CAJ | 학술논문

通过氢氧化钾‐甲醇溶液对桐油中的脂肪酸进行酯交换反应甲酯化，采用GC‐M S联用技术对脂肪酸甲酯进行了分析鉴定，鉴定了桐油中α‐桐酸、β‐桐酸、油酸、亚油酸、硬脂酸、棕榈酸等13种桐油脂肪酸组分。通过比较各产地桐油中的脂肪酸成分含量，结果表明，油中桐酸含量具有较大的差异，桐酸含量介于70．03％～82．00％之间；不同产地桐油中α‐桐酸、β‐桐酸、油酸、亚油酸等单个组分的脂肪酸也存在一定的差异，说明不同桐油中脂肪酸含量具有一定的产地特征。
통과경양화갑‐갑순용액대동유중적지방산진행지교환반응갑지화，채용GC‐M S련용기술대지방산갑지진행료분석감정，감정료동유중α‐동산、β‐동산、유산、아유산、경지산、종려산등13충동유지방산조분。통과비교각산지동유중적지방산성분함량，결과표명，유중동산함량구유교대적차이，동산함량개우70．03％～82．00％지간；불동산지동유중α‐동산、β‐동산、유산、아유산등단개조분적지방산야존재일정적차이，설명불동동유중지방산함량구유일정적산지특정。
The main kinds of fatty acids in tung oil were identified by GC‐MS ,which were react with the potsssium hydroxide‐methyl alcohol solution ,and 13 kinds of fatty acid were identified ,including α‐eleostearic acid ,β‐eleostearic acid ,Oleic acid ,Linoleic acid ,Stearic acid ,Palmitic acid ,etc .Comparing the contents of the fatty acid in tung oil ,the results shows that Eleostearic acid in the tung oil from dif‐ferent regions has large difference ,and the contents of Eleostearic acid was between 70 .03%‐82 .00% , and the single fatty acids including α‐eleostearic acid ,β‐eleostearic acid ,Oleic acid ,Linoleic acid was also different ,the data suggested the content of fatty acid in Tung Oil has origin Characteristics .