Influence of Harvest Season and Cultivar on the Variation of Phenolic Compounds Composition and Antioxidant Properties in Vaccinium ashei Leaves

Autor: Sandro R. Giacomelli, Angélica Signor Vestena, Caroll Schneider Cezarotto, Maria Helena Vendruscolo, Tatiana Emanuelli, Luana Mota Ferreira, Ritiel Corrêa da Cruz, Letícia Cruz, Luana Haselein Maurer, Verciane Cezarotto
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Molecules, Vol 22, Iss 10, p 1603 (2017)
Molecules; Volume 22; Issue 10; Pages: 1603
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
ISSN: 1420-3049
Popis: The effect of variation of harvest season and cultivar on the total phenolic content (TPC), total flavonoid content (TFC), HPLC-UV/DAD profile and antioxidant properties in Vaccinium ashei (Rabbiteye blueberry) leaves grown in Brazil was evaluated. The cultivars collected in December and March were Aliceblue, Powderblue, Climax, Bluegem and FloridaM. It was observed that leaves from March had the highest TPC values (222 ± 1 mg gallic acid equivalents/g to Aliceblue cultivar) and highest TFC values (49.8 ± 0.8 and 48.7 ± 0.7 µg rutin/g to Clímax and Powderblue cultivars, respectively). The chromatographic profile was quantitatively similar, however, the proportions of each compound were influenced by cultivar and harvest season. Chlorogenic acid and rutin were the main identified phenolic compounds, but chlorogenic acid was the most abundant in both harvest seasons. Antioxidant capacities values ranged from 5.80 ± 0.04 to 105 ± 2 µg/mL (DPPH) and 178 ± 5 to 431 ± 8 mmol Trolox/100 g (ORAC). The cultivar Bluegem by March had the highest values in both assays. The results indicate that the blueberry leaves from different cultivars and harvest seasons have different phenolic compounds content and different antioxidant capacities. In addition, the antioxidant properties demonstrated a high correlation with rutin content.
Databáze: OpenAIRE