**6.9 DNA barcode**

Several sequences from noncoding spacer region between psbA-trnH and partial coding region of matK of plastid genome provided a good discrimination of pure *olive oil* and its admixture by other vegetable oils such as canola and sunflower.

The plastid based molecular DNA technology has a great potential to be used for rapid detection of adulteration easily up to 5% in *olive oil* (Kumar et al., 2011).
