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Journal articles on the topic 'Nitrate'

Author: Grafiati

Published: 4 June 2021

Last updated: 23 July 2025

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1

Mawaddah, Aida, Roto Roto, and Adhitasari Suratman. "PENGARUH PENAMBAHAN UREA TERHADAP PENINGKATAN PENCEMARAN NITRIT DAN NITRAT DALAM TANAH (Influence of Addition of Urea to Increased Pollution of Nitrite and Nitrate in The Soil)." Jurnal Manusia dan Lingkungan 23, no. 3 (2017): 360. http://dx.doi.org/10.22146/jml.22473.

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ABSTRAKNitrat dan nitrit merupakan sumber nitrogen bagi tanaman. Nitrogen sangat diperlukan tanaman untuk pertumbuhan dan perkembangan. Bentuk-bentuk nitrogen di lingkungan mengalami transformasi sebagai bagian dari siklus nitrogen seperti nitrifikasi dan denitrifikasi. Apabila kadar nitrogen dalam tanah rendah, maka urea digunakan sebagai sumber nitrogen. Perubahan urea menjadi nitrit atau nitrat pada beberapa sampel tanah perlu diketahui. Kadar nitrit dan nitrat yang tinggi dapat meningkatkan pencemaran di dalam tanah. Sampel tanah yang digunakan dalam penelitian ini adalah tanah pasir, tana

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2

Bernardo, Patrícia, Luís Patarata, Jose M. Lorenzo, and Maria João Fraqueza. "Nitrate Is Nitrate: The Status Quo of Using Nitrate through Vegetable Extracts in Meat Products." Foods 10, no. 12 (2021): 3019. http://dx.doi.org/10.3390/foods10123019.

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Nitrate and nitrites are used to give the characteristic color to cured meat products and to preserve them. According to the scientific knowledge available at the moment, these compounds are approved as food additives based on a detailed ponderation between the potential risks and benefits. The controversy over nitrites has increased with the release of an IARC Monograph suggesting an association between colorectal cancer and dietary nitrite in processed meats. The trend in “clean label” products reinforced the concern of consumers about nitrates and nitrites in meat products. This review aims

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3

Mastanjević, Krešimir, Dragan Kovačević, Martina Dančić, and Kristina Habschied. "Levels of nitrite and nitrate content in traditional dry sausage “homemade kulen”." Meso 26, no. 5 (2024): 619–427. http://dx.doi.org/10.31727/m.26.5.3.

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When it comes to sausages production, the meat industry relies on the effectiveness of antimicrobial agents such as nitrite (NO2 − ), nitrate (NO3 − ) and their potassium and sodium salts. These additives are important as curing agents, antioxidants, and they enhance the color, flavor, aroma and inhibit the growth and reproduction of bacteria Staphylococcus aureus and Clostridium botulinum. However, nitrites and nitrates are known to react in such a way to form N-nitrosamines which are, according to the IARC (International Agency for Research on Cancer), claimed as probably or possibly carcino

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4

Fogarasi, Erzsébet, Ibolya Fülöp, Emanuela Marcu, and Mircea Dumitru Croitoru. "Presence of Nitrate and Nitrite in Well Water in Mureș County." Acta Medica Marisiensis 62, no. 1 (2016): 78–81. http://dx.doi.org/10.1515/amma-2015-0063.

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AbstractObjective: One of the most important sources of nitrite and nitrate anions, besides vegetables and meat products, is the drinking water. Presence of nitrite and nitrate in the water in higher concentrations than those set by EFSA (0.5 mg/l nitrite, 50 mg/l nitrate), may have toxicological significance. A quantitative determination of these ions in samples collected from several pleases from Mureș County was made. Methods: Ninety-seven well water samples were tested from 12 different places from Mureș County. We used a simple HPLC-UV ion pair method for the determination of nitrite and

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5

KATSOULOS (Π. Δ. ΚΑΤΣΟΥΛΟΣ), P. D., N. PANOUSIS (Ν. ΠΑΝΟΥΣΗΣ), and H. KARATZIAS (Χ. ΚΑΡΑΤΖΙΑΣ). "Nitrate poisoning in ruminants." Journal of the Hellenic Veterinary Medical Society 55, no. 3 (2017): 226. http://dx.doi.org/10.12681/jhvms.15098.

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This paper describes the nitrate - nitrite poisoning of ruminants. This disease is caused by the ingestion of large amount of nitrate salts, which are reduced in the rumen to nitrite ions. Nitrites, after their absorption, cause the formation of methemoglobin and, in turn, respiratory and circulatory distress. The aim of the treatment is to reduce the percentage of methemoglobin in blood and to stop the continuing production of nitrite ions in the rumen. For the prevention of the disease, avoidance of feedstuff rich in nitrates and improvement of the water quality, are suggested.

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6

Al_Nawaiseh, FY, and RH Mashal. "Nitrate in raw and cooked vegetables: content, variation and influence of cooking methods." African Journal of Food, Agriculture, Nutrition and Development 25, no. 1 (2025): 25596–618. https://doi.org/10.18697/ajfand.138.25335.

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Nitrate concentrations in vegetables are pivotal in dietary nitrate benefit-risk assessments. This study examined nitrate and nitrite levels in vegetables commonly consumed in Jordan, highlighting the impact of different cooking methods (boiling, steaming, baking, stir-frying, and deep frying) on nitrate content. The study examined the nitrate and nitrite levels in 270 raw vegetables and vegetable-based dishes purchased from retail markets and restaurants in Amman, Jordan, during the winter months of 2022 and 2023. Furthermore, 91 experimentally -cooked vegetables were tested for their nitrate

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7

Yulianti, Wina, Ima Kusumanti, and Nurul Jannah. "Determination of Nitrite and Nitrate Level in Wastewater Discharge from Smoked Fish Industry." JURNAL SAINS NATURAL 12, no. 1 (2022): 17. http://dx.doi.org/10.31938/jsn.v12i1.323.

