Influence of type of amphora on physico-chemical properties and antioxidant capacity of 'Falanghina' white wines.

The present research was aimed to evaluate the effects of ageing and type of container on physico-chemical indices and on antioxidant compounds of 'Falanghina' wines. Wines were stored for 12months in raw, glazed, and engobe amphorae, and in stainless steel tanks. Lactic, acetic, citric, succinic, and hydroxycinnamoyl tartaric acids, and the antioxidant capacity (DPPH assay) were not affected by the type of container for the duration of the ageing.

Rapid screening for anthocyanins and anthocyanin dimers in crude grape extracts by high performance liquid chromatography coupled with diode array detection and tandem mass spectrometry.

A rapid and efficient method using high performance liquid chromatography coupled with diode array detection and tandem mass spectrometry (HPLC-DAD-MS/MS) for fast screening large numbers of anthocyanins and anthocyanin dimers in different grape skin extracts, without further sample clean-up procedures, was developed. A good separation of most detected anthocyanins was achieved in a run time of 15 min. Identification of anthocyanin pigments required a combination of several information: UV-vis spectra, MS and MS/MS spectra, and elution pattern.