Nutrition and Plant Chemistry Flashcards
What are the 2 categories of CHO
Structural
Non structural
Which category of CHO is more important energy source
Structural
What varies the microbial digestion of cell wall of plant
Plant species
Stage of growth
Type of cell wall constituents
Composition of cell wall
What are the constitute of cell wall
Non starch polysaccharides
- cellulose hemicellulose pectin
Proteins
Phenolics - lignin
H2O
Minerals
What is lignin
Non CHO monomer
How is lignin linked to digestibility
Lignin decreases digestibility
When proteins or CHO bound to lignin
What stage of plant growth contains most lignin
Mature
What are storage CHO example
Fructan
Starch
Fructan
Major storage CHO in temperate plants
Soluble to h2o
WCS examples
Glucose
Fructose
Sucrose
Fructan
Factors affecting CHO storage
Genetic Growth state Season Part of plant Time of day Environment
Season impact on NSC
Spring
Growth up
NSC down
Summer
Growth down
NSC up
Time of day on NSC
Photosynthetic activity
Temperature and light
Time of day
Environmental factors affecting NSC
Temp - up then NSC down
Light - up then NSC up
Water - down then NSC up
Fertiliser - up then NSC down
Cutting - up then NSC down
Look at sheet for nutrition terms abbreviations and definitions
It’s on the wall
