MOLECULES
·
2013
·Vol. 18
·期 5
·5684-5696
·
IF 2.428
Xin Chao Liu,Li Gang Zhou,Zhi Long Liu,Shu Shan Du
The aim of this research was to determine the chemical composition of the essential oil ofAcorus calamusrhizomes, its insecticidal activity against the booklouse, (Liposcelis bostrychophila) and to isolate any insecticidal constituents from the essential oil. The essential oil ofA. calamusrhizomes was obtained by hydrodistillation and analyzed by GC-FID and GC-MS. A total of 32 components of the essential oil ofA. calamusrhizomes was identified and the principal compounds in the essential oil were determined to be α-asarone (50.09%), (E)-methylisoeugenol (14.01%), and methyleugenol (8.59%), followed by β-asarone (3.51%), α-cedrene (3.09%) and camphor (2.42%). Based on bioactivity-guided fractionation, the three active constituents were isolated from the essential oil and identified as methyleugenol, (E)-methylisoeugenol and α-asarone. The essential oil exhibited contact toxicity againstL. bostrychophilawith an LD50value of 100.21 µg/cm2while three constituent compounds, α-asarone, methyleugenol, and (E)-methylisoeugenol had LD50values of 125.73 µg/cm2, 103.22 µg/cm2and 55.32 µg/cm2, respectively. Methyleugenol and (E)-methylisoeugenol possessed fumigant toxicity againstL. bostrychophilaadults with LC50values of 92.21 μg/L air and 143.43 μg/L air, respectively, while the crude essential oil showed an LC50value of 392.13 μg/L air. The results indicate that the essential oil ofA. calamusrhizomes and its constituent compounds have potential for development into natural fumigants/insecticides for control of the booklice.Keywords:Acorus calamus;Liposcelis bostrychophila;fumigant;contact toxicity;essential oil composition
研究领域:
植物学
·
昆虫学
·
天然产物化学
✓ 已验证
DOI
高影响因子
Journal of Essential Oil Bearing Plants
·
2019
·
IF 0.688
Fengying Qiu,Haikuan Yang,Ting Zhang,Xindong Wang,Shifang Wen,Xiaohua Su
Cinnamomum porrectum (Roxb.) Kosterm is an important plant which produces natural essential oil. In this study, essential oil was hydro-distilled from leaves of five different samples of C. porrectum which were randomly selected in a C. porrectum forest in Guangdong Province of China, and identified by Gas Chromatography Mass Spectrometry (GC/MS). The results revealed that the average yield of essential oil was 1.12 % (v/w). A total of 65 compounds were identified from five samples, and 31 of which were reported for the first time in leaf essential oil of C. porrectum. High contents of monoterpenes and sesquiterpenes were found in the leaves of C. porrectum. The main components of essential oil were linalool (79.4 %), elemol (38.1 %), eucalyptol (35.6 %), β-caryophyllene (34.6 %), camphor (33.2 %), α-eudesmol (26.5 %), citral (23.5 %) and L-α- Terpineol (22.0 %). Different types of high-value compounds were found to be present in the five selected samples of C. porrectum oil, and the difference of essential oil components in individual leaves was remarkable. The various breeding techniques can be utilization based on different chemical types of leaf essential oil to exploit the plant to its full potential.
研究领域:
植物学
·
化学生态学
·
药用植物研究
✓ 已验证
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2021
·
IF 5.645
Richard Osae,Maurice Tibiru Apaliya,Emmanuel Kwaw,Michelle T.R. Chisepo,Otu Phyllis Naa Yarley,Eric Aforo Antiri,Raphael N. Alolga
This work aimed to determine the effects of five drying methods on the quality and essential oil composition of Ghanaian ginger. To this end, slices of fresh ginger rhizomes were dried using the following dryers; relative humidity convective (RHC) dryer, freeze (F) dryer, infrared (IR) dryer, microwave (MC) dryer and pulsed vacuum (PV) dryer. The antioxidant activities, total phenolic content (TPC), sensory characteristics and moisture content of the dried slices were assessed. The effects of the various drying techniques on the chemical composition of the essential oil components were determined using gas chromatography-mass spectrometry (GC–MS). With respect to the sensory attributes of the various dried ginger samples, the RHC-dried samples attained the highest scores for aroma, flavor and general acceptability while the F-dried samples scored the highest marks for appearance (i.e., colour). The RHC-dried samples had the lowest moisture content (5.45 %) followed by the F-dried (6.36 %), IR-dried (8.06 %), MC-dried (9.15 %) and PV-dried (10.07 %) samples. The F-dried samples retained the highest TPC (110.36 mg Gallic acid equivalent (GAE)/g db) and exhibited the highest antioxidant activities as evidenced by the outcomes of 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and ferric reducing antioxidant power capacity (FRAP) tests. The chemical profiles of the essential oil extracted from the various dried ginger samples were distinct and unique. The essential oil obtained from the F-dried samples was observed to have the highest compounds (24). The number of compounds identified in the oil extracted from the other dried samples were : RHC drying, 23; IR drying, 16; MC drying, 15; PV drying, 3. In general, the samples subjected to F and RHC drying gave the best outcomes for all the quality parameters assessed and are therefore recommended for large-scale industrial application.
