2024-03-28T17:12:46Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1674882022-12-20T16:50:59Zcom_10261_131com_10261_2col_10261_384
Unpurified Gelidium-extracted carbohydrate-rich fractions improve probiotic protection during storage
Alehosseini, Ali
Gómez del Pulgar, Eva M.
Gómez-Mascaraque, Laura G.
Martínez Sanz, Marta
Fabra, María José
Sanz Herranz, Yolanda
Sarabi-Jamab, Mahboobe
Ghorani, Behrouz
López-Rubio, Amparo
Ministerio de Economía y Competitividad (España)
European Commission
Internal gelation
Encapsulation
Probiotics
Agarose
Whey protein concentrate
The objective of this work was to investigate whether the use of unpurified agar-based fractions extracted from the seaweed Gelidium as microencapsulation matrices has an impact on probiotic protection during storage. Therefore, unpurified and pure agar and agarose-based microcapsules were produced through emulsification/internal gelation for the protection of Bifidobacterium pseudocatenulatum CECT 7765. Initially, agarose-based formulations with other biopolymers were evaluated, given the excellent oxygen barrier properties of this polysaccharide. The optimal combination in terms of probiotic protection was selected for further experiments and this agarose-based formulation was compared with microcapsules produced using both pure and unpurified agar-based fractions. The presence of other compounds (mainly proteins and polyphenols) in the unpurified agar fractions significantly improved the viability of these sensitive probiotic bacteria both at ambient and refrigerated storage conditions. Furthermore, the presence of impurities allowed the increase of solids content in the formulation giving raise to stronger gel particles, which could contribute to limited oxygen diffusion, thus, partly explaining the improved protection. Therefore, this work demonstrates the potential of more cost-effective less purified carbohydrate-based fractions for probiotic protection.
This work was financially supported by the “Agencia Estatal de Investigación” and co-funded by the European Union's Horizon 2020 research and innovation programme (ERA-Net SUSFOOD2) and the European Union's Seventh Framework Program under the grant agreement no 613979 (MyNewGut). Marta Martinez-Sanz, Maria José Fabra and Laura G. Gómez-Mascaraque are recipients of a Juan de la Cierva (IJCI-2015-23389), Ramon y Cajal (RYC-2014-158) and predoctoral (BES-2013-065883) contracts, respectively, from the Spanish Ministry of Economy, Industry and Competitiveness.
Peer reviewed
2018-07-09T12:15:22Z
2018-07-09T12:15:22Z
2018-06-20
artículo
http://purl.org/coar/resource_type/c_6501
LWT-Food Science and Technology 96: 694-703 (2018)
0023-6438
http://hdl.handle.net/10261/167488
10.1016/j.lwt.2018.06.043
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
en
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/613979
Postprint
https://doi.org/10.1016/j.lwt.2018.06.043
Sí
open
Elsevier