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1.
Chinese Traditional Patent Medicine ; (12)1992.
Article in Chinese | WPRIM | ID: wpr-579595

ABSTRACT

AIM: To aim to seek the best operation conditions of the inorganic ceramic membrane in the separation of effective matters from the homogenate of earthworm. METHODS: The homogenate flux was adopted as index,to select the membrane material,filter pressure、homogenate temperature and concentration. RESULTS: The experiment showed that the filter flux had a significant positive correlation with pressure difference and liquid temperature,and negative correlation with liquid concentration. CONCLUSION: In the separation of earthworm homogenate,0.2 ?m Al_2O_3 and 50 nm ZrO_2 film pipe were respectively selected as primary and secondary separating unit on the condition of 0.15 mPa pressure,50 ℃ and 33.%(w/w) homogenate concentration.

2.
Chinese Traditional Patent Medicine ; (12)1992.
Article in Chinese | WPRIM | ID: wpr-577425

ABSTRACT

AIM: The aim of this investigation was to confirm the best operation conditions in the membrane separation of protein from the homogenate of red earthworm, Eisenia faefida. METHODS: Ultrafiltration membrane of fresh red earthworm with the cut-off of 10 000 was used as the target process, with the homogenate flux as index, the best value of operation parameters such as pressure、 temperature, surface rotation speed and feed concentration were fixed on. RESULTS: (1) The best suitable operation conditions were 0.25 MPa, 30?C , 200 r/min, pH=6.7, 33.3% (w:w) concentration and not a bit of NaCl. (2) The molecular weight distribution of protein in the homogenate of red earthworm mainly lay between 50 000~100 000. CONCLUSION: The obtained experimental results will provide pilot scale test with data support.

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