Chemical Compositions of Essential Oils from Xyloselinum Vietnamense and X. Selinum Leonidii

The chemical compositions of essential oils obtained by hydrodistillation from leaves and stems of Xyloselinum vietnamense and X. leonidii,two new species belonging to the family Apiaceae, were analyzed by GC-MS. The major components in both species were sabinene, α- and β-pinene, myrcene, β-phellandrene, ( Z)-β-ocimene, and terpinen-4-ol. The monoterpene sabinene was most abundant in the leaves of X vietnamense(75.0%). These compounds might be considered as chemotaxonomic markers of Xyloselinum species. In the DPPH radical scavenging assay, all four essential oils showed moderate activity, while the water extracts exhibited stronger effects. The strong DPPH scavenging activity of the water residues of X. vietnamens and X. leonidii might be due to their phenolic components. This paper is the first report on the chemical compositions and antioxidant activity of X vietnamens and X. leonidii.

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Comparative Chemical Composition and Antioxidant Properties of the Essential Oils of three Sideritis libanotica Subspecies

Natural Product Communications ◽

10.1177/1934578x1501000670 ◽

2015 ◽

Vol 10 (6) ◽

pp. 1934578X1501000 ◽

Cited By ~ 2

Author(s):

Carmen Formisano ◽

Filomena Oliviero ◽

Daniela Rigano ◽

Nelly Apostolides Arnold ◽

Felice Senatore

Keyword(s):

Essential Oils ◽

Antioxidant Properties ◽

Radical Scavenging ◽

Moderate Activity ◽

Ferric Ion ◽

Main Constituent ◽

Dpph Radical ◽

Hexadecanoic Acid ◽

Phytochemical Composition ◽

Dpph Radical Scavenging

The phytochemical composition of the essential oils of three Sideritis libanotica subspecies, namely S. libanotica ssp. libanotica, S. libanotica ssp. linearis and S. libanotica ssp. michroclamys, all collected in Lebanon, was analyzed by GC and GC-M S. The diterpene sideridiol was recognized as the main constituent of both S. libanotica ssp. libanotica (50.8%) and S. libanotica ssp. michroclamys (18.4%) oils, while hexadecanoic acid (10.5%) prevailed in S. libanotica ssp. linearis. The antioxidant activity of the oils was studied in two cell free systems by DPPḢ radical scavenging and ferric ion reduction (FRAP) assays; only S. libanotica ssp. linearis showed a moderate activity when assayed by the FRAP test (0.6± 0.01 mmol TE/mL).

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Effect of solvent types on the antioxidant activity and total flavonoids of some Bangladeshi legumes

Food Research ◽

10.26656/fr.2017.5(4).035 ◽

2021 ◽

Vol 5 (4) ◽

pp. 329-335

Author(s):

M.A. Hossain ◽

M.Y. Arafat ◽

M. Alam ◽

M.M. Hossain

Keyword(s):

Antioxidant Activity ◽

Mung Bean ◽

Radical Scavenging ◽

Total Phenolic ◽

Black Gram ◽

Dpph Scavenging Activity ◽

Green Pea ◽

Dpph Scavenging ◽

Hyacinth Bean ◽

Dpph Radical Scavenging

In this study, an attempt was made to estimate the antioxidant activity of some popular Bangladeshi legumes by employing DPPH radical scavenging assay, total phenolic content (TPC), and ferric reducing antioxidant assay (FRAP). The extraction efficiency and total flavonoid content (TFC) of hyacinth bean (Lablab niger), kidney bean (Phaseolus vulgaris), black gram (Vigna radiate), mung bean (Vigna mungo), and green pea (Pisum sativam) by different solvents were also examined. Extraction was done using 80% acetone, ethanol, and methanol as solvent. The maximum and minimum DPPH scavenging activity was shown by mung bean (27.67±1.53%) and Hyacinth bean (4.33±1.53%), respectively using ethanol as solvent. The highest and lowest FRAP value was recorded 89.60±0.80 μg AAE/mL for green pea and 35.11±1.39 μg AAE/mL for mung bean, respectively with ethanol solvent. For TPC, green pea with ethanol solvent showed the highest value (1045.92±21.30 mg GAE/100 g), and mung bean with ethanol solvent exhibited the lowest value (415.92±1.44 mg GAE/100 g). For TFC, black gram with ethanol solvent exhibited the highest value (342.21±3.05 mg QE/100 g), while mung bean with acetone solvent exhibited the lowest value (77.38±0.80 mg QE/100 g).

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Preparation, Purification and Identification of Antioxidant Peptides with Bienzyme Hydrolysis from Rice Bran Protein

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.610-613.72 ◽

2012 ◽

Vol 610-613 ◽

pp. 72-80 ◽

Cited By ~ 1

Author(s):

De Jun Mei ◽

Guo Ping Yu ◽

An Min Sun

Keyword(s):

Rice Bran ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Scavenging Activity ◽

Dpph Radical ◽

Antioxidant Peptides ◽

Rice Bran Protein ◽

Dpph Scavenging Activity ◽

Dpph Scavenging ◽

Dpph Radical Scavenging

The rice bran protein (RBP) was then hydrolyzed with various proteases (papain, flavorzyme, neutrase, protamex, and trypsin) to prepare antioxidant peptides. The rice bran protein hydrolysates (RBPH) were assessed using method of DPPH radical scavenging ability. Hydrolysate prepared with papain and flavorzyme (activity ratio 1:1) was found to have the highest antioxidant activity (IC50=6.778±0.21 mg/ml). This hydrolysate was purified using ultrafiltration, RBPH-III (Mw＜3KDa) had the highest DPPH and hydroxyl radical scavenging activity (IC50 value of 6.56±0.28, 5.43±0.22, respectively) and highest reducing power activity (1.02±0.18 at 4 mg/mL). Later, RBPH-III was fractionated by SP-SephadexC-25 cation-exchange column into six fractions (A–F), fraction F with the highest DPPH scavenging activity, was then separated by size exclusion chromatography on a SephadexG-25 into three major fractions (F1–F3). Fraction F2 exhibited the highest DPPH scavenging activity was choose to fractionate by reversed-phase high performance liquid chromatography (RP-HPLC), seven antioxidant peptides were isolated, The F2-5 peptide displayed the highest DPPH radical-scavenging activity (58.2±1.63%; at 250 μg/ml) among these peptides, the amino acids composition of F2-5 was determined, which might play an important role on its antioxidant activity. In addition, purified peptide did show remarkable inhibition rate on SGC-7901 cells proliferation, and it also revealed the dose-dependent relationship. The results of this study suggest that rice bran protein hydrolysates are good source of natural antioxidants.

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Carum copticum L. essential oils as natural antimicrobial and antioxidant

Bangladesh Journal of Botany ◽

10.3329/bjb.v44i4.38564 ◽

2018 ◽

Vol 44 (4) ◽

pp. 515-520

Author(s):

M Kazemi

Keyword(s):

Essential Oils ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Dpph Radical ◽

Dpph Radical Scavenging Activity ◽

Carum Copticum ◽

Microbial Strains ◽

Pharmaceutical Industries ◽

Dpph Radical Scavenging ◽

Antioxidant Effects

Carum copticum L. comprises several relevant species for food, cosmetic, perfumery and pharmaceutical industries. GC/MS analysis of the enential oil of C. copticum revealed γ- terpinene as a major component of C. copticum, with its contribution of 33.85%. Essential oils (EOs) exhibited a significant antimicrobial activity against all tested microbial strains. In addition, the C. copticum oil demonstrated the highest DPPH radical scavenging activity. These results clearly show the antimicrobial and antioxidant effects of the plant essential oil.

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Chemical variability and antioxidant activities of the essential oils of the aerial parts of Ammoides verticillata and the roots of Carthamus caeruleus and their synergistic effect in combination

Combinatorial Chemistry & High Throughput Screening ◽

10.2174/1386207323666200606213057 ◽

2020 ◽

Vol 23 ◽

Author(s):

Imane Rihab Mami ◽

Noria Merad-Boussalah ◽

Mohammed El Amine Dib ◽

Boufeldja Tabti ◽

Jean Costa ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Antioxidant Activities ◽

