Antioxidant Activity and Discrimination of Organic Apples (Malus domestica Borkh.) Cultivated in the Western Region of Romania: A DPPH· Kinetics–PCA Approach
| Autor: | O. A. Iordănescu, Alina Carmen Iuga, Nicoleta G. Hădărugă, Ionuţ Dascălu, Dina Gligor (Pane), Maria Bala, Ioan David, Gabriel Bujancă, Daniel Ioan Hadaruga |
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| Rok vydání: | 2021 |
| Předmět: |
Malus
Antioxidant DPPH medicine.medical_treatment Kinetics Malus domestica Borkh apple antioxidant activity DPPH· kinetics Plant Science Article chemistry.chemical_compound medicine Food science Time range Ecology Evolution Behavior and Systematics Ecology biology Chemistry DPPH·kinetics Extraction (chemistry) Botany biology.organism_classification QK1-989 principal component analysis discrimination mean DPPH· reaction rate organic and non-organic orchards |
| Zdroj: | Plants Volume 10 Issue 9 Plants, Vol 10, Iss 1957, p 1957 (2021) |
| ISSN: | 2223-7747 |
| DOI: | 10.3390/plants10091957 |
| Popis: | Apple (Malus domestica Borkh.) is one of the most used fruit for beverages in Romania. The goal of the study was to evaluate the antioxidant activity and discrimination of various parts of organic and non-organic apple varieties cultivated in the western region of Romania using the DPPH kinetics–PCA (principal component analysis) approach. Organic and non-organic apples were subjected to solid–liquid ethanol extraction. Core and shell extracts were mixed with DPPH· and spectrophotometrically monitored at 517 nm. Antioxidant activity and mean DPPH· reaction rate at various time ranges reveal significant differences between organic and non-organic samples, as well as apple parts. Organic core and shell extracts had higher antioxidant activities than the corresponding non-organic samples (74.5–96.9% and 61.9–97.2%, respectively, 23.5–94.3% and 59.5–95.5%). Significant differences were observed for the DPPH· reaction rate for the first ½ min, especially in the presence of organic core extracts (3.7–4.8 μM/s). The organic samples were well discriminated by DPPH· kinetics–PCA, the most important variables being the DPPH· reaction rate for the first time range. This is the first DPPH· kinetics–PCA approach applied for discriminating between organic and non-organic fruits and can be useful for evaluating the quality of such type of fruits. |
| Databáze: | OpenAIRE |
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