کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6404102 | 1330899 | 2014 | 8 صفحه PDF | دانلود رایگان |

- Functional properties of the starches changed with irradiation.
- Scanning Electron Microscopy showed surface cracking of starch granules.
- Relative crystallinity decreased while X-ray diffraction pattern remained unchanged.
In this study red and white potato starches were treated with γ-irradiation of 0, 5, 10 and 20 kGy. Physicochemical, pasting and morphological properties of the irradiated starches were investigated. Apparent amylose content, pH, moisture, swelling power and syneresis decreased; whereas carboxyl content, water absorption capacity and solubility increased with increasing irradiation dose. Pasting properties also decreased significantly (p â¤Â 0.05) upon increasing the irradiation dose. Observation under scanning electron microscope (SEM) showed surface cracking of the starch granules by γ-irradiation which increased with increase in irradiation dose. X-ray diffraction pattern remained the same upon irradiation but a decrease in relative crystallinity was observed with increasing irradiation dose.
Journal: LWT - Food Science and Technology - Volume 58, Issue 1, September 2014, Pages 239-246