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Pre-drying of 2-Phase Olive Pomace by Drum Dryer to Improve Processability

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Abstract

Abstract

In this study, the minimum quality loss of 2-phase olive pomace and the maximum system’s energy efficiency is targeted during pre-drying of olive pomace in a drum dryer. Vapor pressure and valse rotational speed were selected as the independent variables of drum dryer. For each vapor pressure value (1, 2, 3, 3.5 and 4 bar), drying of 2-phase olive pomace was performed at different valse rotational speeds (0.5, 1, 2, 3, 4.5 and 6 rpm). Drum dryer conditions were optimized with desirability function approach by targeting the moisture content range as 30–50%, minimum peroxide value and maximum specific moisture extraction rate (SMER). The optimum drum dryer conditions were determined as 3.27 bar for vapor pressure and 6 rpm for valse rotational speed. Moreover, the effects of vapor pressure and valse rotational speed on the physical and chemical properties of pre-dried 2-phase olive pomace and the system’s energy efficiency were examined.

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Acknowledgements

The authors acknowledge Ege University, Council of Scientific Research Projects (Project Number: 16-MUH-024) for financial support.

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Authors and Affiliations

  1. Food Engineering Department, Faculty of Engineering, Ege University, Bornova, 35100, Izmir, Turkey

    Ulaş Baysan & Figen Kaymak Ertekin

  2. Food Engineering Department, Faculty of Engineering, Aydın Adnan Menderes University, 09010, Aydın, Turkey

    Ulaş Baysan & Mehmet Koç

  3. Mechanical Engineering Department, Faculty of Engineering, Ege University, Bornova, 35100, Izmir, Turkey

    Ali Güngör

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  1. Ulaş Baysan
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  4. Figen Kaymak Ertekin
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Correspondence to Mehmet Koç.

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Baysan, U., Koç, M., Güngör, A. et al. Pre-drying of 2-Phase Olive Pomace by Drum Dryer to Improve Processability. Waste Biomass Valor 12, 2495–2506 (2021). https://doi.org/10.1007/s12649-020-01202-2

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  • DOI: https://doi.org/10.1007/s12649-020-01202-2

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