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Table 5 Quality parameters with safety implications tested in herbal substances submitted for marketing authorization (2009–2020)

From: Safety profile of herbal medicines submitted for marketing authorization in Tanzania: a cross-sectional retrospective study

Tests parameters

Number of products (%) (n = 69)

Mycotoxins

6 (9)

Pesticides/fumigants

8 (12)

Total microbial count

30 (43)

Total fungal count

15 (22)

Yeast only count

14 (20)

Mould counts

27 (39)

Pathogens (S. aureus, E. coli, Salmonella spp, P. aeruginosa)

26 (38)

Heavy metals (arsenic, mercury, lead and cadmium)

24 (35)

  1. n = total number of dossiers with herbal substances specifications