Utilization of supercritical CO2 as a processing aid in setting functionality of starch-based materials
Modification of native starch enables fabrication of a broad spectrum of technologically valuable products for food and non‐food applications. Given the increased public concern about food safety and rigorous environmental regulations, a special attention is paid to non‐thermal and organic solvent‐f...
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Published in | Starch - Stärke Vol. 68; no. 9-10; pp. 821 - 833 |
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Main Authors | , , |
Format | Journal Article |
Language | English French German |
Published |
Weinheim
Blackwell Publishing Ltd
01.09.2016
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Modification of native starch enables fabrication of a broad spectrum of technologically valuable products for food and non‐food applications. Given the increased public concern about food safety and rigorous environmental regulations, a special attention is paid to non‐thermal and organic solvent‐free treatments of the starch‐based materials. Supercritical carbon dioxide (scCO2) is considered to be an attractive processing aid for starch modification due to its unique physicochemical properties such as low viscosity, absence of surface tension, high diffusivity, tuneable density and controllable solvent strength, low critical parameters (7.38 MPa, 31.1°C), availability, and environmental acceptability. This is the first review on different use of scCO2 as a processing aid in setting functionality of starch‐based materials including scCO2‐assisted gelatinization, fabrication of porous materials, impregnation, and chemical modification. In these processes, scCO2 is used as a plasticizer, blowing agent, solvent, medium or anti‐solvent to alter structural, and/or physicochemical properties of starch. The advantages of the scCO2‐assisted processes for starch modification over the corresponding conventional techniques were discussed in detail. |
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Bibliography: | ark:/67375/WNG-H2L3W7MW-C istex:52B768F8E64BA6C5F056A63CB778704740880449 ArticleID:STAR201500194 Ministry of Education, Science and Technological Development of Republic of Serbia - No. III 45017 |
ISSN: | 0038-9056 1521-379X |
DOI: | 10.1002/star.201500194 |