Abstract:

The south of Guangxi belongs to the subtropical monsoon climate, where has abundant sunshine and heat resources, rare rain in winter. Wine grape can be planted successfully by using off-season cultivation technique, rainproof cultivation and artificial inducing sprout in southern Guangxi. The detection showed that the sugar content of cabernet sauvignon and melot reached to 130 g/L, total acidity was 7.58 g/L in cabernet sauvignon fruit, 7.42 g/L in melot fruit. More than 40 volatile compounds were determined and identified by GC-MS in two wines. It contained 56.82% ester, 20.45% alcohol, 15.9% acid, 6.8% others in cabernet sauvignon wine. It contains 55.0% ester, 17.5% alcohol, 20.0% acid, 7.5% others in melot wine. The results indicated that cabernet sauvignon and melot grew well in the south of Guangxi with off-season cultivation technique. The characteristic aromas were exposed in two wines.