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04 - Cadre Didactice

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Extracţia antibioticelor<br />

• Separarea prin extracţie L – L a<br />

antibioticelor se face, de regulă, după<br />

separarea masei celulare, dar există şi<br />

procedee care permit extracţia lor din<br />

lichidul de fermentare nefiltrat sau din<br />

biomasă.<br />

• Extractul este purificat ulterior prin<br />

reextracţie, precipitare, cromatografie de<br />

schimb ionic, cristalizare.<br />

Lucian Gavrilă – Tehnici de separare si concentrare in biotehnologii 64

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