کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5144455 | 1496865 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of ultrasonic pretreatments on quality, energy consumption and sterilization of barley grass in freeze drying
ترجمه فارسی عنوان
اثرات پیش پردازش اولتراسونیک بر کیفیت، مصرف انرژی و عقیم سازی چمن جو در خشک کردن انجماد
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کلمات کلیدی
علف جو سونوگرافی، استریلیزاسیون، تن الکترونیک، مصرف انرژی، دمای انتقال شیشه،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
چکیده انگلیسی
Barley grass is a plant resource for rehabilitation therapy. Its processing requires retaining nutrition well for rehabilitation cure of consumers. To meet the aim as well as low energy consumption and microbiological safety of products, ultrasonic treatments (UT) were applied to bathing materials at different power levels (10, 30, 45, 60Â W/L) for 10Â mins. After treatments, the bathed barley grass (100Â g) was freeze-dried under vacuum â0.09Â MPa with fixed power of 2Â W/g. Parameters of color, microbial colony, energy consumption, glass transition temperature, moisture content, water activity, taste substances, contents of flavonoid and chlorophyll were determined after drying. In contrast with no treatment case, UT (45Â W/L) decreased drying time by 14% and decreased energy consumption by 19%; UT (60Â W/L) decreased total microbial colonies by 33%. Also, UT (30Â W/L) yielded contents of flavonoid (9.2/kg) and chlorophyll (10.5Â g/kg) of dried sample; UT power (10Â W/L) yielded the highest Lâ(51.5) and the lowest aâ(â9.3) value. Simultaneously, UT leads to a higher glass transition temperature (Tg), lower water activity and produces less sourness and bitterness of dried products. Ultra-sonication is an alternative to improve quality, flavor and energy consumption of barley grass in freeze drying.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 40, Part A, January 2018, Pages 333-340
Journal: Ultrasonics Sonochemistry - Volume 40, Part A, January 2018, Pages 333-340
نویسندگان
Xiaohuang Cao, Min Zhang, Arun S. Mujumdar, Qifeng Zhong, Zhushang Wang,