Gooch E G
Dow Corning Corp., Analytical Research Dept, Midland, MI 48640-0995.
J AOAC Int. 1993 May-Jun;76(3):581-3.
Silicone defoamers are used to control foam during the processing of fruit juices. Residual silicones in fruit juices can be separated from the naturally occurring siliceous materials in fruit products and selectively recovered by solvent extraction, after suitable pretreatment. The recovered silicone is measured by atomic absorption spectroscopy. Silicone concentrations as low as about 1 ppm can be measured. The juices are accurately spiked for recovery studies by the addition of silicone dispersed in D-sorbitol.
有机硅消泡剂用于在果汁加工过程中控制泡沫。果汁中的残留有机硅可在经过适当预处理后，从水果产品中天然存在的硅质材料中分离出来，并通过溶剂萃取进行选择性回收。回收的有机硅通过原子吸收光谱法进行测定。可测定低至约1 ppm的有机硅浓度。通过添加分散在D -山梨醇中的有机硅，对果汁进行精确加标以进行回收率研究。
