DNA analysis to check wine authenticity and integrity has been reported in several previous studies. This study examines the survival of DNA during wine storage, before and after bottling in the case of a large Italian wine cooperative. Two monovarietal productions: red sparkling Bonarda PDO and white Pinot gris PDO, were followed starting from the end of oenological practices until 1 year after bottling. The wine was analysed using SSR (simple sequence repeats or microsatellites) DNA analysis for four consecutive months before bottling, and month 2, 8 and 12 after bottling. The results showed that after 8 months, DNA degradation increased significantly in the red wine samples in particular, which would hinder DNA traceability.
Read the abstract here