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Different stress tolerance of spray and freeze dried Lactobacillus casei Shirota microcapsules with different encapsulating agents    
Yazarlar
Prof. Dr. Osman GÜL
Ondokuz Mayıs Üniversitesi, Türkiye
İlyas Atalar
Bolu Abant İzzet Baysal Üniversitesi, Türkiye
Özet
In this study, the effects of encapsulation with maltodextrin and reconstituted skim milk (RSM) and their binary and ternary blends with gum arabic (GA) by spray and freeze drying methods on viability of probiotic Lactobacillus casei Shirota under different stress conditions were evaluated. All microcapsules showed high survival ratios (7.91–9.37 log cfu/g) after microencapsulation. The viability of microencapsulated cells was significantly higher than free cells when exposed to stress conditions. Spray dried microcapsules exposed to low pH showed small decrease in the viability of cells compared to freeze dried microcapsules, but freeze drying microcapsules showed higher protective effect at 85 and 90 °C. After exposure to 3% bile salt, almost 2.5 log decreases in the encapsulated cell counts were determined for both methods. The results indicated that using RSM:GA mixture as an encapsulating agent showed the higher cell protection against high temperature, acidic pH and bile salts.
Anahtar Kelimeler
Freeze drying | Microencapsulation | Probiotic | Spray drying | Stress conditions
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Food Science and Biotechnology
Dergi ISSN 1226-7708
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 06-2019
Cilt No 28
Sayı 3
Sayfalar 807 / 816
Doi Numarası 10.1007/s10068-018-0507-x
Makale Linki http://link.springer.com/10.1007/s10068-018-0507-x