Effects of product recycle and temperature on autocatalytic reactions

A solution of crystalline trypsinogen in dilute buffer containing a trace of active trypsin when allowed to stand at pH 5.0–9.0 and 5°C. is gradually transformed partly into trypsin protein and partly into an inert protein which can no longer be changed into trypsin either by enterokinase or mold kinase. During the process of formation of trypsin and inert protein the ratio of the concentrations of the two products in any reaction mixture remains constant and is independent of the original concentration of trypsinogen protein. This ratio varies, however, with the pH of the solution, the proportion of trypsin formed being greater in the acid range of pH. The experimental curves for the rate of formation of trypsin, as well as for the rate of formation of inert protein are symmetrical S shaped curves closely resembling those of simple autocatalytic reactions. The kinetics of formation of trypsin and inert protein can be explained quantitatively on the theoretical assumptions that both reactions are of the simple unimolecular type, that in each case the reaction is catalyzed by trypsin, and that the rate of formation of each of the products is proportional to the concentration of trypsin as well as to the concentration of trypsinogen in solution.

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Concentration forcing of isothermal plug-flow reactors for autocatalytic reactions

Advances in Engineering Fluid Mechanics: Multiphase Reactor and Polymerization System Hydrodynamics ◽

10.1016/b978-088415497-6/50021-8 ◽

1996 ◽

pp. 525-538

Author(s):

M. Chidambaram

Keyword(s):

Plug Flow ◽

Flow Reactors ◽

Autocatalytic Reactions

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surface autocatalytic reactions

Catalysis from A to Z ◽

10.1002/9783527809080.cataz16040 ◽

2020 ◽

Author(s):

C. Sloby

Keyword(s):

Autocatalytic Reactions

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Spatio-temporal patterns with hyperchaotic dynamics in diffusively coupled biochemical oscillators

Discrete Dynamics in Nature and Society ◽

10.1155/s1026022697000162 ◽

1997 ◽

Vol 1 (2) ◽

pp. 161-167 ◽

Cited By ~ 3

Author(s):

Gerold Baier ◽

Sven Sahle

Keyword(s):

Dynamical Systems ◽

Finite Number ◽

Temporal Patterns ◽

Autocatalytic Reaction ◽

Living Systems ◽

First Order ◽

Autocatalytic Reactions ◽

Complex Patterns ◽

Spatio Temporal

We present three examples how complex spatio-temporal patterns can be linked to hyperchaotic attractors in dynamical systems consisting of nonlinear biochemical oscillators coupled linearly with diffusion terms. The systems involved are: (a) a two-variable oscillator with two consecutive autocatalytic reactions derived from the Lotka–Volterra scheme; (b) a minimal two-variable oscillator with one first-order autocatalytic reaction; (c) a three-variable oscillator with first-order feedback lacking autocatalysis. The dynamics of a finite number of coupled biochemical oscillators may account for complex patterns in compartmentalized living systems like cells or tissue, and may be tested experimentally in coupled microreactors.

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