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Song J, Song Q, Wang D, Liu Y. Mitigation strategies for excessive cadmium in rice. Compr Rev Food Sci Food Saf 2023; 22:3847-3869. [PMID: 37458295 DOI: 10.1111/1541-4337.13210] [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: 03/10/2023] [Revised: 05/31/2023] [Accepted: 06/22/2023] [Indexed: 09/13/2023]
Abstract
Cadmium (Cd)-contaminated rice is a human food safety problem that lacks a clear solution. A large amount of rice having an excessive Cd content is processed yearly, but it cannot be discarded and placed in landfills because it will cause secondary pollution. How do we best cope with this toxic rice? From the perspectives of food safety, food waste prevention, and human hunger eradication, the use of contemporary physical, chemical, and biological techniques to lower the Cd content in postharvest Cd-contaminated rice so that it can be used safely is the best course of action. In this review, the contamination, chemical speciation, and distribution of Cd in rice are analyzed and discussed, as are the methods of Cd removal from rice, including a comparison of the advantages and disadvantages of various techniques. Owing to the limitations of current technology, research and technological development recommendations for removing Cd from rice grain are presented. The chemical and biological methods produce higher Cd-removal rates than physical methods. However, they are limited to small-scale laboratory applications and cannot be applied on a large industrial scale. For the efficient safe removal of Cd from food, mixed fermentation with lactic acid bacteria and yeast has good application prospects. However, limited strains having high Cd-removal rates have been screened. In addition, modern biotechnology has rarely been applied to reduce rice Cd levels. Therefore, applying genetic engineering techniques to rapidly obtain microorganisms with high Cd-removal rates in rice should be the focus of future research.
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Affiliation(s)
- Jun Song
- Institute of Agricultural Quality Standards and Testing Technology, Sichuan Academy of Agricultural sciences, Chengdu, PR China
- Chengdu Center for Food Quality Supervision, Inspection and Testing, Ministry of Agriculture and Rural Affairs, Chengdu, PR China
| | - Qiuchi Song
- College of Agronomy, Sichuan Agricultural University, Chengdu, PR China
| | - Dong Wang
- Sichuan Academy of Agricultural sciences, Chengdu, PR China
| | - Yonghong Liu
- Chengdu Center for Food Quality Supervision, Inspection and Testing, Ministry of Agriculture and Rural Affairs, Chengdu, PR China
- Sichuan Academy of Agricultural sciences, Chengdu, PR China
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2
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Gupta A, Tiwari RK, Agnihotri R, Padalia K, Mishra S, Dwivedi S. A critical analysis of various post-harvest arsenic removal treatments of rice and their impact on public health due to nutrient loss. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1073. [PMID: 37615784 DOI: 10.1007/s10661-023-11669-w] [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: 02/02/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023]
Abstract
Rice (Oryza sativa L.) is particularly susceptible to arsenic (As) accumulation. Currently, to decrease the level of As accumulated in rice, various post-harvest methods, i.e., polishing, parboiling, pH-dependent soaking, washing, and cooking at different rice-to-water ratios (r/w), are being focused, because it removes significant amount of As from rice grain. Depending upon the rice variety and type, i.e., rough (with husk), husked (without husk/brown), or polished rice, these methods can remove 39-54% As by parboiling, 38-55% by polishing, 37-63% by soaking, and 6-80% by washing and cooking. Infants are highly vulnerable to As exposure; thus, these methods can be helpful for the production of rice-based infant foods. Although concern arises during the use of these methods that apart from decreasing the level of As in rice grain, they also lead to a significant loss of nutrients, such as macro- and micro-elements present in rice. Among these discussed methods, parboiling curtails 5-59%, polishing curtails 6-96%, soaking curtails 33-83%, and washing and cooking in different r/w reduce 8-81% of essential nutrients resulting in 2-90% reduction in contribution to the RDI of these nutrients through rice-based diet. Thus, these post-harvest arsenic removal methods, although reduce arsenic induced health hazard, but may also lead to malnutrition and compromised health in the population based on rice diet. There is a need to explore another way to reduce As from rice without compromising the nutrient availability or to supplement these nutrients through grain enrichment or by introducing additional dietary sources by changing eating habits; however, this may impose an extra economic burden on people.
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Affiliation(s)
- Apoorv Gupta
- Department of Chemistry, University of Lucknow, Lucknow, 226007, India
| | - Ravi Kumar Tiwari
- Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Ruchi Agnihotri
- Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Kalpana Padalia
- Analytical Chemistry Division, CSIR-Indian Institute of Toxicology Research, Lucknow, 226001, India
| | - Seema Mishra
- Department of Chemistry, University of Lucknow, Lucknow, 226007, India.
| | - Sanjay Dwivedi
- Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India.
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3
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Navaretnam R, Hassan HN, Isa NM, Aris AZ, Looi LJ. Metal(loid) Analysis of Commercial Rice from Malaysia using ICP-MS: Potential Health Risk Evaluation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:87695-87720. [PMID: 37423935 DOI: 10.1007/s11356-023-28459-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023]
Abstract
Rice is a predominant staple food in many countries. It is a great source of energy but can also accumulate toxic and trace metal(loid)s from the environment and pose serious health hazards to consumers if overdosed. This study aims to determine the concentration of toxic metal(loid)s [arsenic (As), cadmium (Cd), nickel (Ni)] and essential metal(loid)s [iron (Fe), selenium (Se), copper (Cu), chromium (Cr), cobalt (Co)] in various types of commercially available rice (basmati, glutinous, brown, local whites, and fragrant rice) in Malaysia, and to assess the potential human health risk. Rice samples were digested following the USEPA 3050B acid digestion method and the concentrations of metal(loid)s were analyzed using an inductively coupled plasma mass spectrometry (ICP-MS). Mean concentrations (mg/kg as dry weight) of metal(loid)s (n=45) across all rice types were found in the order of Fe (41.37)>Cu (6.51)>Cr (1.91)>Ni (0.38)>As (0.35)>Se (0.07)>Cd (0.03)>Co (0.02). Thirty-three percent and none of the rice samples surpassed, respectively, the FAO/WHO recommended limits of As and Cd. This study revealed that rice could be a primary exposure pathway to toxic metal(loid)s, leading to either noncarcinogenic or carcinogenic health problems. The non-carcinogenic health risk was mainly associated with As which contributed 63% to the hazard index followed by Cr (34%), Cd (2%), and Ni (1%). The carcinogenic risk to adults was high (>10-4) for As, Cr, Cd, and Ni. The cancer risk (CR) for each element was 5 to 8 times higher than the upper limit of cancer risk for an environmental carcinogen (<10-4). The findings from this study could provide the metal(loid)s pollution status of various types of rice which are beneficial to relevant authorities in addressing food safety and security-related issues.