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This research aimed to determine nitrite and nitrate contamination in wastewater discharge from the smoked fish industry around the fishpond area in Penatarsewu village, Sidoarjo East Java. Samples were taken from ten locations along The Alo River from September to November 2020. Nitrate and nitrite levels were determined by the Standard Method for Examination of Water and Wastewater 4500-NO2-B dan 4500-NO3-B. Nitrite formed a reddishpurple azo dye produced by coupling diazotized sulfanilamide with N-(1-naphthyl)-ethylene-diamine dihydrochloride after a visible spectrophotometer measured the c

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8

R, Stanek, and Zabranska J*. "Inhibition of Biological Denitrification by Nitric Oxide, Its Early Detection and Prevention of Negative Impact on the Denitrification of Industrial Wastewater." Journal of Biomedical Research & Environmental Sciences 6, no. 1 (2025): 001–11. https://doi.org/10.37871/jbres2050.

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Biological denitrification is used to treat industrial wastewater containing high concentrations of nitrate and sulfate from nitrocellulose production, which contains high concentrations of nitrates and sulfates. The reactor emits brown nitrogen dioxide gas suggesting significant Nitric Oxide (NO) formation and reaction with air. NO may significantly inhibit the denitrification process, reduce treatment efficiency and cause potentially serious issues in nitrocellulose production. An NO-sensitive oxygen luminescence probe demonstrated an accumulation of exceptionally high NO levels. The presenc

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9

McMullen, Sarah E., John A. Casanova, Lois K. Gross, and Frank J. Schenck. "Ion Chromatographic Determination of Nitrate and Nitrite in Vegetable and Fruit Baby Foods." Journal of AOAC INTERNATIONAL 88, no. 6 (2005): 1793–96. http://dx.doi.org/10.1093/jaoac/88.6.1793.

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Abstract An ion chromatographic method was developed for the determination of nitrate and nitrite in vegetable and fruit baby foods. The introduction of nitrate or nitrite to food may be natural or artificial as a preservative. Because of the higher pH found in babies' stomachs, nitrate can act as a reservoir for the production of nitrite by nitrate-reducing bacteria that can be harbored in the intestinal tract. This problem does not exist in adults because of the lower pH of the adult stomach. Exposure to nitrite by infants can result in methemoglobinemia (blue baby syndrome). There are also

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10

Drysdale, G. D., H. C. Kasan, and F. Bux. "Assessment of denitrification by the ordinary heterotrophic organisms in an NDBEPR activated sludge sytem." Water Science and Technology 43, no. 1 (2001): 147–54. http://dx.doi.org/10.2166/wst.2001.0036.

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The purpose of this study was to isolate and characterise the ordinary heterotrophic organisms (OHOs) present in a NDBEPR system in order to gain a better understanding of the organisms involved in denitrification as well as a more holistic and accurate evaluation of the OHO fraction attributable to denitrification in such a system. Heterotrophic bacteria were isolated from the pre- and secondary anoxic zones of the Darvill NDBEPR process and characterised according to their ability to reduce nitrates and/or nitrites under anoxic conditions. Results showed that the OHO fraction is more complex

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11

Carlsson, S., M. Govoni, N. P. Wiklund, E. Weitzberg, and J. O. Lundberg. "In Vitro Evaluation of a New Treatment for Urinary Tract Infections Caused by Nitrate-Reducing Bacteria." Antimicrobial Agents and Chemotherapy 47, no. 12 (2003): 3713–18. http://dx.doi.org/10.1128/aac.47.12.3713-3718.2003.

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ABSTRACT Dietary and endogenous nitrates are excreted in urine, and during infection with nitrate-reducing bacteria they are reduced to nitrite. At a low pH nitrite is converted to a variety of nitrogen oxides that are toxic to bacteria. We hypothesized that acidification of nitrite-rich infected urine would result in the killing of the nitrate-reducing bacteria. An Escherichia coli control strain and a mutant lacking nitrate reductase activity were preincubated in urine supplemented with sodium nitrate (0 to 10 mM) at pH 7.0. Then, the nitrite-containing bacterial culture was transferred (and

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12

Gutyj, B., K. Leskiv, A. Shcherbatyy, et al. "The influence of Metisevit on biochemical and morphological indicators of blood of piglets under nitrate loading." Regulatory Mechanisms in Biosystems 8, no. 3 (2017): 427–32. http://dx.doi.org/10.15421/021767.

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The article presents the results of research on the influence of the developed complex preparation Metisevit on the dynamics of morphological and biochemical blood indicators of piglets under nitrate loading. The research established that sodium nitrate intoxication causes disbalance of the physiological level of hematological indicators of the tested animals’ organisms. This was indicated by the manifestations of subclinical chronic nitrate-nitrite toxicosis: the increase in the level of nitrates, nitrites and methemoglobin in the blood. After prolonged feeding of the piglets with sodium nitr

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13

Luetic, Sanja, Zlatka Knezovic, Katarina Jurcic, Zrinka Majic, Ksenija Tripkovic, and Davorka Sutlovic. "Leafy Vegetable Nitrite and Nitrate Content: Potential Health Effects." Foods 12, no. 8 (2023): 1655. http://dx.doi.org/10.3390/foods12081655.

