The effect of fermentation time in the fermentation of lampung robusta coffee (Coffea anephora) with the wet method on the level of preference

Abstract

The coffee produced by Lampung Robusta coffee farmers has a low-quality taste. The taste of coffee is greatly influenced by many factors, one of which is the way the coffee cherries are processed after harvest into coffee beans. The processing of coffee after harvest is through the fermentation process of the coffee cherries using the wet method. Throughout the fermentation process, metabolites are formed, which are precursor compounds that form flavor and aroma in coffee drinks. This research was conducted with the aim of improving the taste of coffee. The research was conducted by soaking the coffee beans after peeling then adding a 1: 1 LAB (Lactic Acid Bacteria) starter and soaking for A (0 hours); B (8 hours); C (16 hours); D (24 hours). Based on the results of research and organoleptic testing, color preferences (4.9), (4.9), (5.5), (5.4), taste (4.2), (4.5), (4.9), (5.3), aroma (4.8), (5), (5.1), (5.6), overall appearance (4.53), (5.2), (4.8) (4.9). Fermentation carried out on Robusta Lampung coffee beans for 24 hours in treatment D gave an effect that was able to increase the taste or liking of Lampung Robusta coffee with the fermentation process, so based on testing of coffee beans through the optimal fermentation obtained in D coffee fermentation (24 hours).