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Affiliation(s)
- Raneesha Navaretnam
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Hadirah Nasuha Hassan
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Noorain Mohd Isa
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia
| | - Ahmad Zaharin Aris
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia
| | - Ley Juen Looi
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
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Mishra S, Dwivedi S, Gupta A, Tiwari RK. Evaluating the efficacy and feasibility of post harvest methods for arsenic removal from rice grain and reduction of arsenic induced cancer risk from rice-based diet. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162443. [PMID: 36858216 DOI: 10.1016/j.scitotenv.2023.162443] [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: 11/02/2022] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Food-chain arsenic (As) contamination is a severe environmental and health problem worldwide, and its intake through rice affects billions of people. In this review, we have summarized the post harvest As removal methods from rice and their efficacy and feasibility. Rice grain subspecies (indica and japonica), size (short, medium and long), type (husked, parboiled or polished), soaking time, temperature and rice to water ratio (r/w) during washing and cooking are the major factors that affect the removal of total arsenic (tAs) from rice grain. The reduction in tAs was greater in japonica than indica rice and was directly proportional to As in husked rice. For the removal of As, a low water volume (1:2 r/w) was more effective during washing due to friction between rice grains, while high water (≥4 times water) during cooking was more effective. Up to 80 % As was removed by cooking in 1:10 (rice: water). Soaking rice in edible acids such as vinegar, acetic and ascorbic acid was not effective, except citric acid, which removes tAs up to 63 %. Human-health risk assessment showed that these post harvest and cooking methods reduce the non-carcinogenic and incremental lifetime cancer risk by up to 5-fold, as calculated on the basis of bioaccessible inorganic As. These post harvest methods also remove nutrient elements and vitamins. The recommended dietary intake (RDI) of Zn and Cu was particularly affected (up to 40 and 83 %). The levels of P, Mo, Mn and Co were still sufficient to meet the RDI through the rice-based diet, while rice is already poor in the RDI of Ca, K, Fe and Se, and their levels were further reduced by 0.22-44 %. In conclusion, these post harvest and cooking methods may significantly reduce As induced health risks; however, other dietary sources of nutrients need to be carefully evaluated and supplemented.
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Affiliation(s)
- Seema Mishra
- University of Lucknow, Lucknow 226007, India; Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur-273009, India.
| | - Sanjay Dwivedi
- Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow 226001, India.
| | - Apoorv Gupta
- Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur-273009, India
| | - Ravi Kumar Tiwari
- Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Lucknow 226001, India
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5
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Alqahtani D, Alnabati K, Al-Mutairi MA, Alajmi R, Alsaleem T, Almanna S, Alowaifeer AM. The effect of various washing methods on pesticide residues, toxic and essential elements removal in rice. J Food Sci 2023. [PMID: 37191667 DOI: 10.1111/1750-3841.16591] [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: 01/01/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 05/17/2023]
Abstract
This study examined the effects of various treatments on removing pesticide residues and toxic elements in rice. In parallel, nutritional elements, magnesium (Mg), potassium (K), and phosphorous (P), were measured to investigate the effect of these washing treatments on the nutritional value of rice. A naturally contaminated rice sample containing five widespread used pesticides (azoxystrobin, buprofezin, carbendazim, and propiconazole) and toxic elements, arsenic (As), cadmium (Cd), and essential elements, was washed using several washing agents, including boiling water, 5% sodium bicarbonate (baking soda), 5% acetic acid (vinegar), 5% citric acid, and 5% sodium chloride (salt). The washing method was chosen based on its availability and widespread usage; soaking for 10 min was assumed to be reasonable. Our results showed that using 5% acetic acid significantly reduced azoxystrobin by 63%, buprofezin by 70%, carbendazim by 75%, and propiconazole by 61%. However, As and Cd were significantly reduced in sodium chloride by 57% and 32%, respectively. Furthermore, a significant reduction in essential nutrient elements was found in Mg (42%), K (37%), and P (23%) when rice was treated with 5% citric acid. Overall, washing agents reduced analytes in the following manners pesticides, toxic elements, and essential elements when using acetic acid, sodium chloride, and citric acid separately.
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Affiliation(s)
- Dalal Alqahtani
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Khulood Alnabati
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Mohammed A Al-Mutairi
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Rakan Alajmi
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Taghreed Alsaleem
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Sara Almanna
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
| | - Abdullah M Alowaifeer
- Reference Laboratory for Food Chemistry, Saudi Food & Drug Authority (SFDA), Riyadh, Saudi Arabia
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6
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Yang X, Yin J, Guo Y, Yu H, Yuan S, Qian H, Yao W, Song J. Ultrasound-Assisted Fermentation to Remove Cadmium from Rice and Its Application. Molecules 2023; 28:molecules28104127. [PMID: 37241867 DOI: 10.3390/molecules28104127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Rice, which is a major part of the daily diet, is becoming more and more contaminated by cadmium (Cd). This study combined low-intensity ultrasonic waves with the Lactobacillus plantarum fermentation method and optimized this technique by a single-factor and response surface experiment, aiming to solve the practical problems that the current Cd removal methods for rice cannot address, due to the fact that they require a long time (nearly 24 h), which prevents meeting the rice production demands. The described technique required a short time (10 h), and the highest Cd removal reached 67.05 ± 1.38%. Further analysis revealed that the maximum adsorption capacity of Lactobacillus plantarum for Cd increased by nearly 75%, and the equilibrium adsorption capacity increased by almost 30% after the ultrasonic intervention. Additionally, a sensory evaluation and other experiments proved that the properties of the rice noodles prepared from Cd-reduced rice obtained by ultrasound-assisted fermentation were comparable to those of traditional rice noodles, indicating that this method can be used in actual rice production.
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Affiliation(s)
- Xiaotong Yang
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jie Yin
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hang Yu
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jiangfeng Song
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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Limmer MA, Webb SM, Seyfferth AL. Evaluation of quantitative synchrotron radiation micro-X-ray fluorescence in rice grain. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:407-416. [PMID: 36891854 PMCID: PMC10000813 DOI: 10.1107/s1600577523000747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Concentrations of nutrients and contaminants in rice grain affect human health, specifically through the localization and chemical form of elements. Methods to spatially quantify the concentration and speciation of elements are needed to protect human health and characterize elemental homeostasis in plants. Here, an evaluation was carried out using quantitative synchrotron radiation microprobe X-ray fluorescence (SR-µXRF) imaging by comparing average rice grain concentrations of As, Cu, K, Mn, P, S and Zn measured with rice grain concentrations from acid digestion and ICP-MS analysis for 50 grain samples. Better agreement was found between the two methods for high-Z elements. Regression fits between the two methods allowed quantitative concentration maps of the measured elements. These maps revealed that most elements were concentrated in the bran, although S and Zn permeated into the endosperm. Arsenic was highest in the ovular vascular trace (OVT), with concentrations approaching 100 mg kg-1 in the OVT of a grain from a rice plant grown in As-contaminated soil. Quantitative SR-µXRF is a useful approach for comparison across multiple studies but requires careful consideration of sample preparation and beamline characteristics.
