1
|
Wang Z, Cui T, Wang Q. Optimization of degradation conditions and analysis of degradation mechanism for nitrite by Bacillus aryabhattai 47. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171096. [PMID: 38387569 DOI: 10.1016/j.scitotenv.2024.171096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/17/2024] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Excessive nitrite levels cause significant damage to aquaculture, making it crucial to explore green and reliable nitrite removal technologies. In this study, A Bacillus aryabhattai (designated as the strain 47) isolated from aquaculture wastewater was used as the experimental strain. The nitrite degradation conditions of the strain 47 were optimized, and the optimal conditions are: glucose was 12.74 g/L, fermented special soybean meal was 21.27 g/L, MgCl2 369 mg/L, pH 7.0, incubated at 30 °C with the inoculum size of 2 % and the rotation speed of 170 rpm. Under the optimal conditions, the nitrite concentration of the culture solution was 200 mg/L, and the nitrite removal rate reached 91.4 %. Meanwhile, the mechanism by which Mg2+ enhanced the nitrite degradation ability of the strain 47 was investigated by transcriptomics. An operon structure directed cellular trafficking of Mg2+, and then, the Mg2+-mediated catalytic reaction of multiple enzymes enhanced and improved cellular metabolic processes (e.g. the transport and metabolism of nitrite, central carbohydrate metabolism oxidative phosphorylation). At the same time, with the progress of cell metabolism, cells secreted a series of enzymes related to nitrite transport and metabolism to promote the metabolism of nitrite. And the process of the assimilated nitrate reduction pathway of nitrite degradation in the strain 47 was elaborated at the transcriptome level. This study provided a new insight into nitrite treatment mediated by microbial organisms.
Collapse
Affiliation(s)
- Zhenhao Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Tangbing Cui
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
| | - Qiang Wang
- Guangdong Yuzanchen Biotechnology Co., Ltd, Jiangmen 529100, PR China
| |
Collapse
|
2
|
Deveci G, Tek NA. N-Nitrosamines: a potential hazard in processed meat products. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2551-2560. [PMID: 37984839 DOI: 10.1002/jsfa.13102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/16/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
Nitrite, nitrate, and their salts are added to processed meat products to improve color, flavor, and shelf life and to lower the microbial burden. N-Nitrosamine compounds are formed when nitrosing agents (such as secondary nitrosamines) in meat products interact with nitrites and nitrates that have been added to the meat. With the consumption of such meat products, nitrosation reactions occur in the human body and N-nitrosamine formation occurs in the gastrointestinal tract. Despite the benefits nitrites and nitrates have on food, their tendency to create nitrosamines and an increase in the body's nitrous amine load presents health risks. The inclusion of nitrosamine compounds in possible and probable carcinogen classes according to the International Agency for Research on Cancer requires a re-examination of the literature review on processed meat products. This article evaluates the connections between various cancer types and nitrosamines found in processed meat products. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Gülsüm Deveci
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Ankara, Turkey
| | - Nilüfer Acar Tek
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Ankara, Turkey
| |
Collapse
|
3
|
Liu H, Huang Y, Huang M, Wang M, Ming Y, Chen W, Chen Y, Tang Z, Jia B. From nitrate to NO: potential effects of nitrate-reducing bacteria on systemic health and disease. Eur J Med Res 2023; 28:425. [PMID: 37821966 PMCID: PMC10566198 DOI: 10.1186/s40001-023-01413-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023] Open
Abstract
Current research has described improving multisystem disease and organ function through dietary nitrate (DN) supplementation. They have provided some evidence that these floras with nitrate (NO3-) reductase are mediators of the underlying mechanism. Symbiotic bacteria with nitrate reductase activity (NRA) are found in the human digestive tract, including the mouth, esophagus and gastrointestinal tract (GT). Nitrate in food can be converted to nitrite under the tongue or in the stomach by these symbiotic bacteria. Then, nitrite is transformed to nitric oxide (NO) by non-enzymatic synthesis. NO is currently recognized as a potent bioactive agent with biological activities, such as vasodilation, regulation of cardiomyocyte function, neurotransmission, suppression of platelet agglutination, and prevention of vascular smooth muscle cell proliferation. NO also can be produced through the conventional L-arginine-NO synthase (L-NOS) pathway, whereas endogenous NO production by L-arginine is inhibited under hypoxia-ischemia or disease conditions. In contrast, exogenous NO3-/NO2-/NO activity is enhanced and becomes a practical supplemental pathway for NO in the body, playing an essential role in various physiological activities. Moreover, many diseases (such as metabolic or geriatric diseases) are primarily associated with disorders of endogenous NO synthesis, and NO generation from the exogenous NO3-/NO2-/NO route can partially alleviate the disease progression. The imbalance of NO in the body may be one of the potential mechanisms of disease development. Therefore, the impact of these floras with nitrate reductase on host systemic health through exogenous NO3-/NO2-/NO pathway production of NO or direct regulation of floras ecological balance is essential (e.g., regulation of body homeostasis, amelioration of diseases, etc.). This review summarizes the bacteria with nitrate reductase in humans, emphasizing the relationship between the metabolic processes of this microflora and host systemic health and disease. The potential effects of nitrate reduction bacteria on human health and disease were also highlighted in disease models from different human systems, including digestive, cardiovascular, endocrine, nervous, respiratory, and urinary systems, providing innovative ideas for future disease diagnosis and treatment based on nitrate reduction bacteria.
Collapse
Affiliation(s)
- Hongyu Liu
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yisheng Huang
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Mingshu Huang
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Min Wang
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yue Ming
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Weixing Chen
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Yuanxin Chen
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Zhengming Tang
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China
| | - Bo Jia
- Department of Oral Surgery, School of Stomatology, Southern Medical University, Guangzhou, China.
| |
Collapse
|
4
|
Homem RV, Arisseto-Bragotto AP, Rodrigues E, Cladera-Olivera F. Theoretical estimation of nitrates and nitrites intake from food additives by the Brazilian population. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:1147-1163. [PMID: 37549245 DOI: 10.1080/19440049.2023.2240439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 08/09/2023]
Abstract
Sodium and potassium nitrates and nitrites are preservatives widely used in meat products and some cheese. They are important toxicologically but there is a lack of data on the exposure of the Brazilian population to these additives. This study aimed to verify the frequency of the use of nitrates and nitrites in processed foods in Brazil and to estimate their theoretical intake by the Brazilian population. A database was built of supermarket products containing nitrates, nitrites, and antioxidants. The Theoretical Maximum Daily Intake (TMDI) and TMDI balanced by the prevalence of food consumption (TMDI BPFC) were determined using consumption data from the Household Budget Surveys (2008/2009 and 2017/2018). The TMDI for nitrates and nitrites was lower than the Acceptable Daily Intake (ADI) for all population groups. Considering the prevalence of food consumption (consumers only), the TMDI BPFC values were lower than the ADI for nitrates (between 0.4 and 0.9 times the ADI) but very high values were obtained for nitrites (between 10 and 24 times the ADI). Our results suggest that the Brazilian population, especially some population groups, may be consuming unsafe amounts of nitrite. As a consequence, their health may be at risk.
Collapse
Affiliation(s)
- Raísa Vieira Homem
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
| | - Adriana Pavesi Arisseto-Bragotto
- Department of Food Science and Nutrition, Faculty of Food Engineering, FEA UNICAMP Rua Monteiro Lobato, State University of Campinas, Campinas, SP, Brazil
| | - Eliseu Rodrigues
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
| | - Florencia Cladera-Olivera
- Department of Food Science, Federal University of Rio Grande do Sul - Institute of Food Science and Technology, Porto Alegre, RS, Brazil
| |
Collapse
|
5
|
Schadt I. Health concerns about possible long-term effects of legally marketed milk and dairy from animals with intramammary infections. Front Public Health 2023; 11:1200924. [PMID: 37701910 PMCID: PMC10494540 DOI: 10.3389/fpubh.2023.1200924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/01/2023] [Indexed: 09/14/2023] Open
Abstract
Milk and dairy from animals with subclinical mastitis infections are marketable. Mastitis is detected with the somatic cell count (SCC). The EU regulation, among the stricter ones, limits an average of 400,000 somatic cells/ml in milk. Other countries have higher or no thresholds. This level suggests 40% of infected animals, and we indeed consume mastitic milk and dairy. A worldwide prevalence of dairy cattle and buffaloes with subclinical mastitis is estimated to range between 34 and 46%. The current food safety regulations account for mastitis pathogens, their toxins, and the risk of antimicrobial residues, but milk from animals with mastitis contains also compounds that derive from an immune response and inflammation process with biological function for the offspring. To the best of the current knowledge, it cannot be excluded that these compounds do not interfere with human homeostasis and that they do not contribute to redox or cytokine dysregulation that, in turn, could promote certain chronic diseases. These compounds include radicals, oxidation products, nitrosamines, and proinflammatory cytokines with nitrosamines being already recognized as probable carcinogens. Mastitis also alters the composition of caseins, plasmin, and plasminogen activators, which may be related to increased transformation into amyloid with similar characteristics as the fibrils associated with Alzheimer's disease. We should determine whether these bioactive compounds could, alone or in combination, represent any long-term risk to the consumer's health. Adapted regulations and concomitant subsidies for farmers are suggested, for sensing tools that reveal individual SCC and mastitis at milking. Frequent SCC determination is the prerequisite for any mastitis control program.
