img
Effect of different encapsulating agent combinations on viability of iLactobacillus casei/i Shirota during storage, in simulated gastrointestinal conditions and dairy dessert     
Yazarlar
Prof. Dr. Osman GÜL
Ondokuz Mayıs Üniversitesi, Türkiye
İlyas Atalar
Bolu Abant İzzet Baysal Üniversitesi, Türkiye
Latife Betül Gül
Özet
In this study, the effects of various matrices consisting of maltodextrin and reconstitute skim milk and their binary and ternary mixtures with gum Arabic in the microencapsulation of Lactobacillus casei Shirota by freeze-drying technique were assessed. Microcapsules produced with reconstitute skim milk showed high viability (>99%) after freeze drying. While the free cells were completely inactivated after exposure to simulated gastrointestinal conditions, the survival rates of microencapsulated L. casei Shirota were found high for all microcapsules except for maltodextrin and maltodextrin:gum Arabic formulas. The viability of microencapsulated L. casei Shirota during storage at refrigerate and room temperatures decreased between 0.39 and 2.43 log cycles and microcapsules produced with reconstitute skim milk:gum Arabic was found more durable at the both storage conditions. Reduction in the number of free cells was higher than encapsulated L. casei Shirota numbers during production of dessert, however the viability of encapsulated L. casei Shirota was found stable for 14 days of storage and consequently desserts containing encapsulated L. casei Shirota (except maltodextrin) showed stable pH values. This study revealed that combination of reconstitute skim milk:gum Arabic was an effective wall matrix for microencapsulation of L. casei Shirota by freeze drying and also very resistant against gastrointestinal fluids and storage conditions in view of protection of L. casei Shirota.
Anahtar Kelimeler
encapsulating agents | Freeze drying | Lactobacillus casei Shirota | microencapsulation | storage stability
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Food Science and Technology International
Dergi ISSN 1082-0132
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 05-2019
Cilt No 25
Sayı 7
Sayfalar 608 / 617
Doi Numarası 10.1177/1082013219853462
Makale Linki http://journals.sagepub.com/doi/10.1177/1082013219853462