Isolation, Identification, and Biological Evaluation of Phenolic Compounds from a Traditional North American Confectionery, Maple Sugar

2017 ◽  
Vol 65 (21) ◽  
pp. 4289-4295 ◽  
Author(s):  
Yongqiang Liu ◽  
Kenneth N. Rose ◽  
Nicholas A. DaSilva ◽  
Shelby L. Johnson ◽  
Navindra P. Seeram
Author(s):  
Roberto Davila‐Trujillo ◽  
Sibele Santos Fernandes ◽  
Cristiana Lima Dora ◽  
José Maria Monserrat ◽  
Carlos Prentice ◽  
...  

Fitoterapia ◽  
2015 ◽  
Vol 104 ◽  
pp. 80-85 ◽  
Author(s):  
Anastassiya V. Gadetskaya ◽  
Amer H. Tarawneh ◽  
Galiya E. Zhusupova ◽  
Nadezhda G. Gemejiyeva ◽  
Charles L. Cantrell ◽  
...  

1993 ◽  
Vol 19 (7) ◽  
pp. 1491-1500 ◽  
Author(s):  
Rong Tang ◽  
Francis X. Webster ◽  
Dietland M�ller-Schwarze

2021 ◽  
Vol Volume 15 ◽  
pp. 2325-2337
Author(s):  
Mohamed A Abdelgawad ◽  
Arafa Musa ◽  
Atiah H Almalki ◽  
Sami I Alzarea ◽  
Ehab M Mostafa ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1929
Author(s):  
Nesrein M. Hashem ◽  
Mohamed G. Shehata

This study aimed to investigate the antioxidant, antimicrobial, and immunomodulatory activities of a Cleome droserifolia (Forssk.) Del. (Cd) shoot methanolic extracts considering the biological activity of its phytogenic compounds. For this purpose, the Cd phenolic compounds were detected, and an in vitro evaluation of the antioxidant and antimicrobial activities of the Cd extract was performed. For a biological evaluation, 30 v-line rabbits were randomly distributed into three groups with treatments including: a basal diet without Cd shoots powder supplement (C group) or supplemented with 1.25- (Cdl group) or 2.5 (Cdh group)-mg Cd/kg dry matter (DM). The Cd extract showed a linear scavenging activity for 2,2-diphenyl-1-picrylhydrazyl and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid), with the maximal activity observed at a concentration of 1 mg/mL. A total of 16 phenolic compounds were identified by reverse-phase high-performance liquid chromatography (RP-HPLC) in the Cd methanolic extract, among which benzoic acid, rutin, ellagic acid, naringenin, and o-coumaric acid were the major compounds. The methanolic extract of Cd showed inhibitory actions against microbial pathogen species. The in vivo study showed that the two concentrations of Cd significantly improved the redox status of the blood plasma and lysozyme activity. Treatment with Cdh significantly decreased the levels of interleukin-β1 in the blood plasma compared with the control. Moreover, the two concentrations of Cd significantly increased the counts of intestinal and cecal yeast and Lactobacillus species and decreased the Salmonella and Coliform species compared with the control. The aerial parts of the Cd shrub had strong antioxidant, antimicrobial, and immunomodulatory activities, which can improve the overall health status and seem to be related to its impressive range of biologically active phenolic compounds.


2006 ◽  
Vol 40 (20) ◽  
pp. 6275-6281 ◽  
Author(s):  
Melissa A. McKinney ◽  
Lillian S. Cesh ◽  
John E. Elliott ◽  
Tony D. Williams ◽  
David K. Garcelon ◽  
...  

1996 ◽  
Vol 28 (4) ◽  
pp. 331-339 ◽  
Author(s):  
Andrew Swanson ◽  
Dianne Fahselt ◽  
Dale Smith

AbstractA significant negative correlation was found between the quantity of acetone-extractable phenolic compounds and the degree of enzyme polymorphism in eight eastern North American populations of Umbilicaria americana. In sites higher elevations, where UV irradiance was more intense, phenolic levels were significantly lower and within-stand enzyme variability significantly greater than in low elevation sites. Similarly, the phenolic content of thalli collected in Ontario, Canada, over a 16-month sampling period was negatively correlated with mean monthly UV-B irradiance.


2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Mengyue Wang ◽  
Ke Li ◽  
Yuxiao Nie ◽  
Yingfang Wei ◽  
Xiaobo Li

Urtica atrichocaulis, an endemic plant to China, is commonly used to treat rheumatoid arthritis even though its pharmaceutical activities and chemical constituents were not studied. Herein, we reported our investigations on the chemical compositions of the phenolic compounds-rich fraction fromU. atrichocaulis(TFUA) and their antirheumatoid arthritis activities. We found that the TFUA significantly inhibited the adjuvant-induced rats arthritis, carrageenin-induced rats paw edema, cotton pellet-induced mice granuloma, and the acetic acid-induced mice writhing response. Our phytochemical investigations on the TFUA resulted in the first-time isolation and identification of 17 phenolic constituents and a bis (5-formylfurfuryl) ether. The extensive HPLC analysis also revealed the chemical compositions of TFUA. Our further biological evaluation of the main phenolic components, individually and collectively, indicated that the antirheumatoid arthritis activities of TFUA were the combined effect of multiple phenolic constituents.


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