In the most detailed study
to date on the nutritional value of hydroponic produce, Plant Research
Technologies Inc., an independent analytical laboratory in San Jose,
California, reports dramatic increases in both the vitamin and mineral
content compared to field grown produce.
Tomatoes (Patio Pride)
demonstrated a mean increase of 50 percent in vitamin and mineral
content. Of the 14 values tested, the hydroponics tomatoes showed
increases in five and modest decreases of 25 to 30 percent in three.
Sweet peppers (Gypsy) showed a mean increase of 150 percent - increases
in nine of the 14 values tested and equal to soil-grown in the remaining
five. The sweet peppers tested up to 300 percent higher in vitamins
B2 and B3. A literature search including USDA, EPA and FDA publications,
plus reports from university and private industry sources on the
nutritional content of soil-grown crops was used in the study
Nutritional analysis included
vitamins A, B1 (thiamin), B2 (riboflavin), B3 (niacin), B6 (pyridoxine),
C and E. The plant analysis included nitrogen, sulfur, phosphorous,
potassium, magnesium, calcium, sodium, iron, aluminum, manganese,
copper, boron and zinc.
The tomatoes were grown
in an Aquafarm system and the peppers in an AeroFlo system both
using hydroponic nutrients. The hydroponic produce was also tested
for heavy metals and chemical residues on the EPA's priority list.
None were detected.
from: News Clip - Breslau |
