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Health Promot Perspect. 2012;2(2): 244-250.
doi: 10.5681/hpp.2012.030
PMID: 24688941
PMCID: PMC3963635
  Abstract View: 1059
  PDF Download: 611

Original Research

Nitrate Determination of Vegetables in Varzeghan City, North-western Iran

Parviz Nowrouz, Hassan Taghipour*, Saeed Dastgiri, Yousef Bafandeh, Kazem Hashemimajd

Abstract

Background: Vegetables play an important role in human nutrition. Nitrate content is a signifi-cant quality criterion to determine characteristic of vegetables. About 80% of nitrate intake in human is from vegetables and fruits. High dietary intake of nitrate is seen as an undesirable be-cause of its association with gastric cancer and infantile methemoglobinemia. Varzeghan, North¬western Iran is one of the cities with high Age-standardized incidence rates (ASR) of gastric can¬cer in Iran. Currently, in Varzeghan there is no available and accurate information describing ni¬trate concentration as one of the important risk factors of vegetables for human consumption. Methods: In this cross sectional study totally 11 types of vegetables (cabbage, lettuce, spinach, parsley, coriander, dill, leek, fenugreek, tarragon, fumitory and mint) from several different green¬grocery of Varzeghan were collected in spring (April) and autumn (November and December) 2011 and their nitrate contents were analyzed. Results: Mean nitrate contents at the above noted fresh vegetables were 161, 781, 83, 707, 441, 501, 1702, 684, 805, 772 and 191 mg NO3-kg-1 respectively. In none of the 11 fresh vegetables nitrate content were not more than established limitations. Conclusion: Nitrate concentrations were below of others reported at different countries. The mean concentration of nitrate at all vegetables in autumn was higher than in spring significantly.
Keywords: Nitrate, Vegetables, Nutrition, Iran
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Submitted: 28 Apr 2012
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