(A STUDY SEPARATION OF STARCH AND MALTOSE USING MEMBRANE POLY(METHYLMETHACRYLATE) – CHITOSAN)

• Main Author: Triadhi, Untung
• Format: Final Project
• Language: Indonesia
• Subjects: Kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/35366
• Institution: Institut Teknologi Bandung

Maltose is the carbohydrate widely used in food industry. Maltose could be obtained from hydrolysis of starch. Separation of starch and maltose has been developed considerably. A vast differences in size between starch and maltose could serve as a basis for separation. Polymer based membranes were prepared by phase inversion technique using formic acid as solvent. The membranes consist of poly(methylmethacrylate) and chitosan having a ratio of 20% : 2% (w/w). Rejection of such membranes towards starch and maltose was found to be in a range of 92 – 97% and 0 – 9%, respectively at 3 bar operational pressure. In addition, casting solution having the same composition was precipitated by immersing in cold water (at 10 0C). The obtained membranes were then characterized with infrared spectrophotometer for analysis of functional groups, Scanning Electron Microscope (SEM) for morphological analysis of membrane, and contact angle measurement to determine the membrane surface hydrophilicity.