Zawartość wybranych wyróżników chemicznych w owocach trzech odmian jabłoni z uprawy ekologicznej i konwencjonalnej

• Autorzy: Wojdyło A. , Oszmiański J. , Bielicki P.

Warianty tytułu

EN

Chemical composition, phenolic compounds and antioxidant activity of three varieties of apple from organic and conventional farming

• Języki publikacji: PL

Abstrakty

PL

Celem niniejszej pracy było porównanie składu chemicznego, w tym zawartości związków fenolowych i aktywności przeciwutleniającej trzech odmian owoców jabłoni pochodzących z uprawy konwencjonalnej i certyfikowanej uprawy ekologicznej. W owocach oznaczono sucha masę, ekstrakt ogółem, kwasowość ogólną oraz zawartość kwasu askorbinowego. Dodatkowo oznaczono zawartość związków fenolowych metodą chromatografii cieczowej (HPLC) i aktywność przeciwutleniającą. Na poszczególne analizowane wyróżniki chemiczne wpływ miał nie tylko system uprawy tych owoców, ale i badana odmiana. Wyniki badań wskazują, że owoce z produkcji ekologicznej charakteryzowały się wyższą zawartością ekstraktu ogólnego, kwasowością ogólną i pektyn. Natomiast owoce ekologiczne odmiany 'Topaz' i 'Szampion' w przeciwieństwie do odmiany 'Pinova' charakteryzowały się także wyższą zawartością związków biologicznie czynnych, w tym związków fenolowych i kwasu askorbinowego, czego efektem była wyższa aktywność przeciwutleniająca tych odmian.

EN

The aim of this paper was to compare chemical composition, including a content of phenolic compounds, and antioxidant activity of three varieties of apple: Topaz','Szampion', Pinova' from conventional and certified organic farming. There were determined dry matter, total soluble solids, total acidity, ascorbic acid in the fruit. In addition, there was determined a content of phenolic compounds by the high performance liquid chromatography method (HPLC), and antioxidant activity. Separate analysed chemical determinants were influenced not only by the fruit cultivation system, but also the studied variety. The study results show that ecological fruit comprised a higher level of soluble solids, total acidity, pectins. In organic fruit 'Topaz' i 'Szampion', opposite to 'Pinova' cultivars, possess Higher content of bioactive compounds, including phenolic compounds and ascorbic acid occurs in organic fruit 'Topaz' i 'Szampion', opposite to 'Pinova' cultivars. It was reflected in the antioxidant activity.

Słowa kluczowe

PL

jabłoń; uprawa ekologiczna; uprawa konwencjonalna; związki fenolowe

EN

apple; organic farming; conventional farming; antioxidant

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Journal of Research and Applications in Agricultural Engineering
• Rocznik: 2010
• Tom: Vol. 55, nr 4
• Strony: 173--177
• Opis fizyczny: Bibliogr. 39 poz.

Twórcy

autor

Wojdyło A.

autor

Oszmiański J.

autor

Bielicki P.

• Uniwersytet Przyrodniczy we Wrocławiu, Zakład Technologii Owoców i Warzyw,

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