The study was aimed to ( I ) test the effect of polyethylene (LDPE) films coated by commercially available polyvinylchloride (PVC) lacquer with addition of nisin preparation Nisaplin? (5% w/w) and/or natamycin preparation DelvocidTM (10% w/w) on the growth of target bacteria, yeasts and moulds on the surface of soft cheese Bla?ácké zlato produced by company Madeta, a.s., Veselí nad Lu?nicí, and ( ii ) prepare and study the antimicrobial films with incorporated lactic acid or sodium lactate, suitable for packaging of raw chicken meat. The cheese in contact with nisin/natamycin treated film was stored at temperature 4°C and 23°C for 23 days, while chicken meat packaged in lactic acid/sodium lactate releasing films was stored only at 4°C for 7 days. Released antimicrobial agents caused retardation of tested microorganism growth by more than 1 logarithmic cycle on the surface of cheese Bla?ácké zlato and by more than 2 logarithmic cycles in raw chicken meat.
展开▼
