Monthly Archives: September 2017

Dosage of pyrrolizidine alkaloids

Dosage of pyrrolizidine alkaloids

Because of their hepatotoxic and carcinogenic effects, authorities set limits for plants preparations that may contain pyrrolizidine alkaloids (PA) such as Borago officinalis L. According to the « Plants decree » (2014, June 24th) they should not contain more than 1 ppb of PA. However, numerous weeds like Echium vulgare L. or Senecio vulgaris L. synthesise this...
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