Keywords

coffee; robusta lampung; fermentation; lactic acid bacteria; passions

References

  • Aklimawati, L., Yusianto, & Mawardi, S. 2014. Karakteristik mutu dan agribisnis kopi robusta di Lereng gunung tambora , sumbawa. Pelita Perkebunan, 30(2), 159–180.
  • Bressani, A. P. P., Martinez, S. J., Evangelista, S. R., Dias, D. R., & Schwan, R. F. 2018. Characteristics of fermented coffee inoculated with yeast starter cultures using different inoculation methods. LWT - Food Science and Technology, 92(October 2017), 212–219. https://doi.org/10.1016/j.lwt.2018.02.029
  • De Bruyn, F., Zhang, S. J., Pothakos, V., Torres, J., Lambot, C., Moroni, A. V., … De Vuyst, L. 2017. Exploring the impacts of postharvest processing on the microbiota and metabolite profiles during green coffee bean production. Applied and Environmental Microbiology, 83(1), 1–16. https://doi.org/10.1128/AEM.02398-16
  • 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. https://doi.org/10.1016/0308-8146(95)00104-2
  • Dong, W., Hu, R., Chu, Z., Zhao, J., & Tan, L. 2017. Effect of different drying techniques on bioactive components, fatty acid composition, and volatile profile of robusta coffee beans. Food Chemistry, 234, 121–130. https://doi.org/10.1016/j.foodchem. 2017.04.156
  • Elhalis, H., Cox, J., Frank, D., & Zhao, J. 2020. The crucial role of yeasts in the wet fermentation of coffee beans and quality. International Journal of Food Microbiology, 333, 108796. https://doi.org/10.1016/j.ijfoodmicro.2020.108796
  • Esquivel, P., & Jiménez, V. M. 2012. Functional properties of coffee and coffee by-products. Food Research International, 46(2), 488–495. https://doi.org/10.1016/ j.foodres.2011.05.028
  • Evangelista, S, R., da Cruz Pedrozo Miguel, M., de Souza Cordeiro, C., Silva, C., Marques Pinheiro, A. . &, & Schwan, R. . 2014. Inoculation of starter cultures in a semi-dry coffee (Coffea arabica) fermentation process. Food Microbiology, 44, 87–95. https://doi.org/10.1016/j.fm.2014.05.013
  • Evangelista, S. R., Miguel, M. G. da C. P., Silva, C. F., Pinheiro, A. C. M., & Schwan, R. F. 2015. Microbiological diversity associated with the spontaneous wet method of coffee fermentation. International Journal of Food Microbiology, 210, 102–112. https://doi.org/10.1016/j.ijfoodmicro.2015.06.008
  • Farida, A., Ristanti, E., Cahyo K, A. 2013. Penurunan kadar kafein dan asam total pada biji kopi robusta menggunakan teknologi fermentasi anaerob fakultatif dengan mikroba nopkor MZ dengan mikroba nopkor MZ-15. Jurnal Teknologi Kimia Dan Industri, 2(3), 70–75.
  • Gonzalez-Aguilar, G. A., Villa-Rodriguez, J. A., Ayala-Zavala, J. F., & Yahia, E. M. 2010. Improvement of the antioxidant status of tropical fruits as a secondary response to some postharvest treatments. Trends in Food Science and Technology, 21(10), 475–482. https://doi.org/10.1016/j.tifs.2010.07.004
  • Gonzalez-Rios, O., Suarez-Quiroz, M. L., Boulanger, R., Barel, M., Guyot, B., Guiraud, J. P., & Schorr-Galindo, S. 2007. Impact of “ecological” post-harvest processing on coffee aroma: II. Roasted coffee. Journal of Food Composition and Analysis, 20(3–4), 297–307. https://doi.org/10.1016/j.jfca.2006.12.004
  • Haile, M., & Kang, W. H. 2019. The role of microbes in coffee fermentation and their impact on coffee quality. Journal of Food Quality, 2019, 1–6. https://doi.org/10.1155/2019/4836709
  • Hanifah, N., & Kurniawati, D. 2013. Pengaruh larutan alkali dan yeast pada proses pembuatan kopi fermentasi. Jurnal Teknologi Kimia Dan Industri, 2(2), 162–168.
  • Hidayat, I. R., Kusrahayu, & Mulyani, S. 2013. Total bakteri asam laktat, nilai pH dan sifat organoleptik drink yoghurt dari susu sapi yang diperkaya dengan ekstrak buah mangga. Animal Agriculture Journal, 2(1), 160–167.
  • Hui, Y., Evranuz, E., Schwan, R., Silva, C., & Batista, L. 2012. Coffee fermentation. Handbook of Plant-Based Fermented Food and Beverage Technology, Second Edition, (March 2017), 677–690. https://doi.org/10.1201/b12055-49
  • Iamanaka, B. T., Teixeira, A. A., Teixeira, A. R. R., Vicente, E., Frisvad, J. C., Taniwaki, M. H., & Bragagnolo, N. 2014. Potential of volatile compounds produced by fungi to influence sensory quality of coffee beverage. Food Research International, 64, 166–170. https://doi.org/10.1016/j.foodres.2014.06.017
  • Illy, A & Viani, R. Espresso coffee. , 53 Elsevier Academic Press § 2005.
