Nutritional quality assessment of tomato fruits after exposure to uncoated and citric acid coated cerium oxide nanoparticles, bulk cerium oxide, cerium acetate and citric acid.
Little is known about the effects of surface modification on the interaction of nanoparticles (NPs) with plants. Tomato (Solanum lycopersicum L.) plants were cultivated in potting soil amended with bare and citric acid coated nanoceria (nCeO2,nCeO2+CA), cerium acetate (CeAc), bulk cerium oxide (bCeO2) and citric acid (CA) at 0-500 mg kg-1. Fruits were collected year-round until the harvesting time (210 days). Results showed that nCeO2+CA at 62.5, 250 and 500 mg kg-1reduced dry weight by 54, 57, and 64% and total sugar by 84, 78, and 81%. At 62.5, 125, and 500 mg kg-1nCeO2+CA decreased reducing sugar by 63, 75, and 52%, respectively and at 125 mg kg-1reduced starch by 78%, compared to control. The bCeO2at 250 and 500 mg kg-1, increased reducing sugar by 67 and 58%. In addition, when compared to controls, nCeO2at 500 mg kg-1reduced B (28%), Fe (78%), Mn (33%), and Ca (59%). At 125 mg kg-1decreased Al by 24%; while nCeO2+CA at 125 and 500 mg kg-1increased B by 33%. On the other hand, bCeO2at 62.5 mg kg-1increased Ca (267%), but at 250 mg kg-1reduced Cu (52%), Mn (33%), and Mg (58%). Fruit macromolecules were mainly affected by nCeO2+CA, while nutritional elements by nCeO2; however, all Ce treatments altered, in some way, the nutritional quality of tomato fruit. To our knowledge, this is the first study comparing effects of uncoated and coated nanoceria on tomato fruit quality.
Department of Chemistry, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States.
Ana Cecilia
AC
Barrios
Department of Chemistry, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States.
Illya A
IA
Medina-Velo
Metallurgical and Materials Engineering Department, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States.
Nubia
N
Zuverza-Mena
Department of Biological Sciences, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States.
Osvaldo E
OE
Dominguez
Department of Chemistry, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States.
Jose R
JR
Peralta-Videa
Department of Chemistry, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, United States. Electronic address: jgardea@utep.edu.
Jorge L
JL
Gardea-Torresdey
D000085:Acetates / Q000737:chemistry / Q000494:pharmacology*; D001895:Boron / Q000032:analysis; D002118:Calcium / Q000032:analysis; D002241:Carbohydrates / Q000032:analysis; D002338:Carotenoids / Q000032:analysis / Q000378:metabolism; D002563:Cerium / Q000737:chemistry / Q000494:pharmacology*; D019343:Citric Acid / Q000737:chemistry / Q000494:pharmacology*; D005504:Food Analysis / Q000379:methods; D005638:Fruit / Q000737:chemistry / Q000187:drug effects*; D007501:Iron / Q000032:analysis; D000077276:Lycopene; D018551:Solanum lycopersicum / Q000737:chemistry / Q000187:drug effects*; D008345:Manganese / Q000032:analysis; D053768:Metal Nanoparticles / Q000008:administration & dosage* / Q000737:chemistry; D009753:Nutritive Value; D013213:Starch / Q000032:analysis; D013499:Surface Properties
D000085:Acetates; D002241:Carbohydrates; D019343:Citric Acid; D002563:Cerium; D002338:Carotenoids; D008345:Manganese; C030583:ceric oxide; D013213:Starch; D007501:Iron; D001895:Boron; D000077276:Lycopene; D002118:Calcium
Essential elements; Nanoceria; Nutritional quality; Surface coating; Tomato fruits