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from indigenous fermented foods and human gut ... - Thapar University

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MRS (De Man, Rogosa <strong>and</strong> Sharpe) broth<br />

Appendix 1<br />

Ingredients Quantity (g/L)<br />

Peptone <strong>from</strong> casein 10.0<br />

Meat extract 8.0<br />

Yeast extract 4.0<br />

D(+)-glucose 20.0<br />

Dipotassium hydrogen phosphate 2.0<br />

Tween 80 1.0<br />

Diammonium hydrogen citrate 2.0<br />

Sodium acetate 5.0<br />

Magnesium sulphate 0.2<br />

Manganese sulphate 0.04<br />

pH adjusted with 10N NaOH to pH 7.0 ±0.1 before autoclaving. Sterilized by autoclaving<br />

at 15 lbs pressure (121°C) for 15 min.<br />

MRS agar: MRS broth containing 15.0 g/l agar.<br />

MRS-Arginine broth<br />

Ingredients Quantity (g/L)<br />

Peptone <strong>from</strong> casein 10.0<br />

Yeast extract 5.0<br />

D(+)-glucose 0.5<br />

Dipotassium hydrogen phosphate 2.0<br />

Tween ® 80 1.0<br />

Diammonium hydrogen citrate 20.0<br />

Sodium acetate 5.0<br />

Magnesium sulphate 0.1<br />

Manganese sulphate 0.05<br />

Arginine 3.0<br />

pH adjusted with 10N NaOH to pH 7.0 ±0.1 before autoclaving. Sterilized by autoclaving<br />

at 15 lbs pressure (121°C) for 15 min.<br />

a

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