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Quantificação de açúcares em polpa de fruto demedronheiro (Arbutus unedo) por cromatografia líquidade alta eficiência (HPLC)
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Abstract(s)
Árvore ou arbusto, o Medronheiro, trata-se de uma espécie importante do ponto de vistaecológico, ajudando a manter a diversidade da fauna e evitando a erosão dos solos.É atualmente reconhecida como sendo uma espécie com grande potencial, cada vez maisdesejada por agricultores que procuram novas formas de rendimento, os frutos podem serconsumidos frescos ou transformados em marmeladas, compotas e conservas. No entanto, aprincipal fonte de rendimento para os agricultores resulta da produção de uma bebida comelevado teor alcoólico dos frutos - aguardente de medronho.Os frutos são ricos em vários elementos químicos, designadamente açúcares, compostosfenólicos, minerais (cálcio, potássio), vitaminas (vitamina C e vitamina E), carotenoides,ácidos orgânicos, e pequenas quantidades de etanol, sendo também ricos em ácidos gordosómega-3.Este trabalho foi realizado com base nos dados do Programa de Conservação onde existem204 clones, inseridos em diferentes regiões de proveniência (Monchique, São Mamede,Caldeirão, Barrocal, Odemira nas seguintes freguesias – (São Teotónio, Sabóia e Aljezur),Penha Garcia, Penamacor, Cadaval e por último em Trás-dos Montes nas freguesias – (Fisgasde Ermelo e Peso da Régua), onde foram recolhidos frutos de medronheiros, para preparaçãode polpa (amostra).O presente trabalho é um contributo para a análise de açúcares presentes na polpa demedronho recolhida em diferentes locais. Têm como principal objetivo apurar qual o acessoque têm maior percentagem de açúcares presentes e quais a variáveis que influenciam o teorde açúcares presentes nas amostras recolhidas das diferentes regiões de proveniência. Aquantificação e açúcares foi realizada por cromatografia líquida de alta eficiência (HPLC).
Tree or shrub, the Medronheiro, is an important species from an ecological point ofview, helping to maintain the diversity of fauna and preventing soil erosion.It is currently recognized as a species with great potential, increasingly desired byfarmers looking for new forms of income, the fruits can be eaten fresh or transformed intomarmalades, jams and preserves. However, the main source of income for farmers results fromthe production of a drink with a high alcohol content of fruits - arbutus brandy.The fruits are rich in several chemical elements, namely sugars, phenolic compounds,minerals (calcium, potassium), vitamins (vitamin C and vitamin E), carotenoids, organic acids,and small amounts of ethanol, being also rich in omega-fatty acids. 3.This work was carried out based on data from the Conservation Program where thereare 204 clones, inserted in different regions of origin (Monchique, São Mamede, Caldeirão,Barrocal, Odemira in the following parishes - (São Teotónio, Sabóia and Aljezur), PenhaGarcia, Penamacor, Cadaval and finally in Trás-dos Montes in the parishes - (Fisgas de Ermeloand Peso da Régua), where arbutus fruits were collected to prepare the pulp (sample).The present work is a contribution to the analysis of sugars present in the medronhopulp collected in different places. Their main objective is to determine which access has thehighest percentage of sugars present and which variables influence the content of sugars presentin samples collected from different regions of provenance. Quantification and sugars wereperformed by high performance liquid chromatography (HPLC).
Tree or shrub, the Medronheiro, is an important species from an ecological point ofview, helping to maintain the diversity of fauna and preventing soil erosion.It is currently recognized as a species with great potential, increasingly desired byfarmers looking for new forms of income, the fruits can be eaten fresh or transformed intomarmalades, jams and preserves. However, the main source of income for farmers results fromthe production of a drink with a high alcohol content of fruits - arbutus brandy.The fruits are rich in several chemical elements, namely sugars, phenolic compounds,minerals (calcium, potassium), vitamins (vitamin C and vitamin E), carotenoids, organic acids,and small amounts of ethanol, being also rich in omega-fatty acids. 3.This work was carried out based on data from the Conservation Program where thereare 204 clones, inserted in different regions of origin (Monchique, São Mamede, Caldeirão,Barrocal, Odemira in the following parishes - (São Teotónio, Sabóia and Aljezur), PenhaGarcia, Penamacor, Cadaval and finally in Trás-dos Montes in the parishes - (Fisgas de Ermeloand Peso da Régua), where arbutus fruits were collected to prepare the pulp (sample).The present work is a contribution to the analysis of sugars present in the medronhopulp collected in different places. Their main objective is to determine which access has thehighest percentage of sugars present and which variables influence the content of sugars presentin samples collected from different regions of provenance. Quantification and sugars wereperformed by high performance liquid chromatography (HPLC).
Description
Keywords
Medronheiro Açúcares HPLC