Title: Tocopherol and ascorbate have contrasting effects on the viability of microencapsulated Lactobacillus rhamnosus GG
Authors : Ying, Dan Yang
Sanguansri, Luz
Weerakkody, Rangika
Singh, Tanoj K.
Freimüller Leischtfeld, Susette
Gantenbein-Demarchi, Corinne
Augustin, Mary Ann
Published in : Journal of Agricultural and Food Chemistry
Volume(Issue) : 59
Issue : 19
Pages : 10556
Pages to: 10563
Publisher / Ed. Institution : American Chemical Society
Issue Date: 15-Aug-2011
License (according to publishing contract) : Licence according to publishing contract
Type of review: Not specified
Language : English
Subjects : Antioxidants; Probiotic; Microencapsulation; Lactobacillus rhamnosus GG
Subject (DDC) : 664: Food technology
Abstract: The antioxidants, sodium ascorbate and tocopherol, have contrasting effects on the viability of microencapsulated Lactobacillus rhamnosus GG (LGG) spray-dried prowders during storage (4 and 25°C; 32, 57 and 70% rel. humidity). The addition of tocopherol improved probiotic viability during storage, while the incorporation of Na-ascorbate alone or in combination with tocopherol had detrimental effects on probiotic survival. The beneficial effect of tocopherol is a consequence of its chemical antioxidative action. The reduced viability in Na-ascorbate containing microencapsule formulations is hypothesized to be due primarily to the production of acetic acids arising from chemical degradation reactions and the catabolism of ascorbate by LGG. This study highlights the importance or considering the detrimental consequences of degradative chemical reactions and the metabolic fate of additives on the viability of probiotics when designing probiotic encapsulant formulations.
Departement: Life Sciences und Facility Management
Organisational Unit: Institute of Food and Beverage Innovation (ILGI)
Publication type: Article in scientific Journal
DOI : 10.1021/jf202358m
ISSN: 1520-5118
URI: https://digitalcollection.zhaw.ch/handle/11475/6538
Appears in Collections:Publikationen Life Sciences und Facility Management

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