کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6403467 | 1330894 | 2014 | 6 صفحه PDF | دانلود رایگان |
- Optical and mechanical changes are faster in deep-oil frying.
- The lower increase of a* during air-frying suggests a lower acrylamide generation.
- Texture of French fries exhibited a softening followed by the crust development.
The aim of this study was to analyse the influence of frying technique (air-frying and deep oil-frying) and type of pre-treatment (freezing and blanching) on the evolution of mechanical and optical properties of French fries. The results showed that the chromatic parameters, a* and b*, experimented an increase regardless of the frying method. The increase in a* was significantly higher in deep-oil frying as a result of Maillard's reactions. The texture analysis reported a first stage of initial softening related to starch gelatinization followed by a second stage where the maximum force increased due to the gradual formation of a crust, both stages being faster in deep-oil frying. Pre-frozen potatoes presented the highest value of maximum force parameter independent of the type of frying.
Journal: LWT - Food Science and Technology - Volume 57, Issue 2, July 2014, Pages 755-760