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| Exploitation and demonstration of novel and key technology of accurate and moderate processing of soybean oil |
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| KeyWord:soybean oil accurate and moderate processing key technology |
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| Abstract: |
| With “producing more and good oils” as aim，the novel and key technology of accurate and moderate processing of soybean oil was developed independently，including quality detection and control of raw soybean，soybean shelling-enzymatic inactivation by instantaneous high pressure and hot-humid，dienzyme degumming/super degumming coupled with long-time deacidification without water washing，two-step bleaching using low activity decolorant，and low-temperature and short-time deodorization with two-stage trapping reflux. By the organic integration of these key technologies，a 6 000 t/d soybean production line was established for accurate and moderate processing. Production practice results showed that compared with traditional processing，the refining yield of the novel technology increased by above 1.5%，the consumptions of solvent，steam and electricity per ton reduced by 7.7%，14% and 5% respectively，additionally，the dosages of decolorant and water decreased by 38% and 73% respectively，and the content of trans fatty acids was below 0.3%，whereas more than 90% of VE and phytosterol were preserved without the addition of antioxidants，and the product met the national standard of first-grade soybean oil. |
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