Evaluation of Two Fitting Methods Applied for Thin-Layer Drying of Cape Gooseberry Fruits

Abstract

Drying data of cape gooseberry was used to compare two fitting methods: namely 2-step and 1-step methods. Literature data was also used to confirm the results. To demonstrate the applicability of these methods, two primary models (Page, Two-term-exponential) were selected. Linear equation was used as secondary model. As well-known from the previous modelling studies on drying, 2-step method required at least two regressions: One is primary model and one is secondary (if you have only one environmental condition such as temperature). On the other hand, one regression was enough for 1-step method. Although previous studies on kinetic modelling of drying of foodswere based on 2-step method, this study indicated that 1-step method may also be a good alternative with some advantages such as drawing an informative figure and reducing time of calculations.

Improvements in drying characteristics and quality parameters of tomato by carbonic maceration pretreatment

“…The moisture ratio (MR) of samples was calculated using the following equation: where MR is the moisture ratio; M t is the moisture content of the material at (any time kg water/kg dry solid); M i is the initial moisture content of the material before drying (any time kg water/kg dry solid); and M e is the equilibrium moisture content of tomato sample (any time kg water/kg dry solid). The equilibrium moisture content ( M e ) was assumed to be zero for drying since M e is relatively small compared to M t and M i and accepted to be negligible (Doymaz, ; Karacabey, ).…”

“…and M e is the equilibrium moisture content of tomato sample (any time kg water/kg dry solid). The equilibrium moisture content (M e ) was assumed to be zero for drying since M e is relatively small compared to M t and M i and accepted to be negligible (Doymaz, 2004;Karacabey, 2016).…”

Microwave assisted drying and extraction technique; kinetic modelling, energy consumption and influence on antioxidant compounds of fenugreek leaves

“…where, M t , M o , and M e represents moisture levels in leaves at time interval of t, initial and equilibrium, respectively. This equation for moisture ratio was further modified to M t /M o by some researchers for ease in calculations as described in the literature (Al-Harahsheh et al, 2009;Doymaz, 2005;Karacabey, 2016). Besides, the most important aspect of drying process is mathematical modelling that may help to design drying equipment with optimum drying of desired product.…”

Mathematical and Experimental Analysis of Solar Tunnel Dryer for Drying Beef as a Biological Product

“…ANOVA also showed that the lack of fit was not significant for all response surface models, at 95% confidence level. This paper presents an evaluation of two fitting methods applied for thin layer drying of Capegooseberry (Erkan, 2016).…”

“…ANOVA also showed that the lack of fit was not significant for all response surface models, at 95% confidence level. This paper presents an evaluation of two fitting methods applied for thin layer drying of Capegooseberry (Erkan, 2016).Many studies have been reported on solar drying of various products (Fernando et al 2015, Xiaroran et al 2015.Out of the literature survey conducted, it is observed that tunnel dryers were not employed so far the studies on drying beef. Response surface methodology is also powerful to analyze the performance characteristics of the system.…”