Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i>
Oil-in-water (O/W) emulsions of okara oil-caseinate (1:2; 1:3 and 1:4 O/W ratios) were used to encapsulate Lactobacillus plantarum CIDCA 83114. Once encapsulated, microorganisms were freeze-dried or spray-dried, and observed by scanning electronic and confocal microscopies. A physical characterizati...
Autores principales: | , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
Publicado: |
2018
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/99315 https://ri.conicet.gov.ar/11336/87649 http://linkinghub.elsevier.com/retrieve/pii/S0963996917309079 |
Aporte de: |
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I19-R120-10915-99315 |
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record_format |
dspace |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Química Freeze-drying Lactic acid bacteria Oil-in-water emulsions Spray-drying Stability |
spellingShingle |
Química Freeze-drying Lactic acid bacteria Oil-in-water emulsions Spray-drying Stability Quintana, Gabriel Sebastián Gerbino, Oscar Esteban Gómez-Zavaglia, Andrea Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
topic_facet |
Química Freeze-drying Lactic acid bacteria Oil-in-water emulsions Spray-drying Stability |
description |
Oil-in-water (O/W) emulsions of okara oil-caseinate (1:2; 1:3 and 1:4 O/W ratios) were used to encapsulate Lactobacillus plantarum CIDCA 83114. Once encapsulated, microorganisms were freeze-dried or spray-dried, and observed by scanning electronic and confocal microscopies. A physical characterization of the dehydrated capsules was carried out by determining their moisture content, water activity, particle size, polydispersity index and zeta potential. Determining the induction times and peroxide values provided information about their susceptibility to oxidation. In turn, bacterial stability was analyzed by plate counting before and after freeze-drying and spray-drying, and during storage at 4 °C. Spray-dried emulsions had lower Z-sizes and polydispersity indexes, higher induction times and lower peroxide values than the freeze-dried ones, thus resulting better systems to protect L. plantarum CIDCA 83114. In addition, the culturability of spray-dried bacteria did not decrease neither after spray-drying nor up to 60 days of storage at 4 °C. The results showed that the better physical-chemical stability of spray-dried capsules determined the greater stability of microorganisms. This demonstrates the importance of defining adequate emulsions’ formulations for an efficient encapsulation of microorganisms, with promising applications in the development of novel functional foods. |
format |
Articulo Articulo |
author |
Quintana, Gabriel Sebastián Gerbino, Oscar Esteban Gómez-Zavaglia, Andrea |
author_facet |
Quintana, Gabriel Sebastián Gerbino, Oscar Esteban Gómez-Zavaglia, Andrea |
author_sort |
Quintana, Gabriel Sebastián |
title |
Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
title_short |
Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
title_full |
Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
title_fullStr |
Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
title_full_unstemmed |
Valorization of okara oil for the encapsulation of <i>Lactobacillus plantarum</i> |
title_sort |
valorization of okara oil for the encapsulation of <i>lactobacillus plantarum</i> |
publishDate |
2018 |
url |
http://sedici.unlp.edu.ar/handle/10915/99315 https://ri.conicet.gov.ar/11336/87649 http://linkinghub.elsevier.com/retrieve/pii/S0963996917309079 |
work_keys_str_mv |
AT quintanagabrielsebastian valorizationofokaraoilfortheencapsulationofilactobacillusplantarumi AT gerbinooscaresteban valorizationofokaraoilfortheencapsulationofilactobacillusplantarumi AT gomezzavagliaandrea valorizationofokaraoilfortheencapsulationofilactobacillusplantarumi |
bdutipo_str |
Repositorios |
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1764820493211271170 |