ISHS Acta Horticulturae 754: International Workshop on Advances in Grapevine and Wine Research
INFLUENCE OF ETHYLENE AND 1-METHYLCYCLOPROPENE POSTHARVEST TREATMENTS ON AROMATIC QUALITY OF 'ALEATICO' GRAPES |
| Authors: | D. DeSantis, A. Bellincontro, M. Pasquini, R. Botondi, F. Mencarelli, M. Servili |
| Keywords: | Vitis vinifera, 1-MCP, polyphenols and volatiles compounds |
| Abstract:
The results of an experimental work on grapes (Vitis vinifera L.) variety ‘Aleatico’, regarding ethylene and 1-methylcyclopropene (1-MCP) treatments are reported. Total polyphenols, characteristic anthocyanins and volatile compounds, are represented in this paper. Aleatico grapes were harvested at 20.6% of SSC (soluble solids content) and 2.5 g L-1 of acidity and then treated with 500 ppm of ethylene and/ or 0.5 ppm of 1-methylcyclopropene. The spectrophotometric results of total phenols and athocyanins and HPLC determinations for qualitative assay are significant in order to demonstrate the influence of the treatments. Especially malvidin-3-glucoside, delphinidin and petunidin-3-monoglucoside are stimulated by ethylene treatment. Volatile compounds analysis reveal a significant effect of the gaseous treatments on the content of some typical esters. | |
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