Biosynthesis of Benzylic Derivatives in the Fermentation Broth of the Edible Mushroom, <i>Ischnoderma resinosum</i>
作者:Purni C. K. Wickramasinghe、John P. Munafo
DOI:10.1021/acs.jafc.9b07218
日期:2020.2.26
a series of benzylic derivatives was elucidated in the fermentation broth of the edible mushroom Ischnoderma resinosum (P. Karst). Twenty-six hydroxy- and methoxy- benzylic derivatives were screened by gas chromatography-mass spectrometry (GC-MS) of which 13 were detected in the culture media. Results from the isotope incubation studies showed the transformation of both benzyl alcohol and benzoic acid
利用同位素培养研究,在食用菌Ischnoderma resinosum(P. Karst)的发酵液中阐明了导致一系列苄基衍生物的生物合成途径。通过气相色谱-质谱法(GC-MS)筛选了26种羟基和甲氧基苄基衍生物,在培养基中检测到13种。同位素孵育研究的结果表明,苯甲醇和苯甲酸均转化为苯甲醛。然后通过羟基化和随后的4-C位置甲基化将苯甲醛转化为4-甲氧基苯甲醛。然后将所得的4-甲氧基苯甲醛在3-C位置羟基化,然后甲基化成3,4-二甲氧基苯甲醛。基于这些发现,提出了一种新的代谢方案,用于生物合成I中的苄基衍生物。提出了resinosum。利用生物合成途径的知识从4-羟基-3-甲氧基苯甲酸(香草酸)生产4-羟基-3-甲氧基苯甲醛(香草醛)。这是第一个阐明苄基衍生物的生物合成途径和从树脂I.产生香草醛的报告。