Publication: Preparation and properties of protein based thermoplastics from sardine fish waste
| dc.contributor.author | Alias, Siti Amirah | |
| dc.date.accessioned | 2024-01-17T03:22:56Z | |
| dc.date.available | 2024-01-17T03:22:56Z | |
| dc.date.issued | 2020-06-01 | |
| dc.description.abstract | In this study, fish protein thermoplastics (FPT) was prepared and characterized. Three samples, namely mackerel fillet powder (MFP), mackerel by-products powder (MBP) and sardine by-products powder (SBP) were processed into fish powder. It was found that the protein content in all samples, approximately (43% -76%) and SBP was chosen as the material to produced thermoplastic. The result shows that twin screw extruder offers a better and efficient mixing at 120ºC and 100 rpm. The interactions between FPT with additives through chemical modification were explored by changing the parameters such as condition time, stearic acid compositions and glycerol content. It was found that condition the samples at 168 hours increased the tensile strength of the FPT due to hydrogen bonding between that formed between polymer-water-plasticizer. The optimum tensile strength of FPT was shown in sample modified by 25% stearic acid. This is due to carboxylic group of stearic acid that could possibly react with protein in FPT. The process of protein unfolding can be clearly observed in denaturation enthalpy during heating in DSC. The amount of energy to break down the bonding high at 30% stearic acid. The highest elongation at break properties was achieved at 1.4% indicated that glycerol has the ability to increased the chain mobility of FPT and enhance the material’s flexibility. Despite the subtle different methods to incorporate additives and plasticizers in FPT, the preparation and characterization of FPT offers a material with improved mechanical properties and thermal stability which offer a potentially wider range of biodegradable plastic from waste. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/18092 | |
| dc.language.iso | en | |
| dc.title | Preparation and properties of protein based thermoplastics from sardine fish waste | |
| dc.type | Resource Types::text::thesis | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |