The Effect of Different Drying Methods on the Phytochemicals and Radical Scavenging Activity of Ceylon Cinnamon (Cinnamomum zeylanicum) Plant Parts

Different plant parts of Ligusticopsis wallichiana (family: Apiaceae) are widely used as traditional medicines. Although many volatile constituents are already identified from the leaves of L. wallichiana, there is no detailed report on the nonvolatile constituents. In the present study, we aimed to isolate and identify the major chemical constituents from the leaves. Bhutkesoside A (1), falcarindiol (2), ferulic acid (3), cnidioside A (4), quercetin 3-O-β-D-glucopyranoside (5), rutin (6), 4′-O-methylquercetin 3-O-β-D-glucopyranoside (7), scopoletin (8), umbelliferone (9), eugenol 4-O-β-D-glucopyranoside (10) and pumilaside A (11) were isolated from the 70% MeOH extract. The structures of isolated compounds were elucidated on the basis of 1H- and 13C-NMR spectroscopic data. Compounds 4–11 are reported for the first time from L. wallichiana. Compounds 5 and 6 showed potent free radical-scavenging activity.

Download Full-text

Effect of Drying Methods on the Antioxidant Activity of Peanut Flour Fermented with Lactobacillus casei LC35

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.554-556.1095 ◽

2012 ◽

Vol 554-556 ◽

pp. 1095-1098

Author(s):

Nai Fu Wang ◽

Wei Qian ◽

Yi Bin Zhou

Keyword(s):

Antioxidant Activity ◽

Lactobacillus Casei ◽

Antioxidant Activities ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Reducing Power ◽

Peanut Flour ◽

Drying Methods ◽

Scavenging Activity ◽

Freeze Dried

Peanut flour (PF) was fermented with Lactobacillus casei LC35 and then dried using different drying methods in the present study. The effect of drying methods on the antioxidant activities (1, 1-diphenyl-2-picrylhydrazyl [DPPH] radical-scavenging activity, reducing power and Fe2+chelating activity) and flavonoids in fermented-PF (FPF) was investigated. Regardless of the drying methods, the dried FPF showed higher antioxidant activities than PF. Drying methods also showed significant effects on the antioxidant activities of FPF. The freeze-dried FPF had the strongest antioxidant activities compared to the vacuum and hot air-dried FPF. A good linear correlation was found between the EC50value of DPPH scavenging activity (R2 = 0.8972, P < 0.05) or reducing power (R2 = 0.9047, P < 0.05) and the concentration of quercetin in PF and dried FPF. These results indicate the dried FPF, especially for the freeze-dried FPF, might be good functional foods with high antioxidant activity.

Download Full-text

Radical scavenging activity and phenolic components in different plant parts of Saraca asoca

Planta Medica ◽

10.1055/s-0031-1282793 ◽

2011 ◽

Vol 77 (12) ◽

Author(s):

AK Pandey ◽

V Ojha ◽

SK Sahu ◽

S Yadav

Keyword(s):

Radical Scavenging Activity ◽

Radical Scavenging ◽

Scavenging Activity ◽

Saraca Asoca ◽

Plant Parts ◽

Phenolic Components

Download Full-text

EVALUATION OF TOTAL PHENOLIC, FLAVONOIDAL CONTENT, AND DPPH FREE RADICAL SCAVENGING ACTIVITY OF METHANOLIC EXTRACT OF AILANTHUS EXCELSA ROXB.

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2017.v10i4.16507 ◽

2017 ◽

Vol 10 (4) ◽

pp. 188

Author(s):

Aruna Kumari ◽

Sharma Ra

Keyword(s):

Antioxidant Activity ◽

Phenolic Content ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Total Phenolic ◽

Scavenging Activity ◽

Total Flavonoid Content ◽

Flavonoid Content ◽

Plant Parts ◽

Ailanthus Excelsa

Objective: Estimation of total phenol, flavonoid and antioxidant activity of various plant parts (leaves, stem, root, flower and fruit) of Ailanthus excelsa Roxb. methanolic extracts.Methods: Different plant parts were extracted with methanol, then the total phenol content was calculated by using Folin–Ciocalteu reagent, total flavonoid content was estimated by using Aluminum Chloride Colorimetric Method and the antioxidant activity was measured by DPPH (1,1-diphenyl-2-picrylhydrazyl radical) assay.Results: The highest total phenolic content (48.38 mg GAE/gdw) was observed in flower and lowest phenolic content in root (28.56 mg GAE/gdw). The highest total flavonoidal content (21.5 mg QE/gdw) was found in leaf and lowest in root (1.11 mg QE/gdw). The highest radical scavenging activity was found in flower extracts with the IC50 value of 36.85 µg/ml and the lowest scavenging activity was observed in root extract that was found to be 1493.46µg/ml.Conclusion: According to the results of present investigation the plant showed significant antioxidant activity that can be used for medical purpose for the treatment of various diseases.Keywords: Antioxidant activity, Ailanthus excelsa Roxb., Total phenolic content, Total flavonoid content, DPPH (2, 2- diphenyl- 1- picryl hydrazyl), Scavenging activity.

Download Full-text