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The aim of this research was to determine the concentrations of nitrates and nitrites in different types of vegetables that are commonly represented in the diet of the inhabitants of Split and Dalmatian County. Therefore, using the method of random selection, there were 96 samples of different vegetables. The determination of the nitrate and nitrite concentrations was carried out by high-pressure liquid chromatography (HPLC) with a diode array detector (DAD). The nitrate concentrations in the range 2.1–4526.3 mg kg−1 were found in 92.7% of the analyzed samples. The highest nitrate values were

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14

Said Abasse, Kassim, Eno E. Essien, Muhammad Abbas, et al. "Association between Dietary Nitrate, Nitrite Intake, and Site-Specific Cancer Risk: A Systematic Review and Meta-Analysis." Nutrients 14, no. 3 (2022): 666. http://dx.doi.org/10.3390/nu14030666.

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Background: People consume nitrates, nitrites, nitrosamines, and NOCs compounds primarily through processed food. Many studies have yielded inconclusive results regarding the association between cancer and dietary intakes of nitrates and nitrites. This study aimed to quantify these associations across the reported literature thus far. Methods: We performed a systematic review following PRISMA and MOOSE guidelines. A literature search was performed using Web of Science, Embase, PubMed, the Cochrane library, and google scholar up to January 2020. STATA version 12.0 was used to conduct meta-regre

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15

Jones, Trevor. "Nitrate/nitrite." In Practice 15, no. 3 (1993): 146–47. http://dx.doi.org/10.1136/inpract.15.3.146.

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16

LIN, KUEN-SONG, NI-BIN CHANG, and TIEN-DENG CHUANG. "DECONTAMINATION OF NITRATES AND NITRITES IN WASTEWATER BY ZERO-VALENT IRON NANOPARTICLES." Nano 03, no. 04 (2008): 291–95. http://dx.doi.org/10.1142/s1793292008001283.

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The chemical reduction of nitrate or nitrite species by zero-valent iron nanoparticle (ZVIN) in aqueous solution and related reaction kinetics or mechanisms using fine structure characterization were investigated. Experimentally, ZVIN of this study was prepared by borohydride reduction method at room temperature. The morphology of as-synthesized ZVIN shows that the nearly ball and ultrafine particles ranged of 20–50 nm were observed with FE-SEM analysis. The kinetic model of nitrites or nitrates reductive reaction by ZVIN is proposed as a pseudo-first-order kinetic equation. The nitrite and ni

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17

M. Heavenlin, I. Kanitha Christy, and C.Gunasekaran. "DETECTION OF NITRATE ACCUMULATION IN FORAGE CROP (SORGHUM) OF SALEM DISTRICT." EPH - International Journal of Science And Engineering 1, no. 1 (2015): 26–28. http://dx.doi.org/10.53555/eijse.v1i1.21.

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Nitrates transpire in drought conditions in poor pastures and reduce forage yields. Producers use barren or low producing grain crops as replacement forage. These forages may be toxic due to high nitrate level accumulation from water. Nitrate analysis from Panamarathupatti zone of Salem district revealed high level of prevalence and hence veterinarians and livestock owners should be aware of the prevailing nitrate contents in forage which would decline the health of livestock.  Nitrate, Sorghum forage and livestock health. Nitrates in forages do not in themselves cause the poisoning of f

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18

Ulfah, Maria, Octavia Devi Puspita Sari, and Muhammad Syaipul Hayat. "Bioremediation of Nitrate and Nitrite on the Rehabilitation of Contaminated Jatibarang Landfill and the Application of Calla Lily." Jurnal Penelitian Pendidikan IPA 10, no. 7 (2024): 4172–78. http://dx.doi.org/10.29303/jppipa.v10i7.8095.

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Currently, waste processing is a problem because it is not yet optimal. The high content of nitrates and nitrites results in environmental pollution which can cause losses because it affects health and biodiversity. One effort to control environmental pollution is phytoremediation using calla lily (Zantedeschia aethiopica) to remediate nitrate and nitrite levels that do not comply with quality standards so that pollution can be minimized. This research aims to determine the effectiveness of calla lily as a phytoremediation agent for landfill leachate nitrate and nitrite. This experimental rese

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19

Muhaemin, Moh, Dewi Alfya Rahmadita, Joko Suwiryono, and Henky Mayaguezz. "Variabilitas Konsentrasi dan Sebaran N-anorganik (Amonia, Nitrit, dan Nitrat) Terlarut di Perairan Kalianda dan Perairan Anyer-Panimbang." Journal of Marine Research 12, no. 4 (2023): 237–45. http://dx.doi.org/10.14710/jmr.v12i4.38566.

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N-anorganik yang berdekatan dengan hatchery atau tambak, permukiman warga, dan muara sungai diduga bersebaran berbeda di perairan teluk dan perairan selat. Penelitian bertujuan untuk menganalisis sebaran horizontal, tingkat kesesuaiannya terhadap baku mutu, serta menganalisis konektivitas antara konsentrasi amonia, nitrit, dan nitrat dengan parameter fisika dan kimia non nitrogen di perairan Kalianda (perairan Teluk) dan perairan Anyer-Panimbang (menghadap Selat Sunda). Penelitian dilaksanakan di perairan Kalianda dan perairan Anyer-Panimbang pada bulan September dan Oktober 2022. Konsentrasi

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20

Ngibad, Khoirul. "PENGUKURAN KADAR FLUORIDA, NITRAT, DAN NITRIT DALAM AIR SUMUR MENGGUNAKAN METODE SPEKTROFOTOMETRI UV-VIS." CHEDS: Journal of Chemistry, Education, and Science 7, no. 1 (2023): 51–58. http://dx.doi.org/10.30743/cheds.v7i1.6791.