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Affiliation(s)
- Matt A. Limmer
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE 19716, USA
| | - Samuel M. Webb
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Angelia L. Seyfferth
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE 19716, USA
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Wang R, Sang P, Guo Y, Jin P, Cheng Y, Yu H, Xie Y, Yao W, Qian H. Cadmium in food: Source, distribution and removal. Food Chem 2023; 405:134666. [DOI: 10.1016/j.foodchem.2022.134666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 10/10/2022] [Accepted: 10/15/2022] [Indexed: 12/07/2022]
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9
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Li M, Guo X, Wen N, Gan Z, Huang Y, Zhang Y, Kang Y, Zeng L. Speciation and bioaccessibility of arsenic in rice under different cooking methods and its implication in risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:87938-87949. [PMID: 35829890 DOI: 10.1007/s11356-022-21895-3] [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: 10/01/2021] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Numerous studies have studied the health risk assessment of human exposure to As or bioaccessible As via rice intake; however, the bioaccessibility of different As species in rice is seldom reported. In the present study, 31 rice samples were collected from markets or individual growers to investigate the speciation and bioaccessibility of As. Five different species (AsIII, AsV, DMA, MMA, and AsB) were detected in rice samples from different regions, among which AsIII accounted for the largest proportion (62.95% in average), followed by DMA and AsV. In addition, the cooking method could facilitate the release of As from rice into gastric and intestinal juice, and subsequently increase the bioaccessibility of As. The bioaccessibility of inorganic As in cooked rice ranged from 71.83 to 100%, and that of organic As ranged from 31.69 to 61.04%. Non-carcinogenic and carcinogenic risk assessment of children and adults exposure to As via rice intake considering the bioaccessibility of cooked rice was carried out. The target hazard quotient (THQ) of iAs and total As for children ranged from 0.21 to 1.61 and 0.48 to 2.26, respectively, while those for adults ranged from 0.12 to 0.88 and 0.26 to 1.23, respectively. Incremental lifetime cancer risk (ILCR) for children and adults ranged from 9.57 [Formula: see text] 10-5 to 7.25 [Formula: see text] 10-4 and 5.21 [Formula: see text] 10-5 to 3.95 [Formula: see text] 10-4, respectively. The results of risk assessment indicated that children would face a higher health risk than adults when they took the same type of rice as their staple food.
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Affiliation(s)
- Meihui Li
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
| | - Xiaoyuan Guo
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau SAR, 999078, China
| | - Nihong Wen
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
| | - Zijun Gan
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
| | - Yanru Huang
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
| | - Yuanbo Zhang
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
| | - Yuan Kang
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China
| | - Lixuan Zeng
- School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, 510006, People's Republic of China.
- Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China.
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Mridha D, Gorain PC, Joardar M, Das A, Majumder S, De A, Chowdhury NR, Lama U, Pal R, Roychowdhury T. Rice grain arsenic and nutritional content during post harvesting to cooking: A review on arsenic bioavailability and bioaccessibility in humans. Food Res Int 2022; 154:111042. [DOI: 10.1016/j.foodres.2022.111042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/20/2022] [Accepted: 02/16/2022] [Indexed: 12/28/2022]
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11
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Rezaei M, Alizadeh Sani M, Amini M, Shariatifar N, Alikord M, Arabameri M, Chalipour A, Hazrati Reziabad R. Influence of cooking process on the content of water-soluble B vitamins in rice marketed in Iran. Food Sci Nutr 2022; 10:460-469. [PMID: 35154682 PMCID: PMC8825727 DOI: 10.1002/fsn3.2690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to analyze the effect of cooking method on thiamin (B1), riboflavin (B2), and pyridoxine (B6) vitamin content of rice samples consumed in Iran by using high-performance liquid chromatography technique. The amount of B1, B2, and B6 obtained ranged from 2.98 to 15.89, 1.15 to 22.19, and 0.96 to 4.44 μg/g, respectively, for the boiling method. In the traditional method, these vitamins had a concentration between 4.09 and 29.55, 4.87 and 16.19, and 1.52 and 12.18 μg/g, respectively. However, limit of detection (LOD) values for B1, B2, and B6 vitamins were 0.159, 0.090, and 0.041 μg/ml, respectively. Multivariate methods and heatmap visualization were applied to estimate the correlation among the type and amount of vitamins and cooking methods. According to heatmap findings, B1 and B6 vitamins and the cooking method had the closest accessions, representing that this variable had similar trends. Nevertheless, it can be concluded that the traditional cooking method can maintain more vitamins in rice samples.
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Affiliation(s)
- Mohammad Rezaei
- Department of Environmental Health EngineeringSchool of Public HealthTehran University of Medical SciencesTehranIran
| | - Mahmood Alizadeh Sani
- Department of Environmental Health EngineeringSchool of Public HealthTehran University of Medical SciencesTehranIran
| | - Mohsen Amini
- Department of Medicinal ChemistryFaculty of PharmacyDrug Design and Development Research CenterThe Institute of Pharmaceutical Sciences (TIPS)Tehran University of Medical SciencesTehranIran
| | - Nabi Shariatifar
- Department of Environmental Health EngineeringSchool of Public HealthTehran University of Medical SciencesTehranIran
| | - Mahsa Alikord
- Department of Environmental Health EngineeringSchool of Public HealthTehran University of Medical SciencesTehranIran
| | - Majid Arabameri
- Food Safety Research Center (salt)Semnan University of Medical SciencesSemnanIran
| | - Anita Chalipour
- Food and Drug AdministrationTehran University of Medical SciencesTehranIran
| | - Reza Hazrati Reziabad
- Department of Environmental Health EngineeringSchool of Public HealthTehran University of Medical SciencesTehranIran
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12
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Zhao F, Zhang H, Yan P, Chen Y, Wu Q, Fang M, Wu Y, Gong Z. Synthesis of coimmobilized microorganisms for the removal of cadmium from cadmium-contaminated rice flour. Food Sci Nutr 2021; 9:4509-4516. [PMID: 34401098 PMCID: PMC8358380 DOI: 10.1002/fsn3.2427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/02/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022] Open
Abstract
China has the greatest rice production in the world, but the problem of heavy metal pollution in rice is becoming increasingly serious. The present study examined a microbial immobilization method to remove cadmium (Cd) in rice flour. The study demonstrated that Lactobacillus plantarum (L. plantarum) exhibited the best removal effect, but the microorganisms were difficult to separate from rice flour. Diatomaceous earth coimmobilized microbial pellets (DECIMPs) were prepared using coimmobilized L. plantarum with sodium alginate (SA, 3%), polyvinyl alcohol (PVA, 2%), and diatomaceous earth (DE, 1%). Compared with microbial fermentation, the immobilized pellets had less influence on rice quality, and Cd removal rates of sample 1 (0.459 ± 0.006 mg/kg) and 2 (0.873 ± 0.031 mg/kg) reached 90.01% ± 1.01% (0.051 ± 0.003 mg/kg) and 91.80% ± 0.54% (0.068 ± 0.034 mg/kg), which were significantly higher than free microbial fermentation. In addition, microbial was easily separated. These results show that DECIMPs fermentation is an effective means of removing Cd from rice and could be considered as a strategy for the development of Cd-free rice-based foods.
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Affiliation(s)
- Fang Zhao
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Hu Zhang
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Pianpian Yan
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Yuwei Chen
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Qian Wu
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Min Fang
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk AssessmentFood Safety Research Unit (2019RU014) of Chinese Academy of Medical ScienceChina National Center for Food Safety Risk AssessmentBeijingChina
| | - Zhiyong Gong
- Key Laboratory for Deep Processing of Major Grain and Oil of Ministry of EducationWuhan Polytechnic UniversityWuhanChina
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13
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Luo Y, Duan Z, Wu Y. Risk Assessment for Oral Bioaccessibility of Lead and Cadmium in the Potato Growing in Smelter-Impacted Soil. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:363-369. [PMID: 33439273 DOI: 10.1007/s00128-020-03099-y] [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: 09/11/2020] [Accepted: 12/25/2020] [Indexed: 06/12/2023]
Abstract
Smelting activities are an important source of heavy metals in soil. More seriously, oral ingestion of crops growing in contaminated soil potentially cause harmful effects on human health. The main purpose of this study is to apply the in vitro model (PBET) and Monte Carlo Simulation (MSC) to the health risk assessment process in order to more accurately and realistically evaluate health risks of residents eating contaminated potato. Results indicated in the raw and cooked potato, the bioaccessibility of Pb was 65.9% and 74.5%, and that of Cd was 79.6% and 61.7%, respectively. Additionally, the bioaccessible hazard quotient (BHQ) was less than the permitted level except for the BHQ of Pb for children. This indicated there wasn't potential non-carcinogenic risk for most potato-consumers but the dietary exposure risk for local children cannot be neglected. Sensitivity analysis showed that the bioaccessibility and ingestion rate appeared decisive with respect to potentially deleterious health effects.
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Affiliation(s)
- Yang Luo
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Zhibin Duan
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Yonggui Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
- Institute of Applied Ecology, Guizhou University, Guiyang, 550025, China.
- Guizhou Kast Environmental Ecosystem Observation and Research Station, Ministry of Education, Guiyang, 550025, China.
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14
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Luo Z, Duan H, Yang Y, Zhang W, Ramaswamy HS, Wang C. Ultrasound assisted extraction of cadmium for decontamination of rice and its influence on structure/texture of cooked rice. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2020.103142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Mohapatra D, Patel AS, Kar A, Deshpande SS, Tripathi MK. Effect of different processing conditions on essential minerals and heavy metal composition of sorghum grain. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Debabandya Mohapatra
- Agro Produce Processing Division ICAR‐Central Institute of Agricultural Engineering Bhopal India
| | - Avinash Singh Patel
- Division of Food Science and Post Harvest Indian Agricultural Research Institute New Delhi India
- Department of Food Science and Human Nutrition School of Food and Agriculture University of Maine Orono ME USA
| | - Abhijit Kar
- Division of Food Science and Post Harvest Indian Agricultural Research Institute New Delhi India
| | - Sumedha S. Deshpande
- Agro Produce Processing Division ICAR‐Central Institute of Agricultural Engineering Bhopal India
| | - Manoj Kumar Tripathi
- Agro Produce Processing Division ICAR‐Central Institute of Agricultural Engineering Bhopal India
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16
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Shariatifar N, Rezaei M, Alizadeh Sani M, Alimohammadi M, Arabameri M. Assessment of Rice Marketed in Iran with Emphasis on Toxic and Essential Elements; Effect of Different Cooking Methods. Biol Trace Elem Res 2020; 198:721-731. [PMID: 32189243 DOI: 10.1007/s12011-020-02110-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/03/2020] [Indexed: 01/09/2023]
Abstract
Rice is one of the most valuable nutrients in the diet of most people in the world. The aim of this study was to evaluate the effect of various pre-cooking (washing, soaking) and cooking processes (traditional and rinse) of rice on the amount of toxic and essential elements in the various brands of rice in Iran and assessing human health risks from their carcinogenic and non-carcinogenic effects. For this purpose, totally, 144 sample sizes were examined from three brand (Iranian (n = 48), Pakistani (n = 48), and Indian (n = 48)) in order to the amount of toxic and essential elements using inductively coupled plasma-optical emission spectrometry. The results showed that pre-cooking processes such as washing and soaking in the rinse method were significantly effective in removal toxic metals than the traditional method, so that the most changes were observed for potassium and aluminum metals. The estimated daily intakes of copper, magnesium, manganese, iron, and zinc in different cooking methods were 1.19-1.2%, 0.29-0.32%, 1.01-1.23%, 0.4-0.98%, and 0.9-1.32%, respectively. The Monte Carlo simulation results showed that the rank order of toxic metals of cooked rice based on target hazard quotients value was arsenic > chromium > cadmium > mercury > lead > aluminum, respectively. The result of cancer risk probability was lower than the safe risk limits (1E-4), representing no remarkable cancer risk probability that was due to ingestion of rice for adults and children in Iran. According to the this results, it is recommended to use the rinse method due to further reduction of metals especially toxic metals for rice samples, although the amount of essential elements was also removed by this method.
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Affiliation(s)
- Nabi Shariatifar
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Halal Research Center of Islamic Republic of Iran, Tehran, Iran
| | - Mohammad Rezaei
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Food Hygiene, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Mahmood Alizadeh Sani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Alimohammadi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Arabameri
- Vice-chancellery of food and drug, Shahroud University of Medical Sciences, Shahroud, Iran
- Food Safety Research Center (salt), Semnan University of Medical Sciences, Semnan, Iran
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17
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Medina MB, Munitz MS, Resnik SL. Effect of household rice cooking on pesticide residues. Food Chem 2020; 342:128311. [PMID: 33051103 DOI: 10.1016/j.foodchem.2020.128311] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 01/30/2023]
Abstract
This investigation shows the pesticide distribution and reduction using three common household cooking methods. Extraction was performed using QuEChERS and solid phase microextraction methodologies for rice and water, respectively. Gas chromatography-mass spectrometry was used. Both methods showed good linearity (r2 > 0.9996 and 0.9945), adequate recoveries (between 98.9 and 107.8% and 90.5-104.2%) and relative standard deviations lower than 4.5% and 7.0%, for rice and water, respectively. The initial concentration of deltamethrin, penconazole, kresoxim-methyl, cyproconazole, epoxiconazole and azoxystrobin, were 84.9, 242.2, 298.5, 230.7, 253.4 and 293.5 µg/kg, respectively. Washing and soaking water reduce pesticides only 0.40 to 4.28%. The pesticide reduction during cooking were 20.73 to 57.72%, 32.74 to 70.39%, and 68.87 to 87.50% for traditional, excess water, and pre-soaking rice methods, respectively. Pre-soaking rice with extra water before cooking proved to be the method that generates the greatest reduction.
