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Ramachandra, C. T.
- Drying Characteristics of Byadagi Chilli (capsicum Annuum Linn.) Using Solar Tunnel Dryer
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Affiliations
1 Department of Food and Agricultural Process Engineering, Agricultural Engineering College and Research Institute (T.N.A.U.) CoimbatoreT.N., IN
2 Department of Agricultural Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur Karnataka, IN
1 Department of Food and Agricultural Process Engineering, Agricultural Engineering College and Research Institute (T.N.A.U.) CoimbatoreT.N., IN
2 Department of Agricultural Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur Karnataka, IN
Source
International Journal of Agricultural Engineering, Vol 6, No 1 (2013), Pagination: 111–115Abstract
Freshly harvested Byadagi chilli (Capsicum annuum Linn.) fruits were treated with dipsol, potassium nitrate and citric acid and dried in solar tunnel dryer (STD) and open yard sun drying (OYSD). A comparative study was conducted to evaluate two drying methods with respect to temperature and time combinations. It took 39 h to bring down the moisture content of chillies from 339.14% d.b. to 10.00% d.b. in STD as against 57 h under OYSD. The per cent time saved for drying chilli by using improved method of drying (STD) was found to be 31.57% in comparison with open yard sun drying. Drying took place in the falling rate period and the Newton model was found to be the best fit to describe the drying behavior of Byadagi chilli.Keywords
Byadagi Chilli, Drying Model, Moisture Content
- Effect of Spray Drying Conditions and Feed Composition on Sweet Orange Juice Powder
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Authors
Affiliations
1 Department of Food Technology, College of Rural Home Science, University of Agricultural Sciences, Dharwad (Karnataka), IN
2 Department of Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur (Karnataka), IN
1 Department of Food Technology, College of Rural Home Science, University of Agricultural Sciences, Dharwad (Karnataka), IN
2 Department of Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur (Karnataka), IN
Source
International Journal of Agricultural Engineering, Vol 10, No 1 (2017), Pagination: 191-198Abstract
The aim of this work was to study the influence of inlet air temperature and maltodextrin concentration on functional properties, microstructure and heat utilization efficiency of sweet orange juice powder by spray drying. The inlet air temperature of 130, 140 and 150°C and maltodextrin concentration of 6 per cent, 9 per cent and 12 per cent were chosen as independent variables to produce the spray dried sweet orange juice powder. The mean value of functional properties of spray dried sweet orange juice powder viz., flowability, cohesiveness, ascorbic acid and radical scavenging activity were 21.42-16.00, 1.19-1.25, 74.20-68.88 mg.100g-1 and 21.54-23.19 mg.g-1, respectively, which were significantly affected (p<0.05) by inlet air temperature and maltodextrin concentration. SEM analysis shown that surface was smooth with irregular shaped particles with complex link bridge. The heat utilization efficiency was done using MATLAB software. The maximum heat utilization efficiency (50.43%) of spray dryer was obtained at inlet air temperature of 130°C with 9 per cent maltodextrin concentration.Keywords
Spray Dryer, Sweet Orange Juice Powder, Maltodextrin Concentration, Inlet Air Temperature, SEM, MATLAB.References
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- Physico-Chemical and Thermal Properties of Different Biomass Material Selected for Thermal Gasification
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Authors
Affiliations
1 Department of Farm Machinery and Power Engineering, College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
2 Department of R.E.E., College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
3 Department of REE, College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
4 Department of Agricultural Engineering, University of Agricultural Sciences, Bengaluru (Karnatak), IN
1 Department of Farm Machinery and Power Engineering, College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
2 Department of R.E.E., College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
3 Department of REE, College of Agricultural Engineering (UAS), Raichur (Karnatak), IN
4 Department of Agricultural Engineering, University of Agricultural Sciences, Bengaluru (Karnatak), IN
Source
International Journal of Agricultural Engineering, Vol 11, No 2 (2018), Pagination: 276-281Abstract
Agricultural and forest biomass material were reported to be the potential feedstock for gasification by various researchers. The physical, chemical and thermal properties of biomass material play very important role in order to characterize the feedstock for energy conversion process. The physical properties (moisture content and bulk density), chemical properties (volatile matter content, ash content and total carbon content) and thermal properties (calorific value) of selected agricultural and forest biomass viz., pigeonpea stalk (Cajanus cajan), cotton stalk (Gossypium hirsutum) and vilaytee babool (Prosopis juliflora) for different length of sizes ranging from 25-50, 50-75 and 75-100 mm were determined using standard procedures. The moisture content of pigeonpea stalk, cotton stalk and vilaytee babool were found to be 3.28, 6.98 and 9.45 per cent, respectively. While the bulk density of these feed stock were reported to be 501, 465 and 556 kg m-3, respectively. The volatile matter content, ash content and total carbon content of pigeonpea stalk were 80.67, 1.39 and 17.94 per cent, respectively. While for cotton stalk these were 80.20, 1.43 and 18.37 per cent. Whereas, vilaytee babool these were 80.81, 1.83 and 17.36 per cent, respectively. The calorific value of 16.44, 16.05 and 17.49 MJ kg-1was observed for pigeonpea, cotton stalk and vilaytee babool, respectively. The results obtained from the study indicated that the selected agricultural and forest biomass material were found to be potential for thermal gasification.Keywords
Ash Content, Biomass Material, Bulk Density, Calorific Value, Total Carbon Content, Volatile Matter Content.References
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