Fig 2. Rarefaction curves of partial 16S rRNA transcript sequences after RNA extraction, cDNA synthesis and PCR amplification from three truckloads of milk samples divided into 15 subsamples as follows: L10, L20, L30 (initial samples), cold-stored at 6°C for 3 to 4 days (L1C4, L2C4, L3C3) for 6 to 7 days (L1C7, L2C7, L3C6); cold-stored at 6°C and N2-flushed for 3 to 4 days (L1N4, L2N4, L3N3) for 6 to 7 days (L1N7, L2N7, L3N6).