研究领域:
食品科学
·
植物化学
✓ 已验证
DOI
高影响因子
JOURNAL OF FOOD PROTECTION
·
2015
·
IF 1.849
Xin Chao Liu,Zhi Long Liu
Water-distilled essential oil from Illicium henryi (Illiciaceae) root bark was analyzed by gas chromatography–mass spectrometry. Thirty-four compounds, accounting for 97.86% of the total oil, were identified. The main components of the essential oil of I. henryi root bark were safrole (46.12%), myristicin (20.39%), and 1,8-cineole (6.17%), followed by a-cadinol (3.784%) and linalool (3.22%). The essential oil had higher levels of phenylpropanoids (66.89%) than of monoterpenoids (14.83%) and sesquiternoids (16.14%). Three constituents were isolated from the oil based on bioactivity fractionation. The essential oil possessed fumigant toxicity against booklice ( Liposcelis bostrychophila ), with a 50% lethal concentration (LC 50 ) of 380.39 mg/liter of air, while the two isolated constituents myristicin and safrole had LC 50 s of 121.95 and 322.54 μg/liter, respectively. Another constituent, 1,8-cineole, showed weaker toxicity, with an LC 50 of 1,120.43 μg/liter. The essential oil also exhibited contact toxicity against L. bostrychophila, with an LC 50 of 96.83 μg/cm 2 . Myristicin (LC 50 , 18.74 μg/cm 2 ) and safrole (LC 50 , 69.28 μg/cm 2 ) exhibited stronger acute toxicity than 1,8-cineole (LC 50 , 1,049.41 μg/cm 2 ) against the booklice. The results indicated that the essential oil and its constituent compounds have potential for development into natural insecticides for control of psocids in stored grains.
研究领域:
植物化学
·
昆虫学
·
农药科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Essential Oil Bearing Plants
·
2022
·
IF 1.971
Chunlian Li,Xiaobin Lin,Qiuyang Cai,Weicheng Zhang,Xianyi Wu,Zekai Tan,Lewen Yao,Shiyuan Huang,Yanghe Yuan,Lanyue Zhang
The perennial herb Alpinia oxyphylla Miq. (Zingiberaceae) is an important traditional medicinal plant in China. The present study evaluated the chemical composition of A. oxyphylla essential oil (AOEO) using GC-MS. The AOEO contained 55 compounds, including nootkatone (20.12%), valencene (12.26%), and ethyl-p-methoxycinnamate (5.00%). Previous studies have shown that AOEO possesses significant antioxidant and antibacterial activities. However, the anti-inflammatory effect of AOEO on tissue plasminogen activator (TPA)-induced ear edema is yet to be reported. In this study, TPA-induced ear edema was used to investigate the anti-inflammatory activity of AOEO. Hematoxylin and eosin staining of mouse tissue sections indicated that AOEO reduced the degree of edema, and immunohistochemistry experiments revealed that AOEO inhibited the expression of tumor necrosis factors, such as cyclooxygenase 2 (COX-2), interleukin-6 (IL-6), and nuclear factor-kappa B (NF-κB). A. oxyphylla is a commonly used traditional Chinese medicine with good biological activity. Analysis of the species potential geographical distribution and diversity indicated that the species can be rationally protected and exploited. Based on the chemical composition and biological activity of AOEO, further research and development should effectively promote the development of medicine, food, and cosmetics industries. The potential distribution of A. oxyphylla under current climatic conditions was predicted using DIVA-GIS and geographic information from herbarium specimens and other documents. The species predicted distribution spanned more than 12 provinces in China and was the most extensive in Hainan. Under current climatic conditions, A. oxyphylla is suitable for growing and expanding its population in the warm, humid regions of southern China.
