Browsing by Author "Eyzaguirre, Jaime"

Now showing items 1-8 of 8

    • Aislamiento de bacterias termofílicas productoras de xilanasas 
      Steiner W., Jeannette; Mella C., Marcos; Polanco, R.; Ortega A., Ximena; Eyzaguirre, Jaime (Asociación Chilena de Microbiología, 1996)
      Las xilanasas son enzimas, producidas por hongos y bacterias que degradan el xilano de las hemicelulosas vegetales y tienen una importante aplicación en el bioblanqueamiento de la celulosa. A partir de compost, se ...
    • BETA-GLUCOSIDASE FROM PENICILLIUM-PURPUROGENUM - PURIFICATION AND PROPERTIES 
      Hidalgo, Mauricio; Steiner, Jeannette; Eyzaguirre, Jaime (PORTLAND PRESS, 1992-04)
      Beta-glucosidade was purified from the culture supernatant of penicillium purpurogenum. The purified enzyme was homogeneous on both nondenaturing and sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis. The ...
    • Cloning, sequencing and expression of the cDNA of endoxylanase B from Penicillium purpurogenum 
      Díaz, René; Sapag, Amalia; Peirano, Alessandra; Steiner, Jeannette; Eyzaguirre, Jaime (ELSEVIER SCIENCE BV, 1997-03-18)
      The cDNA, for xylanase B from Penicillium purpurogenum was cloned and sequenced. This DNA encodes a protein of 208 amino acids which is expected to yield a protein of 183 residues upon processing of the N terminus. The ...
    • CULTURE CONDITIONS FOR ENHANCED CELLULASE PRODUCTION BY A NATIVE STRAIN OF PENICILLIUM-PURPUROGENUM 
      Steiner, Jeannette; Socha, C.; Eyzaguirre, Jaime (RAPID SCIENCE PUBLISHERS, 1994-05)
      A cellulolytic wild-type strain of Penicillium purpurogenum was isolated from a soil sample in southern Chile. It grew best at 28-degrees-C from an inoculum of 4 x 10(7) spores/100 ml medium. Highest endoglucanase activity ...
    • PENICILLIUM-PURPUROGENUM PRODUCES SEVERAL XYLANASES - PURIFICATION AND PROPERTIES OF 2 OF THE ENZYMES 
      Belancic, Andrea; Scarpa, Juan; Peirano, Alessandra; Díaz, René; Steiner, Jeannette; Eyzaguirre, Jaime (ELSEVIER SCIENCE BV, 1995-07-15)
      The fungus Penicillium purpurogenum produces several extracellular xylanases. The two major forms (xylanases A and B) have been purified and characterized. After ammonium sulfate precipitation and chromatography in Bio-Gel ...
    • Short communication: Isolation of mutants of Penicillium purpurogenum with enhanced xylanase and beta-xylosidase ... 
      Steiner, Jeannette; Carmona, P.; Ponce, C.; Berti, M.; Eyzaguirre, Jaime (KLUWER ACADEMIC PUBL, 1998-07)
      Penicillium purpurogenum was mutated with u.v. light to increase xylanase production. The best mutant, UV-64, was treated with N-methyl-N'-nitro-N-nitrosoguanidine and a second generation of mutants was obtained (NG-188 ...
    • The endoxylanases from family 11: computer analysis of protein sequences reveals important structural and ... 
      Sapag, Amalia; Wouters, Johan; Lambert, Christophe; Ioannes, Pablo de; Eyzaguirre, Jaime; Depiereux, Eric (ELSEVIER SCIENCE BV, 2002-05-09)
      Eighty-two amino acid sequences of the catalytic domains of mature endoxylanases belonging to family 11 have been aligned using the programs MATCHBOX and CLUSTAL. The sequences range in length from 175 to 233 residues. The ...
    • Two malic enzymes in Pseudomonas aeruginosa 
      Eyzaguirre, Jaime; Cornwell, E.; Borie B., Gilda; Ramírez, B. (American Society of Microbiology, 1973)
      Cell-free extract supernatant fluids of Pseudomonas aeruginosa were shown to lack malic dehydrogenase but possess a nicotinamide adenine dinucleotide (NAD) - or NAD phosphate (NADP)-dependent enzymatic activity, with ...