Distribusi Sel Pori pada Kayu Tarik dan Korelasinya dengan Komposisi Lignin

https://doi.org/10.22146/jik.46207

Deded Sarip Nawawi(1*), Istie Sekartining Rahayu(2), Nyoman Jaya Wistara(3), Rita Kartika Sari(4), Wasrin Syafii(5)

(1) The Division of Forest Products Chemistry, Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Bogor, Indonesia
(2) The Division of Wood Quality Improvement, Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Bogor, Indonesia
(3) The Division of Forest Products Chemistry, Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Bogor, Indonesia
(4) The Division of Forest Products Chemistry, Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Bogor, Indonesia
(5) The Division of Forest Products Chemistry, Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Bogor, Indonesia
(*) Corresponding Author

Abstract


Sifat anatomi kayu tarik dianalisis untuk parameter jumlah dan diameter pori dan korelasinya dengan komposisi lignin. Sampel kayu reaksi diambil dari batang pohon mindi (Melia azedarach) yang tumbuh miring. Pembentukan kayu tarik menurunkan jumlah dan diameter pori dan sebagai implikasinya meningkatkan proporsi serat. Jumlah dan diameter pori berkorelasi positif dengan kadar lignin. Nisbah siringil/guaiasil dan erythro/threo struktur β-O-4 berkorelasi negatif dengan jumlah dan diameter pori. Hasil penelitian ini mengkonfirmasi bahwa perubahan proporsi sel penyusun kayu akibat tegangan pertumbuhan merupakan salah satu faktor penting yang berpengaruh terhadap perubahan karakteristik kimia lignin kayu tarik.

 

Distribution of Vessels in Tension Wood and Its Correlation with Lignin Composition

Abstract

The anatomical properties of tension wood were investigated for number and diameter of vessel and its correlation with lignin composition. Reaction wood sample was taken from the leaning stem of mindi (Melia azedarach). The formation of tension wood reduced the number and size of vessel and, consequently, increased the proportion of fiber. Number and diameter of vessels positively correlated with lignin content. However, syringyl/guaiacyl ratio of lignin and erythro/threo ratio of β-O-4 structures were negatively correlated with number and diameter of vessels. It was confirmed that changes in the proportion of wood cell was an importance factor influencing the changes in chemical characteristic of tension wood lignin.


Keywords


lignin; guaiacyl; syringyl; tension wood; vessel distribution

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DOI: https://doi.org/10.22146/jik.46207

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