酶法提取铁皮石斛多糖工艺优化及对挥发性成分的影响研究

被引:18
作者
杨岩 [1 ]
李利君 [1 ,2 ,3 ]
吴妙灵 [1 ]
张珍珍 [1 ]
冷晓冬 [1 ]
倪辉 [1 ,2 ,3 ]
机构
[1] 集美大学食品与生物工程学院
[2] 福建省高校食品微生物与酶工程技术研究中心
[3] 厦门市食品与生物工程技术研究中心
关键词
铁皮石斛; α-L-鼠李糖苷酶; 多糖; 气质联用; 挥发性成分;
D O I
暂无
中图分类号
O657.63 [质谱分析]; TQ464.1 [碳水化合物、糖(醣)及脂类];
学科分类号
070302 [分析化学]; 100705 [微生物与生化药学];
摘要
铁皮石斛具有重要的药用价值,但其资源有限,因此对其充分开发和利用具有重要的意义。本文利用α-L-鼠李糖苷酶辅助提取铁皮石斛多糖,通过对酶解温度、酶解时间及加酶量三个因素进行优化,提高铁皮石斛多糖提取率;结果显示,在酶解温度为40℃、酶解时间为1 h、加酶量为2.5%时,多糖提取率为38.4%,而不加酶处理多糖提取率仅为21.7%,酶法处理大大增加了铁皮石斛的多糖提取率。同时,运用顶空固相微萃取技术结合气相色谱质谱联用仪(HS-SPME-GC-MS)分析比较α-L-鼠李糖苷酶对铁皮石斛挥发性成分的影响;GC-MS分析表明,铁皮石斛加酶处理前后共发现31种挥发性成分,主要成分均为己醛、1-辛烯-3-醇、异薄荷醇和3-辛烯-2-酮,并且醛类化合物在加酶处理前后的样品中相对含量均最高,且加酶处理后产生6种新的挥发性成分。该研究结果表明α-L-鼠李糖苷酶的使用可显著增加对铁皮石斛多糖提取率,并为铁皮石斛挥发性成分的研究和开发利用提供一定的参考依据。
引用
收藏
页码:274 / 280+216 +216
页数:8
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