scholarly journals Kualitas, Komposisi Kimia, dan Aktivitas Anti Oksidan Minyak Kenanga (Cananga odorata)

2016 ◽  
Vol 9 (1) ◽  
pp. 3 ◽  
Author(s):  
Rini Pujiarti ◽  
Titis Budi Widowati ◽  
Kasmudjo ◽  
Sigit Sunarta
Keyword(s):  
Chemical Composition ◽  
Steam Distillation ◽  
Antioxidative Activity ◽  
Positive Control ◽  
Benzyl Benzoate ◽  
Water Steam ◽  
Germacrene D ◽  
Dpph Scavenging ◽  
Dpph Scavenging Assay ◽  
Cananga Odorata

Minyak kenanga pada penelitian ini diperoleh dari bunga kenanga segar dengan penyulingan cara pengukusan. Uji kualitas fisik minyak kenanga cukup memuaskan dan sesuai dengan standar SNI 06-3949-1005. Komposisi kimia minyak kenangan diuji menggunakan GC-MS. Hasil analisis GC-MS mengidentifikasikan adanya 23 komponen kimia penyusun minyak kenanga. Komponen utama penyusun minyak kenanga yang dihasilkan pada penelitian ini adalah caryophyllene (36,44%), â-linalool (5,97%), á-caryophyllene (9,61%), germacrene D (17,23%), dan benzyl benzoate (7,18%). Pengujian antioksidan minyak kenanga dengan metode DPPH scavenging assay menunjukkan aktivitas antioksidan yang lembut dari minyak kenangan (IC50: 2,29 mg/ml) jika dibandingkan dengan kontrol positif BHA (IC50: 0,03 mg/ml). Penelitian ini mengidentifikasikan bahwa minyak kenanga memiliki potensi sebagai antioksidan alami yang lembut.Kata kunci: Cananga odorata, minyak atsiri, kualitas, komposisi kimia, antioksidan.  Quality, chemical composition, and antioxidative activity of cananga (Cananga odorata) oilAbstractCananga oil in this study was obtained from fresh flowers of Cananga odorata by water-steam distillation. The result of physical properties of cananga oil were compared with the SNI 06-3949-1005 showed that cananga oil was satisfied the quality prescribed by standard. The chemical composition of cananga oil was analyzed by GC-MS. GC-MS analysis showed that 23 compounds have been identified. The main compounds of cananga oil were caryophyllene (36.44%), â-linalool (5.97%), á-caryophyllene (9.61%), germacrene D (17.23%) and benzyl benzoate (7.18%). The DPPH scavenging assay showed that cananga oil possess mild antioxidant activity (IC50: 2.29 mg/ml) if compared with positive control of BHA (IC50: 0.03 mg/ml). This study indicated that cananga oil has potency as mild natural antioxidant. 

scholarly journals Chemical Composition of Essential Oil from the Peel of Chinese Torreya grandis Fort

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Tao Feng ◽  
Jian-jie Cui ◽  
Zuo-bing Xiao ◽  
Huai-xiang Tian ◽  
Feng-ping Yi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Cold Pressing ◽  
Germacrene D ◽  
Torreya Grandis

The composition of the peel essential oil of Torreya grandis fort obtained by cold pressing and steam distillation was determined by GC and GC/MS. 62 constituents accounting for 99.6% of the total pressed oil were identified while 59 compounds accounting for 99.4% of the steam distilled oil were identified. Limonene (35.6–37.1%), α-pinene (20.1–24.1%), and δ-carene (3.3–3.9) were the major constituents. Others include γ-carene (3.8-3.9%), germacrene D (2.5–2.9%), and β-farnesene (2.7-2.8%).

scholarly journals STUDY OF THE CHEMICAL COMPOSITION IN LEAVES AND OIL OF Cananga odorata (Lam.) IN BEN TRE PROVINCE

2020 ◽  
Vol 1 (40) ◽  
pp. 92-102
Author(s):  
Chau Nguyen Minh Doan ◽  
Tin Thanh Nguyen
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Hexane Extract ◽  
Geranyl Acetate ◽  
Crystalline Solid ◽  
Water Volume ◽  
Fresh Weight ◽  
Benzyl Benzoate ◽  
Physical And Chemical ◽  
Cananga Odorata

