Effects of different drying methods on quality, bacterial viability and storage stability of probiotic enriched apple snacks

oleh: Li CUI, Li-ying NIU, Da-jing LI, Chun-quan LIU, Ying-ping LIU, Chun-ju LIU, Jiang-feng SONG

Format: Article
Diterbitkan: Elsevier 2018-01-01

Deskripsi

Effects of four different drying methods on the colour, texture, sensory quality, microstructure, bacterial viability and storage stability of probiotic-enriched apple snacks were assessed. The drying methods were air drying (AD), freeze drying (FD), freeze drying followed by microwave vacuum drying (FD+MVD) and air drying followed by explosion puffing drying (AD+EPD). Overall, FD+MVD can be used as a suitable drying method for the development of probiotic enriched apple snacks in consideration of colour, texture, sensory quality, bacterial viability and storage stability. Probiotic bacteria in FD+MVD-dried samples remained above 1×106 CFU g−1 for 120 days at 25°C. Interestingly, bacterial viability in FD+MVD-dried samples turned out to be significantly higher than FD-dried samples during storage for 120 days.