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PREPARATION AND PHYSICOCHEMICAL CHARACTERIZATION OF ESSENTIAL OILS-LOADED CARBOXYMETHYLCELLULOSE/XANTHAN GUM BLEND SHEETS |
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| รหัสดีโอไอ | |
| Title | PREPARATION AND PHYSICOCHEMICAL CHARACTERIZATION OF ESSENTIAL OILS-LOADED CARBOXYMETHYLCELLULOSE/XANTHAN GUM BLEND SHEETS |
| Creator | Atikan Srichoosilp |
| Contributor | Pattara Thiraphibundet |
| Publisher | Chulalongkorn University |
| Publication Year | 2559 |
| Keyword | Plastic films, Essences and essential oils |
| Abstract | Novel flavor as an essential oil film was successfully fabricated by solvent casting method. Carboxymethyl cellulose and xanthan gum were film forming polymers incorporating with 4 kinds of essential oils which extracted from lemongrass, kaffir lime leaf, galangal and lime peel. The SEM images, IR spectra and TGA thermogram clearly confirmed the presence of essential oils in the network of film-forming polymers. The water solubility and loading capacity were about 90-95% and 15-26%, respectively. The physicochemical properties of the essential oil films kept in vacuum and non-vacuum seal conditions at 40ºC for 120 days were investigated. The results showed that the properties of essential oil films in non-vacuum seal condition were lower than those in vacuum seal condition but not significantly different. Moreover, the properties of essential oil films which exposed to 70% RH at ambient temperature for 30 days were determined. In this condition, most properties of essential oil films were more rapidly changed in comparison to seal condition. These can be confirmed that the film forming polymers are not able to protect the degradation of essential oil from oxygen and light. |
| URL Website | cuir.car.chula.ac.th |
