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Table 3 Stability tests for fermencin SA715 (heat, enzyme and pH)

From: Characterization, yield optimization, scale up and biopreservative potential of fermencin SA715, a novel bacteriocin from Lactobacillus fermentum GA715 of goat milk origin

Test

Zone of inhibition (mm)

Control

++++

Heat

 40

++++

 50

++++

 60

++++

 70

++++

 80

++++

 90

++++

 100

+++

Enzyme

 Proteinase K

++

 Lysozyme

++++

 Peptidase

++

 Lyticase

++++

 Catalase

++++

 Trypsin

+++

 α-Chymotrypsin

+++

 Protease

+++

pH

 2–7

+++

 8

++

 9 and 10

+

  1. ++++, inhibition zone > 20 mm; +++, inhibition zone 16–20 mm; ++, inhibition zone = 15 mm; +, inhibition zone < 15 mm