کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6528904 | 1419838 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High power ultrasound combined with supercritical carbon dioxide for the drying and microbial inactivation of coriander
ترجمه فارسی عنوان
سونوگرافی با قدرت بالا همراه با دی اکسید کربن فوق بحران برای خشک کردن و غیر فعال کردن میکروبی گشنیز
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کلمات کلیدی
خشک کردن فوق بحرانی، دی اکسید کربن، اولتراسوند قدرت بالا، خنثی سازی میکروارگانیسم، گشنیز،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
چکیده انگلیسی
This work explores the use of supercritical carbon dioxide (scCO2) drying in combination with High Power Ultrasound (HPU) to enhance both the dehydration efficiency and the microbial inactivation on coriander leaves. ScCO2 drying process alone was compared with a combined drying process (HPUâ¯+â¯scCO2) at different powers (10, 40 and 80â¯W), different drying times (up to 90â¯min) and two process temperatures (40 and 50â¯Â°C). At the most effective condition tested (40â¯W; 10â¯MPa; 40â¯Â°C), mesophilic bacteria were reduced up to 4 Log, mesophilic spores up to 1 Log, while yeast and molds were never detected (<2 logâ¯CFU/g). 40â¯W was identified as the threshold HPU value to achieve a beneficial effect on mesophilic bacterial spores reduction. Besides, the use of HPU enhanced the water loss and lowered the water activity of the samples, compared to the ones processed with scCO2 alone. The appearance and color of the dried samples did not show significant differences after the two processes. Overall, HPUâ¯+â¯scCO2 process resulted a promising technology to enhance both the dehydration and microbial inactivation efficiency compared to scCO2 drying alone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of CO2 Utilization - Volume 24, March 2018, Pages 516-521
Journal: Journal of CO2 Utilization - Volume 24, March 2018, Pages 516-521
نویسندگان
Filippo Michelino, Alessandro Zambon, Matteo Tobia Vizzotto, Stefano Cozzi, Sara Spilimbergo,