Radical Scavenging Activity ◽

Antioxidant Properties ◽

Radical Scavenging ◽

Natural Food ◽

Chemical Compositions ◽

Chemical Variability ◽

Ammoides Verticillata

Aim and Objective: Oxidative stress is implicated in the development and progression of many disease. Some of appropriate actions that could be initiated to taken to resolve the problem of these diseases are search for new antioxidant substances isolated from plants. The aims of this study were to study the intraspecies variations of A. verticillata and C. caeruleus essential oils from 8 locations using statistical analysis, the in vitro antioxidant properties of collective essential oils and in combinations. Materials and Methods: The essential oils were analyzed by GC and GC-MS. The intraspecies variations of the essential oil compositions were discussed using principal component analysis (PCA) and cluster analysis (CA). The antioxidant properties were evaluated DPPH-radical scavenging activity and β-carotene bleaching test. Results: The main components of Ammoides verticillata collective essential oil (Coll EO) were thymol (30.5%), carvacrol (23.2%), p-cymene (13.1%), limonene (12.5%) and terpinene-4-ol (12.3%). While roots of Carthamus caeruleus essential oil were dominated by carline oxide (86.2%). The chemical variability allowed the discrimination of two main Groups for both Coll EOs. A direct correlation between the altitudes, climate and the chemical compositions was evidenced. Ammoides verticulata and Carthamus caeruleus Coll Eos showed good antioxidant activity. In binary mixture, the interaction both Coll Eos and between oils rich of thymol and/or carvacrol with carlina oxide produced the best synergistic effects, compared to individual essential oils and the synthetic antioxidant (BHT). Conclusion: Ammoides verticillata and Carthamus caeruleus essential oil blends can be used as a natural food preservative and alternative to chemical antioxidants.

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Antibacterial Activities of Essential Oils Extracted from Leaves of Murraya koenigii by Solvent-Free Microwave Extraction and Hydro-Distillation

Natural Product Communications ◽

10.1177/1934578x1200700139 ◽

2012 ◽

Vol 7 (1) ◽

pp. 1934578X1200700 ◽

Cited By ~ 5

Author(s):

Naciye Erkan ◽

Zhou Tao ◽

H. P. Vasantha Rupasinghe ◽

Burcu Uysal ◽

Birsen S. Oksal

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Radical Scavenging ◽

Antibacterial Activities ◽

Solvent Free ◽

Microwave Extraction ◽

Murraya Koenigii ◽

Inhibition Of Growth ◽

Germacrene D ◽

Dpph Radical Scavenging

Solvent-free microwave extraction (SFME) for the isolation of essential oil from leaves of Murraya koenigii L. (Rutaceae) has been compared with the conventional hydro-distilled oil (HD) in terms of yield, composition, antioxidant activity, and antibacterial activity against Listeria innocua. The yield of essential oil obtained from 30 min of SFME was similar to that of HD for 180 min. By GC-MS analysis, the major compounds of the essential oil extracted by SFME, which were obtained in somewhat lower amounts than in the essential oil obtained by HD, were α-copaene (44.3%), β-gurjunene (25.5%), isocaryophyllene (12.1%), β-caryophyllene (8.7%) and germacrene D (2.9%). The content of oxygenated terpenes, slightly higher for the SFME-essential oil (2.3%) than the HD-essential oil (1.4%), were much lower than that of nonoxygenated terpenes in both oils. DPPH radical scavenging activities of both essential oils were relatively low (10%-24%). Complete inhibition of growth of L. innocua was observed with both SFME and HD essential oils, at 400 and 600 μg/mL (minimum inhibitory concentration), respectively. The SFME-essential oil at 300 μg/mL provided 92% inhibition, indicating its potential as a natural antimicrobial agent.

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DPPH-Scavenging Activities and Structure-Activity Relationships of Phenolic Compounds

Natural Product Communications ◽

10.1177/1934578x1000501112 ◽

2010 ◽

Vol 5 (11) ◽

pp. 1934578X1000501 ◽

Cited By ~ 4

Author(s):

Cheng-Dong Zheng ◽

Gang Li ◽

Hu-Qiang Li ◽

Xiao-Jing Xu ◽

Jin-Ming Gao ◽

...

Keyword(s):

Phenolic Compounds ◽

Antiradical Activity ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Basic Structure ◽

Hydroxyl Group ◽

Structure Activity Relationships ◽

Structure Activity ◽

Dpph Scavenging ◽

Dpph Radical Scavenging

Thirty-eight phenolic compounds (including 31 flavonoids) were examined for their DPPH radical-scavenging activities, and structure-activity relationships were evaluated. Specifically, the presence of an Ortho-dihydroxyl structure in phenolics is largely responsible for their excellent antiradical activity. 3-Hydroxyl was also essential to generate a high radical-scavenging activity. An increasing number of hydroxyls on flavones with a 3′,4′-dihydroxyl basic structure, the presence of a third hydroxyl group at C-5′, a phloroglucinol structure, glycosylation and methylation of the hydroxyls, and some other hydroxyls, for example 5-, and 7-hydroxyl in ring A, decreased the radical-scavenging activities of flavonoids and other phenolics.