Investigation of the chemical composition of Cananga odorata(Lam.) leaves and essential oil in Ben Tre Province was conducted with steamenticing distillation method, extraction nhexane and Soxhlet with the solvents of nhexane, dietyl ether respectively. The results have determined the distillation conditions and the content of Cananga odorata (Lam.) essential oil by fresh weight and water volume is: 1: 3 (gram / ml)with distillation time: 3 to 4 hours. The content essential oil of Cananga odorata (Lam.) flower obtained in dry weight is 1.10% -1.26% and in fresh weight is 0.56% - 0.65%. The results of the study identified some physical and chemical indexes: the essential oil of Cananga odorata (Lam.) flower in Ben Tre is yellow, clear, has a stronger aroma and is lighter than water; Physical and chemical indices of the essential oil of Cananga odorata(Lam.) flower measured in three different lands of Ben Tre and collected during the same period showed: The density changed from 0.92 - 0.95; Refractive index varies from 1.4952 - 1.4991; The acid index varies from 0.13 to 0.38; The ester index ranged from 37.55 to 38.11; The saponification index ranged from 37.67 to 38.49. Mass SpectrometryMS method has been identified that the main chemical composition the essential oil of Cananga odorata (Lam.) flower in three regions are consistent with the results of the authors who have studied theessential oil of Cananga odorata (Lam.) flower in the North and include the following components: L-linalol, geraniol, geranyl axetat, benzyl benzoat, anđehit benzoic, etyl benzoat, D-germacren,... In which, the main ingredents of Cananga odorata (Lam.) flower in n-hexane extract are: benzyl benzoate, D-germacren,L-linalol, b-caryophyllen; The main components when make in dietyl ether are: benzyl benzoate, geranyl acetate, anisyl acetone, D-germacren; The main ingredients of Cananga odorata (Lam.) leaf inn-hexane extract include: L-linalol, transgeraniol, geranyl acetate,...From n-hexane solvent extract, we isolated, purified and determined the structure of the crystalline solid is benzyl benzoate.

scholarly journals First record of the chemical composition of essential oil of Piper bellidifolium, Piper durilignum, Piper acutilimbum and Piper consanguineum from the Brazilian Amazon forest

2018 ◽  
Vol 48 (4) ◽  
pp. 330-337 ◽  
Author(s):  
Carolina Alves de ARAUJO ◽  
Claudio Augusto Gomes da CAMARA ◽  
Marcilio Martins de MORAES ◽  
Geraldo José Nascimento de VASCONCELOS ◽  
Marta Regina Silva PEREIRA ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Principal Component ◽  
First Record ◽  
Amazon Forest ◽  
Chemical Profile ◽  
Flame Ionization ◽  
Germacrene D ◽  
Chemical Class

ABSTRACT Piper bellidifolium, Piper durilignum, Piper acutilimbum and Piper consanguineum are bushes that occur in the Amazon and are morphologically similar. With the aim of analyzing the chemical profile of the volatile constituents of these species, essential oils from the leaves were obtained through steam distillation and analyzed using gas chromatography-flame ionization detection (GC-FID) and gas chromatograph coupled to a mass spectrometer (GC-MS). The chemical analysis enabled the identification of 95 compounds representing 96.3 ± 0.6% of the P. bellidifolium oil, 95.5 ± 0.71% of the P. durilignum oil, 98.0 ± 1.0% of the P. acutilimbum oil and 96.1 ± 2.1% of the P. consanguineum oil. Although sesquiterpenes were the predominant chemical class in the oils of the four species, qualitative and quantitative differences were found in their chemical composition. The major constituents were (E)-nerolidol (20.3 ± 0.4%) in the P. bellidifolium oil, germacrene D (11.1 ± 0.3%) in the P. durilignum oil, and γ-eudesmol in both the P. consanguineum (18.6 ± 0.5%) and P. acutilimbum (7.5 ± 0.4%) oils. Despite their morphological similarity, a principal component analysis (PCA) of the GC-MS data clearly separated the four species according to the chemical profile of the essential oil extracted from their leaves.

scholarly journals Chemical Composition of Algerian Thymus algeriensis Boiss. & Reut. and Marrubium vulgare L. (Lamiaceae) Essential Oils from the Aures Region

2020 ◽  
Vol 7 (2) ◽  
pp. 1-14
Author(s):  
Sara Kebbi ◽  
Hamza Fadel ◽  
Jean-claude Chalchat ◽  
Gilles Figueredo ◽  
Pierre Chalard ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Steam Distillation ◽  
Oil Composition ◽  
Thymus Algeriensis ◽  
Aerial Parts ◽  
Germacrene D ◽  
Marrubium Vulgare ◽  
Main Components ◽  
Total Oil

AbstractThis study was aimed to determine the chemical composition of essential oils obtained from aerial parts of Thymus algeriensis Boiss. & Reut. and Marrubium vulgare L. collected in the Aures region of Algeria. Essential oils were extracted by steam distillation method and analyzed using GC-MS and GC-FID techniques. Thirty-five (35) and twenty-nine (29) components were identified respectively in T. algeriensis and M. vulgare essential oils to represent respectively 94.8% and 75.7% of the total oil composition. The main compounds of T. algeriensis oil were germacrene D (29.6%), β-caryophyllene (11.0%), E-β-farnesene (7.8%), bicyclogermacrene (4.4%) and δ-cadinene (4.0%), while, β-bisaboene (36.3%), β-caryophyllene (7.8%), phytol (6.2%), nonacosane (4.0%) and heptacosane (3.3%) were the main components of M. vulgare oil. The richness of these two oils in germacrene D and β-bisaboene respectively could suggest a new bioactivity.

