白花曼陀罗悬浮培养细胞转化对羟基苯甲醛生成天麻素

目的研究天麻素在植物细胞的转化合成。方法利用白花曼陀罗细胞悬浮培养转化外源对羟基苯甲醛合成天麻素，并应用多种色谱技术进行分离纯化，根据转化产物的理化性质和光谱数据分析鉴定结构。结果利用白花曼陀罗细胞成功地将对羟基苯甲醛转化为天麻素(II)，并得到由对羟基苯甲醛生成天麻素的转化中间体对羟基苯甲醇(I)。另外，从细胞培养物中分离得到β-D-吡喃阿洛酮糖(III)和5-正丁氧基-β-D-吡喃阿洛酮糖(IV)两种化合物。结论白花曼陀罗细胞悬浮培养能转化对羟基苯甲醛合成天麻素。

The production of gastrodin through biotransformation of p-hydroxybenzaldehyde by cell suspension culture of Datura stramonium

AIM: To investigate the production of p-hydroxymethylphenol-beta-D-glucoside (gastrodin) through biotransformation by plant cell suspension cultures. METHODS: Using cell suspension cultures of Datura stramonium to convert the exogenous p-hydroxybenzaldehyde into gastrodin was conducted and the converted compounds were separated with a combination of multi-chromatography. Their chemical structures were determined on the basis of spectral analysis and chemical evidence. RESULTS: The conversion procedure of p-hydroxybenzaldehyde into gastrodin by Datura stramonium cell suspension cultures was established. The synthesized gastrodin (II) was isolated from the fermental liquor and identified by spectral analysis. At the same time, the p-hydroxybenzyl alcohol (I) converted through biotransformation of p-hydroxybenzaldehyde by cell suspension cultures of Datura stramonium was also isolated and identified. Two compounds were also isolated from the cell cultures and they were identified as beta-D-furanoallulose (III) and n-butyloxystyryl-beta-D-pyranoallulose (IV). CONCLUSION: Datura stramonium grown in suspension cultures can convert exogenous p-hydroxybenzaldehyde into the corresponding gastrodin.