Chemical composition and antioxidant activity of berry fruits
| Autor: | Jelena Vulić, M Zdravko Sumic, M Sonja Djilas, T Vesna Tumbas, S Gordana Cetkovic, M Sladjana Stajcic, M Jasna Canadanovic-Brunet, N Aleksandra Tepic |
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| Rok vydání: | 2012 |
| Předmět: |
main chemical composition
Bilberry Antioxidant DPPH medicine.medical_treatment Flavonoid antioxidant activity phenolic compounds Berry 01 natural sciences berry fruits chemistry.chemical_compound 0404 agricultural biotechnology lcsh:Technology (General) Botany medicine Food science Cultivar chemistry.chemical_classification 010401 analytical chemistry General Engineering 04 agricultural and veterinary sciences Total dissolved solids 040401 food science 0104 chemical sciences Blowing a raspberry chemistry lcsh:T1-995 |
| Zdroj: | Acta Periodica Technologica, Vol 2012, Iss 43, Pp 93-105 (2012) Acta periodica technologica (2012) (43):93-105 |
| ISSN: | 2406-095X 1450-7188 |
| DOI: | 10.2298/apt1243093s |
| Popis: | The main chemical composition, contents of total phenolic (TPh), total flavonoid (TF), and total monomeric anthocyianin (TMA), as well as the antioxidant activity of two raspberry cultivars (Meeker and Willamette), two blackberry cultivars (Čačanska bestrna and Thornfree) and wild bilberry were studied. The raspberry cultivars had the highest total solids among fruits investigated. Bilberry fruits had the highest sugar-to-acid ratio. Blackberry fruits were richer in crude fibers (cellulose) in comparison to raspberry and bilberry fruits. The content of pectic substances was highest in the bilberry. Also, bilberry had a highest content of TPh (808.12 mg GAE/100 g FW), TF (716.31 mg RE/100 g FW) and TMA (447.83 mg CGE/100 g FW). The antioxidant activity was evaluated spectrophotometrically, using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity assay. The DPPH free radical scavenging activity, expressed as the EC50 value (in mg of fresh weight of berry fruit per ml of the reaction mixture), of bilberry (0.3157 ± 0.0145 mg/ml) was the highest. These results also showed that the antioxidant value of 100 g FW bilberry, raspberry - Willamette, raspberry - Meeker, blackberry - Čačanska bestrna and blackberry - Thornfree is equivalent to 576.50 mg, 282.74 mg, 191.58 mg, 222.28 mg and 272.01 mg of vitamin C, respectively. There was a significant positive correlation between the antioxidant activities and content of total phenolics (RTPh 2=0.9627), flavonoids (RTF 2=0.9598) and anthocyanins (RTMA 2=0.9496) in berry fruits. [Projekat Ministarstva nauke Republike Srbije, br. TR 31044] |
| Databáze: | OpenAIRE |
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