Abstract Alkaline delignification of wood tissue is the core global pulping technology and most prominent large-scale separation main components. This work aims at improved understanding interplay between topochemistry alkaline associated morphological changes. Morphology chemical structure partially soda-delignified chips were studied combining X-ray tomography (XRT), diffraction analysis comp...

To eliminate toxic formaldehyde from wood-based panels, a new formaldehyde-free wood adhesive (named OL/PEI adhesive) was synthesized by reaction of oxidized lignin (OL) and polyethylenimine (PEI) in the presence sodium periodate. The curing mechanism clarified Fourier transform infrared spectroscopy (FTIR) solid-state cross-polarization magic angle spinning carbon-13 nuclear magnetic resonance...

Effects of alkaline (kraft and soda) organosolv pulping were evaluated relative to the structural properties lignin isolated from coconut husk (CH) biomass. The various types functional groups within samples characterized compared using a variety complementary analyses including Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) gel permeation chromatography (GPC),...

Pulp merupakan bahan dasar dalam pembuatan kertas, dimana sebagian besar produksinya mengunakan kayu. Penelitian ini bertujuan untuk mengidentifikasi ampas tebu sebagai baku pulp yang ditinjau dari pengaruh jenis bleacher dan lama waktu pemasakan. Jenis digunakan ialah H2O2 NaClO pemasakan yaitu 30 menit, 60 menit 90 dengan proses soda. Hasil penelitian menunjukan adanya penggunaan menghasilkan...

A “waste-valorization” approach was developed to transform recalcitrant hydrolysis lignin (HL) from second-generation bioethanol production into multifunctional bio-based products. The extracted with aqueous acetone, yielding two fractions enriched in and cellulose, respectively. soluble (SHL) converted anionic cationic colloidal particles (CLPs c-CLPs). insoluble cellulose-rich fraction transf...

This research investigated the effect of hot water pre-extraction on the bleaching process and properties of wheat straw soda-AQ pulp. Preextraction experiments were carried out on wheat straw to obtain a weight loss of about 15 percent. Based on preliminary experiments, soda-AQ pulping of non-extracted straw chips was performed at 160 oC for 60 min, whereas the pre-extracted chips were pulped ...

Soda lake is hyper alkaline and saline habitat located in closed craters with high evaporation rate. In current study fungal diversity from water and sediment samples of a soda lake (Lonar lake) located in Buldhana district of Maharashtra, India was investigated using extensive culturomics approach and mimicking the natural conditions of Lonar lake in culture media. A total of 104 diverse isola...

Micro- and Nano-Fibrillated Cellulose (MNFC) have gained increasing attention due to their remarkable properties, but production usually requires an intensive multi-step process. This study proposes find a novel approach involving steam explosion for the of lignin-containing micro- nano-fibrillated cellulose (L-MNFC) using Eucalyptus globulus bark as new lignocellulosic feedstock. was first pre...