Study on enhanced extraction and seasonal variation of secondary metabolites in Eucommia ulmoides leaves using deep eutectic solvents

2022 ◽  
Vol 209 ◽  
pp. 114514
Author(s):  
Shengbo Luo ◽  
Xiaomei Ren ◽  
Xiqing Shi ◽  
Kan Zhong ◽  
Zijia Zhang ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Secondary Metabolites ◽  
Deep Eutectic Solvents ◽  
Eucommia Ulmoides

scholarly journals Deep Eutectic Solvents as Extraction Media for Valuable Flavonoids from Natural Sources

2019 ◽  
Vol 9 (19) ◽  
pp. 4169 ◽  
Author(s):  
Dimitris Skarpalezos ◽  
Anastasia Detsi
Keyword(s):  
Secondary Metabolites ◽  
Plant Secondary Metabolites ◽  
Deep Eutectic Solvents ◽  
Direct Analysis ◽  
Review Article ◽  
Present Review ◽  
Natural Sources

The present review article attempts to summarize the use of deep eutectic solvents in the extraction of flavonoids, one of the most important classes of plant secondary metabolites. All of the applications reviewed have reported success in isolation and extraction of the target compounds; competitive, if not superior, extraction rates compared with conventional solvents; and satisfactory behavior of the extract in the latter applications (such as direct analysis, synthesis, or catalysis), wherever attempted.

scholarly journals Seasonal variation in non-structural carbohydrates, sucrolytic activity and secondary metabolites in deciduous and perennial Diospyros species sampled in Western Mexico

PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0187235 ◽  
Author(s):  
Ernesto Ramírez-Briones ◽  
Ramón Rodríguez-Macías ◽  
Eduardo Salcedo-Pérez ◽  
Norma Martínez-Gallardo ◽  
Axel Tiessen ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Secondary Metabolites ◽  
Western Mexico ◽  
Diospyros Species

scholarly journals Seasonal variation of the major secondary metabolites present in the extract of Eremanthus mattogrossensis Less (Asteraceae: Vernonieae) leaves

Química Nova ◽  
2012 ◽  
Vol 35 (11) ◽  
pp. 2139-2145 ◽  
Author(s):  
Dayana Rubio Gouvea ◽  
Leonardo Gobbo-Neto ◽  
Humberto T. Sakamoto ◽  
Norberto Peporine Lopes ◽  
João Luís Callegari Lopes ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Secondary Metabolites

Secondary Metabolites from the Barks of Eucommia ulmoides and Their Bioactivities

2019 ◽  
Vol 41 (1) ◽  
pp. 169-169
Author(s):  
Wen Yan Liu Wen Yan Liu ◽  
Zi Ling Zi Ling ◽  
Dong Dong ◽  
Ke Huan Li Ke Huan Li ◽  
Jian Hua Shao Jian Hua Shao ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Antioxidant Activities ◽  
Ethanol Extract ◽  
2D Nmr ◽  
Eucommia Ulmoides ◽  
Antioxidant Power ◽  
Ic50 Values ◽  
Ferric Reducing Antioxidant Power ◽  
Intense Activity

Eucommia ulmoides Oliv., exhibiting diverse bioactivities including antimicrobial, antioxidant, neuroprotective, anti-tumor and anti-inflammatory properties, has long been known as an active ingredient commonly used in antihypertensive herbal prescriptions in China. The 95% ethanol extract of the barks of E. ulmoides showed antimicrobial and antioxidant activities and then was isolated by bioactivity-guided fractionation to obtain a new cinnamyl glucoside, 1-O-trans-cinnamoyl-β-D-apiofuranosyl-(1→6)-β-D-glucopyranose (1), together with twenty known secondary metabolites (2–21). And their structures were identified by extensive spectroscopic analyses, including 1D and 2D NMR, UV, IR and HRESIMS, and chemical methods. All secondary metabolites were evaluated for their antimicrobial and antioxidant activities in vitro. Compounds 7, 8, 11, and 21 exhibited moderately antimicrobial activity. In the antioxidant activity assay, compounds 3, 7, 11, and 14 showed intense activity in ferric reducing antioxidant power (FRAP) with the values of 9.82 mmol/g, 19.25 mmol/g, 14.52 mmol/g, and 12.58 mmol/g in comparison to Trolox (9.02 mmol/g). And compounds 2, 11, and 14–16 showed more potent activity with IC50 values ranging from 18.34 to 24.36 M than Trolox (26.35 M) in ABTS+• scavenging assay.

scholarly journals Towards eco-friendly crop protection: natural deep eutectic solvents and defensive secondary metabolites

2017 ◽  
Vol 16 (5) ◽  
pp. 935-951 ◽  
Author(s):  
Sanae Mouden ◽  
Peter G. L. Klinkhamer ◽  
Young Hae Choi ◽  
Kirsten A. Leiss
Keyword(s):  
Secondary Metabolites ◽  
Crop Protection ◽  
Deep Eutectic Solvents ◽  
Natural Deep Eutectic Solvents

scholarly journals Seasonal Variation in the Secondary Metabolites and Antimicrobial Activity of Plantago major L. from Egyptian Heterogenic Habitats

2022 ◽  
Vol 62 (1) ◽  
pp. 255-273
Author(s):  
Manar A. Soliman ◽  
Tarek M. Galal ◽  
Mona A. Naeim ◽  
Ahmed A. Khalafallah
Keyword(s):  
Antimicrobial Activity ◽  
Seasonal Variation ◽  
Secondary Metabolites ◽  
Plantago Major

Effects of growing location on the contents of secondary metabolites in the leaves of four selected superior clones of Eucommia ulmoides

2011 ◽  
Vol 34 (3) ◽  
pp. 1607-1614 ◽  
Author(s):  
Juane Dong ◽  
Xihan Ma ◽  
Qin Wei ◽  
Shaobing Peng ◽  
Shechao Zhang
Keyword(s):  
Secondary Metabolites ◽  
Eucommia Ulmoides ◽  
Superior Clones

scholarly journals SEASONAL VARIATION IN PROPHYLACTIC SECONDARY METABOLITES OF VARTHEMIA CANDICANS IN TWO COASTAL HABITATS IN EGYPT

2016 ◽  
Vol 66 (1) ◽  
pp. 1-16
Author(s):  
Fatma Ahmed ◽  
Mahmoud Elhaak ◽  
Khalil Saad-Allah ◽  
Mohamed Kashlana
Keyword(s):  
Seasonal Variation ◽  
Secondary Metabolites ◽  
Coastal Habitats
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