Mathematical Modeling and Experimental Study on Thin-Layer Vacuum Drying of Ginger (Zingiber Officinale R.) Slices

Thorat, Indrajit D.; Mohapatra, Debabandya; Sutar, R. F.; Kapdi, S. S.; Jagtap, D. D.

doi:10.1007/s11947-010-0429-y

Cited by 51 publications

(41 citation statements)

References 15 publications

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“…A constant rate period was not observed in any of the experiments of this study, since the entire drying process for strawberry occurs in the range of the falling rate period. The results were generally in agreement with Doymaz (2004); Akpinar (2006); Vagenas and Marinos-Kouris (1991) and Thorat et al (2010). In the falling rate period the material surface is on larger saturated with water and drying rate is controlled by diffusion of moisture from the interior of sold to the surface (El-Beltagy et al, 2007).…”

Section: Retardation Of Corn Oil Auto Oxidationsupporting

confidence: 85%

“…In all cases, the values of R 2 for the models were greater than 0.8956, indicating a good fit. Suitability of the models were best on the of R 2 , x 2 and RMSE values (Thorat et al, 2010). Generally R 2 , x 2 and RMSE values were changed between 0.8965 and 0.9995, 0.0147 and 6.166, 0.0987 and 2.0275 respectively.…”

Section: Retardation Of Corn Oil Auto Oxidationmentioning

confidence: 92%

“…The effective diffusivity increased with increase of drying temperature. The internal mass transfer resistance controls the drying time due to the presence of falling rate drying period (Thorat et al, 2010). On the other hand, the variation of ln(D) with (1/T) is plotted in Fig.…”

Section: Ajabsmentioning

confidence: 99%

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MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

Al-Hilphy¹

2013

American Journal of Agricultural and Biological Sciences

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The halogen drying characteristics of strawberry (Fragaria ananassa Duch) slices were investigated. Drying experiments were carried out a three different drying temperatures (60, 70 and 80°C). The effect of drying temperature on the drying rate, drying coefficient, efficiency, effective diffusivity of the strawberry and antioxidant activity were evaluated. The best model for describing the halogen drying process was chosen by fitting nine commonly used drying models. The effective moisture diffusivity and activation energy were calculated using an infinite series solution of Fick's diffusion equation. The results showed that increasing drying temperature accelerate the halogen drying process. As well as, increasing of drying rate, drying rate constant, drying coefficient and effective diffusivity. All drying experiments had only falling rate period. The goodness of fit tests indicated that the proposed modified page model gave the best fit to experimental results at 70 and 80°C, but page model gave the best fit to experiment results at temperature of 60°C. The effective diffusivity varied from 7.53×10 −9 -2.52×10−8 m 2 /sec. Effective diffusivity was satisfactorily by an Arrhenius type relationship with activation energy with in 60-80°C temperature range. The ability of reducing power of the ferrous ion can taken as an indicator for the ability or antioxidant power for strawberry extracted.

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Section: Retardation Of Corn Oil Auto Oxidationsupporting

confidence: 85%

Section: Retardation Of Corn Oil Auto Oxidationmentioning

confidence: 92%

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MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

Al-Hilphy¹

2013

American Journal of Agricultural and Biological Sciences

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“…The activation energy was estimated using the Arrhenius equation shown in Eq. (9) [51][52][53][54]. Ln D eff versus reciprocal of absolute drying air temperature (T a ) were plotted ( Fig.…”

Section: Effective Diffusion Coefficient (D Eff ) and Activation Energymentioning

confidence: 99%

Drying Kinetics and Mathematical Modeling of Casuarina Equisetifolia Wood Chips at Various Temperatures

Sridhar¹,

Madhu

2015

Period. Polytech. Chem. Eng.

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“…Mathematical modelling is frequently appealed way to predict the change of water content throughout the food material during dehydration processes. In literature, there are plenty number of kinetic studies about dehydration of different type of food materials and in these works, different types of equation have been proposed 1,3,[12][13][14] . In these studies, 2-step method was used as a common technique for kinetic analysis.…”

Section: Introductionmentioning

confidence: 99%

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

Karacabey

2016

Braz. arch. biol. technol.

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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.

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Mathematical Modeling and Experimental Study on Thin-Layer Vacuum Drying of Ginger (Zingiber Officinale R.) Slices

Cited by 51 publications

References 15 publications

MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

Drying Kinetics and Mathematical Modeling of Casuarina Equisetifolia Wood Chips at Various Temperatures

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

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Mathematical Modeling and Experimental Study on Thin-Layer Vacuum Drying of Ginger (Zingiber Officinale R.) Slices

Cited by 51 publications

References 15 publications

MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

Drying Kinetics and Mathematical Modeling of Casuarina Equisetifolia Wood Chips at Various Temperatures

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

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MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY

MATHEMATICAL MODELING AND EXPERIMENTAL STUDY ON THIN LAYER HALOGEN DRYER OF STRAWBERRY AND STUDY ITâS EFFECT ON ANTIOXIDANT ACTIVITY