Simple and fast ultrasound-assisted method for mineral content and bioaccessibility study in infant formula by ICP OES

Abstract

<p>Infant formula (IF) constitutes the sole source of mineral intake for infants who are only fed IF.</p>

Inorganic Contaminants in Plant-Based Yogurts Commercialized in Brazil

“…The samples were subjected to ultrasound-assisted acid digestion, as described by Fioravanti et al (2020) [ 30 ], with modifications. Approximately 0.5 g of sample was weighed into a graduated tube (50 mL), 4 mL of HNO 3 and 2 mL of H 2 O 2 were added, and the closed tube was kept overnight for approximately 17 h. Then, the tubes were heated in an ultrasonic bath at 80 °C for 35 min.…”

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…Several research groups have reported on a comparison of sample preparation procedures. For the determination of the mineral content of infant formula by ICP-OES, 45 ultrasoundassisted extraction was selected as the most suitable, as it was simple, fast and low-cost in comparison with the other procedures (microwave-assisted digestion and dry ashing). Sample (2 g) was extracted with 2 mL HNO 3 and 1 mL H 2 O 2 in a capped 50 mL tube in an ultrasonic bath for 30 min at 60 C. Following cooling, the solution was made up to 25 mL with H 2 O and ltered (0.45 mm).…”

“…The concentrations found in the Mexican wines were reported according to their winery regions and compared to maximum allowable levels in various states and other countries. The mineral content of infant formula was the focus of a study by Fioravanti et al 45 The work involved both method development and validation, using ICP-AES and an in vitro study of the ‘dialysability’ of elements from the formula. Similar results were obtained from ultrasound assisted extraction and microwave digestion when an infant food CRM was analysed.…”

Uma abordagem dos ensaios in vitro para estimar a absorção dos minerais em fórmulas infantis

“…Atualmente, a segurança da FI é garantida por rigorosas legislações, por um controle de qualidade que emprega métodos analíticos bem estabelecidos e por novos estudos que trazem soluções práticas para minimizar possíveis incidentes, principalmente os microbiológicos. Estes incidentes podem afetar as características organolépticas, influenciando o consumidor e diminuindo a credibilidade em relação à qualidade do produto (Fei et al, 2020;Fioravanti et al, 2020a;Fu et al, 2020;Pires et al, 2020;Li et al, 2019). Para prevenir cada vez mais estes incidentes, os regulamentos técnicos de FI para lactentes e produtos lácteos são delineados por padrões internacionais elaborados pela Comissão do Codex Alimentarius ou por padrões específicos elaborados principalmente pela União Europeia e pelos seguintes países: Estados Unidos, China, Austrália e Nova Zelândia (Poitevin, 2016).…”