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- Thomas, Midhun Ben; Vaidyanathan, Mahalakshmi; Radhakrishnan, Krishna; Raichur, Ashok M.
- Journal of food engineering 2014 v.136 pp. 1-8
- Saccharomyces cerevisiae var. cerevisiae; cell viability; chitosan; coatings; dextran; electrolytes; encapsulation; freeze drying; gastrointestinal system; gastrointestinal transit; juices; pH; permeability; probiotics; protective effect; sulfates; yeasts
- ... Saccharomyces boulardii was encapsulated by layer-by-layer technique (LbL) using oppositely charged polyelectrolytes, chitosan and dextran sulfate to protect from degradation during its gastrointestinal transit. The protective effect of the coating was evaluated by checking viability after subjecting the coated cells to lyophilisation and simulated gastrointestinal conditions. During lyophilizatio ...
- Cavallo, Jesica A.; Strumia, Miriam C.; Gomez, Cesar G.
- Journal of food engineering 2014 v.136 pp. 48-55
- acrylic acid; adsorption; chitosan; colorimetry; methylene blue; microbial growth; milk; packaging; polyacrylic acid; polymerization; polypropylenes; spectroscopy; spoilage
- ... A colorimetric sensor of milk spoilage was built from adsorption of methylene blue (MB) onto a modified polypropylene film (PP). First, acrylic acid (AA) was grafted onto PP surface by photograft polymerization reaction, and then either MB or chitosan chains (Cs) was attached to polyacrylic acid (PAA). Three syntheses were researched in order to fix MB to PP-g-PAA–Cs into different levels of PAA–C ...