Pengaruh Penambahan Polyvinyl Alcohol (PVOH) pada Biofoam dari Tepung Biji Nangka dan Ampok Jagung dengan Metode Thermopressing
DOI:
https://doi.org/10.32734/jtk.v12i2.9228Keywords:
corn hominy, biofoam, cassava peel starch, PVOH, thermopressingAbstract
Starch and fiber-based biofoam as a solution to replace the role of styrofoam. However, the biofoam still unqualified as a good foam characteristic. Polyvinyl alcohol (PVOH) is added to improve the physical characteristics of biofoam. This study aims to determine the effect of PVOH addition on the quality of starch-based biofoam from jackfruit seeds and corn hominy. The gelatinization process was carried out using a mixer in 350 rpm speed at 100 °C for 5 minutes, then moulded in a thermopressing unit for 25 minutes at 100 °C. The characteristics of the material with amylose and amylopectin contents 17.30% and 31.60% respectively and corn hominy's fiber content at 2.72%. The best PVOH addition was 10% addition based on its characteristics from parameters such as water absorption, density, and biodegradability were close to Synbra Technology’s standard. However, all the physical and mechanical characteristics of the produced biofoam still can't reach the standard.
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E. S. Iriani, T. T. Irawadib, T. C. Sunartic, N. Richanaa, and I. Yuliasihc, “Corn Hominy, a Potential Material for Biodegradable Foam,†In Proceeding International Maize Conference, 2013.
I. Nurfitasari, “Pengaruh penambahan kitosan dan gelatin terhadap kualitas biodegradable foam berbahan baku pati biji nangka (Artocarpus heterophyllus),†Skripsi, Universitas Islam Negeri Alauddin Makassar, Makassar, 2018.
S. Mollasalehi, “Fungal biodegradation of polyvinyl alcohol in soil and compost environments,†Dissertation, The University of Manchester, Manchester, 2013.
E. S. Iriani, “Pengembangan produk biodegradable foam berbahan baku campuran tapioka dan ampok,†Disertasi, Institut Pertanian Bogor, Bogor, 2013.
R. Swandaru, “Pengaruh penambahan polivinil alkohol dan perbedaan rasio campuran ampok jagung dan tapioka terhadap karakter fisik biodegradable foam,†Skripsi, Institut Pertanian Bogor, Bogor, 2011.
BSN, “Cara uji makanan dan minuman SNI 01-2891-1992.†Jakarta: Badan Standardisasi Nasional, 1992.
N. Hendrawati, K. Sa’diyah, E. Novika, and A. A. Wibowo, “The effect of polyvinyl alcohol (PVOH) addition on biodegradable foam production from sago starch,†in Proceedings of 2nd International Conference on Chemical Process and Product Engineering (ICCPPE), 2020, p. 050008.
A. U. M. Ritonga, “Pembuatan dan karakterisasi biofoam berbasis komposit serbuk daun keladi yang diperkuat oleh Polivinil Asetat (PVAc),†Tesis, Universitas Sumatera Utara, Medan, 2019.
F. Debiagi, S. Mali, M. V. E. Grossmann, and F. Yamashita, “Biodegradable foams based on starch, polyvinyl alcohol, chitosan and sugarcane fibers obtained by extrusion,†Brazilian Archives of Biology and Technology, vol. 54, no. 5, pp. 1043–1052, 2011.
N. Etikaningrum, J. Hermanianto, E. S. Iriani, R. Syarief, and A. W. Permana, “Pengaruh penambahan berbagai modifikasi serat tandan kosong sawit pada sifat fungsional biodegradable foam,†Jurnal Penelitian Pascapanen Pertanian, vol. 13, no. 3, pp. 146, 2018.
A. Akmala and E. Supriyo, “Optimasi konsentrasi selulosa pada pembuatan biodegradable foam dari selulosa dan tepung singkong,†Pentana: Jurnal Penelitian Terapan Kimia, vol. 01, no. 1, pp. 27–40, 2020.
R. R. H. Hau, M. Masturi, I. Yulianti, S. K. Hau, and S. D. Talu, “Modulus elastisitas bambu betung dengan variabel panjang,†in Prosiding Seminar Nasional Fisika (E-Journal) SNF2016 UNJ, Pendidikan Fisika dan Fisika FMIPA UNJ, 2016.
D. Preechawong, M. Peesan, R. Rujiravanit, and P. Supaphol, “Preparation and properties of starch/poly(vinyl alcohol) composite foams,†Macromol Symp, vol. 216, no. 1, pp. 217–228, 2004.
P. Cinelli, E. Chiellini, J. W. Lawton, and S. H. Imam, “Foamed articles based on potato starch, corn fibers and poly(vinyl alcohol),†Polym Degrad Stab, vol. 91, no. 5, pp. 1147–1155, 2006.
R. Dewi, N. Sylvia, Z. Zulnazri, and M. Riza, “The effect of pineapple leaf fiber addition to mechanical and thermal characteristics of sago starch based biofoam with thermopressing method,†Indonesian Journal of Chemical Analysis, vol. 6, no. 1, pp. 31–41, 2023.
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