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| Content Provider | Springer Nature Link |
|---|---|
| Author | Yu, Liang Ramaswamy, Hosahalli S. Boye, Joyce |
| Copyright Year | 2009 |
| Abstract | The effects of feed moisture, screw speed, and barrel temperature on physical properties of extruded corn flour and soy protein isolate (SPI) blends were investigated in a co-rotating twin-screw extruder using a response surface methodology. Corn flour and SPI were mixed with a ratio of 4:1. The screw speed was set at five levels between 60 and 140 rpm, barrel temperature between 140 °C and 180 °C, and feed moisture between 18% and 38%. All physical properties of the extruded material evaluated—included expansion ratio, bulk density, breaking strength, water solubility index, rehydration ratio, and color—were significantly (p < 0.05) affected by the three process variables. Feed moisture was the most significant variable with quadratic effects on most of the physical properties. Response surface regression models were established to correlate the physical properties of the extruded product to the process variables. Understanding the effect of these variables on the product physical properties was deemed useful for the development of protein-rich extruded products. |
| Starting Page | 485 |
| Ending Page | 497 |
| Page Count | 13 |
| File Format | |
| ISSN | 19355130 |
| Journal | Food and Bioprocess Technology |
| Volume Number | 5 |
| Issue Number | 2 |
| e-ISSN | 19355149 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-11-26 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Extrusion Physical properties Response surface methodology Corn flour Soy protein isolate (SPI) Chemistry/Food Science Food Science Biotechnology Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Safety, Risk, Reliability and Quality Food Science Process Chemistry and Technology |
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