Determination of Drying and Rehydration Kinetics of Red Capia Pepper (Capsicum Annuum l.), Energy Analysis of Drying Process

Öz

In this study, drying characteristics of the capia pepper slices were investigated using a food drying oven. Prior to drying process of the peppers, the peppers were pretreated with a mixture of hot NaOH solution and olive oil / K2CO3 mixture. The pre-treated and non-pretreated pepper samples were dried in the food drying oven at temperatures of 50 and 60 ° C. It was observed that the applied pre-treatment and the increasement in the drying temperature decreased the drying time and changed the rehydration capacity. At 50 ˚C, the effective diffusion coefficients of the chickens dried by pre-treatment with NaOH and olive oil/K2CO3 pretreatments were 1.62 × 10-10, 3.24 × 10-10 and 8.11 × 10-10 m2s-1, respectively. At 60 ˚C, they were calculated as 3.24 × 10-10, 4.87 × 10-10 and 9.74 × 10-10 m2s-1 respectively. Activation energy values ​​were calculated as 57.62, 33.88 and 15.23 kj, respectively. In addition, thermodynamic analyzes of drying processes were carried out and cumulative consumed energy amounts were determined for each drying temperature and the pretreatment applied.

Anahtar Kelimeler

• Drying kinetics,rehydration capacity,capia pepper,thermodynamic analysis,effective diffusion coefficient

Kırmızı Kapya Biberlerinin (Capsicum Annuum l.) Kurutma ve Rehidrasyon Kinetiklerinin Belirlenmesi, Kurutma İşleminin Termodinamik Analizi

Öz

Bu çalışmada, kapya biber dilimlerinin kurutma karakteristikleri bir konvektif sıcak havalı kurutucu kullanılarak incelenmiştir. Biberlerin kuruma işleminden önce, sıcak NaOH çözeltisi ve zeytinyağı/K₂CO₃ karışımı ile ön işleme tabi tutulmuştur. Ön işleme tabi tutulan ve herhangi bir ön işleme tabi tutulmayan biber numuneleri, gıda kurutma fırınında 50 ve 60°C sıcaklıklarda kurutulmuştur. Uygulanan ön işlemin ve kurutma sıcaklığındaki artışın, kuruma süresini azalttığı ve rehidrasyon kapasitesini değiştirdiği görülmüştür. 50 ˚C sıcaklıkta ön işlemsiz, NaOH ve zeytinyağı/K₂CO₃ ön işlemleri uygulanmasıyla ile kurutulan kapya biberlerin efektif difüzyon katsayıları sırasıyla 1,62×10^-10, 3,24×10^-10 ve 8,11×10^-10 m²s^-1,  60 ˚C sıcaklıkta ise sırasıyla 3,24×10^-10, 4,87×10^-10 ve 9,74×10^-10 m²s^-1 olarak hesaplanmıştır. Aktivasyon enerjisinin değerleri ise sırasıyla 57,62, 33,88 ve 15,23 kj olarak hesaplanmıştır. Ayrıca kurutma işlemlerinin termodinamik analizleri de yapılarak her bir kurutma sıcaklığı ve uygulanan ön işlemler için kümülatif tüketilen enerji miktarları belirlenmiştir. 

Anahtar Kelimeler

• Kurutma kinetiği,rehidrasyon kapasitesi,kapya biber,termodinamik analiz,efektif difüzyon katsayısı

Kaynakça

1. [1] Howard, L.R., Smith, R.T., Wagner, A.B., Villalon, B., Burns, E.E. 1994. Provitamin A and ascorbic acid content of fresh pepper cultivars (Capsicum annuum) and processed jalapenos. Journal of Food Science, 59, 362–365. DOI: 10.1111/j.1365-2621.1994.tb06967.x
2. [2] Simonne, A.H., Simonne, E.H., Eitenmiller, R. R., Mills, H.A., Green, N. R. 1997. Ascorbic acid and provitamin A contents in unusually colored bell peppers (Capsicum annuum L.), Journal of Food Composition Analysis, Cilt. 10, s. 299–311. DOI: 10.1006/jfca.1997.0544
3. [3] Faustino, J.M.F., Barroca, M.J., Guine, R.P.F. 2007. Study of the drying kinetics of green bell pepper and chemical characterization, Food Bioprod. Process, Cilt. 85, s. 163–170. DOI: 10.1205/fbp07009
4. [4] Göğüs, F. 1994. The effect of movement of solutes on maillard reaction during drying. Leeds University, Ph.D. thesis. Leeds.
5. [5] Dincer, I. 1998. Moisture loss from wood products during drying-Part I: moisture diffusivities and moisture transfer coefficients, Energy Sources, Cilt. 20, s. 531-539. DOI: 10.1080/00908319808970044
6. [6] Aktaş, M., Gönen, E. 2014. Bay leaves drying in a humidity controlled heat pump dryer, Journal of the Faculty of Engineering and Architecture of Gazi University, Cilt. 29 (2), s. 433-441. DOI: 10.17341/gummfd.67707
7. [7] Karacaoğlu, C., Gürsoy, O., Yılmaz, Y. 2016. Ultrasonikasyon destekli vakum impregnasyon (emdirme) tekniği ile muamele işleminin kivi dilimlerinin kuruma kinetiği üzerine etkisi, Akademik Gıda, Cilt. 14 (3), s. 256-266.
8. [8] Aktaş, M., İlbaş, M., Yalçın, A., Şahin, M. 2013. Experimental investigation of drying behaviours in an infrared radiation dryer, Journal of the Faculty of Engineering and Architecture of Gazi University, Cilt. 28 (4), s. 767-775.

