METHOD FOR THE ENZYMATIC CONTROL OF PITCH DEPOSITS FORMED DURING PAPER PULP PRODUCTION USING AN ESTERASE THAT HYDROLYSES TRIGLYCERIDES AND STEROL ESTERS

WIPO Patent Application WO2002075045

B1

The invention relates to the selection of a mushroom, Ophiostoma piceae, which secretes a commercial esterase. The invention also relates to the production and characterisation of the enzyme and the application tests carried out on synthetic process liquids and pulps representative of paper pulp production processes using hardwood and softwood. The results obtained demonstrate that the novel enzyme possesses great affinity and activity in relation to cholesterol linoleate, oleate, tributyrin and triolein, said enzyme being able to reduce the concentrations of sterol esters and triglycerides during the treatment of process liquids from the production of eucalyptus and pine pulps respectively.

CALERO RUEDA OLGA (ES)
GUTIERREZ SUAREZ ANA (ES)
DEL RIO ANDRADE JOSE CARLOS (ES)
MUNOZ MARTIN MARIA DEL CARMEN (ES)
PLOU GASCA FRANCISCO JOSE (ES)
MARTINEZ FERRER ANGEL TOMAS (ES)
MARTINEZ HERNANDEZ MARIA JESUS (ES)

PCT/ES2002/000120

March 13, 2003

March 14, 2002

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CONSEJO SUPERIOR INVESTIGACION (ES)
CALERO RUEDA OLGA (ES)
GUTIERREZ SUAREZ ANA (ES)
DEL RIO ANDRADE JOSE CARLOS (ES)
MUNOZ MARTIN MARIA DEL CARMEN (ES)
PLOU GASCA FRANCISCO JOSE (ES)
MARTINEZ FERRER ANGEL TOMAS (ES)
MARTINEZ HERNANDEZ MARIA JESUS (ES)

C12N9/18; C12N9/20; D21C9/08; (IPC1-7): D21C9/08; C12N9/18; C12N9/20; D21C11/00

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