ÜZÜM, NAR VE KARA HAVUÇ SULARININ FARKLI YÖNTEMLERLE KONSANTRASYONUNUN MATEMATİKSEL MODELLENMESİ
Open Access
- 6 October 2019
- journal article
- Published by Association of Food Technology, Turkey in GIDA / The Journal of Food
- Vol. 44 (6), 1092-1105
- https://doi.org/10.15237/gida.gd19080
Abstract
En tr In the present study, grape, pomegranate and black carrot juices were concentrated to 65 °Brix (Bx) from initial concentrations of 15.93, 13.91 and 11.23 °Bx respectively. The concentration kinetics of the juices were investigated using a rotary vacuum evaporator at 80°C, a microwave vacuum evaporator at 180 W and 300 W and osmotic distillation (OD) at room temperature. Experimental data were compared according to three statistical parameters: the correlation coefficient (R2), reduced chi-squared (χ2) value, and root mean-square error (RMSE), with values predicted by 13 models. Midilli model exhibited a better fit for the concentration kinetics (R2 ≥ 0.9990; χ2 ≤ 0.4588; RMSE ≤ 0.5350) than the other models, in general. This model was followed by the logarithmic, Page and two-term exponential models. The logarithmic model exhibited slightly better fitting for the thermal concentration method than Midilli model. The lowest energy consumption (1.334-1.540 kWh) was determined for the OD technique. Bu çalışmada başlangıç °Briks değerleri sırasıyla 15.93, 13.91 ve 11.23 olan üzüm, nar ve siyah havuç suları 65 °Briks değerine kadar konsantre edilmiştir. Meyve sularının konsantrasyon kinetik değerleri rotary vakum evoparatörde 80 ˚C’de, mikrodalga vakum evaporatörde 180 ve 300 W’da, ozmotik distilasyonda ise oda sıcaklığında çalışılarak belirlenmiştir. Elde edilen deneysel verilerin 13 farklı modele uygunluğu, korelasyon katsayısı (R2), azaltılmış ki-kare (χ2) değeri ve hata kareler ortalamasının karekökü (RMSE) olmak üzere 3 istatistiksel parametreye göre karşılaştırılmıştır. Konsantrasyon kinetiği açısından Midilli modeli (R2 ≥ 0.9990; χ2 ≤ 0.4588; RMSE ≤ 0.5350) diğer modellerden genel olarak daha uyumlu bulunmuş olup, bu modeli logaritmik, Page ve iki terimli eksponansiyel modelleri izlemiştir. Termal konsantrasyon yöntemi için logaritmik modelin Midilli modeline göre daha uyumlu olduğu görülmüştür. En düşük enerji tüketimi (1.334-1.540 kWh) ise ozmotik distilasyon tekniğinde belirlenmiştir.Keywords
Funding Information
- Akdeniz University (FBA-2017-2810)
This publication has 24 references indexed in Scilit:
- Concentration of apple juice using a vacuum microwave evaporator as a novel technique: Determination of quality characteristicsJournal of Food Process Engineering, 2017
- A comparative study of black mulberry juice concentrates by thermal evaporation and osmotic distillation as influenced by storageInnovative Food Science & Emerging Technologies, 2016
- Shell's influence on drying kinetics, color and volumetric shrinkage of Castanea sativa Mill. fruitsFood Research International, 2014
- Investigation on the effects of microwave and conventional heating methods on the phytochemicals of pomegranate (Punica granatum L.) and black mulberry juicesFood Research International, 2013
- MATHEMATICAL MODELS FOR VACUUM‐MICROWAVE CONCENTRATION BEHAVIOR OF PINEAPPLE JUICEJournal of Food Process Engineering, 2011
- Comparing the Effects of Microwave and Conventional Heating Methods on the Evaporation Rate and Quality Attributes of Pomegranate (Punica granatum L.) Juice ConcentrateFood and Bioprocess Technology, 2011
- Effects of heating method and conditions on the evaporation rate and quality attributes of black mulberry (Morus nigra) juice concentrateJournal of Food Science and Technology, 2011
- Integrated membrane process for blackcurrant (Ribes nigrum L.) juice concentrationDesalination, 2009
- Recent advances on membrane processes for the concentration of fruit juices: a reviewJournal of Food Engineering, 2004
- THIN LAYER SOLAR DRYING OF SOME VEGETABLESDrying Technology, 2001