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Institut für Lebensmittelchemie

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    Furan fatty acid amounts and their occurrence in triacylglycerols of white asparagus (Asparagus officinalis) from the German market
    (2023) Müller, Franziska; Bauer, Vanessa; Vetter, Walter
    Vegetables including asparagus contain a wide range of fatty acids, mainly stored in triacylglycerols. One class of interesting minor fatty acids is the family of furan fatty acids (FuFAs) because of their antioxidant properties. Since FuFAs have not been studied previously in asparagus (Asparagus officinalis L.), we developed and applied a simplified method for their analysis in 20 fresh and three preserved samples. Four FuFAs were detected with clear dominance of the dimethyl‐substituted FuFAs (D‐FuFAs) 11D5 and 9D5 as well as small amounts of the monomethyl‐substituted FuFAs (M‐FuFAs) 11M5 and 9M5. The total amounts of FuFAs in fresh white asparagus ranged from 1.4 to 4.6 mg/100 g dry weight (mean 3.0 mg/100 g dry weight). Subsequent LC‐Q‐Orbitrap‐HRMS measurements enabled the detection of 22 different FuFA‐containing TAGs. These were predominantly found together with one or two polyunsaturated fatty acid.