Malondialdehyde and antioxidant content of pasteurized, semi-skimmed uht and uht milks
<b>Aim:</b> In this study, to evaluate oxidant and antioxidant parameters of pasteurized, semi-skimmed UHT and UHT milks, the malondialdehyde (MDA), vitamin (Vit) C, total protein (TP), reduced glutathione (rGSH) levels and catalase (CAT) activity of them were determined and correlations...
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| Format: | Article |
| Language: | English |
| Published: |
Selcuk University Press
2023-03-01
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| Series: | Eurasian Journal of Veterinary Sciences |
| Subjects: | |
| Online Access: | http://eurasianjvetsci.org/pdf.php3?id=1413 |
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| Summary: | <b>Aim:</b> In this study, to evaluate oxidant and antioxidant parameters of
pasteurized, semi-skimmed UHT and UHT milks, the malondialdehyde (MDA),
vitamin (Vit) C, total protein (TP), reduced glutathione (rGSH) levels and
catalase (CAT) activity of them were determined and correlations between
these parameters were revealed.<p>
<b>Materials and Methods:</b> Thirty milk samples from different trademarks were
collected from different markets in Hatay. Milk MDA, Vit C, TP, rGSH levels and
CAT activity were determined by spectrophotometric methods.<p>
<b>Results:</b> The lowest MDA level was determined in semi-skimmed UHT milk (p
< 0.05). Pasteurized milk MDA level was higher than semi-skimmed UHT milk
(p < 0.05). The levels of Vit C (p < 0.001) and TP (p < 0.01) in pasteurized milk
were found to be higher than in the others. The rGSH levels of pasteurized and
UHT milks were higher than semi-skimmed UHT milk (p < 0.05). UHT semiskimmed
milk CAT activity (p < 0.05) was found to be quite high compared
to other milks. As regards correlations; pasteurized milk MDA level was
positively correlated with Vit C level (r = 0.743, p < 0.01). Semi-skimmed UHT
milk TP level was positively correlated with CAT activity (r = 0.673, p < 0.05).<p>
<b>Conclusion:</b> As a result, the levels of oxidant (MDA), antioxidant parameters
(Vit C, rGSH, and CAT), and TP in pasteurized, semi-skimmed UHT and UHT
milk were evaluated and discussed in the present study. With this study, it is
suggested that consumption of pasteurized milk may be healthier than semiskimmed
UHT and UHT milks. |
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| ISSN: | 1309-6958 2146-1953 |