2.2.2.2. RFLP analysis. For RFLP analysis, the following restriction enzymes
(NewEngland Biolabs)were used CfoI, HaeIII and HinfI for yeasts
and HinfI, HaeIII, TaqI and RsaI for lactic acid and acetic acid bacteria. The
amplified DNAs (5 μl) were digested by 5 U of restriction enzyme in
20 μl reaction mixtures for 2 h at 37 °C, except for the TaqI reaction
which was conducted at 65 °C. Restriction fragments were analyzed
by horizontal 3% agarose gel electrophoresis. DNA ladder markers of
20 and 100 bp (GeneWorks, Adelaide, Australia) were used as the size
standard. Electrophoresis was performed at 140 V for 3 h and the gels
were stainedwith GelRed dye and photographed under transluminated
UV light. To determine species identity, the restriction fragment profiles
were comparedwith those of reference cultures and those published by
Esteve-Zarzoso et al. (1999) and Granchi et al. (1999) for yeasts, Yu et al.
(2009) for lactic acid bacteria and Ruiz et al. (2000) for acetic acid
bacteria.
2.2.2.2 . การวิเคราะห์ RFLP . สำหรับการวิเคราะห์ RFLP , เอนไซม์
ต่อไปนี้ ( นิวอิงแลนด biolabs ) ใช้ cfoi haeiii hinfi สำหรับ , และยีสต์ และ hinfi haeiii
, , และ taqi rsai สำหรับกรดแลคติก และแบคทีเรียกรดอะซิติก .
ขยายแถบ ( 5 μ L ) ถูกย่อยโดยเอนไซม์ใน
5 U ของ L 20 μปฏิกิริยาผสม 2 H ที่ 37 ° C ยกเว้น taqi ปฏิกิริยา
ซึ่งดำเนินการที่ 65 องศา Restriction fragments were analyzed
by horizontal 3% agarose gel electrophoresis. DNA ladder markers of
20 and 100 bp (GeneWorks, Adelaide, Australia) were used as the size
standard. Electrophoresis was performed at 140 V for 3 h and the gels
were stainedwith GelRed dye and photographed under transluminated
UV light. To determine species identity, the restriction fragment profiles
were comparedwith those of reference cultures and those published by
Esteve-Zarzoso et al. (1999) and Granchi et al. (1999) for yeasts, Yu et al.
(2009) for lactic acid bacteria and Ruiz et al. (2000) for acetic acid
bacteria.
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