摘要
采用同时蒸馏萃取(SDE)结合气相色谱-质谱联用技术(GC-MS)分析小米糠及其膳食纤维中挥发性成分,共检测到了77种挥发性成分,包含有24种醛、11种酸、9种醇、6种酮、11种含苯衍生物、12种碳氢化合物和4种其他物质。小米糠及其膳食纤维中的挥发性成分有24种成分相同,差别较大。己醛、壬醛、(E,E)-2,4-癸二烯醛、(Z)-9,17-十八碳二烯醛、十六酸为小米糠主要挥发性成分,3-糠醛、十六酸、(Z,Z)-9,12-十八二烯酸和1-甲基萘为小米糠膳食纤维主要挥发性成分,小米糠膳食纤维采用酸碱提取和超微粉碎制备会导致酸、碳氢、醛等成分大量减少,会增加含苯衍生物等成分含量。
Volatile compounds of millet bran and its dietary fiber were extracted by simultaneous distillation extraction（SDE）and gas chromatography-mass spectrometry（GC-MS）.The results showed that a total of 77 compounds were identified,including 24 aldehydes,11acids,9alcohols,6ketones,11 benzene derivatives,12 hydrocarbons,and 4others.There were obvious difference in volatile compounds of millet bran and its dietary fiber,only 24 same compounds were detected.Hexanal,nonanal,（E,E）-2,4-decadienal,（Z）-9,17-octadecadienal and hexadecanoic acid were dominant volatile compounds in millet bran.3-furaldehyde,hexadecanoic acid,（Z,Z）-9,12-octadecadienoic acid and 1-methyl-naphthalene were dominant volatile compounds in dietary fiber from millet bran.Preparation of dietary fiber of millet bran by acid base extraction and ultrafine grinding could lead to a marked loss of acids,hydrocarbons and aldehydes,and a increase of benzene derivatives.
出处
《粮食与饲料工业》
CAS
2016年第8期33-36,共4页
Cereal & Feed Industry
基金
现代农业产业技术体系建设专项资金资助项目(CARS-07-12.5-A16)
河北省渤海粮仓项目(HBBHLC-08)
