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Efficiency of Fruit Coating Wax from Palm Oil Industry's Wastewater Fat (TH-ENV wax) on Banana Fruits Preservation |
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| รหัสดีโอไอ | |
| Creator | 1. Juthamanee Sangsawang 2. Onanong Phewnil 3. Kasem Chunkao 4. Paiboon Prabuddham 5. Sarunya Khunandilok |
| Title | Efficiency of Fruit Coating Wax from Palm Oil Industry's Wastewater Fat (TH-ENV wax) on Banana Fruits Preservation |
| Publisher | Department of Agriculture |
| Publication Year | 2561 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 36 |
| Journal No. | 3 |
| Page no. | 255-267 |
| Keyword | palm, wastewater, fat, TH-ENV wax, banana ปาล์ม, เสียว, ไขมัน, ไขเคลือบเปลือกผลไม้, กล้วย |
| URL Website | http://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | The objectives of this study were to: (1) observe microstructure of grease in palmoil industry's wastewater, (2) create the processes of separating and cleaning fat from greaseby non-toxic solvent, (3) compare metallic contaminants in cleaned fat, crude fat andwastewater, (4) formulating the fruit coating wax (TH-ENV wax) from cleaned fat and (5) testthe efficiency of TH-ENV wax on weight loss and sweetness increasing in banana. Twentyliters of palm oil industry's wastewater was collected from grease trapping. Microstructureobservation showed that base oil surrounded metallic skeleton in grease molecule,molecular size was 0.8x1.1 ?m2. Crude fat was separated from grease of wastewater bymixing to 5% acetic acid then centrifuged at 3,000 rpm for 15 minutes.. The resultedsuspension can be visually identified into 3 layers, fat layer on top, liquid layer in themiddle and sludge layer at bottom. Fat was collected, cleaned and used as raw material forTH-ENV wax production. Metallic contaminants in the fat decreased after the separating andcleaning processes. TH-ENV wax is a bi-layered composite wax (fat/polysaccharides)composed of fat, Siam weed extracts, Tacca's starch in water (3:1), chitosan and water at30, 5, 10, 5, 50 % v/v respectively. Triton X-100 was added as emulsifier when testing theTH-ENV wax on banana. Results showed that TH-ENV wax coated bananas' weight losswas significantly less than unwaxed bananas on day 1 of storage and its sweetnessincreasing was significantly less at day 5 of storage. |
