scholarly journals UV-B Induced Changes in the Secondary Metabolites of Morus alba L. Leaves

Molecules ◽  
2010 ◽  
Vol 15 (5) ◽  
pp. 2980-2993 ◽  
Author(s):  
Xi-Da Gu ◽  
Ming-Yao Sun ◽  
Lin Zhang ◽  
Hong-Wei Fu ◽  
Lei Cui ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Morus Alba ◽  
Induced Changes

scholarly journals Boiling and steaming induced changes in secondary metabolites in three different cultivars of pak choi (Brassica rapa subsp. chinensis)

2019 ◽  
Vol 82 ◽  
pp. 103232 ◽  
Author(s):  
Xiaomin Chen ◽  
Franziska S. Hanschen ◽  
Susanne Neugart ◽  
Monika Schreiner ◽  
Sara A. Vargas ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Brassica Rapa ◽  
Pak Choi ◽  
Induced Changes

scholarly journals Investigation of Chemical Profiles of Different Parts of Morus alba Using a Combination of Molecular Networking Methods with Mass Spectral Data from Two Ionization Modes of LC/MS

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1711
Author(s):  
Seong Yeon Choi ◽  
Jinyoung Park ◽  
Juyeol Kim ◽  
Jiho Lee ◽  
Heejung Yang
Keyword(s):  
Secondary Metabolites ◽  
Physicochemical Properties ◽  
Spectral Data ◽  
Morus Alba ◽  
Single Plant ◽  
Mass Spectral Data ◽  
Molecular Networking ◽  
Mass Spectral ◽  
Chemical Profiles ◽  
Different Parts

Plants produce numerous secondary metabolites with diverse physicochemical properties. Because different parts of a single plant produce various components, several spectroscopic methods are necessary to inspect their chemical profiles. Mass spectral data are recognized as one of the most useful tools for analyzing components with a wide range of polarities. However, interpreting mass spectral data generated from positive and negative ionization modes is a challenging task because of the diverse chemical profiles of secondary metabolites. Herein, we combine and analyze mass spectral data generated in two ionization modes to detect as many metabolites as possible using the molecular networking approach. We selected different parts of a single plant, Morus alba (Moraceae), which are used in the functional food and medicinal herb industries. The mass spectral data generated from two ionization modes were combined and analyzed using various molecular networking workflows. We confirmed that our approach could be applied to simultaneously analyze the different types of secondary metabolites with different physicochemical properties.

Comparative Analysis of Secondary Metabolites and Metabolic Profiling between Diploid and Tetraploid Morus alba L.

2021 ◽  
Vol 69 (4) ◽  
pp. 1300-1307 ◽  
Author(s):  
Chang Ha Park ◽  
Ye Eun Park ◽  
Hyeon Ji Yeo ◽  
Jeong Su Yoon ◽  
Soo-Yun Park ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Secondary Metabolites ◽  
Metabolic Profiling ◽  
Morus Alba

scholarly journals Chemical evaluation and anti-radical activity of varieties of Morus alba l. (morera, moraceae) from Venezuela.

Bionatura ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 1579-1585
Author(s):  
Daynet Sosa del Castillo ◽  
José Johnatan Quintero Mesa ◽  
Yeifre José Rojas Alvear ◽  
María Rodríguez ◽  
Ramón Antonio Rea Suárez ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Amino Acid Content ◽  
Morus Alba ◽  
Soluble Carbohydrates ◽  
Soluble Carbohydrate ◽  
Primary And Secondary Metabolites ◽  
Methanolic Extracts ◽  
Chemical Evaluation ◽  
Chromatographic Profile ◽  
White Mulberry

Mulberry (Morus alba L.), known as white mulberry, is a plant widely used in medicine and food due to its chemical composition. The qualitative study of the primary and secondary metabolites of the methanolic extracts of the four varieties of Morera was developed by chromatographic profile (TLC) against standards. Quantification was performed through colorimetric assays. All results were analyzed through statistical analysis. The results indicated the existence of similarities between varieties for both primary and secondary metabolites. The radical capacity of the varieties analyzed was also evaluated by finding that the Táchira variety had the highest anti-radical capacity with an IC50 of 553.58 ± 3.23 µg / mL followed by the Maracay IC50 varieties of 1054.01 ± 1.76 µg / mL, Boconó IC50 of 1398.93 ± 2.23 µg / mL and Yu-62 IC50 of 3817.89 ± 18.08 µg / mL. It was found that the use of the thin layer chromatography (CCF) technique was efficient to detect the presence of phenolic compounds, soluble carbohydrates, and amino acids in the four varieties studied. The Yu-62 variety had the highest total phenol contents and proteins; the amino acid content was higher for the Táchira variety, while the soluble carbohydrate content was higher in the Boconó variety. The presence of saponins was not detected in any of the four varieties evaluated

Interpretation of irradiation-induced changes in electron diffractograms and images of extinction contours at low temperatures

1984 ◽  
Vol 42 ◽  
pp. 268-269
Author(s):  
E. Knapek ◽  
H. Formanek ◽  
G. Lefranc ◽  
I. Dietrich
Keyword(s):  
Low Temperatures ◽  
Carbon Films ◽  
Organic Crystals ◽  
Wide Spread ◽  
Lens System ◽  
Preparation Conditions ◽  
Thin Carbon ◽  
Electron Diffractograms ◽  
Diffraction Patterns ◽  
Induced Changes

A few years ago results on cryoprotection of L-valine were reported, where the values of the critical fluence De i.e, the electron exposure which decreases the intensity of the diffraction reflections by a factor e, amounted to the order of 2000 + 1000 e/nm2. In the meantime a discrepancy arose, since several groups published De values between 100 e/nm2 and 1200 e/nm2 /1 - 4/. This disagreement and particularly the wide spread of the results induced us to investigate more thoroughly the behaviour of organic crystals at very low temperatures during electron irradiation.For this purpose large L-valine crystals with homogenuous thickness were deposited on holey carbon films, thin carbon films or Au-coated holey carbon films. These specimens were cooled down to nearly liquid helium temperature in an electron microscope with a superconducting lens system and irradiated with 200 keU-electrons. The progress of radiation damage under different preparation conditions has been observed with series of electron diffraction patterns and direct images of extinction contours.

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