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Nguyễn Phương, Phạm Hương Sơn, Hoàng Văn Tuấn, Nguyễn Trịnh Hoàng Anh, Bùi Xuân Phương, Mã Thị Bích Thảo(1), Phạm Tuấn Đạt, Nguyễn Thanh Hảo, Hoàng Thị Hường

Nghiên cứu một số giải pháp kỹ thuật tách pha nhằm hoàn thiện quy trình tách dầu dừa tinh khiết bằng công nghệ không gia nhiệt

A study on non-thermal processing technology for obtaining virgin coconut oil (VCO) using phase separation technique

Khoa học & Công nghệ Việt Nam

2015

11

47-51

1859-4794

In this study, coconut milk was obtained by pressing fresh copra from Cocos Nucifera L. The coconut milk will be extracted by three phase centrifuge. The influencing parameters including diluting the milk, the milk temperature before centrifugation, and centrifugation speed were considered. The result indicates that the specifications of the above phase separation process can directly impact the rate of oil recovery, especially the moisture of oil content. The coconut milk was diluted 1.5 times, adjusted temperature to 45oC, and then passed through centrifuges in three times with different rotation speeds: the first time with 15,000 rpm, 21,000 rpm in the second time, and 24,000 rpm in the third time when coconut oil would be gained. Oil recovery ratio reached 99.92 percent; moisture content of oil reached 0.08 percent. Coconut oil that obtained after three-time centrifugation was removed water by vacuum filtration equipment with vacuum 40 mbar, in 13 minutes, at 50oC. As a result of vacuum filtration, virgin coconut oil (VCO) was obtained with equivalent quality standards of APCC.

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