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| Aboonajmi, Mohammad; Ghorbani, Marzieh; Ghorbani Javid, Majid; Arabhosseini, Akbar. |
| The main objective of this study was to compare ultrasound assisted extraction with soxhlet extraction method as control in the extraction ascorbic acid of fennel seeds. Treatment conditions were performed using soxhlet method (240 min at 85 °C) and ultrasound treatment (20 kHz, 39, 64 and 96 W/cm2, 40 and 60 °C), for 15, 30 and 45 min. No significant differences were observed for total soluble solids among the samples studied. A similar trend was observed for both the amount of ascorbic acid extract and its ability to DPPH free radical scavenging. The greatest amount of ascorbic acid obtained in 15 minutes sonication (96 W/cm2 at 60 °C), with equivalent of 1.73 mg/ml fennel seeds extraction. There was a significant difference between soxhlet and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ultrasound-assisted extraction; Ascorbic acid; Soxhlet. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4328 |
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| Absalan, Ghafour; Kianmehr, Mohammad Hossein; Arabhosseini, Akbar. |
| Compost compression processes, such as pelleting, increase bulk density, improve storability, reduce transportation costs and make easier materials handling using existing equipment for handling and storage of grains. It is important to prevent quality deterioration of pellets in long time storage. Therefore, it is necessary to reduce the moisture content of the pellets to less than or less. In this research the drying kinetics of compost pellets were studied at air temperatures of 50, 60 and 70 , air velocities of 0.5, 1 and 1.5 , particle sizes of 1.18 and 2 mm and pellet diameters of 6 and 8 mm. The maximum effective moisture diffusivity (1.78× ) was obtained at air velocity of , air temperature of 70 , particle size of 1.18 mm and pellet diameter of 8... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drying kinetics; Effective moisture diffusivity; Mathematical modeling; Pellet. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3656 |
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| Saeidirad, Mohammad Hossein; Esaghzaeh, Mostafa; Arabhosseini, Akbar; Zarifneshat, Saeed. |
| The threshing section on combine harvester or thresher machine affects grain and stalk separation performance. The present study is conducted with view to optimize important operational and crop parameters influencing the threshing of sorghum. In this research, the effects of cylinder speed with four levels (13, 17, 21 and 25 m s-1), concave clearance (5, 10 and 15 mm) and feed rate (420, 500 and 590 kg h-1) were investigated on un-separated seed percentage, damaged seed percentage and germination. Result of ANOVA showed that cylinder speed had a significant effect on unseparated seed percentage and damaged seed percentage (P |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sorghum; Threshing quality; Cylinder thresher. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2319 |
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| Absalan, Ghafour; Kianmehr, Mohammad Hossein; Arabhosseini, Akbar; Kouravand, Shahriar. |
| Compression is important to prevent a deterioration in quality pellets for long term storage and the moisture content of the pellets must be reduced to or less. In this research the quality of pellet of compost was studied at air temperatures of 50, 60 and 70, air velocities of 0.5, 1, and 1.5 m/s, particle sizes of 16(1.18mm) and 10(2mm) and pellet diameters of 6 and 8 mm. The Taguchi quality engineering method was used to investigate the effects of parameters on compressive strength of pellet. An orthogonal array, signal-to-noise (S/N) ratio analysis of variance (ANOVA) were employed to analyze the effect of these compressive strength parameters. Thus, the optimal performance for the compressive strength of pellet was obtained at first level of factor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Compost; CS of pellet; Optimization; Taguchi. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3175 |
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