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Watering Tomato Plants With Diluted Seawater Boosts Levels Of Antioxidants
Science Daily ^ | 4-29-2008 | American Chemical Society

Posted on 04/29/2008 1:04:35 PM PDT by blam

Watering Tomato Plants With Diluted Seawater Boosts Levels Of Antioxidants

Watering tomato plants with diluted seawater boosts levels of antioxidants, scientists report. (Credit: Courtesy of public-domain-photos.com)

ScienceDaily (Apr. 29, 2008) — Watering tomatoes with diluted seawater can boost their content of disease-fighting antioxidants and may lead to healthier salads, appetizers, and other tomato-based foods, scientists in Italy report.

Besides their use in a variety of ethnic food dishes, tomatoes are one of the most commonly grown home garden vegetables, particularly cherry tomatoes. Scientists have linked tomatoes to several health benefits, including protection against prostate cancer and heart disease. Researchers have known for years that seawater does not stimulate the growth of tomatoes, but scientists know little about its effects on the nutritional content of the vegetables.

In the new study, Riccardo Izzo and colleagues grew cherry tomatoes in both freshwater and in a dilute solution of 12 percent seawater. They found that ripe tomatoes grown in the salty water showed higher levels of vitamin C, vitamin E, dihydrolipoic acid, and chlorogenic acid. All of these substances are antioxidants that appear to fight heart disease, cancer, aging, and other conditions. Using saltwater to irrigate tomato crops also appears to be a promising alternative to freshwater irrigation, especially in the wake of water shortages in some parts of the world, the researchers note.

The article "Irrigation with Diluted Seawater Improves the Nutritional Value of Cherry Tomatoes" is scheduled for the May 14 issue of ACS' Journal of Agricultural and Food Chemistry

Adapted from materials provided by American Chemical Society, via EurekAlert!, a service of AAAS.


TOPICS: News/Current Events
KEYWORDS: diluted; lycopene; plants; seawater; tomato
Ahem, order your super-duper diluted seawater by calling me at Beechwood 45789.
1 posted on 04/29/2008 1:04:36 PM PDT by blam
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To: blam

I fertilize my vegetables with Fish Emulsion. I wonder if the results are the same.


2 posted on 04/29/2008 1:09:10 PM PDT by elizabetty (Voting for McCain is like deciding to cut off your leg because it is stuck in a bear trap.)
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To: blam
Eating Tomatoes 'Keeps You Safe In The Sun'

By Tom Peterkin
The Telegraph (UK)
Last Updated: 7:42AM BST 29/04/2008

Eating five tomatoes a day could help protect against sunburn and premature ageing, new research has revealed. Experts at Manchester and Newcastle Universities found the fruit improved the skin's ability to protect itself against ultra-violet light.

The researchers calculated that the protection offered by eating tomatoes was comparable to applying factor 1.3 sunscreen.

The team is now hoping to carry out more research to find out if eating tomatoes can protect against more severe forms of sun-damage such as skin cancer.

"You don't have to eat an excessive amount of tomatoes to experience the effect, if you are already eating a tomato-based diet with plenty of things like spaghetti and pizza toppings," said Professor Mark Birch-Machin, a dermatology scientist at Newcastle University.

"Eating tomatoes is going to have this benefit in the sun, but it is still important to use conventional methods of protecting yourself against the sun such as sunscreens, shade and clothing."

Researchers studied the skin of 20 people, half of whom were given five tablespoons (55g) of standard tomato paste, the equivalent of five or six cooked tomatoes, with 10g of olive oil. The other half of the sample received just olive oil.

The experiment was carried out over 12 weeks and the group was exposed to ultra-violet light at the beginning and the end of the trial.

The results, presented to the British Society for Investigative Dermatology in Oxford, found that those who had eaten the paste had 33 per cent more protection against sunburn, which can lead to skin cancer.

Ultra-violet light leads to excess production of harmful molecules called 'reactive oxygen species', which can damage skin structures eventually causing wrinkles and skin cancer.

But tomatoes contain a powerful antioxidant called lycopene, which can neutralise these harmful molecules. Lycopene is the bright red pigment found in a number of fruit and vegetables, but is at its most concentrated in tomatoes.

The tomatoes were cooked and made into a paste, because the heating process frees up lycopene.

