کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
226284 464532 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies on inactivation of Bacillus subtilis spores by high hydrostatic pressure and heat using design of experiments
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Studies on inactivation of Bacillus subtilis spores by high hydrostatic pressure and heat using design of experiments
چکیده انگلیسی

The results of fractional factorial experiments showed that the significant external factors affecting high-pressure processing (HPP) inactivation were pressure, temperature and pressure holding time. Based on these results, response surface methodology (RSM) was employed in the present work and a quadratic equation for HPP inactivation was built. By analyzing the response surface plots and their corresponding contour plots as well as solving the quadratic equation, the experimental values were shown to be significantly in good agreement with predicted values since the adjusted determination coefficient (RAdj2) was 0.9384. The optimum process parameters for six log-cycles reduction of Bacillus subtilis spores were obtained as: temperature, 87 °C; pressure, 576.0 MPa and pressure holding time, 13 min. The adequacy of the model equation for predicting the optimum response values was verified effectively by the validation data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 77, Issue 3, December 2006, Pages 672–679
نویسندگان
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