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Fluoride is beneficial to human health but its excess or lack of water is harmful to humans as well as the environment and can cause fluorosis. On the other hand, the intake of high concentrations of nitrates and nitrites can cause methemoglobinemia. This study aims to analyze fluoride, nitrate, and nitrite levels in well water around Taman District, Sidoarjo Regency. The method used in this study was UV-Vis spectrophotometry at a wavelength of 570 nm for the measurement of fluoride levels and a wavelength of 543 nm for the measurement of nitrate and nitrite cadaver. The results showed that th

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Saputra, Alfian Dony, Haeruddin Haeruddin, and Niniek Widyorini. "EFEKTIVITAS KOMBINASI MIKROORGANISME DAN TUMBUHAN AIR Lemna minor SEBAGAI BIOREMEDIATOR DALAM MEREDUKSI SENYAWA AMONIAK, NITRIT, DAN NITRAT PADA LIMBAH PENCUCIAN IKAN." Management of Aquatic Resources Journal (MAQUARES) 5, no. 3 (2016): 80–90. http://dx.doi.org/10.14710/marj.v5i3.14393.

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ABSTRAK Limbah pencucian ikan bersumber dari kegiatan pencucian bagian luar dan dalam tubuh ikan. Limbah pencucian ikan memiliki kandungan senyawa amoniak, nitrit, dan nitrat yang tinggi sehingga kemungkinan mempunyai efek negatif bagi lingkungan. Sebagian besar industri pengolahan ikan belum melakukan pengolahan limbah cairnya dengan baik. Bioremediasi merupakan metode biologi dengan memanfaatkan mikroorganisme dan tumbuhan air Lemna minor dalam pengolahan air limbah. Penelitian ini bertujuan untuk mengetahui efektivitas dan pengaruhdari kombinasi mikroorganisme dan Lemna minor dalam mereduks

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22

Hirose, Daisuke, and Tsuyoshi Taniguchi. "Aerobic radical multifunctionalization of alkenes using tert-butyl nitrite and water." Beilstein Journal of Organic Chemistry 9 (August 20, 2013): 1713–17. http://dx.doi.org/10.3762/bjoc.9.196.

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Water induces a change in the product of radical multifunctionalization reactions of aliphatic alkenes involving an sp3 C–H functionalization by an 1,5-hydrogen shift using tert-butyl nitrite and molecular oxygen. The reaction without water, reported previously, gives nitrated γ-lactols, whereas the reaction in the presence of water produces 4-hydroxy-5-nitropentyl nitrate or 4-hydroxy-3-nitropentyl nitrate derivatives.

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Sabimana, Richard Gasigwa, Nana Nkiassi Ngadume, Lydie Phemba Botulu, Jean Nkongolo Mbuya, Glodi Nsilulu Makaba, and Roger Kizungu Vumilia. "Risques de contamination par le nitrate et nitrite des sources d’eau potable de la zone de santé de Lukula dans la province du Kongo central en République Démocratique du Congo." Revue Africaine d’Environnement et d’Agriculture 7, no. 4 (2025): 25–32. https://doi.org/10.4314/rafea.v7i4.4.

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Description du sujet: La contamination de l’eau par le nitrate et le nitrite est une préoccupation majeure dans le monde. Ainsi, la zone de santé de Lukula dans la province du Kongo central n’est pas épargnée de cette situation qui risque d’hypothéquer la santé publique. Objectif: L’objectif de cet article est d’étudier le niveau de risque d’exposition des populations locales à la contamination en nitrate, nitrite et autres substances dissoutes ou en suspension dans l’eau souterraine dans la zone de santé de Lukula dans la province du Kongo central. Méthodes: Pour répondre à l’hypothèse d’exis

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24

Schlagenhauf, Ulrich. "On the Role of Dietary Nitrate in the Maintenance of Systemic and Oral Health." Dentistry Journal 10, no. 5 (2022): 84. http://dx.doi.org/10.3390/dj10050084.

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The assessment of the significance of nitrates ingested with food has undergone a fundamental change in recent years after many controversial discussions. While for a long time, a diet as low in nitrates as possible was advocated on the basis of epidemiological data suggesting a cancer-promoting effect of nitrate-rich diets, more recent findings show that dietary nitrate, after its conversion to nitrite by nitrate-reducing bacteria of the oral microbiota, is an indispensable alternative source for the formation of nitric oxide (NO), which comprises a key element in the physiology of a variety

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Silvi, Monica Virgiana, Sri Redjeki, and Ita Riniatsih. "Kandungan Nutrien di Sedimen pada Ekosistem Padang Lamun di Teluk Awur dan Pulau Panjang, Jepara." Journal of Marine Research 11, no. 3 (2022): 420–28. http://dx.doi.org/10.14710/jmr.v11i3.32219.

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Nutrien merupakan zat hara penting di perairan untuk menyokong proses pertumbuhan dan perkembangan potensi sumberdaya dari ekosistem laut. Nutrien nitrat dan fosfat secara alami merupakan zat hara yang berasal dari perairan itu sendiri melalui proses penguraian, pelapukan, dekomposisi tumbuhan dan buangan limbah daratan (domestik, industri, pertanian, perikanan dan sisa pakan). Nitrat dan fosfat berperan sebagai faktor pembatas pertumbuhan organisme dan kesuburan perairan. Sedimen merupakan tempat penyimpanan utama bahan organik dan mampu untuk mengikat senyawa seperti nitrat dan fosfat. Penel

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Merinas-Amo, Tania, Rocío Merinas-Amo, Laura Márquez Prados, Rafael Font, Mercedes Del Río Celestino, and Ángeles Alonso-Moraga. "Bioassays to Assess the Safety of Potassium and Sodium Nitrates and Nitrites." Processes 13, no. 2 (2025): 325. https://doi.org/10.3390/pr13020325.

