Determination of Drying Rate and Some Quality Parameters of Madımak (Polygonum cognatum Meisn.) Dried at Different Temperatures

Year 2022, Volume: 22 Issue: 5, 1051 - 1060, 27.10.2022

Elif Uğur Ferda Sarı

https://doi.org/10.35414/akufemubid.1110124

Abstract

In this study, madımak (Polygonum cognatum Meisn.) was dried in a convective dryer at the temperatures of 40, 50 and 60 oC. The effect of temperature on the drying kinetics, total phenolic content, antioxidant capacity, chlorophyll a, b and total chlorophyll content of madımak plant was investigated. Three different models, Page, Newton and Weibull, were tested to define the drying curves of madımak. It was determined that the best fit model in all conditions applied was the Page model. Drying took place in the decreasing rate period, and with the increase in the temperature applied, the drying rate increased and the drying time decreased. Total polyphenol content and antioxidant capacity of dried madımak varied between 21.06-27.80 mg GAE g-1 DM and 66.82-76.33 % respectively. For all temperatures applied, after drying, the total phenolic content and antioxidant capacity of madımak decreased compared to the fresh sample. The highest and the lowest decreases were detected at 40 oC and 60 oC, respectively. For all temperatures applied, dried madımak contained less chlorophyll a, b and total chlorophyll contents than fresh one. The highest and the lowest decreases in chlorophyll contents were detected at 60 oC and at 40 oC, respectively.

Keywords

Keywords Drying, Madımak (Polygonum cognatum), Total phenolic, Antioxidant activity, Chlorophyll

Farklı Sıcaklıklarda Kurutulmuş Madımak Bitkisinin (Polygonum cognatum Meisn.) Kuruma Hızının ve Bazı Kalite Parametrelerinin Belirlenmesi

Abstract

Bu çalışmada madımak (Polygonum cognatum Meisn.) bitkisi tepsili kurutucuda 40, 50 ve 60 oC’de kurutulmuştur. Sıcaklığın madımağın kuruma kinetiği, toplam fenolik madde içeriği, antioksidan kapasitesi, klorofil a, b ve toplam klorofil miktarı üzerine etkisi incelenmiştir. Madımağın kuruma eğrisini tanımlamak için Page, Newton ve Weibull olmak üzere 3 farklı model test edilmiştir. Uygulanan tüm koşullarda en iyi uyum sağlayan modelin Page model olduğu belirlenmiştir. Kurutma azalan hız periyodunda gerçekleşmiş olup uygulanan sıcaklığın artmasıyla kuruma oranı artmış ve kuruma süresi ise azalmıştır. Kurutulmuş madımağın toplam polifenol içeriği ve antioksidan kapasitesi sırasıyla 21.06-27.80 mg GAE g-1 KM ve % 66.82-76.33 arasında değişmiştir. Her üç sıcaklık için de, kurutma sonrası madımağın toplam fenolik madde içeriği ve antioksidan kapasitesinde taze örneğe göre azalma saptanmıştır. Azalma en fazla 40 oC’de en az ise 60 oC’de tespit edilmiştir. Uygulanan tüm sıcaklıklar için, kurutulmuş madımağın taze örneğe göre daha az klorofil a, b ve toplam klorofil içerdiği belirlenmiştir. Klorofildeki bu azalma, en fazla 60 oC’de en az ise 40 oC’de gözlenmiştir.

Keywords

Kurutma, Madımak (Polygonum cognatum Meisn), Toplam fenolik, Antioksidan aktivite, Klorofil

