Naslov
Total phenolic and flavonoid content of methanolic extracts from Cornus mas L. and Cornus officinalis Siebold & Zucc. leaves and fruits

Autori
Gelo, Andrea ; Friščić, Maja ; Marić, Tihana ; Maleš, Željan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XIV. susret mladih kemijskih inženjera : knjiga sažetaka = XIV Meeting of Young Chemical Engineers : Book of Abstracts / Žižek, Krunoslav ; Katančić, Zvonimir ; Kovačić, Marin - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2022, 115-115

Skup
XIV. susret mladih kemijskih inženjera (SMLKI 2022)

Mjesto i datum
Zagreb, Hrvatska, 24.02.2022. - 25.02.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Cornus mas ; Cornus officinalis ; total phenolic content ; flavonoid content

Sažetak
In this study, total phenolic and flavonoid content of methanolic extracts of leaves and fruits from six samples of Cornus mas L. and one sample of Cornus officinalis Siebold & Zucc., Cornaceae, have been investigated. Samples were air-dried, milled and extracted with methanol in an ultrasonic bath. After filtration, organic solvent was removed using a rotary evaporator and the remaining samples were suspended in distilled water, frozen and afterward subjected to lyophilization. Total phenolic content and flavonoid content were evaluated spectrophotometrically in aqueous solutions of obtained lyophilizates using the Folin-Ciocalteu method and the AlCl3 method, respectively. Pearson’s correlation coefficient (r) was used to establish the relationship between leaf and fruit total phenolic and flavonoid content (ɑ = 0.05). Data analysis was performed in Microsoft Excel (2013). Total phenolic content of C. mas leaf and fruit extracts ranged from 195.32 ± 1.59 to 311.21 ± 1.22 mg gallic acid equivalent (GAE)/g dry extract (DE) and from 9.69 ± 0.58 to 16.63 ± 0.26 mg GAE/g DE, respectively. Total phenolic contents of C. officinalis leaf and fruit extracts were 286.70 ± 1.90 mg GAE/g DE and 13.56 ± 0.15 mg GAE/g DE, respectively. Flavonoid content in leaf extracts of C. mas ranged from 1.20 ± 0.06 to 4.51 ± 0.22 mg quercetin equivalent (QE)/g DE, while flavonoid content in fruit extracts ranged from 0.18 ± 0.04 to 1.07 ± 0.02 mg QE/ g DE. Flavonoid contents of C. officinalis leaf and fruit extracts were 3.66 ± 0.03 and 0.42 ± 0.03 mg QE/g DE, respectively. Very strong negative correlation was observed between total phenolic contents in leaves and fruits of C. mas (r = -0.94, P = 0.005), while between leaf and fruit flavonoid contents of C. mas very strong positive correlation was observed (r = 0.90, P = 0.016).

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Farmacija

POVEZANOST RADA