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ϵ-Poly-l-lysine (ϵ-PL) has been widely used in the food industry as a biological preservative like Nissin and natamycin for many years. However, few studies have focused on the separation and purification of ϵ-PL from fermentation broth. In the present study, a successive process for ϵ-PL separation and purification from fermentation broth was proposed, and two key operation units of solid–liquid...
To develop an efficient strategy for the decoloration of ɛ-poly-l-lysine (ɛ-PL) produced by microbial fermentation with Streptomyces, macroporous resin was firstly investigated on the removal of pigments in ɛ-PL ion exchange eluate here. SX-8 resin was found to be the best through static and dynamic comparison tests, which adsorbed the most pigments and the least ɛ-PL. Under the optimized dynamic...
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