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(1) Background: Advances in food processing practices and health care are some of the most significant advances in modern daily life. The goal of this study is to evaluate the safety of potassium and sodium nitrates and nitrites when they are used as fertilizers in agriculture and food additives, as well as the known conversion of nitrate to nitrite in humans. (2) Methods: Various bioassays were conducted to investigate the effects of nitrates and nitrites in the Drosophila melanogaster genetic tester system. These assays focused on the modulation of degenerative processes at the molecular, ce

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MOTTELET, S., A. FILALI, S. GUERIN-RECHDAOUI, V. ROCHER, S. AZIMI, and A. PAUSS. "Mesure en ligne des concentrations d’ions nitrites et nitrates pour l’optimisation de la dénitrification et la réduction de la production de protoxyde d’azote." Techniques Sciences Méthodes, no. 6 (June 22, 2020): 23–32. http://dx.doi.org/10.36904/tsm/202006023.

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Cette étude vise à évaluer la capacité d’une sonde à rayons ultraviolets (UV) à estimer simultanément les teneurs en nitrate et nitrite en sortie d’une unité de biofiltration en postdénitrification. L’estimation de ces deux espèces est compliquée du fait de la très grande similitude de leur spectre UV et de la présence d’autres molécules absorbantes dans l’UV. Celle-ci est pourtant indispensable au développement d’algorithmes de contrôle, seuls à même de garantir un résiduel en nitrite et nitrate conforme aux exigences de la directive cadre sur l’eau. La sonde WTW Nitra Vis 705 IQ NI a été cal

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Cabrera, Elisa, Rafaela González-Montelongo, Teresa Giraldez, Diego Alvarez de la Rosa, and José M. Siverio. "Molecular Components of Nitrate and Nitrite Efflux in Yeast." Eukaryotic Cell 13, no. 2 (2013): 267–78. http://dx.doi.org/10.1128/ec.00268-13.

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ABSTRACTSome eukaryotes, such as plant and fungi, are capable of utilizing nitrate as the sole nitrogen source. Once transported into the cell, nitrate is reduced to ammonium by the consecutive action of nitrate and nitrite reductase. How nitrate assimilation is balanced with nitrate and nitrite efflux is unknown, as are the proteins involved. The nitrate assimilatory yeastHansenula polymorphawas used as a model to dissect these efflux systems. We identified the sulfite transporters Ssu1 and Ssu2 as effective nitrate exporters, Ssu2 being quantitatively more important, and we characterize the

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KILIÇ, Arzu, Serden BAŞAK, Kevser CIRIK, et al. "İçme Sularından Nitrat Gideriminde İkincil Kirleticilerin Denitrifikasyona Etkisi / The Effect of Co-Contaminant on Denitrification Removal of Nitrate in Drinking Water." Journal of History Culture and Art Research 1, no. 4 (2013): 475. http://dx.doi.org/10.7596/taksad.v1i4.83.

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Son yıllarda tarımda bilinçsizce kullanılan azotlu gübreler ve arıtılmadan deşarj edilen atıksular yeraltısularında nitrat kirliliğinin artmasına neden olmuştur. Geçmişteki çalışmalar birçok ülkede yeraltısuyunda nitrat konsantrasyonunun hızında artış olduğunu göstermektedir. Ülkemizde yeraltısularının ve kullanılabilir içme suyu kaynaklarının kirlilik haritası henüz çıkarılmış değildir. Yapılan bölgesel çalışmalarda ülkemizdeki kaynakların da hızlı bir şekilde kirlendiği görülmektedir. Şanlıurfa, Harran ovasında, Akdeniz kıyı bölgelerinde yapılan çalışmalarda kuyularda nitrat konsantrasyonun

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Dzakwan, Ardhatama Zafron, Hadi Endrawati, and Raden Ario. "Analisis Konsentrasi Nitrat Dan Fosfat Terhadap Kelimpahan Fitoplankton Di Perairan Sengkarang Pekalongan." Journal of Marine Research 12, no. 4 (2023): 571–78. http://dx.doi.org/10.14710/jmr.v12i4.35259.

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Peran penting nitrat dan fosfat sangat berpengaruh sekali terhadap pertumbuhan dan perkembangan biota yang ada di laut. Kedua nutrien ini sangat dibutuhkan dalam pembentukan sel jaringan pada organisme laut maupun proses fotosintesis yang terjadi pada organisme seperti fitoplankton. Salah satu parameter biologi yang erat kaitanya dengan nutrien seperti nitrat dan fosfat yaitu fitoplankton. Tingkat kelimpahan dari fitoplankton dapat dipengaruhi oleh konsentrasi nitrat fosfat yang ada di perairan tersebut. Adapun tujuan dilakukanya kajian mengenai konsentrasi nitrat dan fosfat dengan kelimpahan

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ARCHER, DOUGLAS L. "Evidence that Ingested Nitrate and Nitrite Are Beneficial to Health†." Journal of Food Protection 65, no. 5 (2002): 872–75. http://dx.doi.org/10.4315/0362-028x-65.5.872.

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The literature was reviewed to determine whether ingested nitrate or nitrite may be detrimental or beneficial to human health. Nitrate is ingested when vegetables are consumed. Nitrite, nitrate's metabolite, has a long history of use as a food additive, particularly in cured meat products. Nitrite has been a valuable antibotulinal agent in cured meats and may offer some protection from other pathogens in these products as well. Nitrite's use in food has been clouded by suspicions that nitrite could react with amines in the gastric acid and form carcinogenic nitrosamines, leading to various can

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Gates, Andrew J., Victor M. Luque-Almagro, Alan D. Goddard, Stuart J. Ferguson, M. Dolores Roldán, and David J. Richardson. "A composite biochemical system for bacterial nitrate and nitrite assimilation as exemplified by Paracoccus denitrificans." Biochemical Journal 435, no. 3 (2011): 743–53. http://dx.doi.org/10.1042/bj20101920.

