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猪胃肠道食糜中黄曲霉毒素B1和玉米赤霉烯酮检测方法的改进及其在霉菌毒素吸附剂吸附效果评价中的应用

DOI: 10.3969/j.issn.1006-267x.2015.06.019

Keywords: 黄曲霉毒素B1,玉米赤霉烯酮,霉菌毒素吸附剂,猪食糜上清液,吸附效果

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Abstract:

本试验旨在建立测定猪胃和小肠食糜上清液中黄曲霉毒素B1和玉米赤霉烯酮含量的高效液相色谱(HPLC)法,并利用该方法评价霉菌毒素吸附剂分别在不同介质中对黄曲霉毒素B1和玉米赤霉烯酮的吸附效果。为消除食糜上清液中复杂组分对目标毒素检测的干扰,本试验对毒素提取方法、液相色谱的检测波长设置和流动相组成进行了优化。利用单浓度体外吸附试验评价了4种霉菌毒素吸附剂分别在水、猪胃和小肠食糜上清液介质中对黄曲霉毒素B1和玉米赤霉烯酮的吸附效果。结果表明:1)反应上清液经过1次正己烷和3次二氯甲烷提取,荧光激发波长和发射波长在0~9min和9~14min分别设定为360、440nm和235、418nm,乙腈/水流动相中乙腈比例控制在40%~60%时,本试验采用的HPLC仪对1.00~10000.00ng/mL黄曲霉毒素B1和20.00~5000.00ng/mL玉米赤霉烯酮具有良好的分离定量效果,线性相关系数分别为1.000和0.999;检出限分别为0.16和2.00ng/mL;黄曲霉毒素B1和玉米赤霉烯酮日内精密度相对标准差分别为2.37%、4.50%;日间精密度相对标准差分别为2.74%、8.84%。黄曲霉毒素B1和玉米赤霉烯酮标准添加回收率分别为89.1%~110.3%、98.7%~104.1%。2)自制霉菌毒素吸附剂样品P3、M3和市场采购的霉菌毒素吸附剂产品Y1、Y2在猪胃食糜上清液介质中对黄曲霉毒素B1的吸附率依次为72.10%、84.18%、83.17%和66.01%;在猪小肠食糜上清液介质中的吸附率依次为78.15%、88.08%、88.12%和67.34%。4种吸附剂在胃食糜上清液介质中对玉米赤霉烯酮的吸附率依次为85.35%、18.41%、16.20%和12.98%;在猪小肠食糜上清液介质中的吸附率分别为39.75%、25.15%、21.40%和24.85%。综上,本试验建立的HPLC法可同时测定猪胃和小肠食糜上清液中的黄曲霉毒素B1和玉米赤霉烯酮,检测限和检测范围满足我国《猪饲料卫生标准》的要求。该方法可用于评价霉菌毒素吸附剂猪生理体液条件下对黄曲霉毒素B1和玉米赤霉烯酮的吸附效果。

References

[1]  Council for Agricultural Science and Technology.Mycotoxins:risks in plant,animal and human systems[M].Wisconsin:Council for Agricultural Science and Technology,2003:1-191.
[2]  DEVREESE M,DE BACKER P,CROUBEL S.Different methods to counteract mycotoxin production and its impact on animal health[J].Vlaams Diergeneeskundig Tijdschrift,2013,82(4):181-190.
[3]  齐德生.蒙脱石改性前后对AFB1和营养成分的吸附及对AFB1的脱毒效果[D].博士学位论文.武汉:华中农业大学,2003:75-85.
[4]  PHILLIPS T D.Dietary clay in the chemoprevention of aflatoxin-induced disease[J].Toxicological Sciences,1999,52(Suppl.1):118-126.
[5]  LEMKE S L,OTTINGER S E,MAYURA K,et al.Development of a multi-tiered approach to the in-vitro prescreening of clay-based enterosorbents[J].Animal Feed Science and Technology,2001,93(1):17-29.
[6]  AVANTAGGIATO G,HAVENAAR R,VISCONTI A.Assessing the zearalenone-binding activity of adsorbent materials during passage through a dynamic in vitro gastrointestinal model[J].Food and Chemical Toxicology,2003,41(10):1283-1290.
[7]  KOLOSOVA A,STROKA J.Evaluation of the effect of mycotoxin binders in animal feed on the analytical performance of standardised methods for the determination of mycotoxins in feed[J].Food Additives & Contaminants Part A:Chemistry Analysis Control Exposure & Risk Assessment,2009,29(12):1959-1971.
[8]  ANKLAM E,STROKA J,BOENKE A.Acceptance of analytical methods for implementation of EU legislation with a focus on mycotoxins[J].Food Control,2002,13(3):173-183.
[9]  SPRYNSKYY M,GADZALA-KOPCIUCH R,NOWAK K,et al.Removal of zearalenone toxin from synthetics gastric and body fluids using talc and diatomite:a batch kinetic study[J].Colloids and Surfaces B:Biointerfaces,2012,94:7-14.
[10]  STROKA J,HOLST C,ANKLAM E,et al.Immunoaffinity column cleanup with liquid chromatography using post-column bromination for determination of aflatoxin B1 in cattle feed:collaborative study[J].Journal of AOAC International,2003,86(6):1179-1186.
[11]  ARRANZ I,MISCHKE C,STROKA J,et al.Liquid chromatographic method for the quantification of zearalenone in baby food and animal feed:interlaboratory study[J].Journal of AOAC International,2007,90(6):1598-1609.
[12]  刘媛婷.霉菌毒素吸附剂对黄曲霉毒素B1吸附特性及效果研究[D].硕士学位论文.雅安:四川农业大学,2011:38-43.

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