总迁移量测试橄榄油提取次数的探究

Exploration on the extraction times for olive oil overall migration

中文关键词:  橄榄油总迁移量  完全提取  不完全提取

英文关键词:olive oil overall migration  complete extraction  incomplete extraction

中文摘要:

      目的 探究试样吸收橄榄油是否完全提取对橄榄油总迁移量测试结果的影响。方法 以橄榄油为食品模拟物, 迁移实验后的试样分别由正戊烷(或正戊烷:无水乙醇(95:5, V:V))、乙醚各提取1次和正戊烷(或正戊烷+无水乙醇(95:5, V:V))提取1次、乙醚提取3次, 对总迁移量进行测试。结果 试样A、B、C和D经乙醚提取1次的总迁移量测试结果分别为<3.0、<3.0、3.7、<3.0 mg/dm2, 乙醚提取3次的结果分别为6.1、6.7、9.2、4.1 mg/dm2。对于吸收橄榄油较多的质地疏松的材质, 乙醚提取1次的橄榄油总迁移量明显低于乙醚提取3次的橄榄油总迁移量。结论 不同的基体材质对橄榄油的吸收程度不同, 进行橄榄油总迁移量测试时须保证试样吸收橄榄油的完全提取, 以获得准确的测试结果。

英文摘要:

      Objective To explore the influence of whether the olive oil absorbed by the sample is completely extracted on the test results of the total olive oil migration. Methods Olive oil was used as food simulant. After the migration experiment, the samples were extracted by n-pentane (or n-pentane + anhydrous ethanol (95:5, V:V) and diethyl ether for one time respectively, and extracted with n-pentane (or n-pentane + absolute ethanol (95:5, V:V)) for one time and diethyl ether for 3 times, and the total migration was tested. Results The total migration test results of sample A, B, C, and D after extraction with diethyl ether for one time were <3.0, <3.0, 3.7, <3.0 mg/dm2 respectively, and the results of extraction with diethyl ether for three times were 6.1, 6.7, 9.2, 4.1 mg/dm2 respectively. For materials with loose texture that absorb more olive oil, the total migration amount of olive oil extracted by diethyl ether for one time was significantly lower than the total migration amount of olive oil extracted by diethyl ether for three times. Conclusion Different substrate materials have different absorption levels of olive oil. When testing the total migration of olive oil, it is necessary to ensure that the sample absorbs the olive oil completely to obtain accurate test results.