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The denitrifying bacterium Paracoccus denitrificans can grow aerobically or anaerobically using nitrate or nitrite as the sole nitrogen source. The biochemical pathway responsible is expressed from a gene cluster comprising a nitrate/nitrite transporter (NasA), nitrite transporter (NasH), nitrite reductase (NasB), ferredoxin (NasG) and nitrate reductase (NasC). NasB and NasG are essential for growth with nitrate or nitrite as the nitrogen source. NADH serves as the electron donor for nitrate and nitrite reduction, but only NasB has a NADH-oxidizing domain. Nitrate and nitrite reductase activit

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Moshage, H., B. Kok, J. R. Huizenga, and P. L. Jansen. "Nitrite and nitrate determinations in plasma: a critical evaluation." Clinical Chemistry 41, no. 6 (1995): 892–96. http://dx.doi.org/10.1093/clinchem/41.6.892.

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Abstract Plasma nitrite and nitrate determinations are increasingly being used in clinical chemistry as markers for the activity of nitric oxide synthase and the production of nitric oxide radicals. However, a systematic evaluation of the determination of nitrite and nitrate in plasma has not been performed. In this study the recovery and stability of nitrite and nitrate in whole blood and in plasma, the relation between nitrite and nitrate concentrations in plasma, and possible sources of artifacts were investigated. The main conclusions are: (a) Recovery of nitrite and nitrate from plasma is

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TYRPENOU, A. E., E. H. GOUTA (E.H. ΓΟΥΤΑ), A. D. TSIGOURI (Α.Δ. ΤΣΙΓΟΥΡΗ), and Ch N. VLASIOTIS (Χ.Ν. ΒΛΑΣΙΩΤΗΣ). "Nitrate and nitrite residues in Greek pastirma." Journal of the Hellenic Veterinary Medical Society 51, no. 4 (2018): 302. http://dx.doi.org/10.12681/jhvms.15691.

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In this research, for the investigation of the nitrate and nitrite content of Greek pastirma samples coming from several Greek meat processing factories were examined. Nitrate and nitrite determination was carried out following the standard methods of the International Standard Organization ISO No. 2918/751 and 3091/75.2 According to these Standard Operating Procedures-SOPs, reducing capacity of cadmium column should always has to be >90%. Because this critical point usually causes problems [never was >70%], we succeeded and validated this point by amending 3 points of the Standard Opera

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Petrescu, Cristina. "SPATIAL AND TEMPORAL DISTRIBUTION OF NITRATES AND NITRITES IN THE FARMS’ WATER OF TIMIS COUNTY, ROMANIA: A CASE-STUDY." Proceedings of CBU in Medicine and Pharmacy 3 (December 1, 2022): 23–28. http://dx.doi.org/10.12955/pmp.v3.319.

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The present study aimed to investigate the spatial and temporal distribution of nitrates and nitrites in the farms’ water of Timis County. The sample for the study consisted of 4028 analysis bulletins of the nitrate and nitrite concentrations, measured in 41 farms and local water sources over two years (2016- 2242 and 2017- 1904 water samples) by the Surveillance Service, Public Health Direction, Timis. The data has been analysed with an observational case study of the spatial and temporal distribution of nitrate and nitrite concentrations in the farm water in Timis County. It has been found t

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Smychok, T. Z., B. V. Gutyj, O. V. Kozenko, et al. "The influence of the feed additive “Metisevit” on the activity of the antioxi-dant defense system of piglets under conditions of nitrate-nitrite load." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 25, no. 99 (2023): 176–81. http://dx.doi.org/10.32718/nvlvet-a9929.

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The work aimed to investigate the effect of the “Metisevit” feed additive on the activity of the enzymes of the antioxidant system of the blood of piglets under conditions of nitrate-nitrite load. The research was carried out on 60-day-old piglets of the large white breed. For the experiment, 10 clinically healthy piglets were selected, from which 2 groups of five animals were formed. Piglets of the control group were fed sodium nitrate at a dose of 0.3 g NO3-/kg body weight for three months. Piglets of the research group were also fed sodium nitrate at a dose of 0.3 g NO3-/kg of body weight,

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Chatterjee, Amrita, Dipratn G. Khandare, Praveen Saini, Anjan Chattopadhyay, Mahesh S. Majik, and Mainak Banerjee. "Amine functionalized tetraphenylethylene: a novel aggregation-induced emission based fluorescent chemodosimeter for nitrite and nitrate ions." RSC Advances 5, no. 40 (2015): 31479–84. http://dx.doi.org/10.1039/c4ra14765k.

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A novel AIE-based fluorescent probe for the detection of trace amounts of nitrite and nitrate ions in water has been developed, which spontaneously detects nitrites (or nitrates) by a fluorescence “turn-off” method.

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Agić, Tea, Maja Rečić, Dorotea Piškor, Marina Posavec, and Dubravka MArija Kreković. "Određivanje sadržaja nitrata i nitrita u mesnim proizvodima bez dodanih aditiva." Meso 25, no. 4 (2023): 300–309. http://dx.doi.org/10.31727/m.25.4.1.

