Preparation of inocula
For bacteria and yeasts, a suspension of each microbial
strain (2 mL of 48h old cultures) was used to inoculate
aliquots of 50 mL of liquid medium composed of (%, w/v)
glucose, 1; peptone, 0.5; yeast extract, 0.3; malt extract,
0.3; agar, 2; pH 6.5 (Volesky & Philips 1995) dispensed in
250 mL Erlenmeyer flasks. The flasks were agitated on a
reciprocal shaker at 200 rpm at 30°C ± 2 for 24 h. For
fungi, aliquots of 50 mL of liquid growth medium III were
dispensed in 250 mL Erlenmeyer flasks and sterilized.
The sterilized medium was inoculated with 2 mL of spore
suspension prepared by adding 5 mL sterile distilled water
into 6 days old slant culture. The flasks were agitated on a
rotary shaker (200 rpm) at 30°C for 48h.
Preparation of inocula
For bacteria and yeasts, a suspension of each microbial
strain (2 mL of 48h old cultures) was used to inoculate
aliquots of 50 mL of liquid medium composed of (%, w/v)
glucose, 1; peptone, 0.5; yeast extract, 0.3; malt extract,
0.3; agar, 2; pH 6.5 (Volesky & Philips 1995) dispensed in
250 mL Erlenmeyer flasks. The flasks were agitated on a
reciprocal shaker at 200 rpm at 30°C ± 2 for 24 h. For
fungi, aliquots of 50 mL of liquid growth medium III were
dispensed in 250 mL Erlenmeyer flasks and sterilized.
The sterilized medium was inoculated with 2 mL of spore
suspension prepared by adding 5 mL sterile distilled water
into 6 days old slant culture. The flasks were agitated on a
rotary shaker (200 rpm) at 30°C for 48h.
การแปล กรุณารอสักครู่..