The objective of the current research was to investigate the in vitro gastrointestinal digestion and storage properties of probiotic bacteria encapsulated in microparticles containing sodium alginate (AG) and sodium caseinate (NaCas) or soy protein isolate (SPI) through spray drying technology. A probiotic isolate Lactobacillus zeae LB1 was spray dried in AG solution combined with either SPI or NaCas at different ratios. High survival rate (>80%) was obtained for all the encapsulation formula tested. Combination of SPI or NaCas with AG showed a positive effect on both the in vitro gastric resistance and storage stability of L. zeae LB1. Among the formulas tested, microparticles made from a blend of NaCas and AG showed the highest glass transition temperature (Tg), corresponding to the best survival of L. zeae LB1 during storage under the water activity range of 0.11–0.76. The presence of two Tgs in the NaCas-AG particle suggested that phase separation occurred, which proved to have a positive effect on the viability of encapsulated probiotic bacteria during storage and gastric transition. In conclusion, the current study demonstrated that AG combined with NaCas may provide best protection to probiotic bacterial cells during storage, whereas AG combined with SPI proved to have the best gastric resistance property.
Food Hydrocolloids – Elsevier
Published: May 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera