کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
225168 | 464479 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Modelling colour degradation of orange juice by ozone treatment using response surface methodology Modelling colour degradation of orange juice by ozone treatment using response surface methodology](/preview/png/225168.png)
Response surface methodology was used to investigate the main effects and interactions of ozonation on orange juice colour degradation. A Box–Behnken experimental design was employed with control variables of gas flow rate (0–0.25 L min−1), ozone concentration (1.2–4.8%w/w) and treatment time (2–10 min). Predicted models were found to be significant (p < 0.001) with regression coefficients of 0.97, 0.97, 0.99, 0.99, 0.99, 0.98 for L∗, a∗, b∗, chroma, TCD, hue, respectively. Predicted values of colour parameters obtained using model equations were in good agreement with the experimental values. Gas flow rate, ozone concentration and treatment time were found to be critical factors influencing colour degradation. This study showed that Box–Behnken design and response surface methodology could be employed to model colour degradation parameters of ozonated orange juice while minimising the number of experiments required.
Journal: Journal of Food Engineering - Volume 88, Issue 4, October 2008, Pages 553–560