Determination of Nitrate, Nitrite, Nitrosamine, pH and Malondialdehyde (MDA) of fruit drinks exposed to sunlight:- Nnochiri Wisdom O
ABSTRACT
This
study aimed at determining some physicochemical properties of some fruit juice
sold in Umuahia metropolis, Abia State. The nitrite, nitrate, n-nitrosamine, as
well as their by-product of metabolism, malondialdehyde (a deleterious
by-product of lipid peroxidation) and the pH content of seven (7) branded fruit
juice samples were determined using chemicalmethods. Malondialdehyde and
nitrite were estimated spectrophotometrically, nitrate after reduction to
nitrite with cadmium column and N-nitrosamines after decomposition to nitrite
using U.V irradiation, while pH was determined using pH-meter. The results show
that nitrite ranged from 0.13 - 1.10 pg/ml, nitrate was -0.28 - 1.10 pg/ml
while n-nitrosamine was - 0.08 --0.39 pg/ml. Also, MDA value has range of 0.82
- 3.74 pg/ml while the pH range was 2.80 - 3.30. From these results, it can be
safe to say that the fruit juice arc relatively safe even though chronic
consumption should be discourage.
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NNOCHIRI, W (2024). Determination of Nitrate, Nitrite, Nitrosamine, pH and Malondialdehyde (MDA) of fruit drinks exposed to sunlight:- Nnochiri Wisdom O. Repository.mouau.edu.ng: Retrieved Sep 16, 2024, from https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-nitrosamine-ph-and-malondialdehyde-mda-of-fruit-drinks-exposed-to-sunlight-nnochiri-wisdom-o-7-2
WISDOM, NNOCHIRI. "Determination of Nitrate, Nitrite, Nitrosamine, pH and Malondialdehyde (MDA) of fruit drinks exposed to sunlight:- Nnochiri Wisdom O" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 14 Aug. 2024, https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-nitrosamine-ph-and-malondialdehyde-mda-of-fruit-drinks-exposed-to-sunlight-nnochiri-wisdom-o-7-2. Accessed 16 Sep. 2024.
WISDOM, NNOCHIRI. "Determination of Nitrate, Nitrite, Nitrosamine, pH and Malondialdehyde (MDA) of fruit drinks exposed to sunlight:- Nnochiri Wisdom O". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 14 Aug. 2024. Web. 16 Sep. 2024. < https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-nitrosamine-ph-and-malondialdehyde-mda-of-fruit-drinks-exposed-to-sunlight-nnochiri-wisdom-o-7-2 >.
WISDOM, NNOCHIRI. "Determination of Nitrate, Nitrite, Nitrosamine, pH and Malondialdehyde (MDA) of fruit drinks exposed to sunlight:- Nnochiri Wisdom O" Repository.mouau.edu.ng (2024). Accessed 16 Sep. 2024. https://repository.mouau.edu.ng/work/view/determination-of-nitrate-nitrite-nitrosamine-ph-and-malondialdehyde-mda-of-fruit-drinks-exposed-to-sunlight-nnochiri-wisdom-o-7-2