研究领域:
植物学
·
药理学
·
生物化学
✓ 已验证
DOI
高影响因子
FOOD CONTROL
·
2014
·
IF 2.819
Ren Li,Hua-Bin Hu,Xiu-Fen Li,Ping Zhang,You-Kai Xu,Jing-Jing Yang,Yuan-Fei Wang
This study reports the essential oils chemical composition and antioxidant and antimicrobial potentials of the leaves of Phrynium pubinerve Blume and Thysanolaena latifolia (Roxb. ex Hornem.) Honda, which are used as natural packaging materials by ethnic groups in Xishuangbanna, southwest China. GC–MS analysis identified 46 and 21 components, representing 88.6% and 93.4% of the essential oils of P. pubinerve and T. latifolia , respectively. The major constituents for P . pubinerve were (Z)-3-hexen-1-ol (17.31%), (E)-2-hexenal (9.01%) and 1-hexanol (8.61%). The major constituents for T . latifolia were (Z)-3-hexen-1-ol (28.79%), phytol (12.30) and (E)-β-ionone (9.54%). Both the essential oils and ethanol extracts showed antioxidant activity in DPPH test (IC 50 values = 192.47–706.07 μg/ml), ABTS assay (IC 50 values = 35.54–134.97 μg/ml) and FRAP assays . The essential oils showed considerable antimicrobial activity against pathogenic bacteria and spoilage organisms , with MIC and MBC values in the ranges of 64–3072 μg/ml and 64–4096 μg/ml, respectively. The bioactivities of these two plant species validate the traditional use of these two plants, suggesting that both could be new sources of natural antioxidant and antimicrobial agents for the packaging, medical and functional food industries.
研究领域:
植物化学
·
食品科学
·
药用植物学
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2021
·Vol. 11
·期 1
·1-10
·
IF 4.38
Ma Yinzheng,Wang Yuanxiao,Zhou Xia,Yang Heng,Zhang Huixin,Chen Wenhan,Zhang Haiying,Zhang Yunxia,He Xiaowen
Clausena lansium (Lour.) Skeels seeds have been shown to have diverse beneficial medical value due to their unique active components. This study analysed the composition of essential oils (EOs) of C. lansium seeds and investigated their potential antifungal effects against Candida strains . A total of forty-six components were identified in all samples by gas chromatography-mass spectrometry (GC–MS). The main components were sabinene, β -phellandrene and 4-terpineol. Thirteen EOs of C. lansium seeds were classified into three clusters based on their components. Cluster analysis showed that the difference between the tropics and subtropics was the greatest. These EOs and the three main chemicals showed different antifungal activities against five Candida species ( C. albicans , C. tropicalis , C. glabrata , C. krusei and C. parapsilosis ). The antifungal activity against C. glabrata and C. krusei was higher than that against other Candida strains. EOs of C. lansium seeds displayed noteworthy antifungal activity against both sensitive and fluconazole-resistant strains, with inhibition zone diameters in the range of 9.4–23.4 mm. Comprehensive analysis illustrated the importance of sabinene, β -phellandrene and 4-terpineol to antifungal activity, and there may be some synergistic effects with other components. These results represent the first report about the correlation between the chemical composition of EOs of C. lansium seeds and antifungal activity. Taken together, the results obtained provide scientific evidence for the traditional use of C. lansium seeds waste.
