Effects of honeybush (Cyclopia subternata) extract on physico‐chemical, oxidative and sensory traits of typical Italian salami

Honeybush (Cyclopia subternata Vogel) is an indigenous South African shrub enjoyed as hot brewed tea. “Unfermented” honeybush is also a potential antioxidant bioactive extract for foodstuffs due to its polyphenol content. The effect of “unfermented” honeybush extract (Hob; 0.5%) was evaluated in typical Italian salami and compared with nitrate (Nit; 100 mg/kg) and a control (Ctl; without nitrate or honeybush). After 35 days of ripening, Hob had a higher (p <.01) water activity (0.928), compared with Ctl (0.923) and Nit (0.924). Final pH (5.35–5.24) was not affected by treatments. Lower lipid oxidation was observed in Hob and Nit treatments (p <.001) compared with Ctl. Internal color and odor intensity were similar among treatments. Salami with honeybush extract had less spontaneous outer surface mold growth whereas the Ctl showed intermediate growth (p <.05). Honeybush extract seems a promising natural ingredient with antioxidant action.