Application of Bionic Technology to Speciation Analysis and Bioavailability Assessment of Nickel in Transgenic Soybean
CHEN Li-hui1, LI Shun-xing1, 2*, MOU Yang1, ZHENG Feng-ying1, 2, LI Yan-cai1, 2, WANG Hui1, ZHENG Na-yan1, XIE He-fang1
1. Department of Chemistry, Minnan Normal University, Zhangzhou 363000, China 2. Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, China
Abstract：The safety of transgenic food has been paid the most attention to by the public and scientists. Trace metal bioavailability could provide information for safety assessment of transgenic food. The critical functional digestion and absorption in the gastrointestinal tract were simulated by bionic gastrointestinal digestion, metabolism of gut microbiota, and bionic biomembrane adsorption with liposome and then used for the pretreatment of transgenic and general soybeans. Ni speciation in the chyme was defined as affinity-liposome and water soluble Ni. Nickel bioavailability was assessed by the content of affinity-liposome Ni. .Water soluble Ni was the main species of nickel complex in the chyme. Nickel bioavailability was 4.1% for transgenic soybean and 3.3% for general soybean, which could be enhanced by gastrointestinal digestion and metabolism of gut microbiota. After transgene, nickel bioavailability was increased 24% but the content of affinity-liposome Ni was 122.3 ng·g-1 for transgenic soybean, just as 36% as that of general soybean.
[1] Herrero M, Ibanez E, Martín-Alvarez J P, et al. Anal. Chem., 2007, 79: 5071. [2] Harrigan G G, Ridley P W, Riordan G S, et al. J. Agric. Food Chem., 2007, 55: 6160. [3] Denkhaus E, Salnikow K. Crit. Rev. in Oncol. Hemat. 2002, 42: 35-56. [4] Lu H T, Shi X L, Costa M, et al. Mol. Cell. Biochem., 2005, 279: 45. [5] Vyskocil A, Senft V, Viau C, et al. Hum. Exp. Toxicol., 1994, 13: 257. [6] WANG Zheng, JING Miao, Lee F S C, et al(王 征, 荆 淼, 黎先春，等). Chem. J. Chinese Universities(高等学校化学学报), 2006, 27(6): 1045. [7] TIE Mei, FANG Yu-zhi, SUN Tie-biao，et al(铁 梅, 方禹之, 孙铁彪，等). Chem. J. Chinese Universities(高等学校化学学报), 2007, 28 (4): 635. [8] Oomen A G, Rompelberg C J, Bruil M A，et al. Arch. Environ. Con. Tox., 2003, 44: 281. [9] Montalto M, D’Onofrio F, Gallo A, et al. Digest. Liver Dis., 2009, 3(Suppl.): 30. [10] LIN Lu-xiu, LI Shun-xing, ZHENG Feng-ying(林路秀, 李顺兴, 郑凤英). Chinese J. of Anal. Chem.(分析化学) 2008, 38(6): 823. [11] Li S X, Lin L X, Zheng F Y. J. Agric. Food Chem.，2011, 59(3): 822. [12] Goodman L A, McNulty P N, Zhao Y，et al. J. Cell Host Microbe.，2009, 6: 279. [13] Gill S R, Pop M, Deboy R T，et al. Science, 2006, 312: 1355.
