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Lipase from Nigella sativa seeds was immobilized by adsorption on Celite 535 from phosphate buffer solutions varying pH values of 5.0–8.0 at 25 °C. Langmuir isotherms described the adsorption equilibria well for lipase adsorption at all pH range. The saturation capacity for adsorption of lipase increased from 14.5 to 24.3 mg g−1 Celite as the adsorption pH was reduced from 8 to 5, but the adsorption...
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