Quality Improvement of Solid Residue of Pogostemon Cablin Benth Var. Patchoulina 2 As Ruminant Feed Through Pre-treatment of Fermentation Using Phanerochaete Chrysosporium Fungi

• Main Author: Viola Br Purba, Monica
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/40342
• Institution: Institut Teknologi Bandung

Pogostemon cablin Benth also know as Patchouli has superior variety, namely Patchoulina 2 which has the productivity of fresh biomass of 37,73 tons/ ha/ year and dry biomass of 12,56 tons/ha/year. In the essential oil industry, 90-95% of raw materials will be left a solid residue. The Solid residue of patchouli distillation has potential as animal feed, but the quality of feed is not high so that quality improvement is carried out with fermentation pre-treatment using Phanerochaete chrysosporium. This study aimed to determine the effect of fermentation pre-treatment using P. chrysosporium fungi on the components of lignocellulose fraction, nutrient content and in vitro fermentability. The variations of experiment were solid residues of leaf with fermentation pre-treatment by using the fungus P. chrysosporium before distillation (P1), solid residues of leaf with fermentation pre-treatment using P. chrysosporium after distillation (P2), solid residues of stem-shoot with fermentation pre-treatment using P. chrysosporium before distillation (P3) and solid residues of stem-shoot with fermentation pre-treatment using P. chrysosporium after distillation (P4). Results showed that fermentation using the fungus P. chrysosporium can degrade lignin and cellulose fraction of leaf residues while stem-shoot residues able to degrade cellulose and hemicellulose. Proximate test of all variation confirms that fermentation can increase the percentage of crude protein and ash, whereas crude fat, crude fiber, and nitrogen-free-extract (NFE) percentage decrease. The suitability of residue as animal feed was tested in vitro to show the amount of ammonia and volatile fatty acid (VFA) produces and was carried out in a completely randomized design (CRD) of field grass mixture (RL) with each variations of feed (100% and 50% -50%). The results obtained that the ratio with 100% solid residues of patchouli on P3R0 gives the highest ammonia and VFA concentration followed by P2R0, P4R0, and P1R0.