MEMPELAJARI KARAKTERISTIK FISIK BIJI KAKAO (Theobrema cacao L.) PADA SUHU PENGERINGAN YANG BERBEDA

Sri Waluyo, Tri Wahyu Saputra, Nikita Permatahati

Abstract


Drying is a common process step for agricultural grain products for ease of handling and to achieve the desired quality levels. One of the commodities that have high economic value produced by farmers in Lampung Province is cocoa beans. The drying process may change the physical properties of the cocoa beans and affect the processing of cocoa beans at a later stage. This study aims to determine the effect of drying temperature on changes in the physical properties of cocoa beans such as dimension, volume, weight, surface area, true density, bulk density, porosity, sphericity, and angle of repose. This research was applied to fresh non-fermented cocoa beans in testing. The cocoa beans were dried at temperatures of 40, 50 or 60oC. The research data were then statistically tested using paired sample T-Test at the 95% level to determine whether there is any effect of drying temperature on changes in its physical properties. The results showed a significant effect of drying temperature on weight, volume, geometric mean diameter (Dg), surface area, bulk density, porosity, and angle of repose of cocoa beans. Meanwhile, the sphericity and true density parameters did not significantly change.

 

Keywords: cocoa beans, drying, physical properties


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References


Andasuryani, P.N. dan Sutan, S.M. 2015. Kajian-Sifat-sifat Fisik buah dan Biji Kakao. Jurnal Teknologi Pertanian Andalas, 19(1): 1-9.

Anisum. 2016. Analisis Kinetika Kadar Air pada Pengeringan Biji Kakao (Theobrama Cacao Linn) dengan Menggunakan Pengering Tipe Grennhouse. Jurnal Pertanian Terpadu, 4(2): 19-29.

Anyidoho, E.K. 2015. The Effects of Moisture and Fermentation Periods on The Physical and Biochemical Properties of ‘Amelonado’ and ‘Hybrid’ Varieties of Cocoa Beans. The Department of Agricultural Engineering of The School of Agriculture. [PhD Thesis]. University of Cape Coast.

[BPS] Badan Pusat Statistik. 2019. Statistik Kakao Indonesia 2019.

[BSN] Badan Standarisasi Nasional. 2008. SNI 01-2323-2008 Tentang Standar Mutu Biji Kakao. Badan Standarisasi Nasional, Jakarta.

Carr, R. L. 1976. Powder and Granule Properties and Granule Properties and Mechanism. Di dalam: Marchello, J. M. And A. Gomezplata (eds). Gass Solid Handling in The Processing Industries. Marchell Dekker, Inc, New York.

Chakraverty, A. dan Singh, R.P. 2001. Postharvest Techolology: Cereal, Pulses, Fruits And Vegetables. Science Publishers, Inc. USA: Enfield, NH.

Culver, C. A. and Wrolstad, R. E. 2008. Color Quality of Fresh and Processed Foods. ACS Symposium Series 983. ACS Division of Agricultural and Food Chemistry, Inc. American Chemical Society. Washington, DC: Oxford University Press.

Desrosier, N.W. 1988. Teknologi Pengawetan Pangan. Penerjemah M. Muljohardjo. Jakarta:UI-Press.

Deus, V.L., M.B. Cerqueira E Silva, L.F. Maciel, L.C.R. Miranda, E.Y. Hirooka, S.E. Soares, E.S. Ferreira, dan E.S. Bispo. 2018. Influence of Drying Methods on Cocoa (Theobroma cacao L.): Antioxidant Activity and Presence of Ochratoxin A. Food Sci. Technol, Campinas, 38(Suppl. 1): 278-285.

Divekar, S.P., Thakor, N.J., Mulla, H.Y., dan Sawant, M.V. 2011. Effect of Drying on Physical Properties of Nutmeg. Engineering of Technology in India, 2(1&2):18- 23.

Filho, C.P.H; A.L.D. Gonelo; T.E. Masetto; and E.A.S. Martins. 2016. The Effect of Drying Temperatures and Storage of Seeds on The Growth of Soybean Seedlings. Journal of Seed Science, 38(4): 287-295.

Jain, R.K., dan Bal. S. 1997. Properties of Pearl Millet. J. agric. Engng Res, 66: 85-91.

Kaleemullah, S. dan Kailappan, R. 2003. Geometric and Morphometric Properties of Chillies. International Journal of Food Properties, 6(3): 481-498.

