Seasonal Variation of Qualitative and Quantitative Composition of Phenolic Compounds and Antioxidant Activity in Apple (Malus domestica Borkh.) Fruits

2016 ◽  
Vol 14 (3) ◽  
pp. 1-13 ◽  
Author(s):  
Mindaugas Liaudanskas ◽  
Raimonda Brunevičiūtė ◽  
Kristina Gaivelytė ◽  
Jonas Viškelis ◽  
Pranas Viškelis ◽  
...  
2018 ◽  
Vol 54 (2) ◽  
pp. 348-349
Author(s):  
Mindaugas Liaudanskas ◽  
Kristina Zymone ◽  
Jonas Viskelis ◽  
Darius Kviklys ◽  
Pranas Viskelis ◽  
...  

2021 ◽  
Vol 16 (2) ◽  
pp. 094-102
Author(s):  
Djélé Alette Edwige Ziale ◽  
Kohué Christelle Chantal N’gaman-Kouassi ◽  
Fatou Diane Micheline Baguia-Broune ◽  
Janat Akhanovna Mamyrbekova-Békro ◽  
Yves-Alain Békro

This study is devoted to Musanga cecropioides (Urticaceae), a tropical plant whose leaves and root bark are used in traditional medicine in the treatment of various pathologies. The objective of this work was to study qualitative and quantitative composition of phenolic compounds in extracts of the leaves (McF) and root bark (McR) Musanga cecropioides and to evaluate their antioxidant and anticholinesterase properties. Phytochemical screening using TLC showed that the extracts contain, along with phenolic compounds such as coumarins, flavonoids and tannins, other bioactive phytocompounds namely sterols, terpenes and alkaloids. Quantitative analysis of phenolic phytoconstituents by spectrophotometry showed that contents of total flavonoids and polyphenols in leaves (7.753% and 119.389 mg EAG / g, respectively) are higher than those in the root bark (1.41% and 105.944 mg EAG / g, respectively). The antioxidant activity of total and selective extracts evaluated by FRAP and DPPH methods was found to be significant compared to vitamin C. All the extracts of Musanga cecropioides showed good anticholinesterase activity with percentages of inhibition of the acetylcholinesterase (AChE) ranging from 51.952 to 63.589%.


Antioxidants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 545
Author(s):  
Mindaugas Liaudanskas ◽  
Irena Noreikienė ◽  
Kristina Zymonė ◽  
Rugilė Juodytė ◽  
Vaidotas Žvikas ◽  
...  

We investigated the qualitative and quantitative composition of phenolic compounds in the fruit of Rosa L. cultivars grown in Lithuania. The highest total content of phenolic compounds (50.13 ± 4.17 mg GAE/g, p < 0.05) was determined in fruit samples of Rosa pimpinellifolia L. cultivar “Single Cherry”. The highest levels of hydroxycinnamic acid derivatives were determined in fruit samples of Rosa rugosa Thunb. cultivars “Dart’s Defender” and “Adam Chodun”. The highest flavonoid content was determined in fruit samples of Rosa multiflora Thunb. cultivar “Nana” and R. multiflora species. The strongest antioxidant activity evaluated by applying DPPH and FRAP assays was determined in fruit extracts of R. pimpinellifolia cultivar “Single Cherry” and R. rugosa cultivar “Adam Chodun”. Qualitative and quantitative analysis of phenolic compounds in Rosa L. fruit was performed by applying UHPLC. The following phenolic compounds were identified in fruit samples: caffeic acid, chlorogenic acid, quercetin, quercitrin, (+)-catechin, (−)-epicatechin, (−)-epicatechin gallate, rutin, phloridzin, and kaempferol-3-O-glycoside. A strong correlation was determined between the total amount of phenolic compounds determined in extracts of the fruit samples of Rosa L. cultivars and the radical scavenging and reducing activity of their extracts in vitro (R = 0.767 and 0.727, respectively, p < 0.05).


2005 ◽  
Vol 85 (10) ◽  
pp. 1687-1694 ◽  
Author(s):  
Robert Veberic ◽  
Mateja Trobec ◽  
Karin Herbinger ◽  
Melanie Hofer ◽  
Dieter Grill ◽  
...  

Plants ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 147
Author(s):  
Laima Česonienė ◽  
Paulina Štreimikytė ◽  
Mindaugas Liaudanskas ◽  
Vaidotas Žvikas ◽  
Pranas Viškelis ◽  
...  

Berries of Actinidia kolomikta (A. kolomikta) are known for high ascorbic acid content, but the diversity of phenolic compounds has been little studied. The present research aimed to investigate phenolic compounds and antioxidant activity in berries and leaves of twelve A. kolomikta cultivars. The UHPLC-ESI-MS/MS technique was used to determine differences among cultivars in the quantitative composition of individual phenolic compounds. Antioxidant activity was determined by DPPH• free radical scavenging and CUPRAC methods. In the present study, 13 phenolic compounds were detected in berries, whereas leaves contained 17 phenolic compounds. Flavonols were the primary class found in both berries and leaves; other identified phenolic compounds were flavan-3-ols, flavones and, phenolic acids; and dihydrochalcone phloridzin was identified in the leaves. The amount and variety of phenolic compounds in berries and leaves and antioxidant activity were found to be cultivar-dependent. The highest total content of phenolic compounds was found in the leaves of the cultivar ‘Aromatnaja’ and in the berries of the cultivar ‘VIR-2’. Results of this study have confirmed that berries and leaves of A. kolomikta could be a valuable raw material for both food and pharmaceutical industries.


Plants ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1379
Author(s):  
Ieva Gudžinskaitė ◽  
Elicija Stackevičienė ◽  
Mindaugas Liaudanskas ◽  
Kristina Zymonė ◽  
Vaidotas Žvikas ◽  
...  

The aim of this study was to determine the composition and content of phenolic compounds in ethanol extracts of eight different cultivars of American cranberry (Vaccinium macrocarpon Aiton) fruit using spectrophotometric and UPLC-ESI-MS/MS analysis and to evaluate the antioxidant activity in vitro of these extracts. The highest total amount of phenolic compounds evaluated via Folin–Ciocalteu spectrophotometry was detected in American cranberry fruit samples of the ‘Bain’ clone, and the highest total amount of flavonoids was found in samples of the ‘Drever’ and ‘Baiwfay’ cultivars. The highest total amount of the individual phenolic compounds (519.53 ± 25.12 mg/g DW) identified and quantitatively evaluated via chromatography was detected in samples of the ‘Searles’ cranberry cultivar. In the studied cranberry samples, the predominant phenolic compounds were hyperoside, quercetin, and procyanidin A2, while the amounts of other compounds were significantly lower. HCA and PCA revealed that ‘Woolman’, ‘Holliston’, ‘Pilgrim, and ‘Searles’ fruit samples had different quantitative content of phenolic compounds from other cranberry cultivars. Meanwhile, fruit of ‘Baiwfay’, ‘Drever’, ‘Bain’, and ‘Bergman’ were similar in their phytochemical profile.


2016 ◽  
Vol 201 ◽  
pp. 18-23 ◽  
Author(s):  
Mengxia Zhang ◽  
Guojing Zhang ◽  
Yaohua You ◽  
Chengquan Yang ◽  
Pengmin Li ◽  
...  

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