References

• Aral, S. and Beşe, A. V., 2016. Convective drying of hawthorn fruit (Crataegus spp.): effect of experimental parameters on drying kinetics, color, shrinkage, and rehydration capacity. Food Chemistry, 210, 577-584.
• Baytop, T., 1999. Türkiye'de bitkiler ile tedavi: geçmişte ve bugün. Nobel Tıp Kitabevleri, 313.
• Chism, G.W. and Haard, N.F., 1996. Characteristics of edible plant tissues. In: Fennema O. R. (Ed.), Food Chemistry. Marcel Dekker, Inc., 943-1011, New York.
• Çevik, Ö., Şener, A., Kumral, Z. Ö., Çetinel, Ş., Altıntaş, A., Oba, R., ... Yarat, A., 2014. Protective and therapeutic effects of polygonum cognatum meissn aqueous extract in experimental colitis. Marmara Pharmaceutical Journal, 18(3), 126-134.
• Eruygur, N., Ucar, E., Ataş, M., Ergul, M., Ergul, M. and Sozmen, F., 2020. Determination of biological activity of Tragopogon porrifolius and Polygonum cognatum consumed intensively by people in Sivas. Toxicology reports, 7, 59-66.
• Goyal, R.K., Kingsly, A.R.P., Manikantan, M.R. and Ilyas, S.M., 2006. Thin-layer drying kinetics of raw mango slices. Biosystems Engineering, 95(1), 43-49.
• Guan, T.T., Cenkowski, S. and Hydamaka, A., 2005. Effect of drying on the nutraceutical quality of sea buckthorn (Hippophae rhamnoides L. ssp. sinensis) leaves. Journal of Food Science, 70(9), E514-E518.
• ISO 14502-1:2005. Determination of substances characteristicof green and blck tea. Part 1: Content of total polyphenols in tea. Colorimetric method using Folin-Ciocalteu reagent.
• İzli, N., İzli, G. and Taskin, G., 2017. Drying kinetics, colour, total phenolic content and antioxidantcapacity properties of kiwi dried by different methods. Food Measure, 11, 64–74.
• Karunasena, H.C.P., Hasemi, P., Senadeera, W., Gu, Y.T., Brown, R.J. and Oloyede, A., 2014. Scanning electron microscopic study of microstructure of gala apples during hot air drying. Drying Technology, 32, 455–468.
• Kim, H.S. and Chin, K.B., 2016. Evaluation of different drying temperatures on physico‐chemical and antioxidant properties of water‐soluble tomato powders and on their use in pork patties. Journal of the Science of Food and Agriculture, 96(3), 742-750.
• Kumar, S.S., Manoj, P., Shetty N. P. and Giridhar, P., (2015). Effect of different drying methods on chlorophyll, ascorbic acid and antioxidant compounds retention of leaves of Hibiscus Sabdariffa L. Journal of the Science of Food and Agriculture, 95(9), 1812–1820.
• Lisiewska, Z., Kmiecik, W. and Słupski, J., 2004. Contents of chlorophylls and carotenoids in frozen dill: effect of usable part and pre-treatment on the content of chlorophylls and carotenoids in frozen dill (Anethum graveolens L.), depending on the time and temperature of storage. Food Chemistry, 84(4), 511-518.
• Naidu, M.M., Vedashree, M., Satapathy, P., Khanum, H., Ramsamy, R. and Hebbar, H.U., 2016. Effect of drying methods on the quality characteristics of dill (Anethum graveolens) greens. Food Chemistry, 192, 849-856.
• Ngamwonglumlert, L., Devahastin, S. and Chiewchan, N., 2017. Natural colorants: pigment stability and extraction yield enhancement via utilization of appropriate pretreatment and extraction methods. Critical Reviews in Food Science and Nutrition, 57(15), 3243-3259.
• Özkurt, M., 2008. Polygonum Cognatum Meissn. (Madımak) tohumlarının çimlenme biyolojisi ve klonları arasındaki genetik çeşitliliğin belirlenmesi. Yüksek lisans tezi, Gaziosmanpaşa Üniversitesi Fen Bilimleri Enstitüsü, Tokat, 82 s.
• Pangavhane, D.R., Sawhney, R.L. and Sarsavadia, P.N., 1999. Effect of various dipping pretreatment on drying kinetics of thompson seedless grapes. Journal of Food Engineering, 39(2), 211-216.
• Phoungchandang, S. and Saentaweesuk, S., 2011. Effect of two stage, tray and heat pump assisted-dehumidified drying on drying characteristics and qualities of dried ginger. Food and Bioproducts Processing, 89(4), 429-437.
• Polatcı, H. and Tarhan, S., 2009. Farklı kurutma yöntemlerinin reyhan (Ocimum Basilicum) bitkisinin kuruma süresine ve kalitesine etkisi. Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi, 1, 61 s
