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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 I_2/100 g下降到88.86g I_2/100 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.
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中国粮油学报
ISSN: 1003-0174
CN: 11-2864/TS
Year: 2010
Issue: 3
Volume: 25
Page: 115-118
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 4
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