After 7 days of incubation, 10ml of ethyl acetate was poured in a
Falcon tube (Biologix Research Company Shawnee, US)with the culture
media and the grown mold. They were sonicated with a Bransonic
Sonicator (Branson Ultrasonic Corporation, US) during 20 min, centrifuged
at 3000 rpm (Rolco, Argentina) and then filtered through a filter
paper (Whatman No. 4). This procedure was repeated two more times
to assure a correct extraction of PAT from the culture media. After
that, 5 ml of the filtered was taken and evaporated to 2 ml in a gentle
stream of nitrogen where 150 μl of glacial acetic acid was added until
the remaining filtrate was completely evaporated to dryness. Finally,
the residue was resuspended in 300 μl of 0.1% acetic acid.
After 7 days of incubation, 10ml of ethyl acetate was poured in aFalcon tube (Biologix Research Company Shawnee, US)with the culturemedia and the grown mold. They were sonicated with a BransonicSonicator (Branson Ultrasonic Corporation, US) during 20 min, centrifugedat 3000 rpm (Rolco, Argentina) and then filtered through a filterpaper (Whatman No. 4). This procedure was repeated two more timesto assure a correct extraction of PAT from the culture media. Afterthat, 5 ml of the filtered was taken and evaporated to 2 ml in a gentlestream of nitrogen where 150 μl of glacial acetic acid was added untilthe remaining filtrate was completely evaporated to dryness. Finally,the residue was resuspended in 300 μl of 0.1% acetic acid.
การแปล กรุณารอสักครู่..
