Effect of the applied drying method on the physical properties of purple carrot pomace

• Autorzy: Janiszewska E. , Witrowa-Rajchert D. , Kidon M. , Czapski J.
• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to determine the effect of different drying methods on selected physical properties of pomace obtained from purple carrot cv. Deep Purple. Drying was performed using four methods: convective, microwave-convective, infrared-convective and freeze-drying. The freeze-dried material had the lowest apparent density (422 kg m-3), which was caused by slight shrinkage, and indicated high porosity. Apparent density was almost three times greater in dried materials produced using the other drying methods as compared to the freeze-dried variants. Freeze-dried pomace adsorbed vapour more quickly than the other dried variants, which was caused by its high porosity and relatively low degree of structural damage. Rehydration characteristicswere significantly affected by the dryingmethod. The highest mass increase and losses of soluble substance were recorded for the freeze-dried samples. Conversely, the traditional convective drying method resulted in the lowest mass increase and soluble substance leaching. A positive linear correlation was found between the loss of soluble dry substance components and the absorbance of liquid obtained during rehydration.

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2013
• Tom: 27
• Numer: 2
• Opis fizyczny: p.143-149,fig.,ref.

Twórcy

autor

Janiszewska E.

• Department of Food Engineering and Process Management, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland

autor

Witrowa-Rajchert D.

• Department of Food Engineering and Process Management, Warsaw University of Life Sciences, Nowoursynowska 159c, 02-776 Warsaw, Poland

autor

Kidon M.

• Institute of Food Technology of Plant Origin, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznan, Poland

autor

Czapski J.

• Institute of Food Technology of Plant Origin, Poznan University of Life Sciences, Wojska Polskiego 31, 60-624 Poznan, Poland

Bibliografia

• Aghbashlo M., Kianmehr M.H., Khani S., and Ghasemi M., 2009. Mathematical modelling of thin-layer drying of carrot. Int. Agrophy., 23, 313-317.
• Baysal T., Icier F., Ersus S., and Yildiz H., 2003. Effects of microwave and infrared drying on the quality of carrot and garlic. Eur. Food Res. Technol., 218, 68-73.
• Chou K. J. and Chua S.K., 2001. Newhybrid drying technologies for heat sensitive foodstuffs. Trends Food Sci. Technol., 12, 359-369.
• Hassan-Beygi S.R., Aghbashlo M.,Kianmehr M.H., and Massah J., 2009. Drying characteristics of walnut (Juglans regia L.) during convection drying. Int. Agrophys., 23, 129-135.
• Kidoń M., Czapski J., and Witrowa-Rajchert D., 2008. Purple carrot and its products as a source of bioactive compounds (in Polish). Bromat. Chem. Toksykol., 51(3), 771-776.
• Krokida M.K. and Marinos-Kouris D., 2003. Rehydration kinetics of dehydrated products. J. Food Eng., 57, 1-7.
• Krokida M.K. and Philippopoulos C., 2005. Rehydration of dehydrated foods. Drying Technol., 23, 799-830.
• Lewicki P.P. and Wiczkowska J., 2006. Rehydration of apple dried by different methods. Int J. Food Properties, 9(2), 217-226.
• Marabi A., Thieme U., Jacobson M., and Saguy I.S., 2006. Influence of drying method and rehydration time on sensory evaluation of rehydrated carrot particulates. J. Food Eng., 72, 211-217.
• Markowski M. and Zieliñska M., 2011. Kinetics of water absorption and soluble-solid loss of hot-air-dried carrots during rehydration. Int. J. Food Sci. Technol., 46, 1122-1128.
• Mazza G., 1983. Dehydration of carrots. effect of predrying treatments on moisture transport and product quality. J. Food Technol., 18, 113-123.
• Nowak D. and Lewicki P.P., 2004. Infrared drying of apple slices. Innovative Food Sci. Emerg. Technol., 5(3), 353-360.
• Perera C.O., 2005. Selected quality attributes of dried foods. Drying Technol., 23(4), 717-730.
• Prakash S., Jha S.A., andDatta N., 2004. Performance evaluation of blanched carrot dried by three different methods. J. Food Eng., 62, 305-313.
• Prothon F., Ahrné L., and Sjöholm I., 2003. Mechanisms and prevention of plant tissue collapse during dehydration. Critical review. Crit. Rev. Food Sci., 43(4), 447-479.
• Ratti C., 2001. Hot air and freeze-drying of high-value foods. Review. J. Food Eng., 49, 311-319.
• Stępień B., 2008. Rehydration of carrot dried using various methods. Acta Agrophysica, 156, 239-251.
• Sumnu G., Turabi E., and Oztop M., 2005. Drying of carrots in microwave and halogen lamp-microwave combination movens, LWT, 38, 549-553.
• Wang J. and Chao Y., 2002. Drying characteristics of irradiated apple slices, J. Food Eng., 52, 83-88.
• Witrowa-Rajchert D., Bawoł A., Czapski J., and Kidoń M., 2009. Studies on drying of purple carrot roots. Drying Technol., 27, 1325-1331.
• Witrowa-Rajchert D. and Lewicki P.P., 2006. Rehydation propretties of dried plant tissues. Int. J. Food Sci. Technol., 41(9), 1040-1046.
• Zhang M., Tang J., Mujumdar A.S., and Wang S., 2006. Trends in microwave-related drying of fruits and vegetables. Trends Food Sci. Technol., 17, 524-534.

Uwagi

PL

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