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US6 patents
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US4600692AJul 15, 1986
Immobilized cells for preparing phenylalanine
PURIFICATION ENG48 citations92
US4436813AMar 13, 1984
Immobilized microbial cell composition for making L-aspartic acid
PURIFICATION ENG27 citations92
US4732851AMar 22, 1988
Immobilization of cells with a polyazetidine prepolymer
PURIFICATION ENG18 citations74
US4650755AMar 17, 1987
Immobilizing microbial cells with polyfunctional aziridines
PURIFICATION ENG10 citations74
US4710467ADec 1, 1987
Process for preparing phenylalanine
PURIFICATION ENG10 citations66
US4728611AMar 1, 1988
Production of phenylalanine with immobilized cells
PURIFICATION ENG5 citations63