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Journal : Teknologi Indonesia

UTILIZATION OF BIOPULPING BLACK LIQUOR AS PRESERVATIVE TO FUNGAL ATTACK ON JABON WOOD (Anthocephalus cadamba Miq.) Anita, Sita Heris; Fatriasari, Widya; Zulfiana, Deni
Teknologi Indonesia Vol 37, No 3 (2014)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.051 KB) | DOI: 10.14203/jti.v37i3.229


Biopulping black liquor, byproduct from biopulping process using white-rot fungi (Phanerochaete chrysosporium) that has been incubated for 30 and 45 days, was used as preservative of Jabon wood (Anthocephalus cadambaMiq.). The main objectives of this study was to investigate the effect of various dipping durations of preservative on absorption process into wood and the weight loss of un-preserved and preserved wood againts fungal attack. Preservation method used in this study was dipping method with various dipping durations (i.e. 10, 30, and 60 minutes) with triplicate. The result showed that dipping process of of Jabon wood into biopulping black liquor for 60 minutes demonstrated the highest retention, i.e.0.21 g/cm3. The weight losses suffered fom by un-preserved and preserved Jabon wood were 55.19% to 55.67% and 6.64% to 12.78%, respectively. Biopulping black liquor had improved the resistance of Jabon wood to both white-rot and brown rot fungi attacks compared to untreated wood sample.
PRETREATMENT TRAMETES VERSICOLOR DAN PLEUROTUS OSTREATUS PADA BAGAS UNTUK PRODUKSI BIOETANOL Anita, Sita Heris; Fajriutami, Triyani; Fitria, -; Ermawar, Riksfardini Annisa; Yuli Yanto, Dede Heri; Hermiati, Euis
Teknologi Indonesia Vol 34 (2011)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.048 KB) | DOI: 10.14203/jti.v34iKhusus.37


Single and mix cultures of white-rot fungi Trametes versicolor and Pleurotus ostreatus has been applied onto sugarcane bagasse as a pretreatment process. The purpose of this research was to investigate the effect of single and mix cultures of white-rot fungi in lignin degradation while maintaining minimum loss of ?-cellulose of sugarcane bagasse. Single and mix cultures of white-rot fungi T. versicolor and P. ostreatus have been inoculated onto sugarcane bagasse which varied in 5%, 10%, and 15% (w/v) with inoculum comparison 1:1. After 4-week incubation, analysis was carried out on the content of extractives, lignin, ?-cellulose and hemicellulose. The result showed that 4-week incubation of single culture of P. ostreatus was more advantageous as a pretreatment method for sugarcane bagasse, with considerable number of lignin degradation (17,95%) and minimum loss of cellulose (11,00%) and hemicelluloses (5,75%). As with mix cultures, incubation period should have been reduced to prevent significant loss of cellulose and hemicellulose. Furthermore, with shorter incubation period, this biological pretreatment process will be more interesting and feasible for the industry.