• Potisate, Y. and Phoungchandang, S., 2010. Chlorophyll retention and drying characteristics of ivy gourd leaf (Coccinia Grandis Voigt) using tray and heat pump–assisted dehumidified air drying. Drying Technology, 28, 786–797.
• Prabhanjan, D.G., Ramaswamy, H.S. and Raghavan, G.S.V., 1995. Microwave assisted convective air drying ofthin layer carrots. Journal of Food Engineering, 25, 283-293.
• Ramesh, M.N., Wolf, W., Tevini, D. and Jung, G., 2001. Influence of processing parameters on the drying of spice paprika. Journal of Food Engineering, 49(1), 63-72.
• Rodríguez, K., Ah-Hen, K.S., Vega-Gálvez, A., Vásquez, V., Quispe-Fuentes, I., Rojas, P. and Lemus-Mondaca, R., 2016. Changes in bioactive components and antioxidant capacity of maqui, Aristotelia chilensis [Mol] Stuntz, berries during drying. LWT-Food Science and Technology, 65, 537-542.
• Sarsavadia, P.N., Sawhney, R.L., Pangavhane, D.R. and Singh, S.P., 1999. Drying behaviour of brined onion slice. Journal of Food Engineering, 40, 219-226.
• Sayili, M., Adiguzel, F. and Gozener, B., 2013. Investigation on madimak consumption status of consumers in central Tokat province. Bulgarian journal of agricultural science, 19(2), 303-313.
• Schwartz, S. J. and Von Elbe, J.H., 1983. Kinetics of chlorophyll degradation to pyropheophytin in vegetables. Journal of Food Science, 48(4), 1303-1306.
• Shivanna, V.B. and Subban, N., 2014. Effect of various drying methods on flavor characteristics and physicochemical properties of dried curry leaves (Murraya koenigii L. Spreng). Drying Technology, 32(8), 882-890.
• Simal, S., Mulet, A., Tarrazo, J. and Rosselló, C., 1996. Drying models for green peas. Food Chemistry, 55(2), 121-128.
• Sousa, A.D., Ribeiro, P.R.V., Canuto, K.M., Zocolo, G.J., Pereira, R.D.C.A., Fernandes, F.A.N. and Sousa de Brito, E., 2018. Drying kinetics and effect of air-drying temperature on chemical composition of phyllanthus amarus and phyllanthus niruri. Drying Technology, 36(5), 609-616.
• Soysal, Y., Öztekin, S. and Eren, O., 2006. Microwavedrying of parsley: modelling, kinetics and energy aspects. Biosystems Engineering, 93(4), 403–413.
• Sun, Y. and Li, W., 2017. Effects the mechanism of micro-vacuum storage on broccoli chlorophyll degradation and builds prediction model of chlorophyll content based on the color parameter changes. Scientia Horticulturae, 224, 206-214.
• Szychowski, P.J., Lech, K., Sendra-Nadal, E., Hernández, F., Figiel, A., Wojdyło, A. and Carbonell-Barrachina, Á.A., 2018. Kinetics, biocompounds, antioxidant activity, and sensory attributes of quinces as affected by drying method. Food Chemistry, 255, 157-164.
• Tan, E.S., Abdullah, A. and Maskat, M.Y., 2013. Effect of drying methods on total antioxidant capacity of bitter gourd (Momordica charantia) fruit. AIP Conference Proceedings, 1571(1), 710-716.
• Türkmen Erol N., Sari F., Çalikoǧlu E. and Velioǧlu Y.S., 2009. Green and roasted mate: Phenolic profile and antioxidant activity. Turkish Journal of Agriculture and Forestry, 33, 353–362.
• Vega, A., Fito, P., Andrés, A. and Lemus, R., 2007. Mathematical modeling of hot-air drying kinetics of red bell pepper (var. Lamuyo). Journal of Food Engineering, 79(4), 1460-1466.
• Velioglu, Y.S., Mazza, G., Gao, L. and Oomah, B.D., 1998. Antioxidant activity and total phenolics in selected fruits, vegetables, and grain products. Journal of Agricultural and Food Chemistry, 46(10), 4113-4117.
• Walther, B. A. and Moore, J.L., 2005. The Concepts of Bias, Precision and Accuracy, and Their Use in Testing The Performance of Species Richness Estimators, With A Literature Review of Estimator Performance. Ecography, 28(6), 815-829.
• Wiriya, P., Paiboon, T. and Somchart, S., 2009. Effect of drying air temperature and chemical pretreatments on quality of dried chilli. International Food Research Journal, 16(3), 441-454.
• Xu, F., Jin, X., Zhang, L. and Chen, X.D., 2017. Investigation on water status and distribution in broccoli and the effects of drying on water status using NMR and MRI methods. Food Research International, 96, 191-197.
• Yıldırım, A., Mavi, A., Kara, A.A., 2003. Antioxidant and antimicrobial activities of Polygonum cognatum Meissn extracts. Journal of the Science of Food and Agriculture, 83(1):64-69.