Phenolic Compound - Plant Physiology - Lecture Slides, Slides for Physiology. Biju Patnaik University of Technology, Rourkela

Physiology

Description: These are the lecture slides of Plant Physiology. Key important points are: Phenolic Compound, Phenol Group, Hydroxyl Functional Group, Aromatic Ring, Biosynthesis of Phenolics, Shikimic Acid Pathway, Cinnamic Acid, Phenylalanine Ammonia Lyase, Types of Phenolics
Showing pages  1  -  4  of  23
What’s a phenolic compound?
A secondary product that contains a phenol group
- a hydroxyl functional group on an aromatic ring.
OH
Phenolics are a chemically diverse group: many
different properties and functions.
Docsity.com
Biosynthesis of phenolics
Shikimic acid pathway is most common in plants. Converts simple
carbohydrates into aromatic amino acids. Not present in animals.
Docsity.com
Most plant phenolics are derived from cinnamic acid
formed from phenylalanine by phenylalanine ammonia lyase
(PAL) enzyme.
PAL
PAL activity is inducible: fungal infection, low nutrient levels, high light
Docsity.com
Major types of phenolics
1. Simple phenolics - e.g. coumarins
2. Lignin - 2nd most abundant compound in plants
3. Flavonoids - two aromatic rings, 2 pathways
anthocyanins, flavones/flavonols
4. Condensed tannins
polymerized flavonoids
5. Hydrolyzable tannins
made of phenolic acids and sugars
smaller molecules than condensed tannins
Docsity.com
The preview of this document ends here! Please or to read the full document or to download it.
Document information
Embed this document:
Docsity is not optimized for the browser you're using. In order to have a better experience please switch to Google Chrome, Firefox, Internet Explorer 9+ or Safari! Download Google Chrome