Assessing probiotic potential and safety of endophyte Paenibacillus polymyxa ZJNR2 isolated from Ardisia japonica
The results indicated that the isolate exhibited favorable tolerance to both simulated gastrointestinal fluid and bile salts, and showed good antioxidant activity, as both its suspension and cell-free fermentation supernatant (CFS) scavenged >65% of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals.