Nghĩa của từ methyl red bằng Tiếng Việt
Đỏ metyl
Đặt câu có từ "methyl red"
1. Tryptophane broth Methyl Red / VogesProskauer tests (MRVP) Tube Agglutination
2. Buffered Glucose broth Voges-Proskauer test reagents (available commercially) Methyl red solution Simmon's Citrate (SC) agar
3. When colorimetric end-point detection is applied, methyl red and bromocresol indicators must be added to the boric acid solutions
4. When colorimetric end-point detection is applied, methyl red and bromocresol indicators must be added to the boric acid solutions.
5. Regular micro-Kjeldahl distillation follows, the ammonia being absorbed in 2% boric acid and titrated with 0.01N potassium biniodate using methyl red-bromcresol green mixed indicator.
6. Gas in EC broth at 45 °C Indole test Methyl red test Voges-Proskauer test Growth on citrate Escherichia coli Type I (typical) + + + - - Type II (anaerogenic) - - + - - Intermediates Type I - - + -* + Type II - + + -* + Enterobacter aerogenes Type I - - - + + Type II - + - + + Enterobacter cloacae Irregular - - - + + Type I - + + - - Type II + - + - - Type VI + - - + + Irregular other types Reactions variable * Weak positive reactions are occasionally found.
7. E. coli that is known to produce gas at 45o C and is capable of fermenting lactose to produce typical reactions on L-EMB agar; if using EC-MUG, a strain that is known to produce $-glucuronidase Enterobacter aerogenes or an equivalent gram negative rod that does not produce "positive" reactions on EMB and is indole-negative, methyl red -negative, VogesProskauer-positive, and citrate positive.
8. According to the presumed biuret content, transfer 25 or 50 ml from the solution mentioned in 7.2 with a pipette, place this quantity in a 100-ml graduated flask and neutralise if necessary with a 0,1 mol/l reagent (4.2 or 4.3) as required, using methyl red as an indicator and add, with the same accuracy as that used when drawing up a calibration curve, 20 ml of the alkaline solution of potassium sodium tartrate (4.4) and 20 ml of the copper solution (4.5).