Improved loquat (Eriobotrya japonica Lindl.) cultivars: Variation of phenolics and antioxidative potential |
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| Authors: | Federico Ferreres Daniela Gomes Patrícia Valentão Rui Gonçalves Rafael Pio Edvan Alves Chagas Rosa M Seabra Paula B Andrade |
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| Affiliation: | 1. Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, 30100 Campus University Espinardo, Murcia, Spain;2. REQUIMTE/Serviço de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, R. Aníbal Cunha, 164, 4050-047 Porto, Portugal;3. Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Pernambuco 1777, Caixa Postal 1008, Centro, CEP 85960-000 Marechal Cândido Rondon, PR, Brazil;4. Centro Avançado de Pesquisa Tecnológica do Agronegócio de Frutas, Instituto Agronómico, IAC, Av. Luiz Pereira dos Santos, 1500, Corrupira, 13214-820 Jundiaí, SP, Brazil |
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| Abstract: | Leaves and fruits (peel and flesh) of six improved cultivars (‘Mizuho’, ‘Néctar de Cristal’, ‘Mizauto’, ‘Mizumo’, ‘Centenária’ and ‘NE-3’) of loquat (Eriobotrya japonica Lindl.) were studied for their phenolic composition and antioxidant capacity. The analysis by HPLC-DAD-ESI-MS/MS allowed the identification of 18 compounds (8 hydroxycinnamic acid derivatives and 10 flavonoid glycosides). The quantification of the identified compounds revealed distinct profiles amongst the three analysed materials. Loquat leaves exhibited the lowest amounts of phenolics. 3- And 5-caffeoylquinic, and 5-feruloylquinic acids were the major compounds. Generally, ‘Mizauto’ cultivar presented the highest phenolic content. All loquat materials exhibited DDPH scavenging capacity, in a concentration-dependent manner, the leaves being the most active one. This effect seems to be related to the flavonoid content. |
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| Keywords: | Eriobotrya japonica Loquat Cultivars Phenolic compounds HPLC-DAD-MS/MS-ESI Antioxidant activity |
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