Aristolochia triangularis Cham. stems and leaves essential oils and their antimicrobial and antimycobacterial effects

2020 ◽  
Vol 10 ◽  
Author(s):  
Ionara I. Dalcol ◽  
Alessandra O. Pereira ◽  
Luisa H. Paz ◽  
Gabriela Benetti ◽  
Fallon S. Siqueira ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Candida Glabrata ◽  
Skin Diseases ◽  
Enterobacter Aerogenes ◽  
Gas Chromatography Mass Spectrometry ◽  
Moderate Activity ◽  
Circulatory System Diseases ◽  
Germacrene D ◽  
Stems And Leaves

Background: Aristolochia triangularis Cham., popularly known as the "cipó-mil-homens", "angelicó" and "ypê-mi", is applied for the treatment of wounds, skin diseases (6,7), digestive and circulatory system diseases as an antipyretic and for malaria fever. Objective: In this work we investigated the chemical composition, the antimicrobial and antimycobacterial activities of the essential oils (EOs) extracted from A. triangularis fresh stems and leaves collected in Southern Brazil. Methods: Fresh stems and fresh leaves of Aristolochia triangularis Cham. were separately subjected to hydrodistillation using a Clevenger-type apparatus. The chemical composition of the essential oils (EOs) were analyzed by gas chromatography/mass spectrometry (GC/MS). The oil samples were evaluated for their antimycobacterial, antibacterial and antifungal activities against twenty-four microorganisms. Results: Hydrodistillation of fresh stems and leaves of A. triangularis resulted in 0.16% (w/w) and 0.37% (w/w) respectively of light-yellow oils. Germacrene D is found in 13.2 - 13.5% in both EOs. The constituent most abundant in the stems EO (19.18%) was the oxygenated diterpene ent-Kaur-16-en-19-al (10), along with E-nerolidol (17.89%). The main constituents of the leaves EO were bicyclogermacrene (24.79%), β-elemene (11.30%), E-caryophyllene (10.40%) and germacrene A (9.42%), in addition to the previously mentioned germacrene D. The stems and leaves EOs showed capacity to inhibit the Gram-negative Enterobacter aerogenes and the stems EO capacity to inhibit Staphylococcus aureus, with MIC values of 31.2 µg/mL. S. aureus was moderately sensitive to leaves EO, while stems EO displayed moderate activity against Enterococcus faecalis and Salmonella typhimurium (MIC values of 62.5 µg/mL). Candida glabrata was highly susceptible to both EOs (MIC values < 3.9 µg/mL). The EOs showed moderate potential to inhibit the growth of Cryptococcus gatti and Cryptococcus neoformans (MICs of 62.5 μg/mL). Conclusion: The A. triangularis essential oils from stems and leaves displayed capacity to inhibit Enterobacter aerogenes (MIC values of 31.2 µg/mL) and high antifungal effect against Candida glabrata (MIC values of <3.9 µg/mL). Mycobacterium massiliense and M. abscessus were susceptible to the leaves EO, with MICs of 39.06 μg/mL. These results showed the A. triangularis essential oils potential as antifungal and antimycobacterial to be used in the development of new antibiotic.

scholarly journals Stem Lettuce and Its Metabolites: Does the Variety Make Any Difference?

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 59
Author(s):  
Janusz Malarz ◽  
Klaudia Michalska ◽  
Anna Stojakowska
Keyword(s):  
Chemical Composition ◽  
Plant Material ◽  
Methanolic Extract ◽  
Sesquiterpene Lactones ◽  
Scavenging Activity ◽  
Nmr Analysis ◽  
Caffeic Acid Derivatives ◽  
Aerial Parts ◽  
Dpph Scavenging Activity ◽  
Dpph Scavenging

