Overview | coniferylaldehyde, also known as ferulic aldehyde, 4-hydroxy-3-methoxycinnamaldehyde, the molecular formula is C10H10O3, which is not soluble in water. The pure product is light yellow powder, which exists in the lignin of coniferous plant tree, which is the intermediate of biosynthesis lignin; prostaglandin synthesis inhibitors; Chemical synthesis methods are mainly derived from the condensation of vanillin and acetaldehyde or the decomposition of lignin with acid or alkali. The method of synthesizing pine aldehyde by microbial conversion of eugenol has not been reported. |
Research History | as early as, people began to study the degradation of eugenol microorganisms. The Japanese scholar Tadasa found a strain of Corynebacterium sp. It has the ability to degrade eugenol to produce pine alcohol, ferulic acid and vanillin; In 1996, France Rabenhorst used Pseudomonas. The batch culture method was used to obtain 3.22g/L of pineanol, 3.25g/L of vanillic acid and 5.8g/L of ferulic acid. In 1999, the Japanese Furukawa and other fungi using pure yellow silk mold (byssochlamysulvav107) using eugenol as a substrate for conversion to obtain 21.7g/L Pine alcohol, and a small amount of pine aldehyde, formation of ferulic acid and vanillic acid. In, Japanese Furukawa et al. screened Pseudomonas fluorescens (Pseudomonas monjluorescense118), which can produce 6.1g/L ferulic acid from eugenol, A strain of Bacillus cereus pn24 was screened out by India Kadakol et al. After the conversion with eugenol, the intermediate metabolites of guaiacol, vanillin, vanillic acid and protocatechuic acid could be detected in the conversion system, iran Ashengroph, etc. were isolated from the food resin Pseudomonas (PseudomonasresinovoransSPR1) strain, capable of transforming eugenol to obtain 0.24g/L of pine aldehyde; Geobacillussp.AY946034) strain, the bacteria with the degradation of eugenol to produce pine aldehyde, ferulic acid, vanillin, vanillic acid ability. The metabolites involved in the degradation of eugenol in these studies include pine alcohol, Pine aldehyde, ferulic acid, vanillin, vanillic acid, protocatechuic acid and so on, and most of the studies focused on the analysis of the metabolic pathway of eugenol degradation by bacteria, there are relatively few reports on fungi. |