Lipophilic antioxidant activity of guava fruit varieties palmira ica i, regional roja and regional blanca in four ripening stages
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 lipop...
- Autores:
-
Espinal Ruiz, Mauricio
Daza Agudelo, Jorge Iván
Restrepo Sánchez, Luz Patricia
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2012
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/42140
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/42140
http://bdigital.unal.edu.co/32237/
- Palabra clave:
- Psidium guajava L.
carotene
lipophilic antioxidant activity.
Psidium guajava L.
β-carotene
postharvest
regional varieties.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
Summary: | 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 a-tocopherol/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. |
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