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A food additive is any substance not consumed as a food ingredient but added to food for a specific purpose, for example inhibiting microorganism growth and maintaining sensory quality. Potassium and sodium nitrates and nitrites are among the most commonly used food additives in the meat industry due to their antimicrobial effect, in particular to prevent the growth of pathogenic bacteria Clostridium botulinum and its spores. Additionally, they provide specific sensory attributes, primarily the inherent pink color of meat products. Studies showed that excessive intake of nitrates and nitrites

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Wangiyana, I. Gde Adi Suryawan, and Wayan Wangiyana. "Distribusi Enzim Nitrat Reduktase pada Cabai Merah (Capsicum annum) dalam Rangka Mendukung Sistem Agroforestry Berkelanjutan." Rona Teknik Pertanian 11, no. 2 (2018): 28–37. http://dx.doi.org/10.17969/rtp.v11i2.12061.

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Abstrak. Penelitian ini bertujuan untuk mengetahui distribusi enzim nitrat reduktase pada tanaman cabai merah (C. annum) yang dipengaruhi oleh berbagai faktor fisiologis. Percobaan ini menggunakan Rancangan Acak Lengkap dengan banyak faktor diantaranya: Faktor organ tanaman, umur tanaman, posisi daun dan pemupukan dengan nitrat. Berbagai organ tanaman cabai direndam dalam buffer fosfat pH 7,5 selama 20 menit. Setelah itu dilakukan penambahan susbtrat berupa 0,1M NaNO3 dan diinkubasi selama 60 menit. Sampel selanjutnya direndam dalam larutan Napthylediamine dan Sulfanilamide 1:1. Absorbansi sam

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Ardhaneswari, Mutia, and Bambang Wispriyono. "Analisis Risiko Kesehatan Akibat Pajanan Senyawa Nitrat dan Nitrit Pada Air Tanah di Desa Cihambulu Subang." Jurnal Kesehatan Lingkungan Indonesia 21, no. 1 (2021): 65–72. http://dx.doi.org/10.14710/jkli.21.1.65-72.

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Latar belakang: Penggunaan pupuk nitrogen seperti NPK dan urea pada lahan pertanian dapat menyebabkan pencemaran pada air tanah di wilayah pertanian. Pupuk nitrogen yang diaplikasikan pada tanah akan mengalami leaching terbawa air hujan masuk ke dalam tanah. Konsumsi air tanah yang mengandung nitrat dan nitrit dapat mengakibatkan dampak kesehatan seperti Blue Baby Syndrome atau Methemoglobinemia dan kanker. Penelitian ini dilakukan untuk menganalisis konsentrasi nitrat dan nitrit pada air tanah dan mengukur tingkat risiko kesehatan yang ditimbulkan dari kedua pajanan ini terhadap penduduk di D

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Taneja, Pinky, Pawan Labhasetwar, Pranav Nagarnaik, and Jeroen H. J. Ensink. "The risk of cancer as a result of elevated levels of nitrate in drinking water and vegetables in Central India." Journal of Water and Health 15, no. 4 (2017): 602–14. http://dx.doi.org/10.2166/wh.2017.283.

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The objective of the present study was to determine the effect of nitrates on the incidence of gastrointestinal (GI) cancer development. Nitrate converted to nitrite under reducing conditions of gut results in the formation of N-nitrosamines which are linked to an increased gastric cancer risk. A population of 234 individuals with 78 cases of GI cancer and 156 controls residing at urban and rural settings in Nagpur and Bhandara districts of India were studied for 2 years using a case-control study. A detailed survey of 16 predictor variables using Formhub software was carried out. Nitrate conc

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Frías, José E., and Enrique Flores. "Induction of the Nitrate AssimilationnirAOperon and Protein-Protein Interactions in the Maturation of Nitrate and Nitrite Reductases in the Cyanobacterium Anabaena sp. Strain PCC 7120." Journal of Bacteriology 197, no. 14 (2015): 2442–52. http://dx.doi.org/10.1128/jb.00198-15.

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ABSTRACTNitrate is widely used as a nitrogen source by cyanobacteria, in which the nitrate assimilation structural genes frequently constitute the so-callednirAoperon. This operon contains the genes encoding nitrite reductase (nirA), a nitrate/nitrite transporter (frequently an ABC-type transporter;nrtABCD), and nitrate reductase (narB). In the model filamentous cyanobacteriumAnabaenasp. strain PCC 7120, which can fix N2in specialized cells termed heterocysts, thenirAoperon is expressed at high levels only in media containing nitrate or nitrite and lacking ammonium, a preferred nitrogen source

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Nerdy, Nerdy, and Effendy De Lux Putra. "Spectrophotometric Method for Determination of Nitrite and Nitrate Levels in Broccoli and Cauliflower with Different Fertilization Treatment." Oriental Journal of Chemistry 34, no. 6 (2018): 2983–91. http://dx.doi.org/10.13005/ojc/340639.

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Both broccoli and cauliflower are plants that are widely cultivated and consumed. The vegetable also contains Nitrite and Nitrite, which have a negative impact on human health because of the carcinogenic effect. Levels of Nitrite and Nitrate in vegetable are dependent on several factors, one of them is fertilization. The objective of this research is to determine the levels of Nitrite and Nitrate in broccoli and cauliflower without fertilization and with fertilization (natural and chemical). Samples were planted broccoli and cauliflower with different fertilization treatment. Determination of

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Wu, Qitu, and Roger Knowles. "Cellular regulation of nitrate uptake in denitrifying Flexibacter canadensis." Canadian Journal of Microbiology 40, no. 7 (1994): 576–82. http://dx.doi.org/10.1139/m94-092.

