Determination Of Nitrate, Nitrite, N-Nitrosamine And Malondialdehyde Contents In Ice-Creams And Yoghurts Marketed In Eastern Nigeria
ABSTRACT
The total nitrate, nitrite, n-nitrosamine and
malondialdehyde contents of ice creams and yoghurts marketed in eastern Nigeria
were evaluated by spectrophotometric methods. Nitrate was determined
spectrophotcmetrically and nitrate after reduction to nitrite with cadium.
N-nitrosamine was determined after decomposition to nitrite by ultra-violet
irradiation. Malondialdehyde was also determined spectrophotometrically.
Analysis of the samples indicated nitrate level ranging between 0.O4jiglmi and
4.906jiglmi. Nitrite levels obtained ranged between 0.070 jig/mi and 3.200
jig/mI. Nitrosamine levels ranged between 0.015jig/ml and 0.599 jig/mi.
Malondialdehyde levels ranged between 1.789 and 9.105. There were also
non-detectable amounts of nitrates, nitrites and Nnitrosamine in some of the
samples. Some of the values obtained are higher than the (ADI) allocated by the
FAO/WHO, which are 0-1 .6mg/kg/day for nitrate and 0-0.1mg/kg/day for nitrite
while some are below. Results obtained were discussed from nutritional and
toxicological points of view.
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NWOSU, O (2021). Determination Of Nitrate, Nitrite, N-Nitrosamine And Malondialdehyde Contents In Ice-Creams And Yoghurts Marketed In Eastern Nigeria. Repository.mouau.edu.ng: Retrieved Nov 24, 2024, from https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-n-nitrosamine-and-malondialdehyde-contents-in-ice-creams-and-yoghurts-marketed-in-eastern-nigeria-7-2
OGECHI, NWOSU. "Determination Of Nitrate, Nitrite, N-Nitrosamine And Malondialdehyde Contents In Ice-Creams And Yoghurts Marketed In Eastern Nigeria" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 12 Oct. 2021, https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-n-nitrosamine-and-malondialdehyde-contents-in-ice-creams-and-yoghurts-marketed-in-eastern-nigeria-7-2. Accessed 24 Nov. 2024.
OGECHI, NWOSU. "Determination Of Nitrate, Nitrite, N-Nitrosamine And Malondialdehyde Contents In Ice-Creams And Yoghurts Marketed In Eastern Nigeria". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 12 Oct. 2021. Web. 24 Nov. 2024. < https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-n-nitrosamine-and-malondialdehyde-contents-in-ice-creams-and-yoghurts-marketed-in-eastern-nigeria-7-2 >.
OGECHI, NWOSU. "Determination Of Nitrate, Nitrite, N-Nitrosamine And Malondialdehyde Contents In Ice-Creams And Yoghurts Marketed In Eastern Nigeria" Repository.mouau.edu.ng (2021). Accessed 24 Nov. 2024. https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-n-nitrosamine-and-malondialdehyde-contents-in-ice-creams-and-yoghurts-marketed-in-eastern-nigeria-7-2