International Journal of Agricultural Engineering

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Effects of Pre-Treatments and Drying Temperatures on the Quality of Dried Green Peas


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1 Department of Agricultural Process Engineering, Pad. Dr. D.Y. Patil College of Agricultural Engineering and Technology, Talsande, Kolhaour (M.S.), India
     

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The freshly harvested green peas procured from local market were cleaned and sorted. The average moisture content of the fresh green peas was found 70 to 75 per cent on wet basis. Three different samples of green peas with respect to pre-treatments viz., raw, blanched and blanched after pricking were taken for drying experiment. A laboratory model tray dryer was used for drying green peas with different levels of drying air temperatures (50, 60, 70°C). Drying time, moisture reduction was calculated later with the help of observed data during tray drying. The dried green pea samples were taken for quality evaluation by sensory method, rehydration of final product was also carried out. Survey results underlined the need of technological intervention at various stages of post-harvest processing of green peas in this region. Drying of blanched green peas after pricking at 50°C drying air temperature resulted in shorter drying time to produce best quality dried product as compared to raw and blanched green peas. The dried green peas with final moisture content 7.52 per cent on wet basis showed best rehydration characteristics to yield good quality rehydrated peas which could be preserved and used during off-season.

Keywords

Pre-Treatments, Drying Time, Drying Rate, Drying Air Temperature, Quality Evaluation.
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  • Anastasia Schepers, M.S., R. D. (2007). Study of green peas: protein, fibre and more. Environmental Nutrition January 2008, Page 08

  • Anastasia Schepers, M.S., R. D. (1990). AOAC, "Official method of analysis", (15th Ed.). Association of Official Analytical Washington D. C.

  • Chen, G. and Mujumdar, A. S. (2003). Osmotic dehydration pretreatment in drying of fruits and vegetables. Internat. J. Drying Technol., 6 : 1101-1114.

  • Diwaker, M.K. and Singh, N.K. (2010). Study on process technology for carrot cubes. B.Tech. Thesis, College of Agricultural Engineering, Pusa, BIHAR (INDIA).

  • Doymaz and Kocayigit (2011). Drying and rehydration behaviour of convection drying of green peas. Drying Technol., 29 : 1273-1282.

  • Hall, C.W. (1998). Drying and storage of agricultural crops. Tata Mc-Graw Hill Publishing Company Limited,NEW DELHI, INDIA.

  • Kingsly, A.R.P., Goyal, R.K., Manikantan, M.R. and Ilyas, S.M. (2007). Effects of pre-treatments and drying air temperature on drying behaviour of peach slice. Internat. J. Food Sci. Technol., 42 : 65-69.

  • Krokida, M.K. and Marinos-Kouris, D. (2003).Rehydration kinetics of dehydrated product. J. Food Engg., 57 : 1-7.

  • Mudgal, V.D. and Pandey, V.K. (2008).Effect of pre-treatment on dehydration of cauliflower. J. Food Sci. & Technol., 45(5): 426-429.

  • Patil, A.S. and Kubde, A.B. (2011). Tray drying of button mushroom (Agricusbisporus). Internat. J. Agril. Engg., 4(1): 24-27.

  • Pedreschi, F., Moyano, P., Santis, N. and Pedreschi, R. (2006). Physical properties of pretreated potato chips. J. Food Engg., 22 (5) : 45-49.

  • Ranganna, S. (1986). Hand book of analysis and quality controller fruit and vegetable products. Tata McGraw Hill Publication Co, NEW DELHI, INDIA.

  • Sahay, K.M. and Singh, K.K. (1994). Second revised and enlarged edition, Unit operation of Agricultural Processing.

  • Sahu, R., Verma, A., Patel, S. and Mishra, N. K. (2008).Study on osmo air drying of ginger slices. Internat. Res.J.Agric. Sci.

  • Saputra, D. (2001). Osmotic dehydration of pineapple. Internat. J. Drying Technol., 19(2) : 415-425.

  • Singh, Chhidda, Singh, Prem and Singh, Rajbir (1983). Modern techniques of rising fields crops. Oxford and IBH Publishing Co. Pvt. Ltd., NEW DELHI, INDIA.

  • Sudha, M.L. and Leelavathi, K. (2012). Effect of blends of dehydrated green pea flour and amaranth seed flour on the rheological, microstructure and pasta making quality. J. Food Sci. & Technol., 49(6) :713-720.

  • Waddle, S.G., Math, R.G., Chakkaravarthi, A. and Rao, D.E., (1992). Preservation of carrots (Daucuscarrota L.) by dehydration techniques A review. Indian Food Packer, NovDec, 36-43.

  • Wakchaure, G.C., Manikandan, K., Indra, M. and Mahantesh, S. (2010). Kinetics of thin layer drying of button mushroom.J. Agril. Engg., 47(4) : 41-46.

  • Waruthaithanasan, V. (2000). Traditional processed foods from fruits and vegetables and their processing technology in Thailand. (Department of product development, Faculty of Agro-industry, Kasetsart University, Bangkok, Thailand).


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  • Effects of Pre-Treatments and Drying Temperatures on the Quality of Dried Green Peas

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Authors

Y. V. Shete
Department of Agricultural Process Engineering, Pad. Dr. D.Y. Patil College of Agricultural Engineering and Technology, Talsande, Kolhaour (M.S.), India
M. M. More
Department of Agricultural Process Engineering, Pad. Dr. D.Y. Patil College of Agricultural Engineering and Technology, Talsande, Kolhaour (M.S.), India
S. S. Deshmukh
Department of Agricultural Process Engineering, Pad. Dr. D.Y. Patil College of Agricultural Engineering and Technology, Talsande, Kolhaour (M.S.), India
S. C. Karne
Department of Agricultural Process Engineering, Pad. Dr. D.Y. Patil College of Agricultural Engineering and Technology, Talsande, Kolhaour (M.S.), India

Abstract


The freshly harvested green peas procured from local market were cleaned and sorted. The average moisture content of the fresh green peas was found 70 to 75 per cent on wet basis. Three different samples of green peas with respect to pre-treatments viz., raw, blanched and blanched after pricking were taken for drying experiment. A laboratory model tray dryer was used for drying green peas with different levels of drying air temperatures (50, 60, 70°C). Drying time, moisture reduction was calculated later with the help of observed data during tray drying. The dried green pea samples were taken for quality evaluation by sensory method, rehydration of final product was also carried out. Survey results underlined the need of technological intervention at various stages of post-harvest processing of green peas in this region. Drying of blanched green peas after pricking at 50°C drying air temperature resulted in shorter drying time to produce best quality dried product as compared to raw and blanched green peas. The dried green peas with final moisture content 7.52 per cent on wet basis showed best rehydration characteristics to yield good quality rehydrated peas which could be preserved and used during off-season.

Keywords


Pre-Treatments, Drying Time, Drying Rate, Drying Air Temperature, Quality Evaluation.

References