Collapse
Affiliation(s)
- Iris Schadt
- Research Section for Nutraceuticals and Health Products, Consorzio per la Ricerca nel Settore della Filiera Lattiero-Casearia e dell'Agroalimentare (CoRFiLaC), Ragusa, Italy
| |
Collapse
|
6
|
Chu Q, Li Y, Wang X. Bayesian inference of heavy metals exposure in crayfish for assessing human non-carcinogenic health risk. Food Chem Toxicol 2023; 173:113595. [PMID: 36608734 DOI: 10.1016/j.fct.2022.113595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/21/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
Contaminant concentrations often presented left censorship that below the limit of detection (LOD), which may contain true zero values because of no residue. In this study, we analyzed the concentrations of lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As), and chromium (Cr) in 391 crayfish samples collected from 24 provinces of China, modelled the concentrations with two different models in a Bayesian framework, and evaluated health risk by estimating the target hazard quotient (THQ). The highest concentration was associated with Cr in Northwest China (0.1753 ± 0.1520 mg/kg w. w.), and the minimum concentration was Cd in Southwest China (0.0052 ± 0.0144 mg/kg w. w.), all heavy metal concentrations were below their safety limits. The posterior means of not detect rates P0 of Pb, Cd, Hg, As, and Cr obtained with two models were both nearly equal to the observed not detect rates (51.15%, 36.83%, 27.37%, 64.71%, and 43.73%, respectively). The posterior probabilistic density lines for Pb, Hg, and Cd concentrations obtained with two models were similar, and fitted the empirical distributions well. The posterior density lines of THQs showed that the non-carcinogenic risk of As and Hg were significant high. Moreover, Bayesian approach presented a better understanding of the percentage of population exposed to potential risk.
Collapse
Affiliation(s)
- Qi Chu
- School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, 100048, China
| | - Ying Li
- School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, 100048, China
| | - Xueli Wang
- School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, 100048, China.
| |
Collapse
|
7
|
Wang S, Sun F, Wang S, Lv X, Zhao J, Wang J, Yu W, Yu H. N-nitrosamines in Qingdao dried aquatic products and dietary risk assessment. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2023; 16:120-129. [PMID: 36843386 DOI: 10.1080/19393210.2023.2177355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
N-nitrosamines are human carcinogens commonly present in dried aquatic products. A method of gas chromatography - mass spectrometry combined with steam distillation was developed for the determination of 9 N-nitrosamines in dried aquatic products in Qingdao, China, with which 300 samples of fish, squid, shrimp and sea cucumber collected from Qingdao were analysed. A health risk assessment was conducted based on determined levels of N-nitrosamines by using estimated daily intake and slope factors. Results showed that fish products was the category with the highest content of N-nitrosamines, whereas squid and shrimp products were the categories with the highest frequency of presence of N-nitrosamines. The average estimated cancer risk of N-nitrosamines in dried aquatic products in Qingdao ranged from 3.57 × 10-8 to 3.53 × 10-5. Nitrosodimethylamine, N-Nitrosodiethylamine and N-Nitrosodibutylamine could be considered to pose a potential cancer risk to residents in Qingdao.
