NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effect of Elevated Carbon Dioxide on Nutritional Quality of TomatoTomato (Lycopersicon esculentum Mill.) cvs. Red Robin (RR) and Reimann Philipp (RP) were grown hydroponically for 105 d with a 12 h photoperiod, 26 C/22 C thermoperiod, and 500 micromol/ sq m/s PPF at either 400, 1200, 5000, or 10,000 micromol/mol (0.04, 0.12, 0.50, 1.00 kPa) CO2. Harvested fruits were analyzed for proximate composition, total dietary fiber, nitrate, and elemental composition. No trends were apparent with regard to CO2 effects on proximate composition, with fruit from all treatments and both cultivars averiging 18.9 % protein, 3.6 % fat, 10.2 % ash, and 67.2 % carbohydrate. In comparison, average values for field-grown fruit are 16.6 % protein, 3.8 % fat, 8.1 % ash, and 71.5 % carbohydrate (Duke and Atchely, 1986). Total dietary fiber was highest at 10,000 micromol/mol (28.4 % and 22.6 % for RR and RP) and lowest at 1000 micromol/mol (18.2 % and 15.9 % for RR and RP), but showed no overall trend in response to CO2. Nitrate values ranged from 0.19 % to 0.35 % and showed no trend with regard to CO2. K, Mg, and P concentrations showed no trend in response to CO2, but Ca levels increased from 198 and 956 ppm in RR and RP at 400 micromol/mol, to 2537 and 2825 ppm at 10,000 micromol/mol. This increase in Ca caused an increase in fruit Ca/P ratios from 0.07 and 0.37 for RR and RP at 400 micromol/molto 0.99 and 1.23 for RR and RP at 10,000 micromol/mol suggesting that more dietary Ca should be available from high CO2-grown fruit.
Document ID
19990014245
Acquisition Source
Kennedy Space Center
Document Type
Reprint (Version printed in journal)
Authors
Wheeler, R. M.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Mackowiak, C. L.
(Dynamac Corp. Cocoa Beach, FL United States)
Stutte, G. W.
(Dynamac Corp. Cocoa Beach, FL United States)
Yorio, N. C.
(Dynamac Corp. Cocoa Beach, FL United States)
Berry, W. L.
(California Univ. Los Angeles, CA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1997
Publication Information
Publication: Advances in Space Research
Publisher: Elsevier Science Publishers Ltd.
Volume: 20
Issue: 10
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available