Examinando por Autor "Navarro Agapito, Juan"

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    Determinación de nitritos y nitratos en hamburguesas de carne expendidas en el mercado Huamantanga – Puente Piedra, junio–diciembre 2019
    (Universidad Privada Norbert Wiener, 2021-01-30) Navarro Agapito, Juan; Jaramillo Briceño, Marilú Ricardina
    The objective of this research was to determine the content of nitrites and nitrates in the highest-demand meat hamburgers sold at the Huamantanga Market in Puente Piedra, between June and December 2019. The methodology was descriptive-comparative with a quantitative approach. 30 samples of the highest-demand meat hamburgers, acquired from stalls at the Huamantanga Market, were analyzed. The instrument used for the quantitative analysis was the UV spectrophotometer, at a wavelength of 538 nm, according to NTP-ISO 2918 ("Meat and meat products, Determination of nitrite content") and NTP-ISO 3091 ("Meat and meat products. Determination of nitrate content"). Results showed that the San Fernando brand hamburgers had an average content of 9.10 ppm for nitrites and 53.30 ppm for nitrates, while the El Gordito brand contained an average of 4.51 ppm for nitrites and 26.42 ppm for nitrates. It was concluded that the concentration of nitrites and nitrates in the highest-demand meat hamburgers sold did not exceed the values set by the Codex Alimentarius (125 ppm for nitrites and 500 ppm for nitrates), with both brands presenting values below the maximum permissible limit.