9. [9] Tuncer, I.K. 1995. How Kahramanmaras red pepper should be operated for internal market and external market, Sutcu Imam University Publications, Cilt. 11, s. 26-30.
10. [10] Oztekin, S., Bascetincelik, A., Soysal, Y. 1999. Crop drying programme in Turkey, Renewable Energy, Cilt. 16 (1-4), s. 789-79. DOI: 10.1016/S0960-1481(98)00282-1
11. [11] Demiray, M., Tülek, Y. 2008. Drying technology of tomatoes and some tomato antioxidant effects of compounds in the drying process, Electronic Journal of Food Technologies (GTED), 9-20.
12. [12] Torreggiani, D. 1993. Osmotic dehydration in fruit and vegetable processing, Food Research İnternational, Cilt. 26 (1), s. 59-68. DOI: 10.1016/0963-9969(93)90106-SGet
13. [13] Ponting, J. 1973.Osmotic dehydration of fruits: Recent modifications and applications, Process Biochemistry, Cilt. 8 (12), s. 18-20.
14. [14] Doymaz, I., Pala, M. 2002. Hot-air drying characteristics of red pepper, J. of Food Eng., Cilt. 55, s. 331-335. DOI:10.1016/S0260-8774(02)00110-3
15. [15] Hussaın, I., Iqbal, M., Shakır, I., Ayub, N., Rawalakot, A.J. 2004. Effect of sucrose and glucose mixture on the quality characteristics of osmotically dehydrated banana slices, Pakistan Journal of Nutrition, Cilt. 3 (5), s. 282-284.
16. [16] Sunjka P., Raghavan G. 2004. Assessment of pretreatment methods and osmotic dehydration for cranberries, Canadian Biosystems Engineering, Cilt. 46 (1), s. 45-48.
17. [17] Pangavhane, D.R., Sawhney, R.L., Sarsavadia, P.N. 1999. Effect of various dipping pretreatment on drying kinetics of Thompson seedless grapes, Journal of Food Engineering, Cilt. 39 (2), s. 211-216. DOI:10.1016/S0260-8774(98)00168-X
18. [18] Christensen, R.A., Peacock, T.D. 1997. A guide to literature on reforming American Indian research, Tribal College, Cilt. 9 (1), s. 25-32.
19. [19] Xiao, H.W., Pang, C.L., Wang, L.H., Bai, J.W., Yang, W.X., Gao, Z.J. 2010. Drying kinetics and quality of Monukka seedless grapes dried in an air-impingement jet dryer, Biosyst. Eng., Cilt. 105 (2), s. 233-240. DOI: 10.1016/j.biosystemseng.2009.11.001
20. [20] Wang, J., Law, C.L., Nema, P.K., Zhao, J.H., Liu, Z.L.,Deng, L.Z., Gao, Z.J., Xiao, H.W. 2018. Pulsed vacuum drying enhances drying kinetics and quality of lemon slices, J. Food Eng., Cilt. 224, s. 129-138. DOI: 10.1016/j.jfoodeng.2018.01.002
21. [21] Barbosa-Canovas, G.V., Vega–Mercado, 1996. H. Dehydration of Foods. First Edition, Chapmann Hall Publication. New York.
22. [22] Sacilik, K., Keskin, R., Elicin, A.K. 2006. Mathematical modeling of solar tunnel drying of thin layer organic tomato, J. Food Eng., Cilt. 73, s. 231-238. DOI:10.1016/j.jfoodeng.2005.01.025
23. [23] Liu, Q., Bakker-Arkema, F.W. 1997. Stochastic modelling of grain drying: Part 2. Model Development, Journal of Agricultural Engineering Research, Cilt. 66, s. 275-280. DOI:10.1006/jaer.1996.0145
24. [24] Crank, J. 1975. The mathematics of diffusion, Oxford University Press, OX, UK.
25. [25] Doymaz, İ. 2012. Evaluation of some thin-layer drying models of persimmon slices (Diospyos kaki L.), Energy Conversion and Management, Cilt. 56, s. 199-205. DOI:10.1016/j.enconman.2011.11.027
26. [26] Sobukola, O.P., Dairo, O.U., Odunewu, A.V. 2008. Convective hot air drying of blanched yam slices, International Journal of Food Science and Technology, Cilt. 43, s. 1233-1238. DOI:10.1111/j.1365-2621.2007.01597.x
27. [27] Aghbashlo, M., Kianmehr, M.H., Beygi, S.R.H. 2010. Drying and rehidration charactericstic of sour cherry ( Prunus Cerasus L.), J. Food Process Preservation, Cilt. 34, s. 351-365. DOI:10.1111/j.1745-4549.2008.00310.x
28. [28] Feng, H., Tang, J. 1998. Microwave finish drying of diced apples in a spouted bed, Journal of Food Science, Cilt. 63, s. 679-683. DOI:10.1111/j.1365-2621.1998.tb15811.x
29. [29] Doymaz, İ. 2018. Patlıcan dilimlerinin kurutma ve rehidrasyon karakteristiklerinin belirlenmesi, Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, 33 (3), 833-841. DOI:10.17341/gazimmfd.416386
30. [30] TSE Standart detayı. https://intweb.tse.org.tr/Standard/Standard/Standard.aspx?081118051115108051104119110104055047105102120088111043113104073082085049056050116083053072056088 (Erişim Tarihi: 27.03.2019).
31. [31] Russo, P., Adiletta, G., Di Matteo, M. 2012. The influence of drying air temperature on the physical properties of dried and rehydrated eggplant, Food and Bioproducts Processing, Cilt. 91, s. 249-256. DOI:10.1016/j.fbp.2012.10.005