| Autor: |
Mauricio Espinal R, Jorge Iván Daza A, Luz Patricia Restrepo S |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Agronomía Colombiana, Vol 30, Iss 2, Pp 251-259 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
0120-9965 |
| Popis: |
We determined the lipophilic antioxidant activity and β-carotene content with HPLC-UV in guava fruit Psidium guajava L.) varieties Palmira ICA I, Regional Roja and Regional Blanca in the ripening stages: green, semi-ripe, mature and senescent. It was established that the β-carotene content and lipophilic antioxidant activity increased during the ripening process up to the climacteric maximum and decreased during senescence; lipophilic antioxidant activity being higher in the varieties Palmira ICA I (13.06 μmol α-tocoferol/g fruit) and regional roja (14.08 μmol a-tocopherol/g fruit) and lower in the regional blanca variety (7.04 μmol a-tocopherol/g fruit), while β-carotene content was highest in the regional roja variety (85.26 Eq. retinol/100 g fruit) followed by the varieties Palmira ICA I (10.53 Eq. retinol/100 g fruit) and regional blanca (5.78 Eq. retinol/100 g fruit). The best correlation between lipophilic antioxidant activity and β-carotene content was observed in the ‘regional roja’ (r² = 0.830), while the varieties Palmira ICA I and regional blanca showed no correlation |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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