Response Surface Method Approach for Optimizing Roasting Condition in Robusta Coffee Cupping Test Quality
DOI:
https://doi.org/10.23960/jtep-l.v12i3.610-618Abstract
The Roasting process was an important step to generate good-quality roasted coffee beans. Two factors that affected coffee bean perfection were roasting time and temperature. An appropriate time and temperature will emphasize the greatest coffee bean aroma, color, and flavor, while the speed of the roasting process depends on the number of stirring fins in a roasted machine. The purpose of this study was to optimization time, temperature, and stirring fin number in the roasting process to generate the best cupping test roasted coffee beans. The Central Composite Design (CCD) was used in this study to determine Response Surface model. Minitab 17 and Design Expert 4.0 software used to determine the combination for all variables. Robusta green bean was taken from Kota Agung Timur, Lampung, which had density of 701"750 g/L. The result recommended roasted coffee bean was at 213oC for 16.7 minutes and used 3 stirring fins. This condition will generate cupping test score 84.92 which is define as Excellent in score notation criteria. CCD methods has develop an equation from optimal process to predict roasted coffee bean cupping test quality i.e., Y = 85.6 − 0.0088X1 − 1.2X2 − 11.06X3 + 0.000043X12 − 0.038X22 − 0.70X32 + 0.01000X1X2 + 0.0625X1X3 + 0.300X2X3.
Keywords: Cupping test, Response surface model optimization, Robusta coffee bean.
References
Akillioglu, H.G., &Gökmen, V. (2014). Mitigation of acrylamide and hydroxymethyl furfural in instant coffee by yeast fermentation. Food Research International, 61, 252–256. doi: 10.1016/j.foodres.2013.07.057.
Albouchi, A., Russ, J., & Murkovic, M. (2018). Parameters affecting the exposure to furfuryl alcohol from coffee. Food and Chemical Toxicology, 118, 473–479. doi: 10.1016/j.fct.2018.05.055.
Amrein, T.M., Bachmann, S., Noti, A., Biedermann, M., Barbosa, M.F., Biedermann-Brem, S., Grob, K., Keiser, A., Realini, P., Escher, F., & Amadó, R. (2003). Potential of acrylamide formation, sugars, and free asparagine in potatoes: A comparison of cultivars and farming systems. Journal of Agricultural and Food Chemistry, 51(18), 5556–5560. doi: 10.1021/jf034344v.
Blank, I. (2005). Current status of acrylamide research in food: Measurement, safety assessment, and formation. Annals of the New York Academy of Sciences, 1043, 30–40. doi: 10.1196/annals.1333.004.
Bottazzi, D., Farina, S., Milani, M., & Montorsi, L. (2012). A numerical approach for the analysis of the coffee roasting process. Journal of Food Engineering, 112(2), 243–252. doi:10.1016/j.jfoodeng.2012.04.009.
Budryn, G. Grzelczyk, J., JaÅ›kiewicz, A., Å»yżelewicz, D., Pérez-Sánchez, H., & Cerón-Carrasco, J.P. (2018). Evaluation of butyrylcholinesterase inhibitory activity by chlorogenic acids and coffee extracts assed in ITC and docking simulation models. Food Research International, 109, 268–277. doi: 10.1016/j.foodres.2018.04.041.
Budryn, G., Nebesny, E., & Oracz, J. (2015). Correlation between the stability of chlorogenic acids, antioxidant activity and acrylamide content in coffee beans roasted in different conditions. International Journal of Food Properties, 18(2), 290–302. doi: 10.1080/10942912.2013.805769.
Cagliero, C., Nan, H., Bicchi, C., & Anderson, J.L. (2016). Matrix-compatible sorbent coatings based on structurally-tuned polymeric ionic liquids for the determination of acrylamide in brewed coffee and coffee powder using solid-phase microextraction. Journal of Chromatography A, 1459, 17–23. doi: 10.1016/j.chroma.2016.06.075.
