PENGARUH PENGERINGAN TERHADAP PERUBAHAN WARNA, PENYUSUTAN TEBAL, DAN PENGURANGAN BERAT EMPAT JENIS BAMBU
Main Article Content
Abstract
The surface color of bamboo stem changes naturally due to surrounding conditions. This paper studies the changes
in bamboo surfaces color due to room temperature drying (KU) and oven drying (KO) at 60±2 °C. The color changes
of four bamboo species: mayan (Gigantochloa robusta Kurz.), ater (Gigantochloa atter (Hassk) Kurz. Ex.
Munro), ampel kuning (Bambusa vulgaris var. striata), and wulung (Gigantochloa atroviolacea Widjaja) were
studied together with their correlation to water loss. Color measurements were conducted based on CIE-Lab system,
while water content related to weight loss and thickness shrinkage during KU and KO. The result showed that there
was a close relationship between water loss and discolouration of bamboo culms. The water loss of mayan, ater, and
wulung showed a positive linear correlation to change of bamboo surfaces color, where the higher water loss affect greater
value of color change too. Oppositely, in ampel kuning, higher water loss, affect smaller color change value (negatively
correlated). This was because the natural color of ampel kuning in fresh conditions is not much different from color
after drying. KU treatments, biggest thickness shrinkage was mayan = 46.03%; biggest weight reduction was ampel
kuning = 28.52%; and biggest color changes (ΔE*) was ater = 15.51%. KO treatments, biggest thickness shrinkage
was mayan = 52.4%; biggest weight reduction was yellow ampel = 31.19%; and biggest color changes (ΔE*) was
ater = 18.8%.
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References
Abdullah, A. H. D., Karlina, N., Rahmatiya, W., Mudaim, S., Patimah, & Fajrin, A. R. (2017). Physical and mechanical properties of five Indonesian bamboos. IOP Conference Series: Earth and Environmental Science, 60(1), 1–5. doi: 10.1088/1755-1315/60/1/012014
Arsad, E. (2015). Teknologi pengolahan dan manfaat bambu. Jurnal Riset Industri Hasil Hutan, 7(1), 45–52. doi: 10.24111/jrihh.v7i1.856
Abdullah, A. H. D., Karlina, N., Rahmatiya, W., Mudaim, S., Patimah, & Fajrin, A. R. (2017). Physical and mechanical properties of five Indonesian bamboos. IOP Conference Series: Earth and Environmental Science, 60(1), 1–5. doi: 10.1088/1755-1315/60/1/012014.
Arsad, E. (2015). Teknologi pengolahan dan manfaat bambu. Jurnal Riset Industri Hasil Hutan, 7(1), 45–52. doi: 10.24111/jrihh.v7i1.856.
Bahanawan, A., Darmawan, T., Pramasari, D. A., Amin, Y., Adi, D. S., Lestari, E., Sudarmanto, Akbar, F., Subyakto, Dwianto, W. (2017). Kajian sifat mekanik spesies bambu langka betung hitam (Dendrocalamus asper Black). Prosiding Seminar Lignoselulosa 2017, 22–29.
Bahanawan, A., Darmawan, T., Sufiandi, S., & Dwianto, W. (2018). Mengenal bambu sembilang (Dendrocalamus giganteus Wallich ex Munro). Prosiding Seminar Lignoselulosa 2018, 88–91.
Basri, E., & Pari, R. (2017). Sifat fisis dan pengeringan lima jenis bambu. Jurnal Penelitian Hasil Hutan, 35(1), 1–13. doi: 10.20886/jphh.2017.35.1.1-13.
Boonstra, M. J., Van Acker, J., Tjeerdsma, B. F., & Kegel, E. V. (2007). Strength properties of thermally modified softwoods and its relation to polymeric structural wood constituents. Annals of Forest Science, 64, 679–690. doi: 10.1051/forest: 2007048.
Damayanto, I. G. P., Mambrasar, Y. M., & Hutabarat, P. (2016). Bamboos (Poaceae: Bambusoideae) of Papua, Indonesia. Jurnal Biologi Papua, 8(2), 57–61.
Dewanto, B. P. (2015). Pengaruh Waktu Tebang Terhadap Kekuatan Lentur Bambu Andong (Gigantochloa pseudoarundinaceae (Steudel) Widjaja). Skripsi. Fakultas Kehutanan. Institut Pertanian Bogor. Bogor.
Esteves, B. M., Domingos, I. J., & Pereira, H. M. (2008). Pine wood modification by heat treatment in air. BioResources, 3(1), 142–154. doi: 10.15376/biores.3.1.142-154.