Analysis of skin samples from both groups also showed that the tomato diet had boosted the skin's procollagen levels, a molecule which gives the skin its structure. Losing procollagen leads to the skin ageing and losing its elasticity.

It was also found that the increased levels of lycopene reduced damage to mitochondrial DNA in the skin. Damage to that particular genetic material is also linked to ageing skin.

3 posted on 04/29/2008 1:09:18 PM PDT by blam (Secure the border and enforce the law)
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To: blam

This is actually good news. Especially for farmers in places where the supply of freshwater is limited and can be supplemented with seawater.


4 posted on 04/29/2008 1:09:27 PM PDT by contemplator (Capitalism gets no Rock Concerts)
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To: blam

Heh. Good one.

Beachwood 4-5789 has a special place in my heart. One night we were perfoming at the enlisted men’s club at Fort Ord, for a bunch of young, very drunk draftees. They told us if a fight broke out, whatever we did, do not stop playing. Well, the fight finally broke out while we were doing Beachwood, and we played it over and over for at least twenty minutes.

Never sang it again after that! Thanks for reminding me.


5 posted on 04/29/2008 1:16:49 PM PDT by EggsAckley
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To: blam

I live 10 minutes from the ocean.

SEAWATER!!! GET YOUR SEAWATER HERE WHILE SUPPLIES LAST!

;)


6 posted on 04/29/2008 1:17:19 PM PDT by Slapshot68
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To: blam

Nothing beats home-grown tomatoes. Nothing.


7 posted on 04/29/2008 1:18:27 PM PDT by Hoffer Rand (0'bambi: the audacity of hype)
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To: Slapshot68

My grandfather put a Smelt under each plant. We had so many tomatoes when I was a kid I thought we were rich. Boy was I wrong.


8 posted on 04/29/2008 1:19:33 PM PDT by massgopguy (I owe everything to George Bailey)
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To: elizabetty

I think s/w fish drink the stuff soooo


9 posted on 04/29/2008 1:24:17 PM PDT by CGASMIA68
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To: blam
I think tomatoes could be a very healthy way to relieve stress.


10 posted on 04/29/2008 1:24:25 PM PDT by Bon mots
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To: blam

This idea is demented. If you do this several years in a row, your soil will eventually not grow anything and the water table will become polluted with one of the most expensive contaminants - - salt.

Something similar happens when you irrigate year after year with hard water. The minerals accumulate in the soil eventually poisoning it.

Organic pollution eventually breaks down over time. Salt will never be anything but salt.


11 posted on 04/29/2008 1:26:45 PM PDT by finnsheep
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To: blam

This idea is demented. If you do this several years in a row, your soil will eventually not grow anything and the water table will become polluted with one of the most expensive contaminants - - salt.

Something similar happens when you irrigate year after year with hard water. The minerals accumulate in the soil eventually poisoning it.

Organic pollution eventually breaks down over time. Salt will never be anything but salt.


12 posted on 04/29/2008 1:26:45 PM PDT by finnsheep
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To: finnsheep

Plant you tomatoes in high salanity soil to begin with and then water with normal water, huh?


13 posted on 04/29/2008 1:31:43 PM PDT by blam (Secure the border and enforce the law)
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To: EggsAckley
Marvelettes Medley Live @ The Apollo
14 posted on 04/29/2008 1:34:43 PM PDT by blam (Secure the border and enforce the law)
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To: finnsheep
If you do this several years in a row, your soil will eventually not grow anything

Exactly what I was thinking. I fertilize with a good high quality, low nitrogen, fertilizer which contains all the trace elements necessary for a healthy plant. I also use prodigious amounts of bone meal.

Fish emulsion is not a balanced fertilizer and has too much nitrogen for tomatoes.

15 posted on 04/29/2008 1:52:33 PM PDT by Banjoguy (Nancy Pelosi is an anti-American traitor.)
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To: elizabetty

Possibly. I imagine the boost they are talking about comes from the trace minerals, and I think fish would have alot of those. Probably better to do it with something off the shelf like fish emulsion than with seawater.


16 posted on 04/29/2008 2:05:43 PM PDT by Free Vulcan (No prisoners. No mercy. Fight back or STFU!!!)
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To: massgopguy

I am willing to give the smelt under the tomato plant a try but would a sardine work? Hard to find smelt right now.


17 posted on 04/29/2008 2:07:15 PM PDT by RummyChick
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To: RummyChick

The oil might act as a preservative.