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Affiliation(s)
- María Belén Medina
- Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Concordia, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CABA, Argentina
| | - Martín Sebastián Munitz
- Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Concordia, Argentina.
| | - Silvia Liliana Resnik
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), La Plata, Argentina; Fundación de Investigaciones Científicas Teresa Benedicta de la Cruz, Luján, Buenos Aires, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, CABA, Argentina
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18
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Bonto AP, Jearanaikoon N, Sreenivasulu N, Camacho DH. High uptake and inward diffusion of iron fortificant in ultrasonicated milled rice. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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19
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Bioaccessibility analysis of toxic metals in consumed rice through an in vitro human digestion model – Comparison of calculated human health risk from raw, cooked and digested rice. Food Chem 2019; 299:125126. [PMID: 31284243 DOI: 10.1016/j.foodchem.2019.125126] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 12/07/2022]
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20
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Sharafi K, Yunesian M, Mahvi AH, Pirsaheb M, Nazmara S, Nabizadeh Nodehi R. Advantages and disadvantages of different pre-cooking and cooking methods in removal of essential and toxic metals from various rice types- human health risk assessment in Tehran households, Iran. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 175:128-137. [PMID: 30897411 DOI: 10.1016/j.ecoenv.2019.03.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/11/2019] [Accepted: 03/13/2019] [Indexed: 12/07/2022]
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21
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Londonio A, Morzán E, Smichowski P. Determination of toxic and potentially toxic elements in rice and rice-based products by inductively coupled plasma-mass spectrometry. Food Chem 2019; 284:149-154. [DOI: 10.1016/j.foodchem.2019.01.104] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/18/2019] [Accepted: 01/20/2019] [Indexed: 11/29/2022]
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22
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Kumarathilaka P, Seneweera S, Ok YS, Meharg A, Bundschuh J. Arsenic in cooked rice foods: Assessing health risks and mitigation options. ENVIRONMENT INTERNATIONAL 2019; 127:584-591. [PMID: 30986740 DOI: 10.1016/j.envint.2019.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
Human exposure to arsenic (As) through the consumption of rice (Oryza sativa L.) is a worldwide health concern. In this paper, we evaluated the major causes for high inorganic As levels in cooked rice foods, and the potential of post-harvesting and cooking options for decreasing inorganic As content in cooked rice, focusing particularly on As endemic areas. The key factors for high As concentration in cooked rice in As endemic areas are: (1) rice cultivation on As-contaminated paddy soils; (2) use of raw rice grains which exceed 200 μg kg-1 of inorganic As to cook rice; and (3) use of As-contaminated water for cooking rice. In vitro and in vivo methods can provide useful information regarding the bioaccessibility of As in the gastrointestinal tract. Urinary levels of As can also be used as a valid measure of As exposure in humans. Polishing of raw rice grains has been found to be a method to decrease total As content in cooked rice. Sequential washing of raw rice grains and use of an excess volume of water for cooking also decrease As content in cooked rice. The major concern with those methods (i.e. polishing of raw rice, sequential washing of raw rice, and use of excess volume of water for cooking rice) is the decreased nutrient content in the cooked rice. Cooking rice in percolating water has recently gained significant attention as a way to decrease As content in cooked rice. Introducing and promoting rainwater harvesting systems in As endemic areas may be a sustainable way of reducing the use of As-contaminated water for cooking purposes. In conclusion, post-harvesting methods and changes in cooking practices could reduce As content in cooked rice to a greater extent. Research gaps and directions for future studies in relation to different post-harvesting and cooking practices, and rainwater harvesting systems are also discussed in this review.
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Affiliation(s)
- Prasanna Kumarathilaka
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland, 4350, Australia
| | - Saman Seneweera
- Centre for Crop Health, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland, 4350, Australia; National Institute of Fundamental Studies, Hantana Road, Kandy, 20000, Sri Lanka
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea
| | - Andrew Meharg
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast, BT9 5BN, United Kingdom
| | - Jochen Bundschuh
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland, 4350, Australia; UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba, Queensland, 4350, Australia.
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23
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Sharafi K, Yunesian M, Nodehi RN, Hossein Mahvi A, Pirsaheb M, Nazmara S. The reduction of toxic metals of various rice types by different preparation and cooking processes – Human health risk assessment in Tehran households, Iran. Food Chem 2019; 280:294-302. [PMID: 30642500 DOI: 10.1016/j.foodchem.2018.12.060] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/11/2018] [Accepted: 12/11/2018] [Indexed: 12/07/2022]
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24
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Liu K, Zheng J, Wang X, Chen F. Effects of household cooking processes on mineral, vitamin B, and phytic acid contents and mineral bioaccessibility in rice. Food Chem 2019; 280:59-64. [DOI: 10.1016/j.foodchem.2018.12.053] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/10/2018] [Accepted: 12/10/2018] [Indexed: 01/18/2023]
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25
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Zou Y, Zhang C, Ju X, Wang Z, Wu Y, Yuan J, Chen W, He R. Effect of removing cadmium with citric acid on the physicochemical and microstructure properties of rice bran. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.11.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Sharafi K, Yunesian M, Nodehi RN, Mahvi AH, Pirsaheb M. A systematic literature review for some toxic metals in widely consumed rice types (domestic and imported) in Iran: Human health risk assessment, uncertainty and sensitivity analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 176:64-75. [PMID: 30921698 DOI: 10.1016/j.ecoenv.2019.03.072] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 03/11/2019] [Accepted: 03/17/2019] [Indexed: 12/07/2022]
Abstract
In present study we aimed to investigate the literature in the form of systematic review to determinate the concentrations of some toxic metals (arsenic, lead, and cadmium) in widely consumed rice brands in Iran and their related health risks. International and Iranian national databases were searched carefully with appropriate keywords for papers on toxic metal contamination of rice from Agust-2000 to Agust-2018. Initially, 560 articles were found, of which only the 50 papers fit the inclusion criteria and were selected for further analysis. The Monte Carlo Simulation was applied to generate missing data (mean, standard deviation, data distribution and sample size) of toxic metal concentration in some papers. Then, statistical analysis, health risk assessment, and uncertainty and sensitivity analysis were performed. The results indicated that approximately 88% of rice consumed in Iran (including Iranian, Pakistani and Indian rice) do not meet the national standard and WHO/FAO guideline requirements and their related health risks are unacceptable. The risks of arsenic and lead in Indian rice and cadmium in Iranian rice were considerably higher than others. In conclusion, according to our findings, In conclusion, it is necessary to prevent toxic metals contamination of rice by modifying cultivation patterns and, also, prevent low-quality rice brands to be imported.