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Nitrate uptake and its regulation were investigated using an ion-specific nitrate electrode for denitrifying Flexibacter canadensis under anaerobic conditions. Glucose supported a greater rate of nitrate uptake than did glycerol, glutamate, lactose, cellobiose, or ethanol. Nitrate uptake closely approximated Michaelis–Menten kinetics; the estimated Ks(glucose) and apparent Km(nitrate) for nitrate uptake were 21 and 44 μM, respectively. Nitrate disappearance was correlated with nitrite accumulation, and nitrate had an inhibitory effect on nitrite reduction. Oxygen inhibition of nitrate uptake i

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Cintya, Henni, Jansen Silalahi, Effendy De Lux Putra, and Rikson Siburian. "The influence of storage condition on nitrite, nitrate and vitamin C levels in vegetables." F1000Research 7 (December 6, 2018): 1899. http://dx.doi.org/10.12688/f1000research.16853.1.

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Vegetables are the main sources of nitrate and nitrite in food. The presence of nitrate and nitrite at a high level may cause a negative impact on health, because nitrite and nitrate when reduced to nitrite, may react with alkylamine to form carcinogenic nitrosamine. The influence of temperature and time of storage on nitrite, nitrate, and vitamin C contents in vegetables were investigated in this study. The vegetables were sweet mustard, bokchoy, spinach and lettuce obtained from a local market. Samples were stored at ±25oC and ±5oC. Analysis of nitrite, nitrate, and vitamin C was conducted i

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Dung, T. T. T., D. T. Nhan, and T. B. Chau. "The level of nitrate and nitrite in some fruits available in the local markets in District 7, Ho Chi Minh City, Vietnam." IOP Conference Series: Earth and Environmental Science 1349, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1755-1315/1349/1/012013.

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Abstract Nitrate and nitrite are main contaminants in fruits that must be controlled due to their potential adverse health effects on humans. The objectives of this study were to analyze levels of nitrate and nitrite in some selected fruits in local markets in District 7, Ho Chi Minh City, and to determine whether estimated dietary exposure to nitrate and nitrite poses a risk to human health. Mango, banana, tomato, and cucumber were collected and tested. Nitrate levels varied widely, ranging from 89 mg/kg to 1104 mg/kg across different fruits. Mango had the highest average nitrate level (588 m

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Stuehr, D. J., and M. A. Marletta. "Induction of nitrite/nitrate synthesis in murine macrophages by BCG infection, lymphokines, or interferon-gamma." Journal of Immunology 139, no. 2 (1987): 518–25. http://dx.doi.org/10.4049/jimmunol.139.2.518.

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Abstract Macrophage synthesis of nitrite and nitrate after activation by BCG infection or by treatment in vitro with both T cell-derived (lymphokines (LK) or recombinant murine interferon-gamma (IFN-gamma] and bacterial (lipopolysaccharide (LPS) and heat-killed bacillus Calmette-Guerin (hk BCG] agents was studied by using macrophages from C3H/He and C3H/HeJ mice. Spleen and peritoneal macrophages isolated from BCG-infected donors that were producing nitrate continued to synthesize nitrite and nitrate in culture. LPS treatment in vitro (25 or 50 micrograms/ml) additionally increased this nitrit

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Aichi, Makiko, Shin-Ichi Maeda, Kazuhiro Ichikawa, and Tatsuo Omata. "Nitrite-Responsive Activation of the Nitrate Assimilation Operon in Cyanobacteria Plays an Essential Role in Up-Regulation of Nitrate Assimilation Activities under Nitrate-Limited Growth Conditions." Journal of Bacteriology 186, no. 10 (2004): 3224–29. http://dx.doi.org/10.1128/jb.186.10.3224-3229.2004.

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ABSTRACT NtcB of the cyanobacterium Synechococcus elongatus strain PCC 7942 is a LysR family protein that enhances expression of the nitrate assimilation operon (nirA operon) in response to the presence of nitrite, an intermediate of assimilatory nitrate reduction. Inactivation of ntcB in this cyanobacterium specifically abolishes the nitrite responsiveness of nirA operon expression, but under nitrate-replete conditions (wherein negative feedback by intracellularly generated ammonium prevails over the positive effect of nitrite) activity levels of the nitrate assimilation enzymes are marginall

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Bhusal, Arjun, and Peter M. Muriana. "Isolation and Characterization of Nitrate Reducing Bacteria for Conversion of Vegetable-Derived Nitrate to ‘Natural Nitrite’." Applied Microbiology 1, no. 1 (2021): 11–23. http://dx.doi.org/10.3390/applmicrobiol1010002.

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In the US, sodium nitrate is used as a preservative and curing agent in processed meats and is therefore a regulated ingredient. Nitrate reducing bacteria (NRB) can convert vegetable nitrate into nitrite allowing green/clean label status in the US as per the USDA-FSIS definition of ‘natural nitrite’. The current ‘in-liquid’ test tube assay for detecting nitrite is not suitable for screening mixtures of bacteria nor is commercial nitrate broth suitable for growth of many Gram (+) bacteria. M17 broth was therefore used to develop M17-nitrate broth to be inclusive of Gram (+) bacteria. An ‘on-aga

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Jacková, A., P. Siklenka, and J. Pleva. "Transrenal passage of nitrates and nitrites in calves (short communication)." Archives Animal Breeding 42, no. 3 (1999): 235–40. http://dx.doi.org/10.5194/aab-42-235-1999.

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Abstract. In a study with 12 calves on milk nutrition, the course of methemoglobinemia as well as ttansrenal passage of nitrates and nitrites after single per os administrations of 4 g NaNO2 per animal and 30 g KNO3 per animal in the form of water Solutions has been observed. The response of the organism of calves to per os administered doses of sodium nitrite and potassium nitrate was observed by the determination of tlie methemoglobin percentage in blood and the nitrate and nitrite content in urine before the administration ofthe respective dose and after h 1, 2, 3 and 4 after the administra

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