Caporaso, Whitworth, M.B., Cui, C., & Fisk, I.D. (2018). Variability of single bean coffee volatile compounds of Arabica and robusta roasted coffees analysed by SPME-GC-MS. Food Research International, 108, 628–640. doi: 10.1016/j.foodres.2018.03.077.
Choo, E. (2013). Belajar Roasting Kopi: Rahasia Candu Penikmat Kopi Secara Konsisten Melalui Teknik Roasting Kelas Dunia. E-book. http://www.scribd.com.
Ciesarová, Z. (2016). Impact of L-asparaginase on acrylamide content in fried potato and bakery products. Acrylamide in Food: Analysis, Content and Potential Health Effects, 45(4), 405–421. doi: 10.1016/B978-0-12-802832-2.00021-8.
Claus, A., Carle, R., & Schieber, A. (2008). Acrylamide in cereal products: A review. Journal of Cereal Science, 47(2), 118–133. doi: 10.1016/j.jcs.2007.06.016.
Hashim, L., & Chaveron, H. (1995). Use of methylpyrazine ratios to monitor the coffee roasting. Food Research International, 28(6), 619–623. doi: 10.1016/0963-9969(95)00037-2.
Huang, L.-F. Wu, M.-J., Zhong, K.-J., Sun, X.-J., Liang, Y.-Z., Dai, Y.-H., Huang, K.-L., & Guo, F.-Q. (2007). Fingerprint developing of coffee flavor by gas chromatography-mass spectrometry and combined chemometrics methods. Analytica Chimica Acta, 588(2), 216–223. doi: 10.1016/j.aca.2007.02.013.
ICO (International Coffee Organization). (2019). World Coffee Consumption for 2019/2020.
Linge, T.R. (2011). The Coffee Cupper's Handbook: Systematic Guide to the Sensory Evaluation of Coffee's Flavor. Specialty Coffee Association of America: 66 pp
Lisboa, M.H., Vitorino, D.S., Delaiba, W.B., Finzer, J.R.D., & Barrozo, M.A.S. (2007). A study of particle motion in rotary dryer. Brazilian Journal of Chemical Engineering, 24(3), 365–374. doi: 10.1590/S0104-66322007000300006.
De Maria, C.A.B., Trugo, L.C., Aquino Neto, F.R., Moreira, R.F.A, & Alviano, C.S. (1996). Composition of green coffee water-soluble fractions and identification of volatiles formed during roasting. Food Chemistry, 55(3), 203–207. doi: 10.1016/0308-8146(95)00104-2.
MartÃn, M.J., Pablos, F., & González, A.G. (1999). Characterization of arabica and robusta roasted coffee varieties and mixture resolution according to their metal content. Food Chemistry, 66(3), 365–370. doi: 10.1016/S0308-8146(99)00092-8.
Mendes, L.C., de Menezes, H.C., Aparecida, M., & da Silva, A.P. (2001). Optimization of the roasting of robusta coffee (C. canephora conillon) using acceptability tests and RSM. Food Quality and Preference, 12(2), 153–162. doi: 10.1016/S0950-3293(00)00042-2.
Montgomery, D.C. (2006). Design and Analysis of Experiments. 5th Ed. Wiley India Pvt. Limited: 696 Pp.
Nugroho, J. W. K., Lumbanbatu, J., & Sri, R. (2009). Pengaruh suhu dan lama penyangraian terhadap sifat fisik-mekanis biji kopi robusta. Seminar Nasional dan Gelar Teknologi PERTETA, 2081(7152): 217–225.
Purnamayanti, N.P.A., Ida, B.P., & Gede, A. (2017). Pengaruh suhu dan lama penyangraian terhadap karakteristik fisik dan mutu sensori kopi arabika (Coffea arabica L). Jurnal Biosistem dan Teknik Pertanian, 5(2), 39–48.
Saloko, S., Sulastri, Y., Murad, M., & Rinjani, M.A. (2019). The effects of temperature and roasting time on the quality of ground robusta coffee (Coffea rabusta) using Gene Café roaster. AIP Conference Proceedings, 2199, 060001. https://doi.org/10.1063/1.5141310
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