The objective of the present study was to characterize chemical composition of hitherto unexamined aerial parts of Lactuca sativa var. angustana cv. Grüner Stern. In contrast to leafy and head varieties of the lettuces, asparagus lettuce grown in Europe is much less studied. Fractionation of a methanolic extract from leaves of L. sativa cv. Grüner Stern, supported with HPLC/DAD and 1H NMR analysis, led to the isolation and/or identification of numerous terpenoid and phenolic compounds, including five apocarotenoids—(-)-loliolide, (+)-dehydrovomifoliol, blumenol A, (6S,9S)-vomifoliol, and corchoionoside C; three sesquiterpene lactones; two lignans—((+)-syringaresinol and its 4-O-β-glucoside); five caffeic acid derivatives; and three flavonoids. Some of the compounds, to the best of our knowledge, have never been isolated from L. sativa before. Moreover, monolignols, phenolic acids and a tryptophan-derived alkaloid were found in the analyzed plant material. Stems, leaves and shoot tips of the asparagus lettuce were examined to assess their phenolics and sesquiterpene lactone content as well as DPPH scavenging activity. Another stem lettuce—L. sativa var. angustana cv. Karola, two cultivars of leafy lettuces and one species of wild lettuce—L. serriola, were also examined as a reference material using HPLC/DAD. The results have been discussed regarding our previous studies and the literature data available.

scholarly journals Volatile Constituents of Three Piper Species from Vietnam

2015 ◽  
Vol 10 (11) ◽  
pp. 1934578X1501001
Author(s):  
Le D. Hieu ◽  
Tran M. Hoi ◽  
Tran D. Thang ◽  
Isiaka A. Ogunwande
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Compositions ◽  
Flame Ionization Detection ◽  
Volatile Oils ◽  
Benzyl Benzoate ◽  
Volatile Constituents ◽  
Flame Ionization ◽  
Germacrene D ◽  
Leaf Oil

The chemical compositions of the essential oils obtained by hydrodistillation of three Piper plants grown in Vietnam are reported. The analysis was achieved by means of gas chromatography with flame ionization detection (GC-FID) and gas chromatography coupled with mass spectrometry (GC-MS). The main constituents of the leaf oil of Piper majusculum Blume were β-caryophyllene (20.7%), germacrene D (18.6%) and β-elemene (11.3%). The quantitatively significant compounds of the volatile oils of P. harmandii C. DC were sabinene (leaves, 14.5%; stems, 16.2%), benzyl benzoate (leaves, 20.0%; stems, 29.40%) and benzyl salicylate (leaves, 14.1%; stems, 24.3%). Also, α-cadinol (17.0%) was identified in large proportion in the leaf oil. However, sabinene (leaves, 17.9%; stems, 13.5%), benzyl benzoate (leaves, 20.5%; stems, 32.5%) and β-eudesmol (leaves, 13.8%; stems, 8.4%) were the main constituents of P. brevicaule C. DC. This is the first report on the volatile constituents of both P. harmandii and P. brevicaule.

scholarly journals Evaluation of ionic degradation and slot corrosion of metallic brackets by the action of different dentifrices

2013 ◽  
Vol 18 (1) ◽  
pp. 86-93
Author(s):  
Gustavo Antônio Martins Brandão ◽  
Rafael Menezes Simas ◽  
Leandro Moreira de Almeida ◽  
Juliana Melo da Silva ◽  
Marcelo de Castro Meneghim ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Artificial Saliva ◽  
Positive Control ◽  
Negative Control ◽  
Sem Analysis ◽  
Wilcoxon Test ◽  
Surface Polishing ◽  
Aluminium Ion ◽  
Negative Controls

OBJECTIVE: To evaluate the in vitro ionic degradation and slot base corrosion of metallic brackets subjected to brushing with dentifrices, through analysis of chemical composition by Energy Dispersive Spectroscopy (EDS) and qualitative analysis by Scanning Electron Microscopy (SEM). METHODS: Thirty eight brackets were selected and randomly divided into four experimental groups (n = 7). Two groups (n = 5) worked as positive and negative controls. Simulated orthodontic braces were assembled using 0.019 x 0.025-in stainless steel wires and elastomeric rings. The groups were divided according to surface treatment: G1 (Máxima Proteção Anticáries®); G2 (Total 12®); G3 (Sensitive®); G4 (Branqueador®); Positive control (artificial saliva) and Negative control (no treatment). Twenty eight brushing cycles were performed and evaluations were made before (T0) and after (T1) experiment. RESULTS: The Wilcoxon test showed no difference in ionic concentrations of titanium (Ti), chromium (Cr), iron (Fe) and nickel (Ni) between groups. G2 presented significant reduction (p < 0.05) in the concentration of aluminium ion (Al). Groups G3 and G4 presented significant increase (p < 0.05) in the concentration of aluminium ion. The SEM analysis showed increased characteristics indicative of corrosion on groups G2, G3 and G4. CONCLUSION: The EDS analysis revealed that control groups and G1 did not suffer alterations on the chemical composition. G2 presented degradation in the amount of Al ion. G3 and G4 suffered increase in the concentration of Al. The immersion in artificial saliva and the dentifrice Máxima Proteção Anticáries® did not alter the surface polishing. The dentifrices Total 12®, Sensitive® and Branqueador® altered the surface polishing.

Sign in / Sign up

Export Citation Format

Share Document