High resolution gas chromatographic analysis of reference samples of ‘espinheira santa’ ( Maytenus ilicifolia and M. aquifolium , Celastraceae) and of samples purchased in Brazilian herbal medicine stores showed that friedelan‐3‐ol and friedelin can be utilized as markers for the identification of ‘espinheira santa’ and for the recognition of authentic and adulterated samples in a fast and simple procedure.
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Vilegas et al. (1994) studied this question.