Journals / Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2022 / 4th International Conference on Advanced Engineering Technologies

Effect of Different Roasting Methods on Some Properties of Walnut Kernels

Pages
65–74
Publication Date
2022-12-23
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was determined that the effect on the amount of phenolic substance in the two methods was indifferent.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the effects of oven roasting and microwave roasting on some properties of walnut kernels were determined.
📊
Key Findings & Data:Roasting methods at different oven temperatures (70, 100, and 130 ºC for one hour) and at different microwave powers (240, 535 and 830 W for 5 min) were applied to samples.
💡
Conclusion & Impact:It was determined that the effect on the amount of phenolic substance in the two methods was indifferent.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Roasting · microwave · Juglans regia L.

Abstract

In this study, the effects of oven roasting and microwave roasting on some properties of walnut kernels were determined. Roasting methods at different oven temperatures (70, 100, and 130 ºC for one hour) and at different microwave powers (240, 535 and 830 W for 5 min) were applied to samples. Moisture ratio values, total phenolic compound, antioxidant activity, and oil yield of the roasted and unroasted products were discussed. The highest oil yield was determined in the high temperature oven roasting but the microwave roasting mostly increased the oil yield of the product. Microwave roasting was found to be more suitable for decreasing moisture content. The lowest antioxidant activity was detected with microwave roasting. It was determined that the effect on the amount of phenolic substance in the two methods was indifferent.

Özet

In this study, the effects of oven roasting and microwave roasting on some properties of walnut kernels were determined. Roasting methods at different oven temperatures (70, 100, and 130 ºC for one hour) and at different microwave powers (240, 535 and 830 W for 5 min) were applied to samples. Moisture ratio values, total phenolic compound, antioxidant activity, and oil yield of the roasted and unroasted products were discussed. The highest oil yield was determined in the high temperature oven roasting but the microwave roasting mostly increased the oil yield of the product. Microwave roasting was found to be more suitable for decreasing moisture content. The lowest antioxidant activity was detected with microwave roasting. It was determined that the effect on the amount of phenolic substance in the two methods was indifferent.

🔖

Cite This Article

KANTAR, N. K., ELBİR, T., YILMAZ, Ö., KAMİLOĞLU, A. (2022). Effect of Different Roasting Methods on Some Properties of Walnut Kernels. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 4th International Conference on Advanced Engineering Technologies, 65–74. https://ajindex.com/articles/859253

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (11)

  1. Liu, M., Li, C., Cao, C., Wang, L., Li, X., Che, J.,.and Liu, X., (2021). Walnut fruit processing equipment: academic insights and perspectives. Food Engineering Reviews, 13(4), 822-857
  2. Pycia, K., Kapusta, I., Jaworska, G., Jankowska, A., (2019). Antioxidant properties, profile of polyphenolic compounds and tocopherol content in various walnut (Juglans regia L.) varieties. European Food Research and Technology, 245(3), 607-616
  3. Queirós, C. S., Cardoso, S., Lourenço, A., Ferreira, J., Miranda, I., Lourenço, M. J. V., Pereira, H., (2020). Characterization of walnut, almond, and pine nut shells regarding chemical composition and extract composition. Biomass Conversion and Biorefinery, 10(1), 175-188. [4] https://www.fao.org/faostat/en/#data/QCL. Erişim tarihi 08/11/2022
  4. Martínez, M. L., Labuckas, D. O., Lamarque, A. L., Maestri, D. M., (2010). Walnut (Juglans regia L.): genetic resources, chemistry, by‐products. Journal of the Science of Food and Agriculture, 90(12), 1959-1967
  5. Ros, E., Izquierdo-Pulido, M., Sala-Vila, A., (2018). Beneficial effects of walnut consumption on human health: Role of micronutrients. Current Opinion in Clinical Nutrition & Metabolic Care, 21(6), 498-504
  6. Hayes, D., Angove, M. J., Tucci, J., Dennis, C., (2016). Walnuts (Juglans regia) chemical composition and research in human health. Critical Reviews in Food Science and Nutrition, 56(8), 1231-1241
  7. Ni, Z. J., Zhang, Y. G., Chen, S. X., Thakur, K., Wang, S., Zhang, J. G.,. and Wei, Z. J., (2022). Exploration of walnut components and their association with health effects. Critical Reviews in Food Science and Nutrition, 62(19), 5113-5129
  8. Liu, B., Chang, Y., Sui, X., Wang, R., Liu, Z., Sun, J., Xia, J., (2022). Characterization of Predominant Aroma Components in Raw and Roasted Walnut (Juglans regia L.). Food Analytical Methods, 15(3), 717-727
  9. Małgorzata, W., Konrad, P. M., Zieliński, H., (2016). Effect of roasting time of buckwheat groats on the formation of Maillard reaction products and antioxidant capacity. Food Chemistry, 196, 355-358
  10. Gunel, Z., Torun, M., Sahin‐Nadeem, H., (2020). Sugar, d‐pinitol, volatile composition, and antioxidant activity of carob powder roasted by microwave, hot air, and combined microwave/hot air. Journal of Food Processing and Preservation, 44(4), e14371
  11. Nicoli, M. C., Anese, M., Parpinel, M., (1999). Influence of processing on the antioxidant properties of fruit and vegetables. Trends in Food Sc