Model Pengeringan Lapisan Tipis Rebung Bambu “Tabah” (Gigantochloa nigrociliata KURZ)

Gede Arda, P.K. Diah Kencana, IBP. Gunadnya, Ni Luh Yulianti

Abstract


Abstrak. Rebung bambu tabah (Gigantochloa nigrociliata KURZ) merupakan produk khas daerah Pupuan, Tabanan, Bali yang mempunyai potensi untuk dikembangkan sebagai produk yang bernilai ekonomis. Kajian awal proses pengeringan rebung untuk meningkatkan umur simpan rebung bambu Tabah dilakukan pada penelitian ini. Kurva laju pengeringan rebung bambu Tabah memberikan informasi penting untuk proses pengeringan. Oleh karena itu, tujuan penelitian ini adalah mempelajari karakteristik laju pengeringan rebung bambu Tabah melalui aplikasi model pengeringan lapisan tipis. Rebung bambu Tabah yang dibelah menjadi dua dan empat bagian dikeringkan pada suhu 50oC, 60oC, dan 70oC. Perubahan kadar air setiap saat kemudian dimodelkan dengan model Newton dan Page. Kesesuaian model yang digunakan dievaluasi dengan menentukan nilai koefisien determinasi (r2) dan RMSE dari model. Hasil menunjukkan bahwa model Page lebih baik digunakan untuk memodelkan pengeringan rebung bambu Tabah pada semua perlakuan. Model Newton menunjukkan ketidaksesuaian yang sangat tinggi pada suhu 50oC namun kesesuaiannya meningkat pada suhu yang lain. 

 

Thin Layer Drying Model of Bamboo Shoots “Tabah” (Gigantochloa nigrociliata KURZ) 

Abstract. Bamboo shoots Tabah (Gigantochloa nigrociliata KURZ) is a unique product of Pupuan District, Tabanan, Bali which is potent to be developed as highly value product. Preliminary study of the bamboo shoots drying to enhance its storage life was conducted in this research. Bamboo shoots Tabah’s drying rate curve give an important information for its drying process. Therefore, the aim of this research was to study the characteristics of bamboo shoots Tabah drying by applying thin layer drying models. Bamboo shoots split into two and four pieces were dried under drying air temperatures 50oC, 60oC, and 70oC. Instantaneous moisture content of the shoots are modeled by Newton and Page model. The goodness of the models were evaluated by determining its coefficient of determination (r2) and RMSE. The results showed that Page model was better to model the bamboo shoots Tabah drying process on all drying treatments. The Newton Model indicated the worst fit on drying air temperature 50oC while showed better fit on other temperatures.


Keywords


rebung bamboo tabah; model pengeringan lapisan tipis; bamboo shoots Tabah; thin layer drying models

Full Text:

PDF

References


Agrawal, Y.C. and Singh, R.P., 1977, Thin-layer drying studies on short-grain rice, ASAE Paper, No. 77-3531 (St. Joseph, MI, USA).

Akpinar, E.K., 2006a. Determination of suitable thin layer drying curve model for some vegetables and fruits. Journal of Food Engineering 73, 75–84.

Akpinar, E.K., Bicer, Y., Yildiz, C., 2003. Thin layer drying of red pepper. Journal of Food Engineering 59, 99–104.

Aregbesola, O.A., B.S Ogunsina, A.E. Sofolahan, N.N. Chime. 2015. . Mathematical modeling of thin layer drying characteristics of dika (Irvingia gabonensis) nuts and kernels .Nigerian Food Journal 33 (2015) 83–89.

Chandra, P.K. and Singh, R.P., (1995). Applied Numerical Methods for Food and Agricultural Engineers. (CRC Press, Boca Raton, FL), pp. 163–167.

Chandra, P.K. and Singh, R.P., (1995). Applied Numerical Methods for Food and Agricultural Engineers. (CRC Press, Boca Raton, FL), pp.163–167.

Chhinman, M.S., 1984, Evaluation of selected mathematical models for describing thin layer drying of in-shell pecans. Trans ASAE, 27: 610–615.

Diamante, L.M. and Munro, P.A., 1993, Mathematical modelling of the thin layer solar drying of sweet potato slices. Solar Energy,51: 271–276.

Henderson, S.M., 1974, Progress in developing the thin-layer drying equation. Trans ASAE, 17: 1167–1168.

Jain, D., Pathare, P.B., 2007. Study the drying kinetics of open sun drying of fish. Journal of Food Engineering 78, 1315–1319.

Jayas, D.S., Cenkowski, S., Pabis, S., Muir, W.E., 1991. Review of thin layer drying and wetting equations. Drying Technology 9 (3), 551–558.

Karathanos, V.T., Belessiotis, V.G., 1999. Application of a thin layer equation to drying data of fresh and semi-dried fruits. Journal of Agricultural Engineering Research 74, 355–361.

Kassem, A.S., 1998, Comparative studies on thin layer drying models for wheat, In Proceedings of the 13th International Congress on Agricultural Engineering, Vol. 6

Kassem, A.S.. A.Z. Shokr, A.R. El-Mahdy, A.M. Aboukarima, E.Y. Hamed. 2011. Comparison of drying characteristics of Thompson seedless grapes using combined microwave oven and hot air drying, Journal of the Saudi Society of Agricultural Sciences (2011) 10, 33–40. http://dx.doi.org/10.1016/j.jssas.2010.05.001

Midilli, A., Ku¨ c，u¨ k, H. and Yapar, Z., 2002, A new model for single layer drying. Dry Technol, 20(7): 1503–1513.

Mujumdar, Arun S.. 2006. Handbook of industrial drying, third edition, Taylor & Francis Group, LLC. New York

O’Callaghan, J.R., Menzies, D.J. and Bailey, P.H., 1971, Digital simulation of agricultural dryer performance. J Agric Eng Res, 16(3): 223–244.

Sharaf-Elden, Y.I., Blaisdell, J.L. and Hamdy, M.Y., 1980, A model of ear corn drying. Trans ASAE, 5: 1261–1265.

Thuwapanichayanan, R., Prachayawarakorn, S., Soponronnarit, S., 2008. Drying characteristics and quality of banana foam mat. Journal of Food Engineering 86, 573–583.

Verma, L.R., Bucklin, R.A., Endan, J.B. and Wratten, F.T., 1985, Effects of drying air parameters on rice drying models. Trans. ASAE, 296–301

Wang, C.Y. and Singh, R.P., 1978, A single layer drying equation for rough rice, ASAE Paper, No. 78-3001 (St. Joseph, MI, USA).

Yaldiz, O., Ertekin, C., Uzun, H.B., 2001. Mathematical modelling of thin layer solar drying of sultana grapes. Energy 26, 457–465.




DOI: https://doi.org/10.17969/rtp.v9i1.4408

Article Metrics

Abstract view : 0 times
PDF - 0 times

Refbacks

  • There are currently no refbacks.


Creative Commons LicenseISSN: 2085-2614E-ISSN: 2528-2652
Copyright© | ISSN: 2085-2614 | EISSN: 2528-2654
Rona Teknik Pertanian is licensed under a Creative Commons Attribution 4.0 International License.

 

Published by: 
Departemen Teknik Pertanian, Fakultas Pertanian, Universitas Syiah Kuala 
associated with Indonesia Society of Agricultural Engineering (ISAE) Aceh.
Jl. Tgk. Hasan Krueng Kalee No. 3, Kopelma Darussalam,
Banda Aceh, 23111, Indonesia.
Email: jronatp@usk.ac.id

Online Submissions & Guidelines | Editorial Policies | Contact | Statistics | Indexing | Citations