Lactobacillus plantarum survival during the osmotic dehydration and storage of probiotic cut apple
•Osmotic dehydration of cut apple was performed in sucrose or sorbitol solutions with re-suspended probiotic.•Lactobacillus plantarum got incorporated in apple cubes (107–108 cfu/g) by osmotic dehydration.•L. plantarum maintained the viability of 107 cfu/g during a 6day-storage at 4°C.•L. plantarum...
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Veröffentlicht in: | Journal of functional foods 2017-11, Vol.38, p.519-528 |
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Sprache: | eng |
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Zusammenfassung: | •Osmotic dehydration of cut apple was performed in sucrose or sorbitol solutions with re-suspended probiotic.•Lactobacillus plantarum got incorporated in apple cubes (107–108 cfu/g) by osmotic dehydration.•L. plantarum maintained the viability of 107 cfu/g during a 6day-storage at 4°C.•L. plantarum survived (107 cfu/g) in the quick simulation of digestion through gastro-intestinal tract.
The feasibility to incorporate Lactobacillus plantarum in apple cubes during the osmotic dehydration (OD) was investigated. The effects of 40 and 60°Brix osmotic solutions of sucrose or sorbitol on the viability of L. plantarum during the OD at 37°C and 1013 or 150mbar was evaluated. The storage at 4°C and a quick simulation (2h) of the digestion of probiotic apple cubes through the gastro-intestinal tract were also performed and the viability of the probiotic evaluated.
Lactobacillus plantarum got incorporated in the osmotically apple cubes (107–108 cfu/g) with preference for 40°Brix solutions and it maintained the viability of 107 cfu/g during a 6day-storage at 4°C. L. plantarum also survived (107 cfu/g) during the simulation of the digestion. Colour changes of the probiotic apple cubes occurred after OD and storage.
Therefore, osmotically dehydrated apple cubes incorporated with L. plantarum could be a new probiotic food. |
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ISSN: | 1756-4646 2214-9414 |
DOI: | 10.1016/j.jff.2017.09.021 |