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Effects of agriculture production systems on nitrate and nitrite accumulation on baby-leaf salads

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Nitrate and nitrite are widespread contaminants of vegetables, fruits, and
waters. The levels of these compounds are increased as a result of using organic
wastes from chemical industries, domestic wastes, effluents, nitrogenous fertilizers,
and herbicides in agriculture. Therefore, determining the nitrate and nitrite
levels in biological, food, and environmental samples is important to protect
human health and the environment. In this context, we set this study, in which
we report the effect of production system (conventional and organic) on the
accumulation of nitrates and nitrites in fresh baby-leaf samples. The average
levels of the nitrate (NO3-) and nitrite (NO2-) contents in six different babyleaf
salads of a single species (green lettuce, red lettuce, watercress, rucola,
chard, and corn salad) produced in organic and conventional agriculture system
were evaluated. Spectrophotometric analytical method recently published was
validated and used. Nitrates and nitrites were detected in all samples. The
nitrates levels from organic production varied between 1.45 and 6.40 mg/kg
fresh weight (FW), whereas those from conventional production ranged from
10.5 to 45.19 mg/kg FW. The nitrites content was lower than nitrates and ranged
from 0.32 to 1.89 mg/kg FW in organic production system and between
0.14 and 1.41 mg/kg FW in conventional production system. Our results
showed that the nitrate content was dependent on the agricultural production
system, while for nitrites, this dependency was less pronounced.

Keywords
Baby-leaf salads, foodborne toxic incidence,
nitrates, nitrites, production system

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Informasi Detail

Judul Seri

Food Science & Nutrition

No. Panggil

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Penerbit

New York : Wiley Periodicals, Inc.., 2013

Deskripsi Fisik

Food Science & Nutrition 2013; 1(1): 3–7

Bahasa

English

ISBN/ISSN

doi: 10.1002/fsn3.1

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

2013; 1(1)

Subjek

GIZI DAN PANGAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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