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Affiliation(s)
- Kiomars Sharafi
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Research Methodology and Data Analysis (CRMDA), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
| | - Ramin Nabizadeh Nodehi
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
| | - Amir Hossein Mahvi
- Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Solid Waste Research (CSWR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Meghdad Pirsaheb
- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
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27
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28
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Sofuoglu SC, Sofuoglu A. An exposure-risk assessment for potentially toxic elements in rice and bulgur. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:987-998. [PMID: 28397064 DOI: 10.1007/s10653-017-9954-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
Rice and wheat are rich sources of essential elements. However, they may also accumulate potentially toxic elements (PTE). Bulgur, the popular alternative to rice in the eastern Mediterranean, is produced by processing wheat, during which PTE content may change. This study determined PTE concentrations in rice and bulgur collected from 50 participant households in the city of Izmir, Turkey, estimated ingestion exposure, and associated chronic-toxic and carcinogenic human health risks. Comparison of the determined concentrations to the available standard levels and the levels reported in the literature revealed that Cd, Co, and Pb in rice might be of concern. The estimated health risks of individual participants supported this result with exceedance of respective threshold or acceptable risk levels at the 95th percentile. Population risk estimates indicated that the proportion with higher than the threshold or acceptable risk is about 10, 24, and 12% for Cd, Co, and Pb in rice, respectively. Results of this study showed that health risks associated with PTE exposure through bulgur consumption are lower than those of rice, and below the threshold or acceptable risk levels.
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Affiliation(s)
- Sait C Sofuoglu
- Department of Chemical Engineering, Izmir Institute of Technology, Gulbahce, Urla, 35430, Izmir, Turkey.
- Department of Environmental Engineering, Izmir Institute of Technology, Gulbahce, Urla, 35430, Izmir, Turkey.
| | - Aysun Sofuoglu
- Department of Chemical Engineering, Izmir Institute of Technology, Gulbahce, Urla, 35430, Izmir, Turkey
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29
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Risk and Benefit of Different Cooking Methods on Essential Elements and Arsenic in Rice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15061056. [PMID: 29882885 PMCID: PMC6025416 DOI: 10.3390/ijerph15061056] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/15/2018] [Accepted: 05/21/2018] [Indexed: 11/16/2022]
Abstract
Use of excess water in cooking of rice is a well-studied short-term arsenic removal technique. However, the outcome on the nutritional content of rice is not well addressed. We determined the benefit of different cooking techniques on arsenic removal and the associated risk of losing the essential elements in rice. Overall, we found 4.5%, 30%, and 44% decrease in the arsenic content of rice when cooked with rice-to-water ratios of 1:3, 1:6 (p = 0.004), and 1:10 (parboiling; p < 0.0001), respectively. All the essential elements (except iron, selenium, and copper) incurred a significant loss when rice was cooked using the 1:6 technique: potassium (50%), nickel (44.6%), molybdenum (38.5%), magnesium (22.4%), cobalt (21.2%), manganese (16.5%), calcium (14.5%), selenium (12%), iron (8.2%), zinc (7.7%), and copper (0.2%) and further reduction was observed on parboiling, except for iron. For the same cooking method (1:6), percentage contribution to the recommended daily intake (RDI) of essential elements was highest for molybdenum (154.7%), followed by manganese (34.5%), copper (33.4%), selenium (13.1%), nickel (12.4%), zinc (10%), magnesium (8%), iron (6.3%), potassium (1.8%), and calcium (0.5%). Hence, cooked rice as a staple is a poor source for essential elements and thus micronutrients.
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30
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Stochastic exposure and health risk assessment of rice contamination to the heavy metals in the market of Iranshahr, Iran. Food Chem Toxicol 2018; 115:405-412. [DOI: 10.1016/j.fct.2018.03.040] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/18/2018] [Accepted: 03/28/2018] [Indexed: 11/16/2022]
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31
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Jaafar M, Marcilla AL, Felipe-Sotelo M, Ward NI. Effect of food preparation using naturally-contaminated groundwater from La Pampa, Argentina: Estimation of elemental dietary intake from rice and drinking water. Food Chem 2018; 246:258-265. [DOI: 10.1016/j.foodchem.2017.11.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 10/18/2022]
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32
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Yim SR, Kim JH, Choi MH, Park GY, Shim SM, Chung MS. Systematic Investigation of the Reduction of Inorganic Arsenic and Bioactive Nutrients in Rice with Various Cooking Techniques. J Food Prot 2017; 80:1924-1932. [PMID: 29053420 DOI: 10.4315/0362-028x.jfp-17-095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/29/2017] [Indexed: 11/11/2022]
Abstract
The objectives of this study were to investigate the effect of polishing, stirring and rinsing, soaking, or pressure-steam cooking on total organic and inorganic arsenic content and to measure daily inorganic arsenic exposure and nutrient values from consumption of rice prepared under the optimal process. With increasing numbers of rinses and times stirred per rinse, the total arsenic content significantly decreased by 27.6% in brown rice and 39.0% in white rice with 10% degree of polishing (10DOP%). The increase in ratio of water to rice from 1.5:1 to 6:1 reduced total arsenic by 4.4 to 7.5%, depending on soaking time. The total arsenic concentrations found in samples prepared using the optimal process for cooked brown rice and for white rice with 5DOP%, 7DOP%, and 10DOP% were 56.1, 49.6, 52.0, and 42.0%, respectively, compared with those after bran residues were removed. The concentration of total dietary fiber in 10DOP% white and brown rice was 0.34 mg/100 g (54.7% reduction) and 2.52 mg/100 g (24.8% reduction) after the cooking process, respectively. Results from the current study suggest that the optimal cooking process could maximize the reduction of arsenic contents and, at the same time, minimize the loss of nutrients from rice.
