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Table of contents
- Enzymatic browning thesis in 2021
- How to prevent enzymatic browning
- Enzymatic browning of fruit
- How does heat treatment affect the rate of enzymatic browning
- Enzymatic browning define
- How does temperature affect enzymatic browning
- Enzymatic browning examples
- Preventing enzymatic browning
Enzymatic browning thesis in 2021
How to prevent enzymatic browning
Enzymatic browning of fruit
How does heat treatment affect the rate of enzymatic browning
This image representes How does heat treatment affect the rate of enzymatic browning.
Enzymatic browning define
How does temperature affect enzymatic browning
Enzymatic browning examples
Preventing enzymatic browning
How is the inhibition of enzymatic browning achieved?
Inhibition of enzymatic browning can also be obtained by removal of one of the two substrates (oxygen and phenolic compounds) from the reaction medium. Complete oxygen removal is the most satisfactory way to control the phenolic oxidation catalyzed by PPOs.
How is enzymatic browning related to polyphenol oxidation?
Several studies have shown that the enzymatic browning in apple pulp is associated with polyphenol content ( Murata et al., 1995a; Vamos-Vigyazo and Gajzago, 1976) and/or PPO activity ( Coseteng and Lee, 1987; Walker, 1962 ). The enzymatic browning is a consequence of the oxidation of polyphenols to their corresponding quinones by PPO.
Why does enzymatic browning occur in fruits and vegetables?
Enzymatic browning is one of the most important reactions that occur in fruits and vegetables, usually resulting in negative effects on color, taste, flavor, and nutritional value. The reaction is a consequence of phenolic compounds' oxidation by polyphenol oxidase (PPO), which triggers the generation of dark pigments.
What's the best way to get rid of enzymatic browning?
Peeling to remove the skin and cutting of flesh into several pieces must be done at 5 to 7 °C and the flesh must be dipped immediately under water or water plus vitamin C to minimize enzymatic browning. Fresh-cut slices should be stretch-wrapped in trays and stored at 7 to 8 °C and 90 to 95% RH.
Last Update: Oct 2021