Koua, B.K., Koffi, P.M.E., dan Gbaha, P. 2017. Evolution of Shrinkage, Real Density, Porosity, Heat and Mass Transfer Coefficients During Indirect Solar Drying of Cocoa Beans. Journal of the Saudi Society of Agricultural Sciences, 18(1): 1-11.

Lasisi, D. 2014. A Comparative Study of Effects of Drying Methods on Quality of Cocoa Beans. International Journal of Engineering Research & Technology (IJERT), 3(1): 991-996.

Mohsenin, N.N. 1986. Physical Properties of Plant and Animal Materials Volume 1: Structure, Physical Characteristics and Mechanical Properties. New York: Gordon and Breach Science Publishers.

Murad, Sukmawaty, Sabani, R., dan Putra, G.M.D. 2015. Pengeringan Biji Kemiri Pada Alat Pengering Tipe Batch Model Tungku Berbasis Bahan Bakar Cangkang Kemiri. Jurnal Ilmiah Rekayasa Pertanian dan Biosistem, 3(1): 122-127.

Ndukwu M.C. 2009. Effect of Drying Temperature and Drying Air Velocity on the Drying Rate and Drying Constant of Cocoa Bean. Agricultural Engineering International: the CIGR Ejournal. Manuscript 1091, XI April 2009.

Ndukwu M.C., Simonyan, K.J., dan Ndirika, V.I.O. 2012. Investigation of The Structural Changes of Cocoa Bean (with and without seed coat) During Convective Drying. Int J Agric & Biol Eng, 5(3): 75-82.

Pangaribuan, S., Nuryawati, T., dan Suprapto, A. 2016. Sifat Fisik dan Mekanik Serta Pengaruh Penyosohan terhadap Sifat Fisik dan Mekanik Biji Sorgum Varietas KD 4. Prosiding Seminar Nasional Pengembangan Teknologi Pertanian Politeknik Negeri Lampung (pp. 81-86). Politeknik Negeri Lampung. 8 September 2016.

[Permentan RI] Peraturan Menteri Pertanian Republik Indonesia. Nomor 67/Permentan/OT.140/5/2014 Tentang Persyaratan Mutu dan Pemasaran Biji Kakao. Berita Negara Republik Indonesia Tahun 2014 Nomor 679.

Risdianti, D., Murad., dan Putra, G.M.D. 2016. Kajian Pengeringan Jahe (Zingiber Officinale Rosc) Berdasarkan Perubahan Geometrik dan Warna Menggunakan Metode Image Analysis. Jurnal Ilmiah Rekayasa Pertanian dan Biosistem, 4(2): 275-284.

Senadeera W, Adiletta G, Önal B, Di Matteo M, Russo P. 2020 Influence of Different Hot Air Drying Temperatures on Drying Kinetics, Shrinkage, and Colour of Persimmon Slices. Foods, 9(1):101.

Shitanda, D., Nishiyama, Y., dan Koide S. 2002. Compressive Strength Properties of Rough Rice Considering Variation of Contact Area. Journal of Food Engineering, 53: 53-58.

Siddique, A.B. dan D. Wright. 2003. Effects of Different Drying Time and Temperature on Moisture Percentage and Seed Quality (Viability and Vigour) of Pea Seeds (Pisum sativum L.). Asian Journal of Plant Sciences, 2: 978-982.

Suherman., Purbasari, A., dan Aulia, MP. 2012. Pengaruh Suhu Udara dan Berat Sampel pada Pengeringan Tapioka Menggunakan Pengering Unggun Terfluidakan. Prosiding SNST (pp. 45-50). Semarang. Fakultas Teknik Universitas Wahid Hasyim.

Syah, H., Yusmaniar., dan Maulana, O. 2013. Karakteristik Fisik Bubuk Kopi Arabika Hasil Penggilingan Mekanis dengan Penambahan Jagung dan Beras Ketan. Jurnal Teknologi dan Industri Pertanian Indonesia, 5(1), 32-37.

Tardzenyuy, M.E., Z. Jianguo, T. Akyene, dan M.P. Mbuwel. 2020. Improving cocoa beans value chain using a local convection dryer: A case study of Fako division Cameroon. Scientific African, 8: e00343.




DOI: http://dx.doi.org/10.23960/jtep-l.v10i2.200-208

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