title: [Lipoxygenases from pears, strawberries and gooseberries: partial purification and properties (author's transl)].
abstract: Membrane-bound lipoxygenases (EC 1.13.11.12) were partially purified from the fruits by centrifugation and gel chromatography. The enzymes have a pH-optimum at 6.0 (pear) resp. 6.5 (strawberry, gooseberry). Linoleic acid is oxidised to 9- and 13-hydroperoxides in a ratio of 3:7 (pear), 2:8 (strawberry) and 1:1 (gooseberry). The enzymes from gooseberries and from strawberries co-oxidise canthaxanthine with a higher specific activity than the lipoxygenases from pears and apples.
mesh_terms: D005638:Fruit; D008084:Lipoxygenase / Q000302:isolation & purification* / Q000378:metabolism; D010944:Plants / Q000201:enzymology*; D013045:Species Specificity
chemical_list: D008084:Lipoxygenase
vernacular_title: Lipoxygenasen aus Birnen, Erd- und Stachelbeeren: Partielle Reinigung und Eigenschaften.