Fiber Entrapment of Naringinase from Penicillium sp. and Application to Fruit Juice Debittering

概要

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Naringinase from Penicillium sp. was immobilized on cellulose triacetate by the fiber entrapment method. Although the optimum pH (3.7) and optimum temperature (55℃) of the fiber-entrapped enzyme were similar to those of the native form, the immobilized enzyme had better heat stabiligy. Kinetic studies showed that the immobilized enzyme had higher K_m values than its native form. When this immobilized naringinase was successively used in a column reactor for the hydrolysis of p-nitrophenyl α-L-rhamnoside or naringin in a simulated fruit juice system or grapefruit juice, the enzyme column could be operated with satisfactory stability. In addition, when the natural grapefrait juice was recycled through the column reactor, no column blocking or filtering action of the catalyst bed was observed.
公益社団法人日本生物工学会の論文
1989-03-25