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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Franzke C, Noske H J, Poth B

Nahrung. 1975;19(7):595-602. doi: 10.1002/food.19750190710.

Studies on rape-seed oil have shown that the determination of oxypolymers by means of the method according to Rost (determination of fatty acids insoluble in petroleum ether) yields unsatisfactory results. By way of contrast, the gravimetric determination (after isolation of the polymers via the non-urea adduct fatty acid methyl esters and thin-layer chromatographic separation), as proposed by the authors, permits to obtain results of good reproducibility and to determine thermopolymers and oxypolymers separately. 2. During the refining of rape-seed oil, it was observed that its polymer content decreased considerably on bleaching, and increased on deodorizing.

对菜籽油的研究表明，采用罗斯特方法（测定不溶于石油醚的脂肪酸）测定氧化聚合物，结果并不理想。相比之下，作者提出的重量法测定（通过非尿素加合物脂肪酸甲酯分离聚合物并进行薄层色谱分离），能够获得重现性良好的结果，并且可以分别测定热聚合物和氧化聚合物。2. 在菜籽油精炼过程中，观察到其聚合物含量在漂白时大幅下降，在脱臭时增加。

Franzke C, Noske H J, Poth B

Nahrung. 1975;19(7):595-602. doi: 10.1002/food.19750190710.

Studies on rape-seed oil have shown that the determination of oxypolymers by means of the method according to Rost (determination of fatty acids insoluble in petroleum ether) yields unsatisfactory results. By way of contrast, the gravimetric determination (after isolation of the polymers via the non-urea adduct fatty acid methyl esters and thin-layer chromatographic separation), as proposed by the authors, permits to obtain results of good reproducibility and to determine thermopolymers and oxypolymers separately. 2. During the refining of rape-seed oil, it was observed that its polymer content decreased considerably on bleaching, and increased on deodorizing.

对菜籽油的研究表明，采用罗斯特方法（测定不溶于石油醚的脂肪酸）测定氧化聚合物，结果并不理想。相比之下，作者提出的重量法测定（通过非尿素加合物脂肪酸甲酯分离聚合物并进行薄层色谱分离），能够获得重现性良好的结果，并且可以分别测定热聚合物和氧化聚合物。2. 在菜籽油精炼过程中，观察到其聚合物含量在漂白时大幅下降，在脱臭时增加。