Authors: Huaning Yu Yuanrong Zheng Yunfei Li
Publish Date: 2013/06/21
Volume: 52, Issue: 2, Pages: 944-951
Abstract
Spray dried bovine colostrum SDBC powders were packaged in aluminiumlaminated polyethylene ALPE and polyethylene terephthalate PET pouches and then stored under different conditions 25 °C and 50 relative humidity RH 4 °C and 40–70 RH 50 °C and 20–50 RH The shelf life of SDBC powder was evaluated as 4255 and 865 days in ALPE and PET pouches under 25 °C and 50 RH respectively The storage stability of SDBC powder in terms of quality parameters including thiobarbituric acid TBA hydroxymethyl furfural HMF colour change moisture content and IgG concentration was studied in both packaging materials under different storage conditions Results showed that ALPE pouches were more suitable for packaging SDBC powder than PET pouches and storage condition of 4 °C and 40–70 RH was relative suitable for keeping quality of SDBC powder The glass transition concept was helpful for evaluating the chemical stability of SDBC powder during storage
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