研究领域:
植物化学
·
微生物学
·
药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2013
·Vol. 18
·期 9
·10733-10746
·
IF 2.428
Xin Chao Liu,Yin Ping Li,He Qin Li,Zhi Wei Deng,Ligang Zhou,Zhi Long Liu,Shu Shan Du
The aim of this research was to determine the chemical composition and insecticidal and repellent activity of the essential oil ofArtemisia rupestrisL. aerial parts against the bookliceLiposcelis bostrychophilaBadonnel and isolation of insecticidal and repellent constituents from the essential oil. The essential oil ofA. rupestriswas obtained by hydrodistillation and analyzed by GC-MS. A total of 30 components of the essential oil ofA. rupestriswas identified and the principal compounds in the essential oil were α-terpinyl acetate (37.18%), spathulenol (10.65%), α-terpineol (10.09%), and linalool (7.56%), followed by 4-terpineol (3.92%) and patchoulol (3.05%). Based on bioactivity-guided fractionation, the four active constituents were isolated from the essential oil and identified as α-terpineol, α-terpinyl acetate, 4-terpineol and linalool. The essential oil ofA. rupestrisexhibited contact toxicity againstL. bostrychophilawith LD50value of 414.48 µg/cm2. α-Terpinyl acetate (LD50= 92.59 µg/cm2) exhibited stronger contact toxicity against booklice than α-terpineol (LD50= 140.30 µg/cm2), 4-terpineol (LD50= 211.35 µg/cm2), and linalool (LD50= 393.16 µg/cm2). The essential oil ofA. rupestris(LC50= 6.67 mg/L air) also possessed fumigant toxicity againstL. bostrychophilawhile the four constituents, 4-terpineol, α-terpineol, α-terpinyl acetate and linalool had LC50values of 0.34, 1.12, 1.26 and 1.96 mg/L air, respectively. α-Terpinol and α-terpinyl acetate showed strong repellency againstL. bostrychophila, while linalool and 4-terpinol exhibited weak repellency. The results indicate that the essential oil ofA. rupestrisaerial parts and its constituent compounds have potential for development into natural insecticides or fumigants as well as repellents for control of insects in stored grains.Keywords:Liposcelis bostrychophila;Artemisia rupestris;contact toxicity;fumigant toxicity;repellency;essential oil composition
研究领域:
昆虫学
·
植物化学
·
害虫防治
✓ 已验证
DOI
高影响因子
MOLECULES
·
2012
·Vol. 17
·期 10
·12049-12060
·
IF 2.386
Zhi Long Liu,Ligang Zhou,Shu Shan Du
The aim of this research was to determine the chemical composition and insecticidal activity of the essential oil ofCurcuma wenyujinY.H. Chen et C. Ling rhizomes against the booklouseLiposcelisbostrychophilaBadonnel and to isolate any insecticidal constituents from the essential oil. The essential oil ofC. wenyujinrhizomes was obtained by hydrodistillation and analyzed by GC-MS. A total of 43 components of the essential oil were identified and the principal compounds in the essential oil were 1,8-cineole (15.26%), camphor (10.12%), germacrone (6.86%), β-elemene (6.33%), curzerene (6.70%), and β-elemenone (5.23%). followed by curzerenone (4.52%), curdione (4.45%) and linalool (4.43%). Based on bioactivity-guided fractionation, the two main active constituents were isolated from the essential oil and identified as 1,8-cineole and camphor. The essential oil ofC. wenyujinrhizomes exhibited contact toxicity againstL. bostrychophilawith an LD50value of 208.85 µg/cm2. Camphor (LD50= 207.26 µg/cm2) exhibited stronger contact toxicity than 1,8-cineole (LD50= 1048.75 µg/cm2) against booklouse. The essential oil ofC. wenyujin(LC50= 2.76 mg/L air) also possessed fumigant toxicity againstL. bostrychophila, while the two constituents, camphor and 1,8-cineole had LC50values of 1.03 mg/L air and 1.13 mg/L air, respectively. The results indicate that the essential oil ofC. wenyujinrhizomes and its constituent compounds have potential for development as natural insecticides or fumigants for control of insects in stored grains.Keywords:Liposcelisbostrychophila;Curcuma wenyujin;contact toxicity;fumigant;essential oil composition;1,8-cineole;camphor
研究领域:
植物学
·
昆虫学
·
天然产物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Shuzhen Yang,Min He,Dongmei Li,John Shi,Litao Peng,Liu Jinjing
The antifungal activity of essential oils is closely related to their components and contents. The study aimed to explore the structural activity of essential oil (EO) components against Diaporthe fusicola and modes of action. The results showed most of the tested compounds showed inhibitory effects on the growth of D. fusicola and carvacrol was the strongest one with half maximal effective concentration (EC 50 ) of 11.21 μL/L. The chemical structures of the tested compounds had great influences on their antifungal activity, in which the presence of CHO group, C C group or Ar-OH group in any EO components significantly increase the antifungal potency, but the increment of carbon chain length of saturated fatty aldehyde decreased antifungal activity. In order to analyze the antifungal action mode of EO components, the correlations between EC 50 and oxidation-reduction potential (ORP), cell-membrane permeability and respiration inhibition of the tested compounds were further evaluated. The results showed antifungal activities of these EO components seemed to be accomplished by increase of cell membrane permeability and inhibition of the respiration of D. fusicola . The levels of increased membrane permeability, inhibited respiration and ORP of chemicals were all significantly correlated with EC 50 . This results indicated the action mode of these EO components against D. fusicola may be associated with the increment of cell membrane permeability and respiration inhibition via disrupting redox homeostasis in fungal cells, and oxidation-reduction property could be used as a secondary indicator for screening the antifungal agent from EO components.