Collapse
Affiliation(s)
- Shuangyu Wang
- Department of Public Health, Qingdao University, Qingdao, China
| | - Fenglin Sun
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| | - Shuhui Wang
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| | - Xiaojing Lv
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| | - Jinquan Zhao
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| | - Jie Wang
- Department of Hospital Infection, Zhoushan Hospital, Zhoushan, China
| | - Weisen Yu
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| | - Hongwei Yu
- Department of Chemical Laboratory, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao, China
| |
Collapse
|
8
|
Liu Q, Zhao C, Zhou J, Zhang H, Zhang Y, Wang S, Pu Y, Yin L. Reactive oxygen species-mediated activation of NLRP3 inflammasome associated with pyroptosis in Het-1A cells induced by the co-exposure of nitrosamines. J Appl Toxicol 2022; 42:1651-1661. [PMID: 35437791 DOI: 10.1002/jat.4332] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/05/2022] [Accepted: 04/16/2022] [Indexed: 11/10/2022]
Abstract
Nitrosamines were a class of important environmental carcinogens associated with digestive tract neoplasms. As the early toxic effect of nitrosamines, inflammatory response participated in the malignant transformation of cells and promoted the occurrence and development of tumors. However, the role of NLRP3 inflammasome in the nitrosamines-induced inflammatory response was unclear. In this study, the human esophageal epithelial cells (Het-1A) were used to explore potential mechanisms of the activation of NLRP3 inflammasome under co-exposure to nine nitrosamines commonly found in drinking water at the doses of 0, 4, 20, 100, 500, and 2500 ng/mL. The results showed that nitrosamines stimulated activation of the NLRP3 inflammasome and induced cellular oxidative damage in a dose-dependent manner. Pretreatment of reactive oxygen species scavenger N-acetyl-L-cysteine (NAC), particularly mitochondrial reactive oxygen species (mtROS) scavengers Mito-TEMPO, effectively inhibited the activation of NLRP3 inflammasome, suggesting that nitrosamines could mediate the activation of NLRP3 inflammasome via mtROS. Furthermore, we found that nitrosamines co-exposure also promoted cell pyroptosis through the NLRP3/caspase-1/GSDMD pathway, which was demonstrated by adding the caspase-1 inhibitor Z-YVAD-FMK and constructing NLRP3 downregulated Het-1A cell line. This study revealed the underlying mechanism of the activation of NLRP3 inflammasome initiated by nitrosamines co-exposure and provided new perspectives on the toxic effects of nitrosamines.
Collapse
Affiliation(s)
- Qiwei Liu
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Chao Zhao
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Jingjing Zhou
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Hu Zhang
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Ying Zhang
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Shizhi Wang
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Yuepu Pu
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| | - Lihong Yin
- Laboratory of Environmental Medicine Engineering, Ministry of Education of China, School of Public Health, Southeast University, Nanjing, China
| |
Collapse
|
9
|
Liu X, Zhang T, Li X, Ai S, Zhou S. Non-enzymatic electrochemical sensor based on AuNPs/Cu-N-C composite for efficient nitrite sensing in sausage sample. NEW J CHEM 2022. [DOI: 10.1039/d2nj01640k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nitrogen-doped carbon materials have attracted enormous attention in the detection fields for the high catalytic activity. Herein, Cu-N-C materials were synthesized by template method and used for constructing non-enzymatic electrochemical...
Collapse
|
10
|
Moradi S, Shariatifar N, Akbari-adergani B, Molaee Aghaee E, Arbameri M. Analysis and health risk assessment of nitrosamines in meat products collected from markets, Iran: with the approach of chemometric. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:1361-1371. [PMID: 34900272 PMCID: PMC8617244 DOI: 10.1007/s40201-021-00692-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/09/2021] [Indexed: 05/05/2023]
Abstract
The aim of study was evaluate of the concentration and health risk of nitrosamines in 150 meat products samples by using gas chromatography coupled with mass spectrometry (GC/MS), with the chemometric approach. Among the identified nitrosamines, the levels of N-nitrosopyrrolidine (NPYR), N-nitrosopiperidine (NPIP), and total nitrosamines in meat sausages samples were significantly higher than chicken sausages (p < 0.05). Principal component analysis and heat map visualization confirmed meat percentage and sausages type (meat or chicken) which had significant effects on nitrosamines content. The NPIP and NPYR intake was 1.17E-07 and 2.12E-07 mg/kg bw/day, respectively. The Monte Carlo simulation results indicated that the 95th percentile from NPIP and NPYR based on ILCR index were 9.07E-07 and 4.72E-07, respectively. In conclusion, the carcinogenic risk of nitrosamines was considerably lower than the safe risk limit (CR > 1E-4) recommended by United States Environmental Protection Agency for Iranian population.
Collapse
Affiliation(s)
- Samin Moradi
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nabi Shariatifar
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrouz Akbari-adergani
- Food and Drug Laboratory Research Center, Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran
| | - Ebrahim Molaee Aghaee
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Arbameri
- Food Safety Research Center (salt), Semnan University of Medical Sciences, Semnan, Iran
| |
Collapse
|