Investigations on carotenoids in lichens. XII. Some species from the Pyrenean Peninsula

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Abstract
By means of column and thin-layer chromatography, the authors investigated the presence of various carotenoids in thalli of 12 species of lichens from the Pyrenean Peninsula. The following carotenoids were found: lycophyll, lycoxanthin, β-carotene, α-, β-cryptoxanthin, lutein, lutein epoxide, zeaxanthin, antheraxanthin, canthaxanthin, phoenicoxanthin, adonixanthin, α-doradexanthin, astaxanthin, diatoxanthin, neoxanthin, violaxanthin, mutatochrome, mutatoxanthin and rhodoxanthin. The total content of carotenoids ranged from 2.299 (Cetraria cucullata) to 39.402 mg•g-1 dry weight (Pseudoevernia furfuraceae).

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