In this ppt file, I have shown a simple overview of phytonutrient, its health benefits, the reason for increasing its level in the plant, ways of improving and finally future perspectives with reference.

1. Regulating Phytonutrient Levels in Plants
(Modifying Plant Metabolism
for
Human Health)
Md. Nazrul Islam
Roll: 1280

2. What are Phytonutrients?
• certain organic chemical components of plants
that are thought to promote human health.
• Also known as:
– functional metabolites,
– phytochemicals, and
– nutraceuticals

3. Phytonutrient Rich Plants

4. Phytonutrient Classifiaction
Phytochemicals under research can be classified as follows:
1. carotenoids and
2. polyphenols, which include
– phenolic acids,
– flavonoids, and
– stilbenes/lignans.
• Flavonoids can be further divided into groups, such as
– anthocyanins,
– flavones,
– flavanones,
– isoflavones, and
– Flavanols.
catechin
epicatechin
anthocyanidin

5. (1) Red foods containing lycopene are involved
in maintaining prostate health;
(2) Yellow-green vegetables containing lutein
and zeaxanthin prevent age-related macular
degeneration;
Health Benefit of Carotenoid & Flavonoids

6. Health Benefit of Carotenoid & Flavonoids
3) Red-purple foods containing anthocyanins,
are very powerful antioxidants;
4) Tomatoes and tomato based products having
lycopene reduces the risk of chronic diseases
such as cancer and cardiovascular diseases.

7. Why Improving Phytonutrient Level?
(1) to increase the
efficiency of the
industrial extraction of
these compounds,
(2) to provide an array of
new and attractive
colors to our diet.

8. Why the improvement of
phytonutrient level is important?
(3) to improve and diversify the diet in populations
of developing countries,
Why Improving Phytonutrient Level?

9. Strategies to Increase & Diversify the
Phytonutrient Level
(1) transgenic modulation of structural genes
involved in its biosynthesis,
(2) transgenic modulation of genes encoding
transcription factors affecting its metabolic
pathway, &
(3) mutations (spontaneous or induced) in
structural or regulatory genes

10. Engineering Phytonutrient Synthesis Pathway
Erwinia uredovora

11. Outstanding Metabolic Engineering
A B
A) Rugular Rice B) Golden Rice

12. What does Future Hold?
• More clinical in vivo trials are needed.
• There is also a need to formulate appropriate
directives for recommended daily allowance for
each metabolite
• Positioning phytonutrient
consumption behavior at the
pharma level rather than
nutraceuticals.

13. Summary at a Glance
1. Phytonutrients
2. Health benefits
3. Reasons of improving phytonutrients
4. Ways of improving, &
5. Future perspectives

14. Recent Advances in Plant Biotechnology, Ara Kirakosyan and Peter B. Kaufman
Reference: