|
Processing of red palm oil by modified acid degumming method |
|---|---|
| รหัสดีโอไอ | |
| Creator | Jeerapong Rakprasoot |
| Title | Processing of red palm oil by modified acid degumming method |
| Contributor | Autchara Tiampakdee, Patcharin Raviyan |
| Publisher | Mahasarakham University |
| Publication Year | 2566 |
| Journal Title | Food Agricultural Sciences and Technology (FAST) |
| Journal Vol. | 9 |
| Journal No. | 2 |
| Page no. | No. 11-22 |
| Keyword | Crude palm oil, acid degumming, red palm oil |
| URL Website | https://ph02.tci-thaijo.org/index.php/stej/index |
| Website title | Food Agricultural Sciences and Technology (FAST) |
| ISSN | 2822-1001 (Print), 2822-101X (Online) |
| Abstract | Red palm oil (RPO) is a high carotenoids product that resulted from crude palm oil (CPO). The conventional process of RPO includes degumming, neutralization, deodorization, and fractionation processes. This research aimed to develop the simple and economical acid degumming method for processing of red palm oil. 85% phosphoric and 99.5% citric acid were used and the factors used in the study were acid (phosphoric:citric acid 0.06:0.04,0.08:0.02,0.10:0 % w/w), temperature (90, 100, 110 ฐC) and time (20, 25, 30 minutes). The sample was stirred at 200 rpm. In addition, the neutralization process was further studied. The results indicated that the optimal condition for degumming was 90 ฐC for 20 minutes and the optimum ratio of acid to separate the gum is 0.06% phosphoric acid (w/w) and 0.04% citric acid (w/w) citric acid. The sedimented gum was separated from the oil by washing the oil with water at 60 ฐC. After degumming the oil contained 82.70ฑ6.49% yield carotenoids, 3.50ฑ0.55% free fatty acid (FFA), 3.01ฑ0.73 umol Trolox eq/g DPPH-free radical scavenging activities and 4.43ฑ0.05 umol Trolox eq/g FRAP-free radical scavenging activities. The free fatty acids and phosphorus content were separated by NaOH at 80 ฐC for 30 min with constant stirring. Soap from the saponification reaction and excess NaOH were washed out with water at 60 ฐC. After neutralization, the oil contained 0.46ฑ0.05% fatty acids, 637.60ฑ8.64 mg/kg carotenoids, 74.48ฑ9.39% oil yield, ? 0.1 mg/kg iron, the copper and phosphorus contents were not detected. |