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Affiliation(s)
- Sang-Ryun Yim
- Department of Food Science and Technology, Sejong University, Seoul, 134-747, Korea
| | - Ji Hyun Kim
- Department of Food Science and Technology, Chung-Ang University, Anseong, 456-756, Korea
| | - Mi-Hee Choi
- Department of Food Science and Technology, Sejong University, Seoul, 134-747, Korea
| | - Ga Young Park
- Department of Food Science and Technology, Chung-Ang University, Anseong, 456-756, Korea
| | - Soon-Mi Shim
- Department of Food Science and Technology, Sejong University, Seoul, 134-747, Korea
| | - Myung-Sub Chung
- Department of Food Science and Technology, Chung-Ang University, Anseong, 456-756, Korea
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33
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Xia J, Fang Y, Chen Y, Pan Y, Li P, Xue M, Hu Q. Lead speciation analysis in rice by reversed phase chromatography with inductively coupled plasma mass spectrometry. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Cubadda F, Jackson BP, Cottingham KL, Van Horne YO, Kurzius-Spencer M. Human exposure to dietary inorganic arsenic and other arsenic species: State of knowledge, gaps and uncertainties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:1228-1239. [PMID: 27914647 PMCID: PMC5207036 DOI: 10.1016/j.scitotenv.2016.11.108] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 11/07/2016] [Accepted: 11/17/2016] [Indexed: 04/15/2023]
Abstract
Inorganic arsenic (iAs) is ubiquitous in the environment as arsenite (AsIII) and arsenate (AsV) compounds and biotransformation of these toxic chemicals leads to the extraordinary variety of organoarsenic species found in nature. Despite classification as a human carcinogen based on data from populations exposed through contaminated drinking water, only recently has a need for regulatory limits on iAs in food been recognized. The delay was due to the difficulty in risk assessment of dietary iAs, which critically relies on speciation analysis providing occurrence data for iAs in food - and not simply for total arsenic. In the present review the state of knowledge regarding arsenic speciation in food and diet is evaluated with focus on iAs and human exposure assessment through different dietary approaches including duplicate diet studies, market basket surveys, and total diet studies. The analytical requirements for obtaining reliable data for iAs in food are discussed and iAs levels in foods and beverages are summarized, along with information on other (potentially) toxic co-occurring organoarsenic compounds. Quantitative exposure assessment of iAs in food is addressed, focusing on the need of capturing variability and extent of exposure and identifying what dietary items drive very high exposure for certain population groups. Finally, gaps and uncertainties are discussed, including effect of processing and cooking, and iAs bioavailability.
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Affiliation(s)
- Francesco Cubadda
- Department of Food Safety and Veterinary Public Health, Istituto Superiore di Sanità-Italian National Institute of Health, Rome, Italy.
| | - Brian P Jackson
- Department of Earth Sciences, Dartmouth College, Hanover, NH, USA
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Arslan B, Djamgoz MBA, Akün E. ARSENIC: A Review on Exposure Pathways, Accumulation, Mobility and Transmission into the Human Food Chain. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 243:27-51. [PMID: 28005215 DOI: 10.1007/398_2016_18] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This review deals with exposure pathways of arsenic (As), as well as its transfer and uptake processes from its source to the human body. It is proven fact that uptake of inorganic As for a long period can lead to chronic As poisoning and a variety of adverse health effects such as skin, lung and bladder cancer, in addition to cardiovascular diseases, diabetes and gastrointestinal symptoms. As exposure occurs primarily from consumption of potable water containing high amounts of inorganic As and also from consumption of crops cultivated in As contaminated agricultural fields-either naturally or anthropogenically through contaminated air or pesticides-or irrigated with As containing water. In this review, light is shed on the transfer mechanism of As through the food chain and the parameters that enhance mobility of As in the environment. Amounts of As accumulation in plants and the transfer mechanisms are also quite different. These differences in As accumulation, such as in leaves, stems, fruits and roots, are discussed in detail. Moreover, presence of As in some vegetables consumed is given by investigating recent research articles that deal with As concentrations, especially in edible parts. Some comparative data are also presented, concerning the level of concentration of As in rice during washing, cooking and processing stages.
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Affiliation(s)
- Beste Arslan
- Faculty of Engineering, Biotechnology Research Centre, Cyprus International University, Haspolat, Mersin 10, Nicosia, Northern Cyprus, Turkey.
| | - Mustafa B A Djamgoz
- Faculty of Engineering, Biotechnology Research Centre, Cyprus International University, Haspolat, Mersin 10, Nicosia, Northern Cyprus, Turkey
- Division of Cell and Molecular Biology, Neuroscience Solutions to Cancer Research Group, Imperial College London, Sir Alexander Fleming Building, South Kensington Campus, London, SW7 2AZ, UK
| | - Ertan Akün
- Faculty of Engineering, Biotechnology Research Centre, Cyprus International University, Haspolat, Mersin 10, Nicosia, Northern Cyprus, Turkey
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Brizio P, Benedetto A, Squadrone S, Curcio A, Pellegrino M, Ferrero M, Abete MC. Heavy metals and essential elements in Italian cereals. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2016; 9:261-267. [DOI: 10.1080/19393210.2016.1209572] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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de Oliveira RM, Antunes ACN, Vieira MA, Medina AL, Ribeiro AS. Evaluation of sample preparation methods for the determination of As, Cd, Pb, and Se in rice samples by GF AAS. Microchem J 2016. [DOI: 10.1016/j.microc.2015.09.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sadiq N, Beauchemin D. Optimization of the operating conditions of solid sampling electrothermal vaporization coupled to inductively coupled plasma optical emission spectrometry for the sensitive direct analysis of powdered rice. Anal Chim Acta 2014; 851:23-9. [DOI: 10.1016/j.aca.2014.09.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 09/06/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
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39
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Woll AR, Agyeman-Budu D, Choudhury S, Coulthard I, Finnefrock AC, Gordon R, Hallin E, Mass J. Lithographically-fabricated channel arrays for confocal x-ray fluorescence microscopy and XAFS. ACTA ACUST UNITED AC 2014. [DOI: 10.1088/1742-6596/493/1/012028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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Speciated arsenic concentrations, exposure, and associated health risks for rice and bulgur. Food Chem Toxicol 2014; 64:184-91. [DOI: 10.1016/j.fct.2013.11.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 11/19/2013] [Accepted: 11/22/2013] [Indexed: 11/24/2022]
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41
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Srinuttrakul W, Busamongkol A. Elemental Analysis of Brown Rice by Inductively Coupled Plasma Atomic Emission Spectrometry and Instrumental Neutron Activation Analysis. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.egypro.2014.07.135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Sugár É, Tatár E, Záray G, Mihucz VG. Relationship between arsenic content of food and water applied for food processing. Food Chem Toxicol 2013; 62:601-8. [DOI: 10.1016/j.fct.2013.09.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 09/14/2013] [Accepted: 09/21/2013] [Indexed: 11/27/2022]
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Gunduz S, Akman S. Determination of lead in rice grains by solid sampling HR-CS GFAAS. Food Chem 2013; 141:2634-8. [DOI: 10.1016/j.foodchem.2013.05.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 04/23/2013] [Accepted: 05/07/2013] [Indexed: 10/26/2022]
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Horner NS, Beauchemin D. The effect of cooking and washing rice on the bio-accessibility of As, Cu, Fe, V and Zn using an on-line continuous leaching method. Anal Chim Acta 2013; 758:28-35. [DOI: 10.1016/j.aca.2012.11.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 11/03/2012] [Accepted: 11/08/2012] [Indexed: 11/29/2022]
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Donner E, Punshon T, Guerinot ML, Lombi E. Functional characterisation of metal(loid) processes in planta through the integration of synchrotron techniques and plant molecular biology. Anal Bioanal Chem 2012; 402:3287-98. [PMID: 22200921 PMCID: PMC3913160 DOI: 10.1007/s00216-011-5624-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 11/25/2011] [Accepted: 11/28/2011] [Indexed: 02/03/2023]
Abstract
Functional characterisation of the genes regulating metal(loid) homeostasis in plants is a major focus for phytoremediation, crop biofortification and food security research. Recent advances in X-ray focussing optics and fluorescence detection have greatly improved the potential to use synchrotron techniques in plant science research. With use of methods such as micro X-ray fluorescence mapping, micro computed tomography and micro X-ray absorption near edge spectroscopy, metal(loids) can be imaged in vivo in hydrated plant tissues at submicron resolution, and laterally resolved metal(loid) speciation can also be determined under physiologically relevant conditions. This article focuses on the benefits of combining molecular biology and synchrotron-based techniques. By using molecular techniques to probe the location of gene expression and protein production in combination with laterally resolved synchrotron techniques, one can effectively and efficiently assign functional information to specific genes. A review of the state of the art in this field is presented, together with examples as to how synchrotron-based methods can be combined with molecular techniques to facilitate functional characterisation of genes in planta. The article concludes with a summary of the technical challenges still remaining for synchrotron-based hard X-ray plant science research, particularly those relating to subcellular level research.
