| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 |
 776 11 |
| Ultima descărcare din IBN: 2024-03-24 18:36 |
 SM ISO690:2012GONŢA, Maria. Influenţa inhibitorilor în formarea n-nitrozaminelor în sistemele sucului gastric
. In: Studia Universitatis Moldaviae (Seria Ştiinţe Reale şi ale Naturii), 2009, nr. 1(21), pp. 111-123. ISSN 1814-3237. |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
| Studia Universitatis Moldaviae (Seria Ştiinţe Reale şi ale Naturii) | ||||||
| Numărul 1(21) / 2009 / ISSN 1814-3237 /ISSNe 1857-498X | ||||||
|
||||||
| Pag. 111-123 | ||||||
|
||||||
 Descarcă PDF |
||||||
| Rezumat | ||||||
The formation of N-trosamines in gastric juice during the nitrosation of secondary amines by nitrite ions has been investigated.
It has been established, that the ratio of nitrosation of amines in gastric juice is higher than in model systems, due to
the presence of catalysts. On the nitrosation of the formed metabolites generated during the proteolysis of casein and albumin
in gastric juice, the rate of this process is pH and enzyme activity dependent. The dihydroxyfumaric acid and sodium dihydroxyfumarate
demonstrate inhibition properties during the formation of N-nitrzoamines in gastric juice at the proteolysis of
proteins in the presence of different proteolysis enzymes. The result of the comparative study of the degree of diminishing of
the concentration of nitrite ions at the proteolysis of proteins in the presence of DFH4, AAs and ( )-Ct demonstrate that the
rate of NO2
- consumption in the presence of DFH4 is the highest, while the constants of the reaction speed vary as follows
kDFH4 > kAAs > k( )Ct
0,94·102M-1s-1 0,6·102M-1s-1 0,4·102M-1s-1 |
||||||
|
|
|
|
