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Assessment of horticultural products whose crops allow the use of copper-based pesticides by inductively coupled plasma optical emission spectrometry. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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2
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Wu M, Zhi M, Liu Y, Han J, Qin Y. In situ analysis of copper speciation during in vitro digestion: Differences between copper in drinking water and food. Food Chem 2022; 371:131388. [PMID: 34808779 DOI: 10.1016/j.foodchem.2021.131388] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 11/28/2022]
Abstract
In recent years, the safety of copper in drinking water has increasingly been questioned. Copper speciation is an important factor that affects its bioavailability and toxicity; thus, it is critical to investigate the speciation of copper that is ingested from food and drinking water during in vitro digestion. After digestion, water- and food-derived copper formed 60 ± 4% 0.1-1 kDa and 49 ± 6% 10-1,000 kDa copper complexes, respectively. Under simulated fasting drinking water conditions, up to 90 ± 2% 0.1-1 kDa copper complexes formed. In addition, using ion selective electrode analysis, water-derived copper was detected that contained higher Cu2+ concentrations after digestion than those of food-derived copper. These results indicate that water-derived copper forms smaller-sized species and exhibits higher Cu2+ concentrations during digestion than those of food-derived copper, thereby highlighting the importance of reassessing the safety limit for copper in drinking water.
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Affiliation(s)
- Min Wu
- Hangzhou Vocational & Technical College, Ecology and Health Institute. Hangzhou 310018, PR China; Food Nutrition Science Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, PR China
| | - Mingyu Zhi
- Hangzhou Vocational & Technical College, Ecology and Health Institute. Hangzhou 310018, PR China
| | - Ying Liu
- Hangzhou Vocational & Technical College, Ecology and Health Institute. Hangzhou 310018, PR China
| | - Jianzhong Han
- Food Nutrition Science Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, PR China
| | - Yumei Qin
- Food Nutrition Science Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, PR China.
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3
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Wu M, Ke L, Zhi M, Qin Y, Han J. The influence of gastrointestinal pH on speciation of copper in simulated digestive juice. Food Sci Nutr 2021; 9:5174-5182. [PMID: 34532026 PMCID: PMC8441336 DOI: 10.1002/fsn3.2490] [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: 03/24/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 11/29/2022] Open
Abstract
Speciation can provide knowledge about absorption, reactivity to binding sites, bioavailability, toxicity, and excretion of elements. In this study, the speciation of copper in different model solutions under the influence of gastrointestinal (GI) pH was studied by ion selective electrode (ISE) and inductively coupled plasma optical emission spectrometry (ICP OES). It was found that the electrode response (mV) against Cu2+ decreased with the increase in pH and dropped to the lowest point at pH 7.5 in all model solutions. When amino acids and organic acids were present, the ratio of filtered copper (0.45 μm, pH 7.5) was more than 90%. When casein was present, whey protein, pancreatin, and starch were added, and the ratio of filtered copper was 85.6 ± 0.3, 56.7 ± 8.8, 38.5 ± 5.1, and 1.0 ± 0.3%, respectively. When there is not enough organic ligand, excessive copper will form copper hydroxide precipitation with the increase in pH, but it got the highest electrode response (mV) against Cu2+. From this study, it can be concluded that the speciation of copper in GI tract is strongly influenced by the pH and the composition of food. When there are few ligands coexisting in the GI tract, the concentration of copper ion may be relatively high.
