کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
223876 | 464412 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Evaluation of aging mechanisms of olive oil–lemon juice emulsion through digital image analysis Evaluation of aging mechanisms of olive oil–lemon juice emulsion through digital image analysis](/preview/png/223876.png)
The aging mechanisms of olive oil–lemon juice emulsions were investigated. The emulsions were prepared with xanthan gum where different concentrations of modified starch or maltodextrin were added. Emulsions stability was followed through analysis of the evolution of mean droplet size measured by image analysis during 203 days. All the samples presented phase separation at the end of the studied storage period. The stability results indicate that large droplets mean diameter were obtained in samples where maltodextrin or only xanthan gum was used. The study of the evolution of the droplet mean diameter with time show that the studied salad dressing ages preferentially through coalescence, although in certain cases molecular diffusion may occur. The incorporation of xanthan gum in salad dressing emulsions has a large influence in their rheological behavior.
Journal: Journal of Food Engineering - Volume 97, Issue 3, April 2010, Pages 335–340