تفاعل #498288
ord-15f32c2071fe4df7bfa2b8a7cea54026
معادلة التفاعل
glycine
p-nitrophenyl-β-D-cellobioside
gluconolactone
sodium acetic acid
→
p-nitrophenol
الكواشف
لا شيء
ظروف التفاعل
الظروف التفصيلية
See reaction.notes.procedure_details.
المعالجة
- 1أخرىan incubation of 15 minutes
- 2أخرىat 30, 40, 50, 60 or 70° C.
الإجراء التجريبي
To determine the influence of the temperature on the enzyme activity 25 μl enzyme solution was added to 225 μl of a solution containing 0.1% p-nitrophenyl-β-D-cellobioside and 25 mM gluconolactone in a 50 mM sodium acetic acid buffer at pH 5.0. Following an incubation of 15 minutes at 30, 40, 50, 60 or 70° C. the enzyme activity was stopped by adding 750 μl of a 0.5 M glycine buffer pH 9.0. The concentration of p-nitrophenol formed was determined spectrophotometrically at 400 nm.