Journal of Essential Oil Bearing Plants
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2016
·
IF 0.313
Xin Chao Liu,Shao Liang Liu,Zhi Long Liu
In our screening program for new agrochemicals from wild plants and Chinese medicinal herbs, Teucrium quadrifarium aerial parts at flowering stage was found to possess strong insecticidal activity against booklice (Liposcelis bostrychophila). Water-distilled essential oil from T. quadrifarium aerial parts was analyzed by gas chromatography-mass spectrometry (GC-MS). Fourty-seven components comprising 97.2 % of the total oil were identified and the main components of the essential oil were germacrene D (8.8 %), linalool (8.2 %), camphene (7.8 %), β-caryophyllene (7.3 %), β-cadinene (6.8 %), 1,8-cineole (6.5 %), 4-terpineol (5.8 %), and α-terpineol (5.1 %). The essential oil of T. quadrifarium possessed contact toxicity against L. bostrychophila with a LC50 value of 95.1 μg/cm2. The oil also showed fumigant toxicity against L. bostrychophila with a LC50 value of 222.0 μg/l. These findings suggested that the essential oil of T. quadrifarium aerial parts has potential to be developed as new natural insecticides for the control of grain storage insects.
研究领域:
植物化学
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昆虫学
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农业科学
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DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
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2019
·Vol. 19
·期 7
·4147-4153
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IF 1.093
Wang Shuo,Zhang Wei,Chen Yanfang,Zhang Shilong,Wang Wei
Lavender fragrance loaded polyurea microparticles were successfully prepared via interfacial polymerization. The microcapsulated lavender essence was directly impregnated into the fabrics as an aromatic reagent. And the encapsulation efficiency measured was 75.68% when the core-wall
ratio (Mlavender: MHDI) was 2:1. Laser light particle size analyzer showed that the size of spherical nanocapsule varied in the range 2–20 μm. The release process of microcapsules conformed to pseudo-first order kinetics. And the release contents of main
lavender fragrance components involved D-limonene, cineole, linalool and propyl propionate from the cotton fabrics were accurately calculated. These aroma compounds of the cotton fabrics impregnated with microcapsulated lavender only lost less than 50% of their aroma after 12 weeks of deposition.
Gas chromatography/hydrogen flame ionization detection (GC-FID) indicated that aromatic fabrics treated with microcapsulated lavender exhibited a better sustained-release properties than that of fragrance emulsion.
研究领域:
材料科学
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纺织工程
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DOI
高影响因子
Food Bioscience
·
2024
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IF 4.8
Asif Ali Khan,Feng-Jie Cui,Muhammad Wajid Ullah,Abdul Qayum,Ibrahim Khalifa,Syed Asim Shah Bacha,Zheng-Zi Ying,Ismail Khan,Umar Zeb,Abdullah A. Alarfaj,Mohammad Javed Ansari,Yan Yang,Wei Jia,Wen Li
This study aimed to develop bioactive films based on curdlan (CD) and sodium alginate (SA) to enhance the shelf life of the Volvariella volvacea mushroom. A stable nanoemulsion of droplet size of 150.1 ± 5 nm was first formulated using 5% soy protein (Sp) and 10% lavender essential oil (LEO), achieved by ultrasound treatment for 10 min, resulting in small droplet sizes. In parallel, a CD-SA film was prepared by mixing them in a 1:1 ratio. The SpLEO nanoemulsion was then ex situ added to the CD-SA film at varying concentrations (4%, 6%, 8%, and 10%). The resulting bioactive film exhibited desirable properties, including water vapor permeability (1.15 ± 0.05 × 10 −10 g m −1 Pa −1 s −1 ), swelling rate (547%), and tensile strength (10.1 ± 1.3 MPa). Docking and structural analyses suggested that ultrasound treatment enhanced the intermolecular hydrogen bonding, creating a uniform and regular surface and reduced crystallinity. The CD-SA film with ultrasound-treated 8% SpLEO nanoemulsion [i.e., (CD-SA/SpLEO-8)US] showed antibacterial activity against Escherichia coli and Staphylococcus aureus and extended the freshness of straw mushrooms prevention of spoilage during storage. Additionally, the film reduced respiration rate (975 mg CO₂/kg/h at 96 h) and ethylene production (160 ng/kg/s by 96 h) while effectively inhibiting straw mushroom autolysis. This led to a reduction in browning (2.91), total soluble solids (7.5%), weight loss (13.9%), and polyphenol oxidase activity (0.08 ΔOD 420 /min⋅g), thereby extending the shelf life of the mushrooms to 96 h. These findings highlight the potential of incorporating different molecules using ultrasound treatment to develop innovative edible films for food preservation.