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Affiliation(s)
- Min Wu
- Hangzhou Vocational & Technical CollegeEcology and Health InstituteHangzhouChina
- Food Safety Key Laboratory of Zhejiang ProvinceSchool of Food Science and BiotechnologyZhejiang Gongshang UniversityHangzhouChina
| | - Leqin Ke
- Hangzhou Vocational & Technical CollegeEcology and Health InstituteHangzhouChina
| | - Mingyu Zhi
- Hangzhou Vocational & Technical CollegeEcology and Health InstituteHangzhouChina
| | - Yumei Qin
- Food Safety Key Laboratory of Zhejiang ProvinceSchool of Food Science and BiotechnologyZhejiang Gongshang UniversityHangzhouChina
| | - Jianzhong Han
- Food Safety Key Laboratory of Zhejiang ProvinceSchool of Food Science and BiotechnologyZhejiang Gongshang UniversityHangzhouChina
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4
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Iturbide-Casas M, Molina-Recio G, Cámara-Martos F. Macronutrients and trace elements in enteral nutrition formulas: Compliance with label, bioaccessibility and contribution to reference intakes through a probabilistic assessment. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.103250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Ortiz ML, Cámara-Martos F. Bioaccessibility and total content of iron, zinc, copper, and manganese in rice varieties (Oryza sativa
L.): A probabilistic assessment to evaluate their contribution to dietary reference intake. Cereal Chem 2018. [DOI: 10.1002/cche.10094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- María Laura Ortiz
- Departamento de Ciencias Básicas; Facultad de Ciencias Veterinarias; Universidad Nacional del Nordeste; Corrientes Argentina
| | - Fernando Cámara-Martos
- Departamento de Bromatología y Tecnología de los Alimentos; Universidad de Córdoba; Córdoba España
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Ramírez-Ojeda AM, Moreno-Rojas R, Sevillano-Morales J, Cámara-Martos F. Influence of dietary components on minerals and trace elements bioaccessible fraction in organic weaning food: a probabilistic assessment. Eur Food Res Technol 2016. [DOI: 10.1007/s00217-016-2777-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Mir-Marqués A, Cervera ML, de la Guardia M. Mineral analysis of human diets by spectrometry methods. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.07.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Quintana AV, Olalla-Herrera M, Ruiz-López MD, Moreno-Montoro M, Navarro-Alarcón M. Study of the effect of different fermenting microorganisms on the Se, Cu, Cr, and Mn contents in fermented goat and cow milks. Food Chem 2015; 188:234-9. [DOI: 10.1016/j.foodchem.2015.05.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/27/2015] [Accepted: 05/01/2015] [Indexed: 10/23/2022]
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9
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Saha B, Saikia J, Das G. Correlating enzyme density, conformation and activity on nanoparticle surfaces in highly functional bio-nanocomposites. Analyst 2015; 140:532-42. [PMID: 25407103 DOI: 10.1039/c4an01639d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The biological activity of the immobilized enzyme is crucial for the performance of different nanoparticle mediated enzymatic assays, where enzymatic conversion can be used for label-free analyte detection. In this article we have addressed two significant aspects of enzyme-nanoparticle interactions. First, we have developed copper sulfide (CuS) nanoparticles with an average diameter of 25 nm as a potential enzyme-interface using trypsin protease as a model enzyme. CuS nanoparticles showed high trypsin immobilization capacity of about 14.0 mg m(-2) with the significant retention of native enzymatic activity (75-98%) at room temperature, even beyond the calculated tightly packed monolayer coverage (which is around 4.1 mg m(-2)). Second, we report a quantitative correlation between the structure-functional relationship and the density of immobilized trypsin on a nanoparticle surface. The in situ conformation of immobilized trypsin could be efficiently analyzed by fluorescence, circular dichroism and FT-IR spectroscopic measurements because of the small size of the nanoparticles. Trypsin molecules appear to retain their close-native tertiary and secondary structural features (with a small loss of 1-2% of helical content) in the entire surface density range (2.0-14.0 mg m(-2)) on the CuS nanoparticles. However, interestingly, at a low surface coverage (2.0 mg m(-2)), immobilized trypsin retains almost 98% of its native enzymatic activity, leading to a highly functional bio-nanocomposite. However, at higher surface coverages, the enzyme activity decreases to 77%, indicating the influence of steric crowding. Furthermore, the high functionality of the immobilized trypsin at low surface density on CuS nanoparticle was also confirmed by determining the kinetic parameters of enzymatic activity.
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Affiliation(s)
- Bedabrata Saha
- Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India.
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10
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Rahmdel S, Abdollahzadeh SM, Mazloomi SM, Babajafari S. Daily dietary intakes of zinc, copper, lead, and cadmium as determined by duplicate portion sampling combined with either instrumental analysis or the use of food composition tables, Shiraz, Iran. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:349. [PMID: 25968406 DOI: 10.1007/s10661-015-4515-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 04/09/2015] [Indexed: 06/04/2023]
Abstract
Estimation of essential and toxic element intakes is crucial to evaluate the risks of deficiency or toxicity. The purpose of this study was to investigate and also to compare the dietary intakes of zinc (Zn) and copper (Cu) by adults living in Shiraz, Iran, determined by two procedures: duplicate portion sampling of 21 hospital meals combined with either instrumental analysis (voltammetric measurement) or the use of food composition tables (FCTs). The level of exposure to lead (Pb) and cadmium (Cd) was evaluated as well. The daily Zn intakes of both methods were not significantly different and were higher than the RDA values except the value measured by the instrumental analysis which was lower than the RDA established for a male adult. Daily intake of Cu determined by instrumental analysis was significantly lower and closer to RDA for adults compared with the value estimated by FCTs. The dietary intakes of Pb and Cd were 313 and 61% of the respective provisional tolerable weekly intakes (PTWIs), respectively. The accuracy of two methods used for estimation of Zn intake was similar. In the case of Cu, the use of FCTs, in which the influence of environmental conditions and dietary habits of meal preparation is not taken into account, overestimated dietary intake. The risk of zinc deficiency was found in adult males. Moreover, the estimated intake of Pb, but not Cd, could be a cause of concern for Shiraz population. Thus, conducting regular periodic studies to assess the dietary intake of mentioned elements are recommended.
