Exploring the nutraceutical potential and biological activities of Arbutus unedo L. (Ericaceae) fruits

2018 ◽  
Vol 122 ◽  
pp. 726-731 ◽  
Author(s):  
Issam Ben Salem ◽  
Souad Ouesleti ◽  
Yassine Mabrouk ◽  
Ahmed Landolsi ◽  
Mouldi Saidi ◽  
...  
Keyword(s):  
Biological Activities ◽  
Arbutus Unedo

scholarly journals Authentication of strawberry tree (Arbutus unedo L.) honeys from southern Europe based on compositional parameters and biological activities

2020 ◽  
Vol 38 ◽  
pp. 100768
Author(s):  
Sandra María Osés ◽  
Sonia Nieto ◽  
Sara Rodrigo ◽  
Sergio Pérez ◽  
Susana Rojo ◽  
...  
Keyword(s):  
Biological Activities ◽  
Southern Europe ◽  
Arbutus Unedo ◽  
Strawberry Tree

scholarly journals Phytochemical Profile, Antiradical Capacity and α-Glucosidase Inhibitory Potential of Wild Arbutus unedo L. Fruits from Central Italy: A Chemometric Approach

Plants ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1785
Author(s):  
Valentina Macchioni ◽  
Veronica Santarelli ◽  
Katya Carbone
Keyword(s):  
Principal Component Analysis ◽  
Biological Activities ◽  
Central Italy ◽  
Principal Component ◽  
Component Analysis ◽  
Anthocyanin Content ◽  
Food Ingredient ◽  
Arbutus Unedo ◽  
Nonparametric Correlation

Nowadays, there is a growing interest in botanicals for human nutrition and care. Arbutus unedo wild berries are edible and medicinal fruits that contain many healthy bioactive components, which can be considered a valuable resource for the food ingredient market and for nutraceutical and cosmetic sectors. In the present study, the polyphenols and in vitro antiradical and hypoglycemic activities of five wild Italian accessions of A. unedo were investigated, and their chemical profiles were treated by means of unsupervised chemometric techniques like the hierarchical and principal component analysis. Moreover, Fourier-transformed mid-infrared spectroscopy was used to provide a rapid assessment of the phytochemical composition of different accessions. Samples differed mainly in their anthocyanin content and overall nutraceutical potential. Anthocyanins were present mainly as glycosides of cyanidin and delphinidin, with delphinidin-3-O-glucoside being the most abundant one, ranging from 49 ± 1 to 111 ± 3 mg g−1 (for P1 and P2, respectively; p < 0.05). Extracts were screened for their in vitro biological activities by using the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), 2,2-diphenyl-1-picrylhydrazyl (DPPH•) antiradical tests, while their hypoglycemic activity was investigated by the α-glucosidase inhibition test. In both in vitro antiradical tests, the highest capacity was recorded for P2 (EC50: 1.17 and 0.064 mg mL−1, for DPPH• and ABTS•+, respectively), with values higher than those reported in the literature for A. unedo fruit extracts. P2 also showed the highest inhibition power towards α-glucosidase (about 70%). Moreover, the nonparametric correlation analysis pointed out a very high significant correlation between the percentage of α-glucosidase inhibition and cyanidin-3-O-rutinoside (r: 0.973; p < 0.01). Finally, the application of hierarchical analysis to samples analyzed provided three different clusters based on the average phytochemical content coded as low, medium and high. Moreover, principal component analysis made it possible to establish similarities among the accessions depending on their overall nutraceutical characteristics and on the relative anthocyanin content.

Improvement of cytoprotective and antioxidant activity of Rosa canina L. and Salix alba L. by controlled differential sieving process against H2O2-induced oxidative stress in mouse primary splenocytes

2017 ◽  
Vol 87 (3-4) ◽  
pp. 191-200 ◽  
Author(s):  
Nidhal Soualeh ◽  
Aliçia Stiévenard ◽  
Elie Baudelaire ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Biological Activities ◽  
Good Alternative ◽  
Activity Levels ◽  
Salix Alba ◽  
Rosa Canina ◽  
Free Process ◽  
Plant Powders ◽  
Sieving Process

Abstract. In this study, cytoprotective and antioxidant activities of Rosa canina (RC) and Salix alba (SA), medicinal plants, were studied on mouse primary splenocytes by comparing Controlled Differential Sieving process (CDSp), which is a novel green solvent-free process, versus a conventional technique, employing hydroethanolic extraction (HEE). Thus, preventive antioxidant activity of three plant powders of homogeneous particle sizes, 50–100 µm, 100–180 µm and 180–315 µm, dissolved directly in the cellular buffer, were compared to those of hydroethanolic (HE) extract, at 2 concentrations (250 and 500 µg/mL) in H2O2-treated spleen cells. Overall, compared to HE extract, the superfine powders, i. e., fractions < 180 µm, at the lowest concentration, resulted in greater reactive oxygen species (ROS) elimination, increased glutathione peroxidase (GPx) activity and lower malondialdehyde (MDA) production. Better antioxidant and preventive effects in pre-treated cells were found with the superfine powders for SA (i. e., 50–100 µm and 100–180 µm, both p < 0.001), and with the intermediate powder for RC (i. e., 100–180 µm, p < 0.05) versus HE extract. The activity levels of catalase (CAT) and superoxide dismutase (SOD) in pretreated splenocytes exposed to H2O2, albeit reduced, were near to those in unexposed cells, suggesting that pretreatment with the fine powders has relatively restored the normal levels of antioxidant-related enzymes. These findings supported that CDSp improved the biological activities of plants, avoiding the use of organic solvents and thus it could be a good alternative to conventional extraction techniques.

Shape‐controlled silver NPs for shape‐dependent biological activities

2017 ◽  
Vol 12 (9) ◽  
pp. 647-651 ◽  
Author(s):  
Fatemeh Sadeghi ◽  
Abolfazl Yazdanpanah ◽  
Amirbabak Abrishamkar ◽  
Fatholah Moztarzadeh ◽  
Arash Ramedani ◽  
...  
Keyword(s):  
Biological Activities ◽  
Silver Nps ◽  
Shape Controlled

Research into chemistry and biological activities of Prangos Lindl. (Apiaceae) species of Turkey

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
KHC Baser ◽  
B Demirci ◽  
G Ozek ◽  
A Duran ◽  
N Tabanca ◽  
...  
Keyword(s):  
Biological Activities

Studies on the chemical constituents and their biological activities of the fruit of Garcinia multiflora

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
JJ Chen ◽  
CW Ting ◽  
MH Yen ◽  
TL Hwang ◽  
C Peng ◽  
...  
Keyword(s):  
Biological Activities ◽  
Chemical Constituents

Biological Activities of Andrographolide and Some Semi-synthesis Nonbitter Andrographolides

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
C Aromdee ◽  
N Sriubolmas ◽  
T Ekalaksananan ◽  
C Pientong ◽  
S Seubsasana ◽  
...  
Keyword(s):  
Biological Activities

Chemical analysis and biological activities of methanol extracts from Astragalus gombiformis Pomel (Fabaceae)

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
H Teyeb ◽  
O Houta ◽  
A Lamari ◽  
M Neffati ◽  
W Douki ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Biological Activities ◽  
Methanol Extracts
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