caa a22 4500 465795803 CHVBK 20180323112037.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF02539692 doi (NATIONALLICENCE)springer-10.1007/BF02539692 Effect of soybean pretreatment on the color quality of soybean oil [Elektronische Daten] [Yan-Hwa Chu, Woan-Meei Lin] Color reversion in soybean oil can be prevented by reducting the enzyme activity of soybeans before cracking and flaking. Soybean oil extracted from steamed, intact soybeans (18% moisture) had lower Rm (max. red) values in RBD oil, higher amounts of γ-tocopherol, plus its isomers, in both crude and RBD oil, and also higher amounts of hydratable phosphatides in crude oil than those in the oils from the same beans without steam treatment. For soybean pretreatments, a toasting process is less effective than the steaming process for the inhibition of color reversion of soybean oil. To prevent the occurrence of color reversion in RBD soybean oil, the amount of γ-tocopherol and γ-TED (5-[tocopheryloxy]-γ-tocopherol) should be above 550 ppm in crude oil. AOCS Press, 1990 Chu Yan-Hwa Food Industry Research and Development Institute, P.O. Box 246, 30099, Hsinchu, Taiwan, Republic of China aut Lin Woan-Meei Food Industry Research and Development Institute, P.O. Box 246, 30099, Hsinchu, Taiwan, Republic of China aut Journal of the American Oil Chemists' Society Springer-Verlag 67/6(1990-06-01), 368-372 0003-021X 67:6<368 1990 67 11746 https://doi.org/10.1007/BF02539692 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02539692 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chu Yan-Hwa Food Industry Research and Development Institute, P.O. Box 246, 30099, Hsinchu, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Lin Woan-Meei Food Industry Research and Development Institute, P.O. Box 246, 30099, Hsinchu, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Journal of the American Oil Chemists' Society Springer-Verlag 67/6(1990-06-01), 368-372 0003-021X 67:6<368 1990 67 11746 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer