以四甲氧基硅烷(TMOS)和一定比例的甲基三甲氧基硅烷(MTMS)、二甲基二甲氧基硅烷(DMDMS)、三甲基甲氧基硅烷(TMMS)为硅源,采用酸催化的溶胶-凝胶法包埋南极假丝酵母脂肪酶.比较了有机-无机杂化介孔材料和纯硅基介孔材料固定化南极假丝酵母脂肪酶的酶活力和保留活力,同时还比较了有机-无机杂化介孔材料固定化南极假丝酵母脂肪酶和游离南极假丝酵母脂肪酶的pH、温度以及储存稳定性.结果表明,有机-无机杂化介孔材料固定化南极假丝酵母脂肪酶具有比纯硅基介孔材料固定化南极假丝酵母脂肪酶更高的酶活力和保留活力.其中三取代的有机-无机杂化介孔材料固定化南极假丝酵母脂肪酶的酶活力最高,其保留活力可达到84.9％.此外与游离的南极假丝酵母脂肪酶相比,有机-无机杂化介孔材料固定化南极假丝酵母脂肪酶具有更好的pH、温度和储存稳定性,以及更宽的pH值和温度的酶活力范围.
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