Effects of sonication and freezing on the color, mechanical and thermophysical properties of osmo-microwave-vacuum dried cranberries

Izabela Anna Staniszewska

Department of Systems Engineering, University of Warmia and Mazury
http://orcid.org/0000-0001-7868-3794

Szymon Staszyński



Magdalena Zielińska

Katedra Inżynierii Systemów, Uniwersytet Warmińsko-Mazurski
http://orcid.org/0000-0001-7127-4891


Abstrakt

The aim of this study was to determine the effects of sonication (S), convective freezing (F), convective freezing preceded by sonication (SF) as well as cryogenic freezing (N) on the osmo-microwave-vacuum drying kinetics, energy usage and properties of dried cranberries such as moisture content, moisture diffusion, water activity, density, porosity, thermal conductivity, thermal diffusivity, volumetric heat capacity, lightness, redness, yellowness, total differences in color, saturation and hue, hardness, cohesiveness, springiness and chewiness. Osmo-microwave-vacuum drying of cranberries took from 13.5 to 16.0 min. All initial treatments increased the moisture diffusivity and thus reduced the drying time. The most energy effective method was osmo-microwave-vacuum drying preceded by sonication (S) of fruits. Osmo-microwave-drying of cranberries subjected to convective freezing preceded by sonication (SF) resulted in the highest lightness (32.5 ± 0.5), redness (33.9 ± 0.7) and yellowness (11.3 ± 0.5) of fruits, as well as the lowest cohesion (the lowest resistant to stress associated with manufacturing, packaging, storage, and delivery). The lowest hardness, i.e. 12.3 ± 0.4 N and the highest cohesiveness and springiness, i.e. 0.38 ± 0.02 and 0.74 ± 0.03 of dried fruits, were noted for berries subjected to initial cryogenic freezing (N). Cryogenic freezing (N) combined with osmo-microwave-vacuum drying resulted in the largest color changes of fruits and the highest thermal conductivity. Sonicated and convectively frozen (SF) fruits were characterized by the highest thermal diffusivity. Sonication (S), convective freezing (F) and their combination (SF) significantly reduced the volumetric heat capacity of cranberry fruits.


Słowa kluczowe:

żurawina, odwadnianie osmotyczne, ultradźwięki, mrożenie, suszenie mikrofalowo-próżniowe

Instytucje finansujące

Narodowe Centrum Nauki, Uniwersytet Warmińsko-Mazurski w Olsztynie


BEAUDRY, C., RAGHAVAN, G.S.V., RENNIE, T.J. 2003. Microwave finish drying of osmotically dehydrated cranberries. Drying Technology, 21(9), 1797–1810.   Google Scholar

CORREA, J.L.G., DANTAS, V.A., DE MENDONCA K.S., JUSTUS A. 2016. Optimization of pulsed vacuum osmotic dehydration of sliced tomato. In: Delgado J., Barbosa de Lima A. (eds) Drying and Energy Technologies. Advanced Structured Materials, vol 63. Springer, Cham.   Google Scholar

CZAJKOWSKA, K., KOWALSKA, H., CICHOWSKA, J., WOJNOWSKI, M. 2016. Osmotic dehydration of apple in chokeberry juice concentrate. Postępy Techniki Przetwórstwa Spożywczego, 2, 5–11.   Google Scholar

FIGIEL, A. 2009. Drying kinetics and quality of vacuum-microwave dehydrated garlic cloves and slices. Journal of Food Engineering, 94, 98–104.   Google Scholar

GRABOWSKI, S., MARCOTTE, M., POIRIER, M., KUDRA, T. 2002. Drying characteristics of osmotically pretreated cranberries—energy and quality aspects. Drying Technology, 20(10), 1989–2004.   Google Scholar

NOWAK, I., KOWALSKA, S. 2007. Application of microwaves in chemistry. Analityka: Nauka i Praktyka, 4, 4–10.   Google Scholar

NOWAK, K.W., ZIELINSKA, M., WASZKIELIS, K.M. 2019. The effect of ultrasound and freezing/thawing treatment on the physical properties of blueberries. Food Science and Biotechnology, 28, 741–749.   Google Scholar

RAHMAN, S. 1995. Food Properties Handbook. CRC Press Inc, Boca Raton.   Google Scholar

SCHMIDT, E.L., KLOCKER, K., FLACKE, N., STEIMLE, F. 1998. Applying the transcritical CO2 process to a drying heat pump. International Journal of Refrigeration, 21(3), 202–211.   Google Scholar

SIUCINSKA, K., KONOPACKA, D., MIESZCZAKOWSKA-FRAC, M., POLUBOK, A. 2016a. The effects of ultrasound on quality and nutritional aspects of dried sour cherries during shelf-life. LWT - Food Science and Technology, 68, 168–173.   Google Scholar

