Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1994-07-06
1997-09-16
Czaja, Donald E.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
162199, 162DIG4, 435278, D21C 908, C12P 762
Patent
active
056676344
ABSTRACT:
Addition of a water-soluble polyelectrolyte (i.e. an anionic or cationic polymer) significantly increases the hydrolysis rate of esters in the presence of lipases. The invention provides a process for hydrolysis of water-insoluble ester in the presence of a lipase characterized by the presence of a water-soluble polyelectrolyte. The invention also provides a method of increasing the rate of hydrolysis of water-insoluble ester in the presence of a lipase by incorporation of a water-soluble polyelectrolyte.
REFERENCES:
patent: 4184912 (1980-01-01), Payton
patent: 4190491 (1980-02-01), Drennen et al.
patent: 4913775 (1990-04-01), Langley et al.
patent: 5176796 (1993-01-01), Ine et al.
patent: 5256252 (1993-10-01), Sarkar et al.
Y. Irie et al., "Enymatic Pitch Control in Papermaking System", 1990 Papermakers Conference, pp. 1-10.
K. Gibson, "Applications of Lipase Enzymes in Mech Pulp Production", 1991 Pulping Conference, pp. 1-6.
Kwon et al., Chem. Abs. No. 234795t, vol. 107, No. 25, p. 631 (1987).
Awaji Haruo
Fujita Yuko
Sharyou Masaki
Shimoto Hidesato
Agris Cheryl H.
Czaja Donald E.
Nguyen Dean T.
Novo Nordisk A S
Zelson Steve T.
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