  • Jackels, S. C., & Jackels, C. F. 2005. Characterization of the coffee mucilage fermentation process using chemical indicators: A field study in Nicaragua. Journal of Food Science, 70(5). https://doi.org/10.1111/j.1365-2621.2005.tb09960.x
  • Lee, L. W., Cheong, M. W., Curran, P., Yu, B., & Liu, S. Q. 2015. Coffee fermentation and flavor - an intricate and delicate relationship. Food Chemistry, 185, 182–191. https://doi.org/10.1016/j.foodchem.2015.03.124
  • Lee, L. W., Tay, G. Y., Cheong, M. W., Curran, P., Yu, B., & Liu, S. Q. 2017. Modulation of the volatile and non-volatile profiles of coffee fermented with Yarrowia lipolytica: II. Roasted coffee. LWT - Food Science and Technology, 80, 32–42. https://doi.org/10.1016/j.lwt.2017.01.070
  • Liu, C., Yang, N., Yang, Q., Ayed, C., Linforth, R., & Fisk, I. D. 2019. Enhancing robusta coffee aroma by modifying flavour precursors in the green coffee bean. Food Chemistry, 281, 8–17. https://doi.org/10.1016/j.foodchem.2018.12.080
  • Liu, C., Yang, Q., Linforth, R., Fisk, I. D., & Yang, N. 2019. Modifying robusta coffee aroma by green bean chemical pre-treatment. Food Chemistry, 272(April 2018), 251–257. https://doi.org/10.1016/j.foodchem.2018.07.226
  • Madhava Naidu, M., Vedashree, M., Satapathy, P., Khanum, H., Ramsamy, R., & Hebbar, H. U. 2016. Effect of drying methods on the quality characteristics of dill (Anethum graveolens) greens. Food Chemistry, 192, 849–856. https://doi.org/10.1016/ j.foodchem.2015.07.076
  • Massawe, G. A., & Lifa, S. J. 2010. Yeasts and lactic acid bacteria coffee fermentation starter cultures. International Journal of Postharvest Technology and Innovation, 2(1), 41–82. https://doi.org/10.1504/IJPTI.2010.038187
  • Murthy, P. S., & Madhava Naidu, M. 2012. Sustainable management of coffee industry by-products and value addition - A review. Resources, Conservation and Recycling, 66, 45–58. https://doi.org/10.1016/j.resconrec.2012.06.005
  • Nopitasari, I. 2010. Proses pengolahan kopi bubuk (campuran arabika dan robusta) serta perubahan mutunya selama penyimpanan. IPB.
  • Pusat Data dan Sistem Informasi Pertanian. 2016. Outlook kopi 2016 (L. and Y. A. Nuryati, Ed.). Jakarta: Pusat Data dan Sistem Informasi Pertanian Sekretariat Jenderal - Kementerian Pertanian.
  • Ribeiro, L. S., Miguel, M. G. da C. P., Evangelista, S. R., Martins, P. M. M., van Mullem, J., Belizario, M. H., & Schwan, R. F. 2017. Behavior of yeast inoculated during semi-dry coffee fermentation and the effect on chemical and sensorial properties of the final beverage. Food Research International, 92, 26–32. https://doi.org/10.1016/ j.foodres.2016.12.011
  • Silva, C. F., Vilela, D. M., de Souza Cordeiro, C., Duarte, W. F., Dias, D. R., & Schwan, R. F. 2013. Evaluation of a potential starter culture for enhance quality of coffee fermentation. World Journal of Microbiology and Biotechnology, 29(2), 235–247. https://doi.org/10.1007/s11274-012-1175-2
  • Sunarharum, W. B., Williams, D. J., & Smyth, H. E. 2014. Complexity of coffee flavor: A compositional and sensory perspective. Food Research International, 62, 315–325. https://doi.org/10.1016/j.foodres.2014.02.030
  • Sunarharum, W. B., Yuwono, S. S., & Nadhiroh, H. 2018. Effect of different post-harvest processing on the sensory profile of Java Arabica coffee. Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering, 1(1), 9–14. https://doi.org/10.21776/ub.afssaae.2018.001.01.2
  • Towaha, J., Aunillah, A., Purwanto, E. H., & Supriadi, H. 2014. Pengaruh Elevasi dan Pengolahan terhadap kandungan kimia dan citarasa kopi robusta lampung. Jurnal Tanaman Industri Dan Penyegar, 1(1), 57. https://doi.org/10.21082/jtidp. v1n1.2014.p57-62
  • Towaha, J., & Rubiyo, R. 2013. The effect of fermentation on flavor quality of probiotic civet coffee. Buletin RISTRI, 4(2), 175–182.
  • Wang, C., Sun, J., Lassabliere, B., Yu, B., & Liu, S. Q. 2020. Coffee flavour modification through controlled fermentations of green coffee beans by Saccharomyces cerevisiae and Pichia kluyveri: Part I. Effects from individual yeasts. Food Research International, 136, 109588. https://doi.org/10.1016/j.foodres.2020.109588
  • Yusianto & Widyotomo, S. 2013. Mutu dan citarasa kopi arabika hasil beberapa perlakuan fermentasi : suhu , jenis wadah , dan penambahan agens fermentasi. Pelita Perkebunan, 29(3), 220–239.

DOI : https://doi.org/10.32698/GCS-SNIIBIPD3429