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Tricin and Tricin 4'-O-(Threo-β-Guaiacylglyceryl) Ether Contents of Rice Hull (Oryza sativa L.) with Heat Treatment and Germination
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 Title & Authors
Tricin and Tricin 4'-O-(Threo-β-Guaiacylglyceryl) Ether Contents of Rice Hull (Oryza sativa L.) with Heat Treatment and Germination
Yoon, Nara; Jang, Gwi Yeong; Lee, Yoon Jeong; Li, Meishan; Kim, Min Young; Kim, Hyun Young; Lee, Junsoo; Jeong, Heon Sang;
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This study was conducted to evaluate the effects of heat treatment and germination on tricin and tricin 4'-O-(threo--guaiacylglyceryl) ether (TTGE) formation from rice hull (Oryza sativa L.). Heat treatments were conducted at for 1~5 h. Germination periods were 1~6 days at . Germinated rough rice extracts were classified as non-filtrated, filtrated, and residue after filtration. For heat treatment, the highest contents of tricin and TTGE were 253.12 and at after 1 h, respectively. For germination, the highest contents of tricin and TTGE in rice hull were 118.20 and after 2 days, respectively. In the germinated rough rice extract treatment, the highest contents of tricin and TTGE were 361.76 and , respectively, in residue after filtration of germinated rice extract for 6 days. Therefore, the optimum conditions for tricin and TTGE formation were heat treatment at for 1 h, germination for 2 days, and addition of residue after filtration of germinated rough rice extract for 6 days.
rice hull;tricin;tricin 4'-O-(threo--guaiacylglyceryl) ether;heat treatment;germination;
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