scholarly journals Bioactive Compounds, Antioxidant, and Antibacterial Properties of Lonicera caerulea Berries: Evaluation of 11 Cultivars

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 624
Author(s):  
Laima Česonienė ◽  
Juozas Labokas ◽  
Ina Jasutienė ◽  
Antanas Šarkinas ◽  
Vilma Kaškonienė ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Vitamin C ◽  
Organic Acids ◽  
Bioactive Compounds ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Lonicera Caerulea ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Ethanolic Extracts

The aim of the study was to evaluate 11 cultivars of blue honeysuckle (Lonicera caerulea L.) for bioactive compounds, antioxidant capacity, and the antibacterial activity of berries. Total phenolic contents (TPCs) and total anthocyanin contents (TACs) were established by using ethanolic extracts. For contents of organic acids and saccharides, aqueous extracts were used, and vitamin C was determined by using oxalic acid solution. DPPH• radical scavenging capacity was evaluated by using ethanolic extracts; antibacterial activity was assessed by using both ethanolic and aqueous extracts. The TPC varied from 364.02 ± 0.41 mg/100 g in ‘Vostorg’ to 784.5 ± 0.3 mg/100 g in ‘Obilnaja’, and TAC ranged from 277.8 ± 1.1 mg/100 g in ‘Čelnočnaja’ to 394.1 ± 8.4 mg/100 g in ‘Nimfa’. Anthocyanins comprised 53.8% of total phenolic contents on average. Among organic acids, citric acid was predominant, averaging 769.41 ± 5.34 mg/100 g, with malic and quinic acids amounting to 289.90 ± 2.64 and 45.00 ± 0.37 mg/100 g on average, respectively. Contents of vitamin C were 34.26 ± 0.25 mg/100 g on average. Organic acids were most effective in the inhibition of both Gram-positive and Gram-negative bacteria tested. In conclusion, berries of L. caerulea are beneficial not only for fresh consumption, but also as a raw material or ingredients of foods with high health-promoting value.

scholarly journals COMPARATIVE STUDY ON THE ANTIOXIDANT ACTIVITIES OF METHANOLIC AND AQUEOUS EXTRACTS OF TERMINALIA BELLERICA

2019 ◽  
pp. 103-110
Author(s):  
RASNA GUPTA ◽  
RAM LAKHAN SINGH ◽  
ANKIT GUPTA
Keyword(s):  
Antioxidant Activities ◽  
Natural Antioxidants ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Fruit Pulp ◽  
Terminalia Bellerica ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Methanolic Extracts ◽  
Better Than

Objective: The present study was undertaken to investigate the antioxidative activity of fruit pulp, seed and bark of T. bellerica. Methods: Methanol (70%) and water were used for the extraction, and the respective extracts were analyzed for total phenolic contents along with the antioxidant activities through different assays. Results: Amongst the tested extracts, methanolic extracts were found to be better than aqueous with the highest total phenolic contents (TPC). Methanolic fruit pulp showed lower IC50 for free radical (118.7 µg/ml), superoxide anion radical (77.65 µg/ml) and hydroxyl radical (73.76 µg/ml) scavenging activities. Methanolic fruit pulp also showed lower IC50 for lipid peroxidation (115.6 µg/ml) and ferric thiocyanate (184.98 µg/ml) assay than aqueous extracts in comparison to standard quercetin. Further, correlation between TPC and antioxidant studies revealed that phenolics are mainly responsible for antioxidant activity of T. bellerica. Conclusion: The current study suggests that the methanolic extract of T. bellerica could be a potential source of natural antioxidants for food and pharmaceutical companies.

scholarly journals Analysis of Selected Physicochemical Properties of Commercial Apple Juices

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1457
Author(s):  
Leszek Rydzak ◽  
Zbigniew Kobus ◽  
Rafał Nadulski ◽  
Kamil Wilczyński ◽  
Anna Pecyna ◽  
...  
Keyword(s):  
Vitamin C ◽  
Antiradical Activity ◽  
Phenolic Content ◽  
Solid Content ◽  
Total Phenolic ◽  
Soluble Solid Content ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Soluble Solid

