Larissa Santos

Ms. Larissa Santos


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
12 May 2024 in Foods
Verified
Journal Article
Open access
PDF file
LSLarissa Santos
Larissa Santos
FFFabiana Chagas Oliveira de França
Fabiana Chagas Oliveira de França
MMMartinho G. Dinis Martinho
Martinho G. Dinis Martinho
EGErival Gomes-Junior
Erival Gomes-Junior
MSMARIANGELA VIEIRA LOPES SILVA
MARIANGELA VIEIRA LOPES SILVA
José Antonio Menezes-FilhoJosé Antonio Menezes-Filho
José Antonio Menezes-Filho
Background: School meals represent a significant supply of nutrients for children in Brazil, especially those in conditions of social vulnerability. Objectives: This study aimed to assess the levels of arsenic (As), cadmium (Cd), and lead (Pb) in meals served in public elementary schools in four municipalities in the state of Bahia, Brazil, and assess the risk posed to children’s health. Methods: Ninety-six samples were collected from 16 schools, freeze-dried, and subjected to microwave-assisted digestion. The As, Cd, and Pb levels were determined by graphite furnace atomic absorption spectrometry. The risk assessment was based on calculating each element’s hazard quotient (HQ). Results: None of the samples reached or exceeded the tolerable levels for the elements analyzed. Pb was the metal that obtained the most significant result, reaching maximum levels of 39–157 µg·kg−1. Conclusions: No element exceeded the PTWI proposed by JECFA; thus, the toxic metal content in school meals poses a negligible risk to children’s health.

22 January 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
LSLarissa Santos
Larissa Santos
MMMartinho Gamas Diniz Martinho
Martinho Gamas Diniz Martinho
EGErival Gomes-Junior
Erival Gomes-Junior
FFFabiana Chagas Oliveira de França
Fabiana Chagas Oliveira de França
MSMARIANGELA VIEIRA LOPES SILVA
MARIANGELA VIEIRA LOPES SILVA
José Antonio Menezes-FilhoJosé Antonio Menezes-Filho
José Antonio Menezes-Filho
Background: School meals represent a significant supply of nutrients for children in Brazil, especially those in conditions of social vulnerability. Objectives: This study aimed to assess the levels of arsenic (As), cadmium (Cd), and lead (Pb) in meals served in public elementary schools in four municipalities in the state of Bahia, Brazil, and assess the risk posed to children's health. Methods: Ninety-six samples were collected from 16 schools, freeze-dried, and subjected to microwave-assisted digestion. The As, Cd, and Pb levels were determined by graphite furnace atomic absorption spectrometry. The risk assessment was based on calculating each element's hazard quotient (HQ). Results: None of the samples reached or exceeded the tolerable levels for the elements analyzed. Pb was the metal that obtained the most significant result, reaching maximum levels of 39-157 µg.kg-¹. Conclusions: No element exceeded the PTWI proposed by JECFA; thus, the toxic metal content in school meals poses a negligible risk to children´s health.