研究领域:
植物学
·
微生物学
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
ULTRASONICS SONOCHEMISTRY
·
2020
·
IF 6.513
Subramanian Siva,Changzhu Li,Haiying Cui,Venkatasamy Meenatchi,Lin Lin
Essential oils derived from medicinal plants are prosperous sources of active components having high biological potential. Cuminaldehye and isoeugenol, are hydrophobic essential oil components (EOC), are showing drastic limitations in their applications by low water solubility and the respective volatility. Methyl- β -cyclodextrin inclusion complexes (M β CD-ICs) were prepared in aqueous solution and in solid state with the EOC via the ultrasonication method, an energy saving, high efficiency and eco-friend technique, aim to extend their aqueous solubility and biological properties. UV–Vis absorption, fluorescence, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), proton nuclear magnetic resonance ( 1 H NMR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (PXRD) and computational simulations confirmed the formation of EOC/M β CD-ICs. Result of solubility studies proved the enhanced solubilization of EOC in the presence of M β CD in aqueous and double reciprocal profiles substantiated the guest/host stoichiometry of 1:1. TGA and DSC studies indicated the improved stability of EOC in M β CD-ICs. The efficiency of ICs in terms of the antioxidant activity was verified and the IC displayed higher antioxidant activity compared to that of free EOC, as determined by free radical scavenging assay. Finally, the antibacterial effect of EOC/M β CD-ICs against gram-positive Staphylococcus aureus and gram-negative Escherichia coli bacteria was demonstrated. Overall results not only revealed the potential of M β CD on the bioavailability, solubility and stability, but also that the intensification caused by the IC may be greater that the antioxidant and antibacterial effects of the selected EOC for this study.
研究领域:
药物化学
·
食品科学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Analytical Methods
·
2019
·Vol. 11
·期 11
·1541-1550
·
IF 2.378
Ping Chen,Bing Liu,Xin Liu,Jihong Fu
In this research, a novel method based on ultrasound-assisted extraction and dispersive liquid–liquid microextraction (UAE-DLLME) coupled with gas chromatography-mass spectrometry (GC-MS) has been successfully developed for the determination of essential oil constituents in lavender. The effective parameters of UAE-DLLME, including the type of extraction solvent, type and volume of preconcentration solvent, type and volume of disperser solvent, extraction temperature, and extraction time, were studied and optimized in detail. The optimal analytical conditions were as follows: 2 mL 50% ethanol as the extraction solvent, 150 μL methanol as the disperser solvent, 40 μL CCl4 as the preconcentration solvent, an extraction time of 20 min and an extraction temperature of 50 °C. Under the optimum conditions, a total of 13 samples of three varieties of lavender were analyzed and 64 compounds were identified. The precision of UAE-DLLME-GC-MS was evaluated and the relative standard deviation (RSD) was below 9% (n = 5). Good linearity with correlation coefficients of >0.9982 was obtained; limits of detection ranging from 1.75 to 7.50 ng indicated high sensitivity. Principal component analysis (PCA) was used to distinguish different varieties of lavender. This is the first application of UAE-DLLME for the analysis of essential oil constituents in lavender. The results showed that UAE-DLLME-GC-MS is a fast, sensitive, simple and small sample consumption method for the determination of essential oils in plant materials.
研究领域:
分析化学
·
植物学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）