| 释义 |
Definition of vanillin in English: vanillinnounvəˈnɪlɪn mass nounChemistry A fragrant compound which is the essential constituent of vanilla. Alternative name: 3-methoxy-4-hydroxybenzaldehyde; chemical formula: CH₃OC₆H₃(OH)CHO Example sentencesExamples - The compound responsible for this distinctive, complex perfume is vanillin, contained in thousands of pinpoint seeds in the seed pods of a particular orchid plant.
- After this time the surface of the fruit will be covered in crystals of glucose and vanillin and the fruits themselves have become black from oxidization but are still flexible.
- Medieval linens show the presence of vanillin in chemical tests, but the linen in the Dead Sea scrolls and other very old linens do not.
- Organic texts often cite flavor chemicals such as vanillin from vanilla as examples of naturally occurring organic chemicals that we encounter every day.
- The best pods are dark brown or black, rather wrinkled and flexible, with a light coating of white crystals of aromatic vanillin.
Origin Mid 19th century; from vanilla + -in1. Definition of vanillin in US English: vanillinnoun Chemistry A fragrant compound which is the essential constituent of vanilla. Alternative name: 3-methoxy-4-hydroxybenzaldehyde; chemical formula: CH₃OC₆H₃(OH)CHO Example sentencesExamples - After this time the surface of the fruit will be covered in crystals of glucose and vanillin and the fruits themselves have become black from oxidization but are still flexible.
- The compound responsible for this distinctive, complex perfume is vanillin, contained in thousands of pinpoint seeds in the seed pods of a particular orchid plant.
- Organic texts often cite flavor chemicals such as vanillin from vanilla as examples of naturally occurring organic chemicals that we encounter every day.
- The best pods are dark brown or black, rather wrinkled and flexible, with a light coating of white crystals of aromatic vanillin.
- Medieval linens show the presence of vanillin in chemical tests, but the linen in the Dead Sea scrolls and other very old linens do not.
Origin Mid 19th century; from vanilla + -in. |