[1] Tech Univ Munich, Biotechnol Nat Prod, Liesel Beckmann Str 1, D-85354 Freising Weihenstephan, Germany
[2] Tech Univ Munich, Bavarian Ctr Biomol Mass Spectrometry BayBioMS, Gregor Mendel Str 4, D-85354 Freising Weihenstephan, Germany
[3] Charite Univ Med Berlin, Allergy Ctr Charite, Berlin, Germany
[4] Humboldt Univ, Freie Univ Berlin, Berlin, Germany
[5] Berlin Inst Hlth, Berlin, Germany
[6] European Ctr Allergy Res Fdn, Robert Koch Pl 7, D-10115 Berlin, Germany
[7] Univ Appl Sci Osnabruck, Fac Agr Sci & Landscape Architecture, Fruit Sci, Oldenburger Landstr 24, D-49090 Osnabruck, Germany