研究领域:
食品科学
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微生物学
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材料科学
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DOI
高影响因子
BMC PLANT BIOLOGY
·
2023
·Vol. 23
·期 1
·1-16
·
IF 5.3
Zhang Yanan,Wang Di,Li Hui,Bai Hongtong,Sun Meiyu,Shi Lei
Background Lavender (genus Lavandula, family Lamiaceae) is an aromatic plant widely grown as an ornamental plant. The chemical composition of lavender is characterized by monoterpenoids, sesquiterpenoids, and other compounds, which are primarily synthesized and stored in epidermal secretory structures called glandular trichomes (GTs). Volatile organic compounds (VOCs) are responsible for the aroma characteristics of plant oil that drive consumer preference. Aroma is usually regarded as a characteristic trait for the classification of aromatic plants. Interestingly, VOCs are synthesized and stored in GTs. Lamiaceae species such as purple perilla, peppermint, basil, thyme, and oregano usually possess two types of GTs: peltate glandular trichomes (PGTs) and capitate glandular trichomes (CGTs). But the development process of PGTs in lavender has been reported in only a few studies to date.Results In this study, we identified and quantified the VOCs in four lavender cultivars by headspace-solid phase micro extraction-gas chromatography mass spectrometry (HS–SPME–GC–MS). A total of 66 VOCs were identified in these four cultivars, the most prominent of which were linalyl acetate and linalool, and flowers were the main site of accumulation of these VOCs. Here, we examined the developmental process of PGTs, including the formation of their base, body, and apex. The apex cells contained secretory cavities, which produced VOCs. Based on the reference genome sequence of the lavender cultivar ‘Jingxun 2’, several R2R3-MYB subfamily genes related to GT formation were identified. These results will guide the engineering of GTs and molecular breeding of lavender for improving the VOC content.Conclusion sIn this study, we identified the VOCs in four lavender cultivars. We analyzed the formation of GTs, and compared the number and diameter size of PGTs among four lavender cultivars. Additionally, we identified four candidate genes belonging to the R2R3-MYB family.
研究领域:
植物学
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分子生物学
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芳香植物研究
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jiayi He,Yibin Chen,Jiyuan Wang,Sangrong Chen,Xingzi Lan,Maolin Liu,Xiaojie Chen,Weicheng Ou,Han Wang
In this study, LO (lavender essential oil) and PCL (polycaprolactone)-based nanofibrous membranes were successfully prepared using electrospinning technology. Due to the large specific surface area of the coaxial electrospinning nanofibers, the composite fiber membrane synthesized displays outstanding performance in the loading and release of LO. The study examines three common essential oils: Lavender Flower Oil (LFO), Lavandin Hybrida Oil (LHO), and Lavender Spike Oil (LSO). The results showed that this nanofiber membrane can effectively encapsulate LO, achieve long-term release, and exhibit long-lasting aroma and antibacterial effects. In terms of air filtration performance, the LHO/PCL membrane with an inner DMF (dimethylformamide) concentration of 5% has a significant filtration effect on PM2.5. In addition, in vitro antibacterial experiments show that LO/PCL nanofiber membranes have good antibacterial properties against Escherichia coli and Staphylococcus aureus , especially the LHO/PCL and LSO/PCL membranes. In summary, the LHO/PCL nanofiber membrane with 5% DMF demonstrated high filtration efficiency (quality factors is 0.13 Pa −1 ), sustained aroma retention for over 7 days, and exhibited antimicrobial properties, effectively inhibiting bacterial growth by 99% in testing. Therefore, the LO/PCL nanofiber membrane shows good application potential as an essential oil carrier in air filtration systems.
研究领域:
材料科学
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生物学
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环境科学
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DOI
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
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植物学
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产品关联
DOI
高影响因子
CHEMISTRY & BIODIVERSITY
·
2025
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IF 2.5
Bin Wu,Yuyang Chai,Junlong Wang,Xuehui Yu,Wei Feng,Wenpan Shi,Yonggang Lin
Chemical modifications can impart distinct physicochemical properties and biological activities to polysaccharides. In this study, Lavandula angustifolia polysaccharide (LAP) was purified through a series of processes including decolorization, deproteinization, freeze-drying, and column chromatography using DEAE-750 cellulose and Sephadex G-200, yielding a major homogeneous polysaccharide designated as LAP. The LAP was subsequently modified via acetylation method, producing a series of acetylated derivatives with varying degrees of substitution, referred to as LAP-1, LAP-2 and LAP-3, respectively. The characterization of these polysaccharides was conducted using various methodologies, including viscosity, solubility, molecular weight (Mw), ultraviolet (UV), infrared (IR), x-ray diffraction (XRD), Congo red, thermogravimetric (TG), differential thermogravimetry (DTG), and scanning electron microscopy (SEM). The LAP and its derivatives were identified as heteropolysaccharides composed of varying molar ratios of fucose, rhamnose, mannose and galactose, with Mws of 27.32, 19.74, 17.52, and 21.43 kDa, respectively. The acetylation modifications were found to influence the viscosity, solubility, surface morphology and thermal properties of LAP and its derivatives, and notably, these effects were observed to be beneficial. Furthermore, antioxidant and hypoglycemic activity assays demonstrated that acetylation significantly enhanced the biological activities of the polysaccharides, exhibiting a positive correlation with the degree of substitution. These findings suggest that distinct functional and bioactive polysaccharides can be developed through acetylation modification. Graphical
