gene lester, ph.d. u.s.d.a. agricultural research service ... · conclusions yexposure to...
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Loss of Turger10
Loss of Turger
o
0
ne fr
om 0
-10
es d
eclin -20
Deg
ree
40
-30Dark Light
-50
-40
Days Storage at 4oC
0 2 4 6 8 1050
Plant &Human Benefits of:Plant &Human Benefits of:Vitamin C (ascorbic acid) ( )
Plant scavenges reactivePlant – scavenges reactive oxygen species in Ps-II
Human – supports the immune system & scavenges ROSsystem & scavenges ROS
Ascorbic Acid10
Ascorbic Acid
8
DarkLight
ry w
t.)
6
g/ 1
00g
d
4
(mg
2
0
Days Storage at 4oC
0 2 4 6 8 100
Pant & Human Benefits of:Pant & Human Benefits of:Vitamin B9 (Folate) ( )
Plant – remethylates RuBP in Calvin CycleCalvin Cycle
Human – remethylateshomocysteine to methioninehomocysteine to methionine
Plant & Human Benefits of:Plant & Human Benefits of:Vitamin K1 (phylloquinone)Vitamin K1 (phylloquinone)
Plant – electron carrier in Ps-I
Human – blood vessels, diabetes & bone health.
60
Phylloquinone - vit. K50 Dark
Light
y w
t.)
40
ug/ g
dry 30
(u
10
20
0
10
DaysStorage at 4oC
0 2 4 6 8 100
Plant & Human Benefits of:Plant & Human Benefits of:CarotenoidsCarotenoids
Plants– light electron collector in Ps-IIPs II
Humans- age related blindness & skin cancerskin cancer
50
Lutein & Zeaxanthin40
DarkLight
dry
wt.)
30
g/ 1
00g
d
20
(mg
10
0
Days Storage at 4oC
0 2 4 6 8 100
Plant & Human Benefits of:Plant & Human Benefits of:Vitamin EVitamin E
(alpha tocopherol)
Plants electron transfer in Ps IIPlants – electron transfer in Ps-II
Human– powerful antioxidant
40
α-tocopherol - Vit. E
30
DarkLight
dry
wt.)
30
g/ 1
00g
d
20
(mg
10
0
Days Storage at 4oC
0 2 4 6 8 100
Total Antioxidants
20Dark Total Antioxidants
wt.) 15
Light
./g d
ry w
ox e
quiv
.
10
(trol
o
5
0
Days Storage at 4oC
0 2 4 6 8 100