Abstract
Tyrosinase and malic dehydrogenase were treated with argon and nitrogen. Their activities were measured with time. The activities of tyrosinase and malic dehydrogenase when treated directly with argon, and when treated as a mixture of the enzymes and their substrates, were lower than with nitrogen treatments. The results suggest that argon reduces the activities of tyrosinase and malic dehydrogenase more than nitrogen. Tyrosinase activity with argon treatment was reduced by up to 14.2% more than nitrogen treatment when treated directly, and by up to 22.6% in the mixture of the enzyme and substrate. Malic dehydrogenase activity with argon treatment was reduced by up to 9.5% more than nitrogen treatment when treating the enzyme directly, and by up to 13.9% in the mixture of the enzyme and substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 45-49 |
| Number of pages | 5 |
| Journal | Food Chemistry |
| Volume | 72 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2001 |
| Externally published | Yes |
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A comparative study of effects of nitrogen and argon on tyrosinase and malic dehydrogenase activities. / Zhang, Donglin; Quantick, Peter C.; Grigor, John M.; Wiktorowicz, Richard; Irven, John.
In: Food Chemistry, Vol. 72, No. 1, 01.01.2001, p. 45-49.Research output: Contribution to journal › Article
TY - JOUR
T1 - A comparative study of effects of nitrogen and argon on tyrosinase and malic dehydrogenase activities
AU - Zhang, Donglin
AU - Quantick, Peter C.
AU - Grigor, John M.
AU - Wiktorowicz, Richard
AU - Irven, John
PY - 2001/1/1
Y1 - 2001/1/1
N2 - Tyrosinase and malic dehydrogenase were treated with argon and nitrogen. Their activities were measured with time. The activities of tyrosinase and malic dehydrogenase when treated directly with argon, and when treated as a mixture of the enzymes and their substrates, were lower than with nitrogen treatments. The results suggest that argon reduces the activities of tyrosinase and malic dehydrogenase more than nitrogen. Tyrosinase activity with argon treatment was reduced by up to 14.2% more than nitrogen treatment when treated directly, and by up to 22.6% in the mixture of the enzyme and substrate. Malic dehydrogenase activity with argon treatment was reduced by up to 9.5% more than nitrogen treatment when treating the enzyme directly, and by up to 13.9% in the mixture of the enzyme and substrate.
AB - Tyrosinase and malic dehydrogenase were treated with argon and nitrogen. Their activities were measured with time. The activities of tyrosinase and malic dehydrogenase when treated directly with argon, and when treated as a mixture of the enzymes and their substrates, were lower than with nitrogen treatments. The results suggest that argon reduces the activities of tyrosinase and malic dehydrogenase more than nitrogen. Tyrosinase activity with argon treatment was reduced by up to 14.2% more than nitrogen treatment when treated directly, and by up to 22.6% in the mixture of the enzyme and substrate. Malic dehydrogenase activity with argon treatment was reduced by up to 9.5% more than nitrogen treatment when treating the enzyme directly, and by up to 13.9% in the mixture of the enzyme and substrate.
U2 - 10.1016/S0308-8146(00)00201-6
DO - 10.1016/S0308-8146(00)00201-6
M3 - Article
VL - 72
SP - 45
EP - 49
JO - Food Chemistry
JF - Food Chemistry
SN - 0308-8146
IS - 1
ER -