Abstract
Effects of Spray-Drying, Freeze-Drying and Pasteurization on Microbiological Quality and IgG Level of Bovine Colostrum
Highlights
Colostrum, as a nutritious liquid, is secreted during 48 to 72 h after mammalian parturition and supplies immunoglobulins, growth factors, antimicrobial peptides, including lactoferrin, lactoperoxidase and a perfect com-To cite: Sotudeh Sh., Rabbani Khorasgani M., Etemadifar Z., Zarkesh-Esfahani S.H. (2018)
Thereby, the first objective of this study was to evaluate the effects of pasteurization (60 °C for 30 min and 55 °C for 60 min), spray-drying and freeze-drying on bacterial population of bovine colostrum includes Escherichia coli count, Total Coliform Count (TCC), and Standard Plate Count (SPC) during 1, 10, 20, and 30 days after each treatment
All four treatments resulted in significant (p
Summary
As a nutritious liquid, is secreted during 48 to 72 h after mammalian parturition and supplies immunoglobulins, growth factors, antimicrobial peptides, including lactoferrin, lactoperoxidase and a perfect com-To cite: Sotudeh Sh., Rabbani Khorasgani M., Etemadifar Z., Zarkesh-Esfahani S.H. (2018). Effects of spray-drying, freeze-drying and pasteurization on microbiological quality and IgG level of bovine colostrum. The main objective of this study was to evaluate the effects of pasteurization, spray-drying and freeze-drying methods on bacterial loads and Immunoglobulin G (IgG) level of bovine colostrums. The samples were treated by pasteurization (60 °C for 30 min and 55 °C for 60 min), spray-drying and freeze-drying methods. Results: all four treatments showed direct impact on reduction of SPC, TCC, and E. coli count in colostrum stored at 1, 10, 20, and 30 days, but the spray-drying and freeze-drying methods were significantly (p
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