Evans, P. D., Haase, J. G., Shakri, A., Seman, B. M., & Kiguchi, M. (2015). The search for durable exterior clear coatings for wood. Coatings, 5, 830–864. https:/10.3390/coatings5040830.
Jasni, Damayanti, R., & Pari, R. (2017). Ketahanan alami jenis-jenis bambu yang tumbuh di Indonesia terhadap rayap tanah (Coptotermes curvignathus Holmgren). Jurnal Penelitian Hasil Hutan, 35(4), 289–301. doi: 10.20886/jphh.2017. 35.3.289-301
Jasni, J., Damayanti, R., & Sulastiningsih, I. M. (2017). Pengklasifikasian ketahanan 20 jenis bambu terhadap rayap kayu kering. Jurnal Penelitian Hasil Hutan, 35(3), 171–183. doi: 10.20886/jphh.2017. 35.3.171-183
Krisdianto, K., Satiti, E. R., & Supriadi, A. (2018). Perubahan warna dan lapisan finishing lima jenis kayu akibat pencuacaan. Jurnal Penelitian Hasil Hutan, 36(3), 205–210. doi: 10.20886/jphh.2018. 36.3.205-218.
Kusmita, L., Puspitaningrum, I., & Limantara, L. (2015). Identification, isolation and antioxidant activity of pheophytin from green tea (Camellia sinensis ( L .) Kuntze). Procedia Chemistry, 14, 232–238. doi: 10.1016/j.proche.2015.03.033.
Manuhuwa, E. (2007). Kadar air dan berat jenis pada posisi aksial dan radial kayu sukun (Arthocarpus communis, J.R dan G.Frest). Jurnal Agroforestri, 2(1), 49-55.
Marsoem, S. N., Setiaji, F., Kim, N. H., Sulistyo, J., Irawati, D., Nugroho, W. D., Andini, Y., Pertiwi, B. (2015). Fiber morphology and physical characteristics of Gigantochloa atter at three different ages and heights of culms for better utilization. Journal Korean Wood Science and Technology, 43(2), 145–155. doi: 10.5658/WOOD. 2015.43.2.145
Mokrzycki, W. & Tatol, M. (2011). Color difference Delta E - A survey. Machine Graphics and Vision, 20(4), 383–411.
Murda, R. A., Nawawi, D. S., Maulana, S., Maulana, M. I., Park, S. H., & Febrianto, F. (2018). Perubahan kadar komponen kimia pada tiga jenis bambu akibat proses steam dan pembilasan. Jurnal Ilmu Teknologi Kayu Tropis, 16(2), 102–114.
Mutia, T., Sugesty, S., Hardiani, H., Kardiansyah, T., & Risdianto, H. (2014). Potensi serat dan pulp bambu untuk komposit peredam suara. Jurnal Selulosa, 4(1), 25–36. doi: 10.25269/jsel.v4i01.54.
Ozgenc, O., Hiziroglu, S., & Yildiz, U. C. (2012). Weathering properties of wood species treated with different coating applications. BioResources, 7(4), 4875–4888. doi: 10.15376/biores.7.4.4875-4888.
Rulliaty, S., Nadjib, N., Muslich, M., Jasni, Sulastiningsih, I. M., Komaryati, S., Suprapti, S., Abdurrahman, Basri, E. (2015). Informasi sifat dasar dan kemungkinan penggunaan 10 jenis bambu. Pusat Penelitian dan Pengembangan Hasil Hutan, Badan Penelitian, Pengembangan dan Inovasi, Kementerian Lingkungan Hidup dan Kehutanan.
Todaro, L., Zuccaro, L., Marra, M., Basso, B., & Scopa, A. (2012). Steaming effects on selected wood properties of Turkey oak by spectral analysis. Wood Science and Technology, 46, 89–100. doi: 10.1007/s00226-010-0377-8.
Widjaja, E. A., Rahayuningsih, Y., Rahajoe, J. S., Ubaidillah, R., Maryanto, I., Walujo, E. B., & Semiadi, G. (2014). Kekinian keanekaragaman hayati Indonesia 2014. Cibinong: LIPI Press.
Widyorini, R., Khotimah, K., & Prayitno, T. A. (2014). Pengaruh suhu dan metode perlakuan panas terhadap sifat fisika dan kualitas finishing kayu mahoni. Jurnal Ilmu Kehutanan, 8(2), 65–74. doi: 10.22146/jik.10160
