Preparation of polysulfone microfiltration membrane for the fractionation of coconut oil and protein

Date

5-1989

Degree

Bachelor of Science in Agricultural Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Ernesto J Del Rosario

Abstract

PEREZ, RONELITO J., College of Agriculture - College of Arts and Sciences, University of the Philippines at Los Banos, May 19, 1989. Preparation of Polysulfone Microfiltration Membranes for the Fractionation of Coconut Oil and Protein.

Adviser: Dr. Ernesto J. del Rosario

Four sets of asymmetric polysulfone (PS) membranes, containing 9.0, 10.0, 12.5 and 15.0% (w/w) PS were prepared using N,N7dimethylacetamide (DMAc) and polyvinyl pyrrolidone (10% by weight of PS) as solvent and additive, respectively. All membrane sets were characterized in terms of thickness, steady state water flux, permeate flux, fouling and molecular weight (MW) cut:off. Suitable membranes were used to fractionate the oil and protein in coconut milk.

Membrane thickness and steady state water flux were found to increase and decrease, respectively, as the PS concentration was increased. Membranes containing 15% PS had an average thickness of 67 ±9 um, while those containing 9% PS had a maximal average steady state water 2 2 flux of (231.4±0.2)10 L/m hr. Membranes with 9.0 and 10.0% PS had the highest MW cut-off (>66 KD) and the highest permeate flux.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1989 A13 P47

Document Type

Thesis

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