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Effect of surface coating using wax extracted from cabbage leaf on water vapor permeance of fresh lime |
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| รหัสดีโอไอ | |
| Title | Effect of surface coating using wax extracted from cabbage leaf on water vapor permeance of fresh lime |
| Creator | Nittaya Phungam |
| Contributor | Ubon Ratchathani University |
| Publisher | Mahasarakham University |
| Publication Year | 2559 |
| Keyword | water vapor permeance, coating, cabbage leaf wax extracted, water loss, lime |
| Abstract | This study extracted wax from cabbage leaf through the Soxhlet extraction method using ethanol liquid as an organic solvent at 90?C for 8 hours. The extracted wax was later dissolved with ethanol solvent to prepare surface coating material which was subsequently used to coat on the surface of fresh limes to study effective water vapor permeance (WVP). The results were compared with limes coated with chitosan solution and non-coated limes, as the control. Results showed that the average WVP value (1.4 ?mol/s/m2/Pa) of limes coated with the extract was comparable with that of limes coated with chitosan (1.5 ?mol/s/m2/Pa). Both values were lower than the WVP of the control (3 ?mol/s/m2/Pa). The surface coating increased resistance to water vapor loss from the limes which is a major cause of weight loss. The fresh appearance of limes coated with the extracted wax was similar to those coated with chitosan. However, wrinkles were observed on the surface of non-coated limes. Experimental results highlight that wax extracted from the cabbage leaves can decrease water vapor permeance and quality changes of limes. |
