A PENGARUH PELEPASAN PEKTIN PADA PROSES PULPING BATANG JERAMI DENGAN METODE SODA

  • Ahmad M Fuadi Universitas Muhammadiyah Surakarta
  • Aisah Cory Prasono
  • Nur Ahmad Fauzi
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Keywords: pulping process., lignin., kappa number

Abstract

The pulping process is process of dissolving lignin and hemicellulose from lignocellulosic biomass from cellulose bonds. This research was carried out using 5 time variation, namely 30, 60, 90, 120, and 150. The different sample treatments were divided into 2, samples that did not release pectin with temperature variations of 80 , 90 , 100 , and 110 . Sample treated for pectin release at variying temperature of  80 , 90 , 100 , 110 , dan 120 . With the soda process method, NaOH is used for the lignin release process. High lignin levels will give the pulp a yellow color, so the lower the lignin release content, the pulp will be white, whereas the low lignin content is influenced by the presence of NaOH, the temperature used, and the length of time for cooking the pulp. In the experiments that have been carried out, the optimum conditions for making pulp from straw stems using the soda process were obtained on samples that were treated to release pectin with a cooking temperature of 120  with a total kappa number for each time variation in minutes of 3.59; 3.39; 2.39;1.99; 0.99.

Published
2024-06-29