【摘要】 为优化叶黄素的提取工艺,考察叶黄素渗漉超声强化提取工艺中的提取时间(A)、叶黄素粉末质量(B)、无水乙醇体积(C)、超声时间(D)、四个主要因素。结果显示:溶剂体积和原料处理量是主要影响因素,而提取时间和超声时间影响相对较小:提取时间60min,叶黄素粉末质量0.0500g,无水乙醇体积90ml,超声时间2min,此提取条件为最佳。对于叶黄素保藏的稳定性,通过正交实考察谷物保护下,金属Ca2+对叶黄素在谷物中的保存影响最小的,而pH作用最大,三者综合影响最少的工艺条件为Ca2+0.7×106,EDTANa23.5×10-6,pH4.8。更多还原

【Abstract】 The xanthophyl had been studied. as a natural pigment. The orthogonal test design was used to test the main factors of percolation process, including time for extraction(A), quality of xanthophyl powder(B), volume of absolute alcohol(C) and tune for ultrasonic(D).As a result that the volume and the quality had a great effect on the extraction of the pigment, and time had a less effect, the best technologic condition was 0.0500g of lutein powder is extractived in 90ml alcohol for 60min, including ultrasonic for 2min. Through the different preserved condition: metallic ion, pH, oxidation inhibitors, the xanthophyl changes in cereals had been analyzed; the orthogonal test results showed that the metallic ion Ca2+ had a great effect on the stability of the pigment, and pH had the smallest one, next is the EDTA - Na2, the best technologic condition was Ca2+ 0.7 × 10-6, EDTANa2 3.5 × 10-6, pH4.8.更多还原