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Comparison of Volatile Constituents, and Antioxidant and Antibacterial Activities of the Essential Oils of Thymus caucasicus, T. kotschyanus and T. vulgaris

Natural Product Communications ◽

10.1177/1934578x1100600133 ◽

2011 ◽

Vol 6 (1) ◽

pp. 1934578X1100600 ◽

Cited By ~ 7

Author(s):

Shiva Asbaghian ◽

Ali Shafaghat ◽

Khalil Zarea ◽

Fakhraddin Kasimov ◽

Farshid Salimi

Keyword(s):

Antibacterial Activity ◽

Essential Oils ◽

Antioxidant Activities ◽

Radical Scavenging ◽

Antibacterial Activities ◽

Dilution Method ◽

Aerial Parts ◽

Main Components ◽

Dpph Radical Scavenging ◽

Broth Dilution

A comparison of the chemical composition, and antioxidant and antibacterial activities of the essential oils obtained from the aerial parts of Thymus caucasicus, T. kotschyanus, and T. vulgaris was carried out. The oils, obtained by hydrodistillation, were analyzed by GC and GC/MS. Twenty, 29 and 22 compounds representing 94.8%, 96.6% and 98.2% of the essential oils of T. caucasicus, T. kotschyanus and T. vulgaris, respectively, have been identified. The oil of T. caucasicus was characterized by 1,8-cineol (21.5%), thymol (12.6%), β-fenchyl alcohol (8.7%), nerolidol (7.8%), terpinolene (7.2%), α-pinene (7.0%) and myrcene (6.8%). In the oil of T. kotschyanus, carvacrol (24.4%), β-caryophyllene (14.5%), γ-terpinene (12.4%), α-phellandrene (10.8%), p-cymene (9.8%) and thymol (6.8%) were the predominant compounds, whereas the main components of T. vulgaris oil were thymol (43.8%), p-cymene (15.2%), germacrene-D (11.7%), terpinolene (3.4%), carvacrol (3.2%), β-caryophyllene (2.8%) and α-thujene (2.2%). In all three plants oil, hydrocarbon monoterpenes predominated over sesquiterpenes. Antioxidant activities were assessed by determining IC50 values in the DPPH radical scavenging assay. Antibacterial activity was determined by measuring minimum inhibitory concentration (MIC) using the broth dilution method. The essential oils of T. caucasicus, T. kotschyanus and T. vulgaris showed free radical scavenging and antibacterial activity.

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Chemical Composition and TLC-DPPH-Radical Scavenging Activity ofCyperus alternifoliusRottb. Essential Oils

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2017.1354723 ◽

2017 ◽

Vol 20 (4) ◽

pp. 1125-1130 ◽

Cited By ~ 2

Author(s):

Shimaa S. Elshrif ◽

Abd El-Nasser G. El Gendy ◽

Abdelsamed I. Elshamy ◽

Mahmoud I. Nassar ◽

Hesham R. El-Seedi

Keyword(s):

Chemical Composition ◽

Essential Oils ◽

Radical Scavenging Activity ◽

Radical Scavenging ◽

Scavenging Activity ◽

Dpph Radical ◽

Dpph Radical Scavenging Activity ◽

Dpph Radical Scavenging

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Black Tea Samples Origin Discrimination Using Analytical Investigations of Secondary Metabolites, Antiradical Scavenging Activity and Chemometric Approach

Molecules ◽

10.3390/molecules23030513 ◽

2018 ◽

Vol 23 (3) ◽

pp. 513 ◽

Cited By ~ 16

Author(s):

Wojciech Koch ◽

Wirginia Kukula-Koch ◽

Łukasz Komsta

Keyword(s):

Antioxidant Properties ◽

Radical Scavenging ◽

Principal Component ◽

Black Tea ◽

Epicatechin Gallate ◽

Tea Infusions ◽

Chemometric Approach ◽

Dpph Scavenging ◽

Dpph Radical Scavenging ◽

Comprehensive Study

A comprehensive study on the composition and antioxidant properties of black tea samples with a chemometric approach was performed via LC-ESI-Q-TOF-MS, DPPH radical scavenging assay, and Folin–Ciocalteu assay (TPC). Marked differences between the teas from seven different countries (China, India, Iran, Japan, Kenya, Nepal, Sri Lanka) were shown. The Indian samples demonstrated the highest total catechin content (184.8 mg/100 mL), the largest TPC and DPPH scavenging potential (58.2 mg/100 mL and 84.5%, respectively). The applied principal component analysis (PCA) and ANOVA revealed several correlations between the level of catechins in tea infusions. EC (epicatechin), ECG (epicatechin gallate), EGC (epigallocatechin), and EGCG (epigallocatechin-3-gallate) content was not correlated with DPPH, gallic acid, and TPC; however, a strong correlation of EC and ECG between themselves and a negative correlation of these two catechins with EGCG and EGC was noted. Interestingly, simple catechins were not found to be responsible for antioxidant properties of the black teas. The samples collected in the higher altitudes were similar.

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