Assessment of the microbiological quality and heavy metal risk in vegetable species marketed in outdoor fairs

Bionatura Pub Date : 2023-12-15 DOI:10.21931/rb/2023.08.04.18

Elena Coyago-Cruz, Gabriela Méndez, Daniel Acurio

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Abstract

The objective of this study was to evaluate the possible health risks associated with the content of heavy metals and microorganisms in the consumption of watercress, lettuce, lemon balm and taraxaco. The products were purchased in several markets in the city of Quito. In this study, the products marketed in the north and center of the town showed better size characteristics, while the soluble solids, pH and ash showed no definite behavior. In addition, due to the volcanic origin of the Ecuadorian soils in which the samples under study were grown, it could influence the lead content that varied between 0.02 ppm (taraxacum, lemon balm and lettuce) up to 2.60 ppm (watercress). This value exceeded the maximum limit allowed by the CODEX, becoming a health risk. In addition, the microbial quality of the different species under study showed high contamination with mesophilic aerobic microorganisms and parasites. These results provide valuable information that could finance food safety decisions by the government to protect health and improve the quality of life of the people of Quito. Keywords: food safety, mesophilic aerobic, parasites, lead, Cadmium

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户外集市销售的蔬菜品种的微生物质量和重金属风险评估

本研究的目的是评估食用水芹、莴苣、柠檬香膏和芋头中的重金属和微生物含量可能对健康造成的风险。这些产品是在基多市的几个市场上购买的。在这项研究中，北部和中部市场的产品显示出较好的尺寸特征，而可溶性固形物、pH 值和灰分则没有明确的表现。此外，由于研究样本生长的厄瓜多尔土壤为火山岩土壤，其铅含量从 0.02 ppm（蒲公英、柠檬香膏和莴苣）到 2.60 ppm（水芹）不等。这一数值超过了 CODEX 规定的最高限值，对健康构成了威胁。此外，所研究的不同物种的微生物质量显示，中嗜氧性微生物和寄生虫污染严重。这些结果提供了宝贵的信息，有助于政府做出食品安全决策，保护基多人民的健康，提高他们的生活质量。关键词：食品安全、嗜中性需氧菌、寄生虫、铅、镉

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