Vanillin,4-hydroxy-3-methoxybenzaldehyde,is a white crystalline solid,which melts at 81 degrees Celsius. Vanilla planifola is an orchid which produces seed pods from which vanilla extracts are obtained; these extracts contain nearly 200 different molecules,of which vanillin is the most important,and most abundant,making up 98% of the eventual vanilla extract. Vanillin itself was first isolated from vanilla pods by Nicholas-Theodore Gobley in 1858 (though he thought that its formula was C10H6O2,not C8H8O2). The biosynthetic pathway starts with phenylalanine | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Degginger, Phil |
Taille de l’image : | 11000 px × 9000 px |
Model Release : | Non requis |
Property Release : | Non requis |
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