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author:

杨琳 (杨琳.) [1] | 傅红 (傅红.) [2] | 肖飞燕 (肖飞燕.) [3] | 袁慧君 (袁慧君.) [4]

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CQVIP PKU CSCD

Abstract:

采用Agilent112-88A7 HP-88毛细管色谱柱的气相色谱和Avatar 370傅里叶转换红外光谱相结合的方法,对质子转移膜式电化学氢化制备的低反式脂肪酸的大豆油脂进行分析,其中气相色谱法中各脂肪酸的检出限为3.2~11.4μg/mL,相对标准偏差为0.30%~1.45%,试验表明两种方法对反式脂肪酸的定量结果一致;经过6 h的电化学氢化反应,当氢化大豆油脂的碘价由原料油的130.04 g I2/100 g下降到88.86g I2/100 g时,亚麻酸9c,12c,15cC18∶3质量分数由6.84%下降到0.28%,硬脂酸C18∶0质量分数由4.36%上升到10.44%,产品中反式脂肪酸质量分数为8.62%,主要是7.15%的9tC18∶1,0.74%的9t,12tC18∶2和0.36%的9t,12t,15tC18∶3。

Keyword:

反式脂肪酸 大豆油脂 气相色谱 电化学氢化 红外光谱

Community:

  • [ 1 ] 福建省海洋环境和渔业资源监测中心,福州350003
  • [ 2 ] 福州大学生物科学与工程学院,福州350108

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Source :

中国粮油学报

ISSN: 1003-0174

Year: 2010

Issue: 3

Page: 115-118

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 2

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