The conservation and study of the regional fruit germplasm represent important cultural strategies in order to valorize the biological resources strictly linked to the natural environment. The aim of this research was to study the nutraceutical value of fruits from ancient apple cultivars suitable to be reintroduced in culture in order to expand the typical produce supply and satisfy the ever growing consumer’s quality requests. The following parameters were studied: total polyphenolic content, according to the spectrophotometric method proposed by Slinkard and Singleton (1977), antioxidant activity, according to the spectrophotometric method (Pellegrini et al., 2003), and the content in vitamin C, analyzed according to the high performance liquid cromatographic methods coupled with a diode array detector of Sanchez et al. (2003) and Gil et al. (1999). Compared with the reference commercial apple cv Golden Delicious, the ancient cultivars shown, in general, higher values of total polyphenolic compounds and a stronger antioxidant activity. Also the content in vitamin C (ascorbic acid plus dehydroascorbic acid) differed from Golden Delicious, even if these parameters may however vary depending on the environmental conditions and agrotechnique. The nutraceutical content of fruits of the ancient cultivars can become an important tool to distinguish the value of these cultivars in order to obtain label certification. Moreover, high quality local productions represent a green house gasses (GHG) emissions resource, one way to become environmentally friendly.
Fruit nutraceutical value in ancient apple cultivars grown in Piedmont (Northern Italy)
DONNO, DARIO;CERUTTI, ALESSANDRO KIM
2010-01-01
Abstract
The conservation and study of the regional fruit germplasm represent important cultural strategies in order to valorize the biological resources strictly linked to the natural environment. The aim of this research was to study the nutraceutical value of fruits from ancient apple cultivars suitable to be reintroduced in culture in order to expand the typical produce supply and satisfy the ever growing consumer’s quality requests. The following parameters were studied: total polyphenolic content, according to the spectrophotometric method proposed by Slinkard and Singleton (1977), antioxidant activity, according to the spectrophotometric method (Pellegrini et al., 2003), and the content in vitamin C, analyzed according to the high performance liquid cromatographic methods coupled with a diode array detector of Sanchez et al. (2003) and Gil et al. (1999). Compared with the reference commercial apple cv Golden Delicious, the ancient cultivars shown, in general, higher values of total polyphenolic compounds and a stronger antioxidant activity. Also the content in vitamin C (ascorbic acid plus dehydroascorbic acid) differed from Golden Delicious, even if these parameters may however vary depending on the environmental conditions and agrotechnique. The nutraceutical content of fruits of the ancient cultivars can become an important tool to distinguish the value of these cultivars in order to obtain label certification. Moreover, high quality local productions represent a green house gasses (GHG) emissions resource, one way to become environmentally friendly.
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