TECHNOLOGY FOCUS - BIOLOGY - Preferred Microorganism: The microorganism (M1) is the microorganism as deposited in the Centraalbereau voor Schimmelcultures (CBS) and having accession number CBS 127449, or its descendant or functional mutant. The microorganism or its descendant or functional mutant, comprises a beta-glucosidase (BGL) polypeptide and/or a gene encoding the polypeptide. The microorganism (M1) comprises a nucleic acid sequence, which is at least 90% identical to SEQ ID NO: 15 or 16; or comprises a nucleic acid sequence, which is at least 88% identical to SEQ ID NO: 14. The microorganism (M1) comprises the polypeptide (P1), polynucleotide (P2) and recombinant nucleic acid vector (V1). The microorganism (M1) or host cell (C1) further comprises an additional polynucleotide encoding cellulase, endogluconase, cellobiohydrolase, beta-glucosidase, hemicellulase, esterase, laccase, protease and/or peroxidase.    TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preparation (Claimed): Producing (M2) the polypeptide (P1) involves: cultivating the host cell (C1) and/or the microorganism (M1), and recovering the polypeptide from the microorganism. In the method (M2), the polypeptide is recovered from an extract of the host cell and/or microorganism. In the method (M2), the polypeptide is recovered from the cultivation broth of the host cell and/or microorganism. In the method (M2), the bgl1 gene of the microorganism has been replaced with a heterologous polynucletide sequence encoding the polypeptide to be recovered. Preferred Polypeptide: In the microorganism (M1), the beta-glucosidase (BGL) polypeptide is selected from BGL1 (SEQ ID NO: 3 or 4), BGL2 (SEQ ID NO: 7), BGL3 (SEQ ID NO: 10) or BGL4 (SEQ ID NO: 13). The polypeptide (P1) is purified from Aspergillus saccharolyticus, such as deposit no.: CBS 127449. Preferred Polynucleotide: The polynucleotide (P2) is selected from: a) a polynucleotide encoding an amino acid sequence of SEQ ID NO: 3 or 4 or b) a polynucleotide sequence encoding a biologically active sequence variant of the amino acid sequence, where the variant has at least 92% sequence identity to the SEQ ID NO: 3 or 4 and c) a polynucleotide sequence encoding a biologically active fragment of at least 30 consecutive amino acid of any of the amino acid sequences of (a) to (b), d) a polynucleotide comprising a nucleic acid sequence having at least 70% identity to SEQ ID NO: 1, 2 or 29, or e) a polynucleotide hybridizing to SEQ ID NO: 1, 2 or 29, and f) a polynucleotide complementary to any of (a) to (e). Preferred Method: The method (M3) involves pretreating the lignocellulosic material with an agent capable of converting the lignocellulosic material into cellobiose and/or cellodextrins. The method (M3) involves treating the lignocellulosic material with at least one additional component. In the method (M3), the lignocellulosic material is at least partly degraded to monosaccharide glucose units, where at least 50% of the lignocellulosic material is degraded to monosaccharide glucose units. In the method (M3), the monosaccharide glucose units are incubated with fermenting microorganisms (preferably yeast, fungus or bacteria) thereby producing a fermentation product. The method (M3) involves obtaining fermentation product, where the fermentation product is recovered from the fermentation. In the method (M3), the chemical product is isolated from the reaction. Preferred Components: The additional component in the kit-of parts and in the method (M3) is selected from cellulases, endogluconase, cellobiohydrolase, beta-glucosidase, hemicellulase, esterase, laccase, protease or peroxidise. The agent in the method (M3) is acid, endoglucanase and/or cellobiohydrolaze. EXAMPLE - No suitable example given.