Properties of glycerol-plasticized alginate films obtained by thermomechanical mixing (Record no. 38664)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02584nam a2200241Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625122438.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-4293 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Properties of glycerol-plasticized alginate films obtained by thermomechanical mixing |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Food hydrocolloids, 63, p.414-420, 2017 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Different plasticized alginates have been prepared by thermo-mechanical mixing for the first time. In this study, sodium alginate of high molar mass has been processed with glycerol as a nonvolatile plasticizer and water as a de-structuring agent. The obtained materials have been characterized and compared to similar plasticized polysaccharide systems based on starch and chitosan from previous studies. After equilibration, the final water content of glycerol-plasticized alginate stays quite high with values slightly above those of the equivalent starch- or chitosan-based plasticized materials under the same conditions. This can be explained by the more hydrophilic character of plasticized alginate. The effect of the glycerol content on the microstructure and properties of alginate-based materials was examined. X-ray diffraction results showed that neat alginate granules were largely destructured, and that glycerol increased the mobility of alginate chains while promoting the crystallization of the alginate chains with structural reorganization. The addition of glycerol resulted in a decrease in tensile strength and Young's modulus and an increase in elongation at break. However, elongation at break decreased when glycerol content exceeded 30 wt percent due to a major segregation phenomenon. Compared to thermoplastic starch with the same glycerol content obtained by thermo-mechanical mixing, plasticized alginate was found to be stiffer. The thermal decomposition temperature of alginate decreased with the incorporation of glycerol. Finally, transparent, soft, and easy-to-handle manually films were obtained using a multistep process that has been previously developed for starch and chitosan to obtain thermoplastic polysaccharides, with easy scale-up to obtain large-scale production. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ALGINATE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | GLYCEROL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | PLASTICIZATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | THERMO-MECHANICAL MIXING |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gao, C. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pollet, E. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Avérous, L. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1ZL2peyRyTJWpC2Y60oD-pJDpudXnXeqv/view?usp=drivesdk">https://drive.google.com/file/d/1ZL2peyRyTJWpC2Y60oD-pJDpudXnXeqv/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
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| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-4293 | 25.06.2025 | 25.06.2025 | Documentos solicitados |