Thin-layer drying kinetics and quality assessment of octopus (Octopus sp.) using mixed and open solar dryers

Arina Fatharani, Yuwana Yuwana, Faulina Maissy, Firmansyah Firmansyah, Hilda Maya Sintia Dewi, Ulfah Anis and Fitri Yuwita
Additional contact information
Arina Fatharani: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia
Yuwana Yuwana: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia
Faulina Maissy: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia
Firmansyah Firmansyah: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia
Hilda Maya Sintia Dewi: Department of Agricultural and Biosystems Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
Ulfah Anis: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia
Fitri Yuwita: Department of Agricultural Technology, Faculty of Agriculture, University of Bengkulu, Bengkulu, Indonesia

Research in Agricultural Engineering, vol. preprint

Abstract: Octopus (Octopus sp.) is highly perishable marine species for which efficient drying is essential to extend shelf life in tropical climates. The anatomical heterogeneity of the octopus complicates consistent drying. This study systematically evaluated the performance of a mixed solar dryer (MSD) and open solar drying (OSD) across distinct anatomical regions (head, mantle, and tentacles), with emphasis on drying kinetics and quality attributes. Five thin-layer models were applied to characterize moisture reduction, and product quality was assessed by measuring browning, protein, fat, and ash content. The MSD achieved a 20% higher temperature and 29% lower humidity, resulting in a 74% increase in drying rate relative to OSD. The Hasibuan and Daud model exhibited the highest predictive accuracy (coefficient of determination (R2) = 0.9965; root mean square error (RMSE) = 0.0168; sum of squared errors (SSE) = 0.0058). Significant interaction effects between anatomical region and drying method were observed for browning and ash content (P < 0.05), whereas protein and fat content were primarily influenced by anatomical characteristics. Overall, the MSD produced products with reduced browning and enhanced nutrient retention. These results support the implementation of MSD technology by small-scale processors to improve both drying efficiency and product quality in octopus preservation.

Keywords: anatomical variation; mixed-mode solar dryer; quality parameters; thin-layer modelling; cephalopod; tropical processing (search for similar items in EconPapers)
References: Add references at CitEc
Citations:

Downloads: (external link)
http://rae.agriculturejournals.cz/doi/10.17221/199/2025-RAE.html (text/html)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:preprint:id:199-2025-rae

DOI: 10.17221/199/2025-RAE

Access Statistics for this article

Research in Agricultural Engineering is currently edited by Bc. Michaela Polcarová

More articles in Research in Agricultural Engineering from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().