Development of Growth Media for Bacillus amyloliquefaciens subsp. plantarum, a Poultry Probiotic Candidate

Year 2018, Volume: 12 Issue: 1, 46 - 50, 31.07.2018

Muhamad Alı İne Karnı Muhamad Amın Muhammad Ichsan

Abstract

Bacillus amiloliquefaciens subsp. plantarum is a poultry probiotic candidate due to its ability to produce three important

digestive enzymes; protease, amylase, and cellulase. In its application, the bacterial isolate needs to be cultivated in mass

scale, therefore requires a lot of growth medium. Thus, this study aimed at developing low-cost media to replace expensive

commercial growth media for culturing the probiont. Three media (two media developed by using two local sources) and one

commercial LB medium as the control were used to culture B. amiloliquefaciens subsp. plantarum. Growth was measured in

terms of Optical Density (OD), and total harvested bacterial biomass (mg). The results indicated that there was no significant

difference in OD of the probiont measured at the three media, which indicates that both local source-based media could support

the growth of the probiont at the same rate as the commercial medium. Furthermore, total biomass of the probiont harvested

from palm sugar medium was significantly higher (12.130 mg/mL), compared to either tofu wastewater (10.870 mg/mL),

or LB medium (7.800 mg/mL). This result suggests that palm sugar medium was the most suitable medium for culturing

B. amyloliquefaciens subsp. plantarum on a mass scale. However, the quantity and activity of enzyme synthesized by the

bacterium cultured in the local source medium should be further investigated.

Keywords

Bacillus amyloliquefaciens, LB media, palm sugar, tofu wastewater, growth

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