TY - JOUR
T1 - Lead, cadmium and cobalt (Pb, Cd, and Co) leaching of glass-clay containers by pH effect of food
AU - Valadez-Vega, Carmen
AU - Zúñiga-Pérez, Clara
AU - Quintanar-Gómez, Samuel
AU - Morales-González, José A.
AU - Madrigal-Santillán, Eduardo
AU - Villagómez-Ibarra, José Roberto
AU - Sumaya-Martínez, María Teresa
AU - García-Paredes, Juan Diego
PY - 2011/4
Y1 - 2011/4
N2 - Recent studies have shown that handcrafted glass-clay containers are a health risk because they can be contaminated by heavy metals, which can be transferred to food, thus reaching the human body to potentially cause illness. Therefore, in the present work, we evaluate the leaching of lead, cadmium, and cobalt from glass-clay containers into two types of food: tomato sauce (salsa), and chickpea puree. The containers were obtained from four regions in the Mexican state of Hidalgo. Repetitive extractions from the containers were carried out to quantify the leaching of the heavy metals into the salsa, the chickpea puree, and acetic acid using the technique proposed by the USFDA. The results show that greater use of the containers leads to more leaching of heavy metals into both types of food and into the acetic acid, with the greatest metal extraction recorded for the Ixmiquilpan vessels. These results indicate that the metals present in the glass-clay containers leach into the food and that increased reuse increases the risk to the people who use them in food preparation.
AB - Recent studies have shown that handcrafted glass-clay containers are a health risk because they can be contaminated by heavy metals, which can be transferred to food, thus reaching the human body to potentially cause illness. Therefore, in the present work, we evaluate the leaching of lead, cadmium, and cobalt from glass-clay containers into two types of food: tomato sauce (salsa), and chickpea puree. The containers were obtained from four regions in the Mexican state of Hidalgo. Repetitive extractions from the containers were carried out to quantify the leaching of the heavy metals into the salsa, the chickpea puree, and acetic acid using the technique proposed by the USFDA. The results show that greater use of the containers leads to more leaching of heavy metals into both types of food and into the acetic acid, with the greatest metal extraction recorded for the Ixmiquilpan vessels. These results indicate that the metals present in the glass-clay containers leach into the food and that increased reuse increases the risk to the people who use them in food preparation.
KW - Glass clay
KW - Heavy metals
KW - Leaching
UR - http://www.scopus.com/inward/record.url?scp=79953872713&partnerID=8YFLogxK
U2 - 10.3390/ijms12042336
DO - 10.3390/ijms12042336
M3 - Artículo
C2 - 21731445
AN - SCOPUS:79953872713
SN - 1661-6596
VL - 12
SP - 2336
EP - 2350
JO - International Journal of Molecular Sciences
JF - International Journal of Molecular Sciences
IS - 4
ER -