Abstract
A lot of commercially extracted crude soybean oil was water degummed with and without a phosphoric acid pretreatment. The degummed oils were bleached and then deacidified-deodorized in a single step to yield physically (steam) refined soybean salad oils. Their flavor and oxidative stability were compared to caustic-refined oils given otherwise identical processing treatments. Physically refined oils without a phosphoric acid pretreatment were of poor initial quality compared to those given the phosphoric acid pretreatment. However, caustic- and steam-refined oils processed with the phosphoric pretreatment were of comparable quality.
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List, G.R., Mounts, T.L., Warner, K. et al. Steam-Refined soybean oil: I. effect of refining and degumming methods on oil quality. J Am Oil Chem Soc 55, 277–279 (1978). https://doi.org/10.1007/BF02676942
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DOI: https://doi.org/10.1007/BF02676942