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| Production of first-grade soybean oil by deep enzymatic degumming and physical refining |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.230493 |
| KeyWord:deep enzymatic degumming physical refining 3-chloropropanol ester glycidyl ester trans fatty acid |
| FundProject: |
| Author Name | Affiliation | | ZUO Qing1，GAO Ruibin1，CHEN Youjun2，XU Hongchuang3，ZUO Hui4 | ( 1.Jiangsu FAMSUN Oils and Fats Engineering Co. , Ltd. , Yangzhou 225127, Jiangsu, China
2.China Sino-grain Tianmen Oils Storage Co. , Ltd. , Tianmen 431700, Hubei, China
3.Sino-grain Dongguan Oils and Fats Industrial Co. , Ltd. , Dongguan 523147, Guangdong,
China
4.Guangzhou Xinmas Co. , Ltd. , Guangzhou 510890, China) |
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| Abstract: |
| In order to produce high-quality first-grade soybean oil, with crude soybean oil as raw material, first-grade soybean oil was produced using deep enzymatic degumming, pre-decolorization, packed tower and plate tower deodorization, and double catchers processes. For crude soybean oil with phosphorus content of 600-800 mg/kg, PLC, PLA1/PLA2 were used for degumming, low acidic active clay was used for decolorization, packed tower was used for deacidification, and then an 8-layer plate tower was used for deodorizing microcomponent and the deodorization conditions were temperature 230-240 ℃ (adjustable), vacuum degree 100-150 Pa, and time 100 min (adjustable), and double catchers were used to capture distillates with VE content 10%-12% and acid value 40-50 mgKOH/g, and VE content less than 1% and acid value 130-140 mgKOH/g. Using this process, the contents of 3-chloropropanol ester, 2-chloropropanol ester, glycidyl ester and trans fatty acid in first-grade soybean oil were 678.9, 310.3, 860 μg/kg and 0.886%, respectively, and the refining yield increased by about 2%. |
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