Volume 13, Issue 54 (2015)
FSCT 2015, 13(54): 85-93 |
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Esmail Adabi M, Mosavi Seyedi S R, Kalantari D, Taghi Zadeh A. Evaluation of some qualitative properties of aloe vera gel by using recycling hot air dryer. FSCT 2015; 13 (54) :85-93
URL: http://fsct.modares.ac.ir/article-7-5763-en.html
URL: http://fsct.modares.ac.ir/article-7-5763-en.html
Abstract: (5672 Views)
Present study were investigated to evaluation the quality parameters in drying of Aloe vera in three temperatures (40, 50, 60 °C), air velocity (0.5, 1, 1/5 m/s) and hot air recycling (0, 50 and 75%) in order to reduce waste. The results showed that with increasing temperature, the samples showed less resistance to color change. The highest difference dried gel was at 70 °C so that the increasing air velocity and temperature was increased this index. Also, the maximum change pH and shrink were obtained to be 0.58 and 86.2%, at 60 °C and 1.5m/s respectively in case without recycling hot air, while its minimum value 0.3 and 70.6% were at 40 °C and 0.5m/s in case with 75% recycling hot air, respectively. The maximum value of rehydration water was obtained to be 301% at 40 °C and 0.5 m/s in case with 75% recycling hot air, while its minimum value 199% were at 60 °C and 1.5m/s in case without recycling hot air.
Received: 2016/04/9 | Accepted: 2016/07/11 | Published: 2016/07/22
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