Trace Elements in Human Health

Василев

J. Food Process. Preserv.

et al. 2021

In armies worldwide, canned meat is one of the strategic foods thanks to its long-term sustainability and high nutritional value (Barrett & Cardello, 2012; Pograjc et al., 2010). The production of canned food for the Serbian Armed Forces is carried out according to military standards and technical specifications, which define not only the quality of cans, but also the method of labeling, the type and ratio of ingredients, the technological process of the production, and the quality of the final product, such as sensory characteristics and chemical and microbiological parameters. All these parameters keep pace with international food safety standards. The safety of canned meat depends on the heat treatment process, which must destroy the spores of the mesophilic species Clostridium botulinum and the cans' good hermeticity (Nitsch & Vuković, 2006). In addition, the quality of canned meat primarily depends on the quality of raw material (Florowski et al., 2017), but also on conditions and the length of storage (Buculei et al., 2014; Vafaei et al., 2018). Properly performed sterilization and good hermeticity guarantee good sustainability at room temperature over several years. Also, appropriate packaging prevents subsequent contamination of food with microorganisms, as well as other contaminants. In addition to good hermeticity, it is also necessary to prevent metal/ food contacts inside the can and metal/air outside, which is achieved

Section: Practical Applicationsmentioning

confidence: 99%

Determination of sensory properties and levels of trace elements during storage of canned meat products

Василев

J. Food Process. Preserv.

et al. 2021

“…As nutrients, they are obtained from food, water, and the environment [ 7 ] and are usually needed in tiny quantities (traces) in the body [ 8 , 9 ]. Their toxicities are rare at the dietary intake level, as they are highly regulated by homeostatic mechanisms to avoid excessive levels and cannot be stored in the body [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Distribution and Determinants of Serum Zinc, Copper, and Selenium Levels among Children under Five Years from Popokabaka, Democratic Republic of Congo: A Cross-Sectional Study

et al. 2022

Information about essential trace elements among children in many African countries, including the Democratic Republic of Congo (DRC), is limited. We aimed to measure the distribution and determinants of serum zinc (Zn), copper (Cu), and selenium (Se) concentrations in a representative sample of children under five years old. We conducted a community-based cross-sectional study in Popokabaka, DRC. Blood samples were drawn from 412 children. The serum concentrations of minerals were measured using inductively coupled plasma–mass spectrometry. The median concentrations (P25–P75) of Zn, Cu, and Se were 61.9 µg/dL (52.8–70.2), 145.5 (120.0–167.0) µg/dL and 5.3 (4.3–6.3) µg/L. The CRP-adjusted prevalence of serum Se deficiency was 84.1% (95% confidence interval [CI] 81.4–87.0) and of Zn deficiency was 64.6% (95% CI 59.8–69.1%). Only a few children were Cu deficient [1.5% (0.6–3.2)]. Evidence of inflammation (C-reactive protein, >5 mg/L) was associated with a lower Se concentration and higher Cu concentration. Furthermore, serum Se concentration was positively associated with linear growth. The average Cu/Zn molar ratio (2:1) was twice that recommended. Children in western Popokabaka had higher Zn and Se levels than their eastern neighbors. Zinc and selenium deficiencies are common among children in Popokabaka and require attention and prioritization.

Advances in Materials Science and Engineering

“…Cobalt (II) contamination of wastewater is a serious issue due to its toxicity at higher levels [12]. Cobalt has many adverse health consequences, including cardiovascular disease, asthma, heart failure, goiter, and liver disorders [13].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis Ca-MgO Nanosorbent for the Uptake of Cobalt Ions from Aqueous Media

Al-Awaji

Boukriba

Idriss

et al. 2022

Ca-doped magnesium oxide nanosorbent has been prepared by sol-gel in the presence of gum arabic extract and assessed for the removal of cobalt ions (Co (II)) from aqueous media. X-ray diffraction analysis indicates the formation of MgO and CaO composites with a mean crystallite size of 6 nm having a large surface area of 50 m2/g. Scanning and transmission electron microscopy observations reveal spherical-shaped particles at the nanoscale around 20 nm. Besides, X-ray photoelectron spectroscopy and Fourier transform infrared analyses manifest the existence of functional groups, which will facilitate the adsorption of metal ions. The adsorption capability of the CaO-MgO nanosorbent achieved 469.5 mg/g for Co (II) ions under optimum operating conditions. Furthermore, the experimental data elucidate that the adsorption process is primarily diffusion-based and that both intraparticle and boundary layer diffusion appear to play a key role in the rate-controlling step. The findings of this study highlight the remediation of contaminated water by cobalt ions by CaO-MgO nanostructure and can be extended to other metal ions and organic pollutants.