18 posted on 04/29/2008 2:19:30 PM PDT by massgopguy (I owe everything to George Bailey)
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To: Free Vulcan

What happens to tomato plants watered with water that goes through a water softener first?


19 posted on 04/29/2008 2:49:51 PM PDT by varina davis
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To: blam

Will beat your price for diluted seawater by 50%. Call Jenny at 867-5309...


20 posted on 04/29/2008 2:56:08 PM PDT by Zeppo (Every mighty mild... seventies child... Beats me (Metric - Combat Baby))
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To: blam
Diluted sea water........ The next import business across the fruited plain...

I wonder if the mixture used to make water for salt water aquariums would do the same thing set at a 12% level?

21 posted on 04/29/2008 2:59:34 PM PDT by deport ( -- Cue Spooky Music --)
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To: varina davis

Any kind of water I’ve used, iron water, lime water, softened water, etc., eventually seems to screw up the soil and growth of the plant.

It might still give the boost to the tomatoes they are talking about because of the minerals in it. With all the trace mineral fertilizers out there I myself wouldn’t risk mineraled or salt water destroying the soil.


22 posted on 04/29/2008 3:01:27 PM PDT by Free Vulcan (No prisoners. No mercy. Fight back or STFU!!!)
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To: Zeppo
"Will beat your price for diluted seawater by 50%. Call Jenny at 867-5309..."

We ship for free...anywhere.

23 posted on 04/29/2008 3:15:03 PM PDT by blam (Secure the border and enforce the law)
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To: blam
We ship for free...anywhere.

I'd like to send some to Admunsen-Scott Research Station, please.

24 posted on 04/29/2008 3:19:02 PM PDT by tacticalogic ("Oh bother!" said Pooh, as he chambered his last round.)
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To: tacticalogic

“We ship for free...anywhere. I’d like to send some to Admunsen-Scott Research Station, please.”

I wonder how much Snow Cats are selling for these days? It’s pretty clear these guys are going to have to invest in some additional capital items to fill your request!


25 posted on 04/29/2008 3:32:46 PM PDT by Towed_Jumper (Stephen Hopkins: Founding Father who had Cerebral Palsy.."My hand trembles, my heart does not.")
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To: Hoffer Rand
"Nothing beats home-grown tomatoes."

You GOT that RIGHT....we were eating ours in December, still....they ripen in a cool garage for months...

26 posted on 04/29/2008 3:36:00 PM PDT by goodnesswins (20 is the new 10)
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To: blam; Bender2

I can do better than that. Skip the diluted sea water and watch your tomatoes grow while drinking a pint of Guinness Stout. Much higher in antioxidants.


27 posted on 04/29/2008 3:36:02 PM PDT by big'ol_freeper ("Preach the Gospel always, and when necessary use words". ~ St. Francis of Assisi)
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To: goodnesswins

At some point, that just becomes taunting...


28 posted on 04/29/2008 3:44:00 PM PDT by Hoffer Rand (0'bambi: the audacity of hype)
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To: Hoffer Rand

It’s easy....just hang the plants up in the garage (somewhere it doesn’t freeze) before a freeze happens outside.....


29 posted on 04/29/2008 3:59:14 PM PDT by goodnesswins (20 is the new 10)
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To: blam

We have enough of sea water to irrigate the desert.


30 posted on 04/29/2008 4:00:54 PM PDT by bmwcyle (I always rely on God and Guns in that order)
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To: Hoffer Rand
Nothing beats home-grown tomatoes. Nothing.

Yep.

Ain't nothing better'n home-growed tomaters.

Eat 'em with grits,
Eat 'em with gravy.
Eat 'em with beans,
Pinto and Navy.

31 posted on 04/29/2008 4:21:37 PM PDT by N. Theknow (Kennedys: Can't drive, can't fly, can't ski, can't skipper a boat; but they know what's best for us)
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To: Gabz; Coleus

from April.


32 posted on 06/24/2008 9:11:13 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_________________________Profile updated Friday, May 30, 2008)
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To: blam
5 tomatoes a day, what amount of a lycopene supplement would be equivalent?
33 posted on 06/24/2008 1:48:36 PM PDT by Coleus (Abortion and Physician-assisted Murder (aka-Euthanasia), Don't Democrats just kill ya?)
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