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The pH effects on cleaning of coconut milk depositsfrom batch pasteurizing process |
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| รหัสดีโอไอ | |
| Creator | 1. Phanida Saikhwan 2. Nattaporn Jumwan 3. Pisan Thungsiabyuan 4. woranee paengjuntuek 5. Harnpon Phungrassami 6. Phairat Usubharatana |
| Title | The pH effects on cleaning of coconut milk depositsfrom batch pasteurizing process |
| Publisher | Faculty of Engineering, Khon Kaen Univeristy |
| Publication Year | 2554 |
| Journal Title | KKU Engineering Journal |
| Journal Vol. | 38 |
| Journal No. | 1 |
| Page no. | 73-82 |
| Keyword | Fouling Cleaning Coconut milk Fluid dynamic gauging (FDG) |
| ISSN | 0125-8273 |
| Abstract | In this paper, the effects of pH on the cleaning of a model coconut milk foulant found in batch pasteurization process were studied. The model coconut milk foulants were soaked in NaOH solution at pH range of 7-12. Swelling rate and swelling ratio increase slightly with pH at pH < 10 and increasing pH beyond pH 10 resulted in a significant rise of both swelling rate and swelling ratio. The pH effects observed here have been reported by literature in the case of milk foulants. Strength studies were performed on coconut milk foulants under 3 conditions: (i) no soaking, (ii) soaking in distilled water (pH 7) and soaking in NaOH solution (pH 12) where maximum swelling ratio was observed. It was found that soaking had weakened the strength of foulants but the effect was not significant. The shear stress observed to remove the foulants under the 3 conditions were in the range of 345-472 Pa. |
