The use of ultrafiltration and ion exchange processes for syrup production from pineapple mill juice | |
| Author | Jiraporn Kijsipongse |
| Call Number | AIT Thesis no. AE-92-21 |
| Subject(s) | Ultrafiltration Food industry and trade |
| Note | A thesis submitted in partial fulfillment of the requirements for the Degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | A study of syrup production from pineapple wastes by ultrafiltration and ion exchange process was conducted. Types of pectinase enzyme were investigated t o improve flux rate of ultrafiltration process (UF ) . Performance of various resin types of ion exchanger a nd effects of processing parameters on generation and regeneration rate were studied. In enzyme pretreatment, Pectinex Ultra SP-L at dosage of 100 ppm gave the highest flux rate at 88.4 l/m2/hr in UF process by using tubular membrane with molecular weight cut off 18,000 Da l tons. In ion exchange process, selection of resin was conducted at f l ow rate of 30 ml /min which contact time was 10 min and bed volume of resin was 300 ml . Three types of styrene resin of each ion exchanger were compared. Alimentech was selected as suitable cation resin which gave operation volume of 6750 ml a nd regeneration volume of 2 100 ml. For a n ion resin , Dowex 66 was chosen for suitable type due to its operation and regeneration of 1800 ml. The investigation of processing parameters was studied on Dowex resin for manufacturer feasibility. Th e operating flow rate for ion exchanger was optimized at 2 0 ml / min for maximum yield. In regeneration of cation resin, 140 0 ml of 5% HCl solution was required at f l ow rate of 10 ml/min, whereas 1800 ml of 496 NaOH solution was needed for anion resin at 30 ml/min. The concentrated pineapple syrup which composes of fructose, glucose and sucrose is much clear, neutral and trace amount of ions still remains. |
| Year | 1992 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Athapol Noomhorm; |
| Examination Committee(s) | Jindal, Vinod Kumar ;Illangantileke, Sarath G. |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1992 |