Solids Extraction of Cod Frame and Effects on Ultrafiltration of the Aqueous Extract
1994; Wiley; Volume: 59; Issue: 4 Linguagem: Inglês
10.1111/j.1365-2621.1994.tb08131.x
ISSN1750-3841
AutoresMaria Teresa Rodríguez‐Estrada, Seungjun Chung, Pavinee Chinachoti,
Tópico(s)Bone Tissue Engineering Materials
ResumoABSTRACT Grinding, pH adjustment, heat treatment and centrifugation were studied to recover solids from ground cod frames and to apply ultrafiltration (UF) to the resulting aqueous phase. Early heat treatment (90°C/20 min) dissolved collagen into aqueous phase resulting in a very low UF flux. A pH adjustment to 4.5 after grinding (∼0.32 cm die), with no heat resulted in efficient separation after centrifuging. UF of the aqueous phase showed an increase in initial flux (23 L/hr m 2 ). However, when the same aqueous material was heated and then centrifuged (1–2% solids removed), UF flux was further increased to 46 L/hr m 2 and this process gave highest solids recovery (90%).
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