| dc.description.abstract | Edamame (Glycine max) is easily damaged due to suspected enzyme content and
microbial activity, so the ingredients must be consumed directly after blanching process.
Selling value of rejected edamame is very low while the nutritional content is still quite good.
To increase the edamame selling value, an alternative processing is needed which could
maintain the edamame shelf life. The alternative way was creating edamame puree which had
a longer shelf life without damaging the characteristics of edamame puree. Preservation of
edamame puree was done by enzyme inactivation using Pulsed Electric Field (PEF) method.
The results showed that PEF treatment could inactivate protease enzyme up to 88,5%,
microbe 80-89%, antioxidant activity 44,5% and color 2,43%. The activity of edamame
protease enzymewas significantly decreased at 45 kV voltage treatment; 30 seconds (0.38
mMol/minutes). Total microbial in puree edamame significantly decreased at 40 kV voltage
treatment; 10 second (2,849 log Cfu / ml) and 40 kV voltage control; 20 second; 40 kV; 30
second; 45 kV; 10 second; 45 kV; 20 second; And 45 kV; 30 second (not growing).
Antioxidant activityof edamame puree after PEF treatment was significantly decreased at 45
kV; 30 seconds (5.43%). In addition, treatment of PEF also maintains the hue angle puree
edamame color remains in a yellowish greenish marked by a fixed value of susceptible 126 –
162. The value of hue angle edamame puree before and after PEF treatment ranged from
153.76 - 150.02. | en_US |