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Affiliation(s)
- Samane Rahmdel
- Department of Food Hygiene and Public Health, School of Veterinary Medicine, Shiraz University, Shiraz, Iran,
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Duplicate portion sampling combined with spectrophotometric analysis affords the most accurate results when assessing daily dietary phosphorus intake. Nutr Res 2012; 32:573-80. [DOI: 10.1016/j.nutres.2012.06.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 06/15/2012] [Accepted: 06/26/2012] [Indexed: 01/07/2023]
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12
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Velasco-Reynold C, Navarro-Alarcon M, Lopez-Ga de la Serrana H, Perez-Valero V, Agil A, Lopez-Martinez MC. Dialysability of magnesium and calcium from hospital duplicate meals: influence exerted by other elements. Biol Trace Elem Res 2010; 133:313-24. [PMID: 19582377 DOI: 10.1007/s12011-009-8444-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Accepted: 06/23/2009] [Indexed: 10/20/2022]
Abstract
Total and dialysable magnesium and calcium levels and corresponding dialysabilities were measured in duplicate meals (n = 108) during 36 consecutive days. The interaction exerted by other nutrients and energy on them was also performed. Total mean magnesium and calcium fractions of 113.9 +/- 98.3 and 337.2 +/- 278.9 mg/meal respectively, were found. The Mg and Ca levels supplied by meals are positively (p < 0.05) correlated with macronutrient contents (carbohydrates and proteins). The mean dialysable Mg and Ca fractions were 56.9 +/- 36.3 and 127.4 +/- 112.3 mg/meal (50.4 +/- 13.2 and 37.8 +/- 10.7% as dialysabilities, respectively). Total Mg and Ca levels are significantly correlated with corresponding element dialysabilities (p < 0.05). For both minerals, significant correlations between their total and dialysable fractions and between their dialysable level and dialysabilities were noted (p < 0.01). The mean Mg and Ca daily dietary intakes (DDI) were 341.7 +/- 68.0 and 1,011.6 +/- 424.4 mg/day, respectively. For Ca and Mg the existence of similarities in their behaviour in meals and absorptive processes has been found. Duplicate meals with raw vegetables are good sources of bioaccessible Mg. High Ca dialysability has been found in the analysed meals. The fish and products constitute a good source of bioaccessible Ca. Mg, Ca, zinc, and chromium levels enhanced significantly the Mg dialysability. The Ca dialysability rose significantly with dialysable Ca and chromium fractions (p < 0.05).
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da Silva MCS, Naozuka J, Oliveira PV, Vanetti MCD, Bazzolli DMS, Costa NMB, Kasuya MCM. In vivo bioavailability of selenium in enriched Pleurotus ostreatus mushrooms. Metallomics 2010; 2:162-6. [DOI: 10.1039/b915780h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Velasco-Reynold C, Navarro-Alarcon M, Lopez-Ga de la Serrana H, Perez-Valero V, Lopez-Martinez MC. Iron dialyzability from hospital duplicate meals: daily intake. Biol Trace Elem Res 2009; 130:241-8. [PMID: 19221696 DOI: 10.1007/s12011-009-8339-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Accepted: 02/03/2009] [Indexed: 10/21/2022]
Abstract
Both total and dialyzable iron levels and corresponding dialyzability were determined in 108 duplicate meals during 36 consecutive days. Total mean iron fraction of 5.90 +/- 4.97 mg was found in the meals. The iron supplied by the meals is directly and significantly (p < 0.05) correlated with macromicronutrient content (carbohydrates, fiber, and protein). The mean iron dialyzability (4.81 +/- 3.25%) was low and not significantly different among the three primary meals (breakfast, lunch, and dinner). Significant interactions of several minerals on iron levels were found (p < 0.05). Iron dialyzability was only statistically influenced by zinc dialyzability in meals (p < 0.05). The dialyzed iron fraction present in meals was significantly correlated with protein and ascorbic acid levels (p < 0.01). The mean iron daily dietary intake was 17.7 +/- 6.91 mg. The hospital meals provided enough iron. Foods of animal origin are primary sources of iron in diet.
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Velasco-Reynold C, Navarro-Alarcon M, López-GaDe La Serrana H, Lopez-Martinez M. Copper in foods, beverages and waters from South East Spain: influencing factors and daily dietary intake by the Andalusian population. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2008; 25:937-45. [DOI: 10.1080/02652030801984117] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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