Bonelli, & Monteagudo, 2009), which can explain the severe matrix effect found in oat. The matrix effect may vary with analyte concentration (Furey, Moriarty, Bane, Kinsella, & Lehane, 2013;Kruve, Auling, Herodes, & Leito, 2011).…”