The paper presents the comparison of quality of six different commercial apple juices produced in Poland. The apple juices came from two different Polish companies. From each manufacturer three various juices were selected: two cloudy and clarified one produced as a mixture of different apple varieties. The following properties were evaluated: density, soluble solid content, viscosity, total phenolic contents, phenolic acid, and antiradical activity. The obtained results showed that three from fourth cloudy juices (M1Sz, M1A and M2A) differed from clarified juices. The highest differences were noticed for total phenolic contents, phenolic acids, antiradical activity and viscosity. The values of these properties ranged between 60.72–103.6 mg GAE·100−1 mL−1 for phenolic contents, 78.3–90.9% for antiradical activity and 2.68–5.79 mPa·s for viscosity. The remaining cloudy juice (M2Sz) was more similar to the clarified ones. The strong correlation between total phenolic content and antiradical activity of apple juices was found. The high correlation coefficient obtained between these features indicates that both producers do not apply excessive amounts of vitamin C during the production of cloudy apple juices. There was also a strong interrelation between the density of juice and solid soluble content. However, no correlation was found between the solid soluble content and the viscosity of the tested juices.

scholarly journals Total Phenolic Contents, Antioxidant Activities and Organic Acids Composition of Three Selected Fruit Extracts at Different Maturity Stages

2014 ◽  
Vol 2 (2) ◽  
pp. 40-46
Author(s):  
Seri Intan Mokhtar ◽  
Chee Leong Pheen ◽  
Ee Ven Lee ◽  
Nur Ain Abd Aziz
Keyword(s):  
Antioxidant Activity ◽  
Citric Acid ◽  
Organic Acids ◽  
Organic Acid ◽  
Malic Acid ◽  
Antioxidant Activities ◽  
Total Phenolic ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Young Stage

The total phenolic contents (TPC), antioxidant activities and organic acid composition of Salacca zalacca, Mangifera indica L. Chok Anan and Baccaurea motleyana Hook. F. extracts at different maturity stages were evaluated by using modified Folin-Ciocalteu assay at 765 nm absorbance, 2,2- diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay and HPLC RP18 column at 215 nm. TPC content ranged from 63.9 mg GAE/100g to 381.23 mg GAE/100g, whereas the antioxidant activity ranged from 3.10% - 84.45%. The M. indica L. Chok Anan contained malic acid and citric acid in the range of 43.897-73.396 mg/100g FW and 2.681-18.428 mg/100g FW at young to ripe stages, respectively. B. motleyana Hook. F. contained citric acid and tartaric acid in the range of 4.649-6.114 mg/100g FW and 3.645-4.365 mg/100g FW at young to ripe stages, respectively. S. zalacca contained malic acid and citric acid in the range of 4.270-17.926mg/100g FW and 0.845-3.284 mg/100g FW at young to ripe stages, respectively. The highest TPC and antioxidant activity were found in the young stage of S. zalacca fruit extract with lowest inhibitory concentration (IC50) valued at 0.57 mgml-1. There was a positive linear correlation between the TPC and antioxidant activities of the fruit extracts. Malic acid is the predominant organic acid in M. indica L. Chok Anan and S. zalacca, while citric acid is the predominant organic acid in B. motleyana Hook. F. This research suggests that the studied fruits at young stage are a better source of TPC and antioxidants. The tested fruits showed a decrease in the concentration of organic acids with ripening.

SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN DAN ANTITUMOR 20 TUMBUHAN OBAT ASAL KABUPATEN MANOKWARI

2008 ◽  
Vol 7 (1) ◽  
Author(s):  
Bimo Budi Santoso
Keyword(s):  
Antioxidant Activity ◽  
Medicinal Plants ◽  
Antitumor Activity ◽  
Traditional Method ◽  
Extraction Efficiency ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Total Phenolic ◽  
Phenolic Contents ◽  
Total Phenolic Contents

<strong><em>Flavanoid, steroid, and terpenoid contents of 20 Manokwari medicinal plants were analyzed.  The antioxidant activity, total phenolic contents and antitumor activity of 20 Manokwari medicinal plants were also evaluated. The result shows that 83% positif to flavanoid test, 59% positif to terpenoid test and only 25% positif steroid. Antioxidant activity and total phenolic contents evaluated using Ferric Thiocianate (FTC) and Folin-Ciocalteu methods respectively. Antioxidant activity and total phenolic contents of medicinal plants were extracted by the traditional method, boiling in water and also in 80% methanol. Twenty plants evaluated in both exstracts have significantly varies of antioxidant activities and phenolic contents,  A significant and linier correlation coefficient between the antioxidant activity and the total phenolic content was found in both aqueous (R<sup>2</sup>= 0,77) and methanol (R<sup>2</sup> = 0,85). Antitumor activity was tested using cell maurine P-388 and only 2 of medicinal plants are active to inhibit cell maurine P-388. Comparing extraction efficiency of the two methods, the methanol extracted phenolic compounds more efficiently, and antioxidant activity of the extract was higher.</em></strong>

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