pH
3.6928643
5.6958956
6.4969473
7.6989886
[6][5][3][4][2]
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由表1可以看出,H+溶度越高,β-胡萝卜素的残存率越低。但是在液晶中β-胡萝卜素的残存率受其影响最小。在pH3.6时,残存率为92%,而微乳液中和油溶液中分别为86%和43%。说明用液晶来包封β-胡萝卜素,极大的提高了它的耐酸性。
综合上述影响因素可以看出,光是影响β-胡萝卜素液晶中β-胡萝卜素稳定性的主要因素,β-胡萝卜素最好避光保存。3
结 论
非离子表面活性剂EL-35/丁酸乙酯/水的溶致液晶制备简单, 具有良好的耐热、耐酸等稳定性。 用该载体来包裹β-胡萝卜素,不仅解决了β-胡萝卜素在应用中的溶解性问题,而且明显提高了β-胡萝卜素的稳定性。 因此用其作为食品行业中的β-胡萝卜素载体具有广泛的开发应用前景。
参考文献:
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SCHULAR P J, LERNAER P M, KUEHNE D L. Improving chemical
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