SIUCINSKA, K., MIESZCZAKOWSKA-FRAC, M., POLUBOK, A., KONOPACKA, D. 2016b. Effects of ultrasound assistance on dehydration processes and bioactive component retention of osmo-dried sour cherries. Journal of Food Science, 81(7), C1654–C1661.   Google Scholar

STANISZEWSKA, I., DZADZ, L., XIAO, H.W., ZIELINSKA M. 2020. Evaluation of storage stability of dried cranberry powders based on the moisture sorption isotherms and glass transition temperature. Drying Technology, DOI: 10.1080/07373937.2020.1771362.   Google Scholar

STANISZEWSKA, I., STASZYNSKI, S., ZIELINSKA, M. 2019. Application of sonication and freezing as initial treatments before microwave-vacuum drying of cranberries. Technical Sciences, 22(2), 151–167.   Google Scholar

STOJANOVIC, J., SILVA, J.L. 2007. Influence of osmotic concentration, continuous high frequency ultrasound and dehydration on antioxidants, colour and chemical properties of rabbiteye blueberries. Food Chemistry, 101, 898–906.   Google Scholar

WRAY, D., RAMASWAMY, H.S. 2013. Microwave-osmotic dehydration of cranberries under continuous flow medium spray conditions. International Journal of Microwave Science and Technology, 2013, 1–11.   Google Scholar

WRAY, D., RAMASWAMY, H.S. 2015. Development of a microwave–vacuum-based dehydration technique for fresh and microwave–osmotic (MWODS) pretreated whole cranberries (Vaccinium macrocarpon). Drying Technology, 33(7), 796–807.   Google Scholar

YOGENDRARAJAH, P., SAMAPUNDO, S., DEVLIEGHERE, F., SAEGER, S., MEULENAER, B. 2015. Moisture sorption isotherms and thermodynamic properties of whole black peppercorns (Piper nigrum L.). LWT - Food Science and Technology, 64(1), 177–188.   Google Scholar

ZHENG, Y., WANG, C.Y., WANG, S.Y., ZHENG, W. 2003. Effect of high-oxygen atmospheres on blueberry phenolics, anthocyanins, and antioxidant capacity. Journal of Agricultural and Food Chemistry, 51, 7162–7169.   Google Scholar

ZIELINSKA, M., MARKOWSKI, M. 2012. Color Characteristics of Carrots: Effect of Drying and Rehydration. International Journal of Food Properties, 15, 450–466.   Google Scholar

ZIELINSKA, M., MARKOWSKI, M. 2018. Effect of microwave-vacuum, ultrasonication, and freezing on mass transfer kinetics and diffusivity during osmotic dehydration of cranberries. Drying Technology, 36(10), 1158–1169.   Google Scholar

ZIELINSKA, M., MARKOWSKI, M., ZIELINSKA, D. 2019. The effect of freezing on the hot air and microwave vacuum drying kinetics and texture of whole cranberries. Drying Technology, 37(13), 1714–1730.   Google Scholar

ZIELINSKA, M., ROPELEWSKA, E., MARKOWSKI, M. 2017. Thermophysical properties of raw, hot-air and microwave-vacuum dried cranberry fruits (Vaccinium macrocarpon). LWT - Food Science and Technology, 85, 204–211.   Google Scholar

ZIELINSKA, M., ROPOLEWSKA, E., ZAPOTOCZNY, P. 2018a. Effects of freezing and hot air drying on the physical, morphological and thermal properties of cranberries (Vaccinium macrocarpon). Food and Bioproducts Processing, 110, 40–49.   Google Scholar

ZIELINSKA, M., SADOWSKI, P., BLASZCZAK, W. 2015. Freezing/thawing and microwave assisted drying of blueberries (Vaccinium corymbosum L.). LWT - Food Science and Technology, 62(1,2), 555–563.   Google Scholar

ZIELINSKA, M., ZIELINSKA, D. 2019. Effects of freezing, convective and microwave-vacuum drying on the content of bioactive compounds and color of cranberries. LWT - Food Science and Technology, 104, 202–209.   Google Scholar

ZIELINSKA, M., ZIELINSKA, D., MARKOWSKI, M. 2018b. The effect of microwave-vacuum pretreatment on the drying kinetics, color and the content of bioactive compounds in osmo-microwave-vacuum dried cranberries (Vaccinium macrocarpon). Food and Bioprocess Technology, 11, 585–602.   Google Scholar


Opublikowane
02-12-2020

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Staniszewska, I. A., Staszyński, S., & Zielińska, M. (2020). Effects of sonication and freezing on the color, mechanical and thermophysical properties of osmo-microwave-vacuum dried cranberries. Technical Sciences, 23(2), 157–174. https://doi.org/10.31648/ts.5689

Izabela Anna Staniszewska 
Department of Systems Engineering, University of Warmia and Mazury
http://orcid.org/0000-0001-7868-3794
Szymon Staszyński 

Magdalena Zielińska 
Katedra Inżynierii Systemów, Uniwersytet Warmińsko-Mazurski
http://orcid.org/0000-0001-7127-4891



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