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Affiliation(s)
- Erica Donner
- Centre for Environmental Risk Assessment and Remediation, University of South Australia, Building X, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia.
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Affiliation(s)
- Kouichi Tsuji
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Kazuhiko Nakano
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Yoshio Takahashi
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Kouichi Hayashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Chul-Un Ro
- Department of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon, 402-751, Korea
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Lombi E, de Jonge MD, Donner E, Kopittke PM, Howard DL, Kirkham R, Ryan CG, Paterson D. Fast x-ray fluorescence microtomography of hydrated biological samples. PLoS One 2011; 6:e20626. [PMID: 21674049 PMCID: PMC3107226 DOI: 10.1371/journal.pone.0020626] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 05/05/2011] [Indexed: 11/18/2022] Open
Abstract
Metals and metalloids play a key role in plant and other biological systems as some of them are essential to living organisms and all can be toxic at high concentrations. It is therefore important to understand how they are accumulated, complexed and transported within plants. In situ imaging of metal distribution at physiological relevant concentrations in highly hydrated biological systems is technically challenging. In the case of roots, this is mainly due to the possibility of artifacts arising during sample preparation such as cross sectioning. Synchrotron x-ray fluorescence microtomography has been used to obtain virtual cross sections of elemental distributions. However, traditionally this technique requires long data acquisition times. This has prohibited its application to highly hydrated biological samples which suffer both radiation damage and dehydration during extended analysis. However, recent advances in fast detectors coupled with powerful data acquisition approaches and suitable sample preparation methods can circumvent this problem. We demonstrate the heightened potential of this technique by imaging the distribution of nickel and zinc in hydrated plant roots. Although 3D tomography was still impeded by radiation damage, we successfully collected 2D tomograms of hydrated plant roots exposed to environmentally relevant metal concentrations for short periods of time. To our knowledge, this is the first published example of the possibilities offered by a new generation of fast fluorescence detectors to investigate metal and metalloid distribution in radiation-sensitive, biological samples.
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Affiliation(s)
- Enzo Lombi
- Centre for Environmental Risk Assessment and Remediation, University of South Australia, Mawson Lakes, South Australia, Australia.
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Trends in hard X-ray fluorescence mapping: environmental applications in the age of fast detectors. Anal Bioanal Chem 2011; 400:1637-44. [DOI: 10.1007/s00216-011-4829-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 02/16/2011] [Accepted: 02/19/2011] [Indexed: 10/18/2022]
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49
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Use of ion-molecule reactions and methanol addition to improve arsenic determination in high chlorine food samples by DRC-ICP-MS. Talanta 2011; 84:887-94. [PMID: 21482298 DOI: 10.1016/j.talanta.2011.02.026] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2010] [Revised: 02/11/2011] [Accepted: 02/16/2011] [Indexed: 11/20/2022]
Abstract
Direct determination of trace arsenic in high chlorine food samples by ICP-MS is complicated by the presence of ArCl(+) interferences, and the high first ionization energy of As (9.81 eV) also results in low analytical sensitivity in ICP-MS. In this work, two strategies based on ion-molecule reactions were successfully used to eliminate ArCl spectral interference in a dynamic reaction cell (DRC). The interference ion ((40)Ar(35)Cl(+)) was directly removed by the reaction with methane gas, and the background signal was reduced by up to 100-fold at m/z 75. Alternatively, by using molecule oxygen as the reaction gas, (75)As(+) was effectively converted to (75)As(16)O(+) that could be detected at m/z 91 where the background is low. The poor signal intensity of As or AsO was improved 3-4 times by addition of 4% methanol in the analyzed solutions. The limit of quantitation (LOQ) for (75)As (CH(4)-DRC method) and (75)As(16)O (O(2)-DRC method) was 0.8 and 0.3 ng g(-1) and the analytical results of seaweed and yellow croaker standard reference materials were in good agreement with the certified values. As the routine arsenic monitoring method in our laboratory, it was applied to the accuracy determination of 119 high chlorine food samples from eight different markets of Beijing.
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de Jonge MD, Vogt S. Hard X-ray fluorescence tomography--an emerging tool for structural visualization. Curr Opin Struct Biol 2010; 20:606-14. [PMID: 20934872 DOI: 10.1016/j.sbi.2010.09.002] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 09/02/2010] [Accepted: 09/02/2010] [Indexed: 10/19/2022]
Abstract
Hard X-ray fluorescence microscopy is well-suited to in-situ investigations of trace metal distributions within whole, unstained, biological tissue, with sub-parts-per-million detection achievable in whole cells. The high penetration of X-rays indicates the use of X-ray fluorescence tomography for structural visualization, and recent measurements have realised sub-500-nm tomography on a 10-μm cell. Limitations of present approaches impact the duration of an experiment and imaging fidelity. Developments in X-ray resolution, detector speed, cryogenic environments, and the incorporation of auxiliary signals are being pursued within the synchrotron community. Several complementary approaches to X-ray fluorescence tomography will be routinely available to the biologist in the near future. We discuss these approaches and review applications of biological relevance.
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Affiliation(s)
- Martin D de Jonge
- Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia.
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