New Materials from the Integral Milk Kefir Grain Biomass and the Purified Kefiran: The Role of Glycerol Content on the Film’s Properties
Yuly A. Ramírez Tapias, Guillermo D. Rezzani, Juan F. Delgado, Mercedes A. Peltzer, Andrés G. Salvay · 2024
Read New Materials from the Integral Milk Kefir Grain Biomass and the Purified Kefiran: The Role of Glycerol Content on the Film’s Properties by Yuly A. Ramírez Tapias, Guillermo D. Rezzani, Juan F. Delgado, Mercedes A. Peltzer, Andrés G. Salvay (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11598159.txt.
Description
Yuly Ramírez Tapias and co-authors make new film materials in 2024 from milk kefir grains and from purified kefiran, a sugar polymer those grains produce. Microbial polymers are gaining ground as sources for materials that break down after use. Milk kefir grains are a by product of a fermented dairy food, holding kefiran plus proteins in a living community matrix.
Films from whole grains came out yellowish and held a mix of protein and kefiran, while purified kefiran films were clear and showed stronger inner bonds. A softener, glycerol, changed both films: it raised water uptake but lowered heat stability, stiffness, and strength. Kefiran films alone showed an odd pattern, first stretching less with a little softener, then more with added amounts. The authors trace that quirk to how glycerol meets kefiran when no protein is present.
Catalog record
| CREATOR | Yuly A. Ramírez Tapias, Guillermo D. Rezzani, Juan F. Delgado, Mercedes A. Peltzer, Andrés G. Salvay |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 58 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |