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Studies on method for aqueous extraction of soybean oil

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Abstract

Water extraction of soybean oil was studied to find the optimal conditions for recovery of oil preenriched protein and for aqueous extraction of soybean oil. Orthogonal tests were employed in the procedures of oil pre-enrichment and aqueous extraction. Soybeans were crushed to pass a 40 mesh sieve, soaked under the optimum conditions (solid/water=1/5(w/v), 40°C, pH 10, 3 h) and water-ground to 100 mesh, stirred in 65 °C water for 20 min, and centrifuged at 1400 g to separate oil pre-enriched protein. The protein yield was 17.8 g from 100 g soybeans, which contained 62.8% oil. The oil yield was 69.0%. Optimum conditions for the aqueous extraction procedure were: solid-to-water ratio 1∶2, pH 9.0, time 30 min, stirring in boiling water bath, stationary time 10 min, centrifuge at 3600 g for 10 min. Experimental values showed that the oil yield after aqueous extraction from oil pre-enriched protein reached 88.3%, so the total oil extraction rate was 60.8%.

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References

  • Adler-Nissen, Jens Lorenz. 1978. Preparation of Polypeption from Soy Protein. U. K. Patent, 4100024.

  • AOAC, 1990. Official Methods of Analysis, 15th ed., Association of Official Analytical Chemists, Washington, DC.

    Google Scholar 

  • Lawhon, J. T., Manak, L. J., Rhee, K. C. et al. 1981. Combining aqueous extraction and membrane isolation techniques to recover protein and oil from soybean.J Food Sci,46: 912–918.

    Article  Google Scholar 

  • Rhee, K. C, 1972. Simultaneous recovery of protein and oil from raw peanuts in an aqueous system.J Food Sci,37: 90–93.

    Article  Google Scholar 

  • Sugarman, N., 1956. Process for Extraction of Oil and Protein Simultaneously from Oil-bearing Material. U. S. Patent, 2762820.

  • Wang, Z, Xu, S. Y., Lin, L. et al., 1994. Study on the enzymatic process of simultaneously preparing soy oil and soy protein hydrolysate from full fat soybean.J. Wuxi Institute of Light Industry,13(3): 179–190 (in Chinese, with English abstract).

    Google Scholar 

  • WLII (Wuxi Light Industry Institute), 1983. Food Analysis, Light Industry Publishing House, Beijing (in Chinese).

    Google Scholar 

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Authors and Affiliations

  1. College of Biological & Environmental Engineering, Zhejiang University of Technology, 310014, Hongzhou, China

    Qian Jun-qing

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  1. Qian Jun-qing
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Jun-qing, Q. Studies on method for aqueous extraction of soybean oil. J. Zhejiang Univ. Sci. A 2, 209–213 (2001). https://doi.org/10.1631/jzus.2001.0209

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  • DOI: https://doi.org/10.1631/jzus.2001.0209

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