AN IMPROVED OLIVE OIL OVERALL MIGRATION TEST FOR PLASTICS USING FISCHER,KARL TITRATION

被引：4

作者：

CASTLE, L

HEDGCOCK, SE

KWIATKOWSKA, CA

SHARMAN, M

SMITH, ID

机构：

[1] Ministry of Agriculture, Fisheries and Food, Food Science Laboratory, Colney, Norwich, NR4 7UQ, Norwich Research Park

[2] Unilever Research, Colworth Laboratory, Sharnbrook, Bedford, MK44 1LQ, Colworth House

来源：

FOOD ADDITIVES AND CONTAMINANTS | 1992年 / 9卷 / 01期

关键词：

CONDITIONING; WATER LOSS; OVERALL MIGRATION; FOOD CONTACT PLASTICS; PACKAGING; COOKWARE;

D O I：

10.1080/02652039209374043

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Karl Fischer titration has been used to eliminate the need to humidity-condition food contact plastics under test for overall migration into olive oil. The water content of the oil is measured before and after the migration test. This direct measure of the loss (or uptake) of water by the test plastic is then used in calculations of the overall migration. The use of Karl Fischer titration gives faster analysis with reduced labour input. The time savings varied from a few days to several weeks depending on the type of plastic. Karl Fischer titration is particularly useful in the high temperature testing of polar plastics where incomplete humidity conditioning can lead to erroneous results. The technique should be equally valuable when employing sunflower oil or the triglyceride HB307 in place of olive oil.

引用

页码：11 / 17

页数：7

共 14 条

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