研究领域:
碳水化合物化学
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药物化学
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药理学
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生物化学
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食品科学
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高分子科学
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产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2024
·
IF 6.5
Di Zhao,Zhibin Li,Qunfeng Li,Pingli Sun,Yanxiang Kang,Jiayi Xia,Bingjie Lv,Zuobing Xiao,Yunwei Niu
The preparation of aromatic cotton fabrics (ACF) is gradually gaining widespread attention, but the use of cross-linking agents is unsuitable for the current textile industry. In this study, inspired by mussels, we used dopamine methacrylamide (DMA) as the wall material and lavender essential oil (LO) as the core material to prepare a novel biomimetic adhesive nanocapsule (PDMA NCs) through the emulsion polymerization method. PDMA NCs exhibit pH-responsive properties, sustained adhesive properties, and excellent biocompatibility. During impregnation, PDMA NCs are connected to cotton fabrics (CF) through hydrogen bonds. The innovative introduction of the soft monomer n-butyl acrylate (BA) and Fe 3+ ions synergistically enhances the adhesive property of PDMA NCs. Washing resistance experiments show that the CF obtained from impregnation (PDMA NCs/BA/Fe 3+ @CF) exhibited an LO retention rate of 40.08 % after 25 washing cycles. Since the adhesion mechanism of this strategy is based on dual dynamic bonds (hydrogen bonds and Fe 3+ -catechol coordination bonds), the development of this technology is expected to promote the diversified development of functional textiles, increase the added value of textiles, and provide new approaches for the preparation of smart textiles.
研究领域:
纺织科学
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材料科学
·
生物仿生学
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DOI
高影响因子
Pharmaceuticals
·
2024
·Vol. 17
·期 9
·1161
·
IF 4.3
Luge Chen,Yingwei Liu,Dawei Xu,Na Zhang,Yong Chen,Jin Yang,Lijuan Sun
With the increasing prevalence of insomnia-related diseases, the effective treatment of insomnia has become an important health research topic. Lavender (Lavandula angustifoliaMill.) essential oil (LEO) is a commonly used medicine for the treatment of insomnia and neurological disorders. However, neither the active components nor its sedative–hypnotic mechanism have been fully discovered. This study aimed to screen the main active terpenes and discover the possible mechanism of LEO through network pharmacology in the treatment of insomnia-related diseases, as well as to verify our hypothesis in insomnia mice. The results showed that, in LEO’s 15 potential active ingredients, beta-myrcene had strong sedative–hypnotic effects through the serotonergic synaptic pathway according to the network pharmacological prediction. Further, PCPA(DL-4-chlorophenylalanine)-induced insomnia mice were treated with beta-myrcene for one day or seven days. The quiet state of insomnia mice was increased effectively, and the hypnotic effect was enhanced by anaobarbital sodium by prolonging sleep duration, decreasing sleep latency, and increasing the rate of falling asleep. Beta-myrcene reduced the damage to hypothalamic neuron cells induced by PCPA and increased neurotransmitter levels of GABA, 5-HT, and Glu in the serum and hypothalamus of insomnia mice. Meanwhile, beta-myrcene exerted an improvement in insomnia by upregulating relevant genes and protein expression in the serotonergic synaptic pathway. These results support the merit of the sedative–hypnotic activity of LEO. Beta-myrcene, a terpene in LEO, may be the main source of its sedative–hypnotic properties. It may serve as a good potential compound in future clinical studies on coping with insomnia.
研究领域:
药理学
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神经科学
·
医学
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DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
Kunlin Chen,Changyue Xu,Jianlin Zhou,Ruoyi Zhao,Qiang Gao,Chaoxia Wang
The synthesis of multifunctional microcapsules using natural polymers has contributed to a broad range of practical applications on fabric coatings. This paper presents a facile and environment-friendly approach for waterborne multifunctional fabric coatings by using cellulose/silica hybrid microcapsules. In this method, lavender fragrance oil-loaded cellulose/silica hybrid microcapsules were one-step synthesized via emulsion solvent diffusion. This microcapsule is core-shell structure with UV absorbers and methacrylic acid grafted silica in the shell and then added into the waterborne polysiloxane resins to form multifunctional fabric coatings. The as-obtained fabric coatings not only exhibited controlled lavender fragrance oil-releasing performance, and it can keep above 30 % fragrance after ninety days due to the slow releasing of lavender fragrance oil in the capsules, but also showed excellent UV resistant property with 159 UPF value.
研究领域:
材料科学
·
纺织工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ETHNOPHARMACOLOGY
·
2019
·
IF 3.414
Bojun Chen,Jijun Li,Yuhuan Xie,Xi Ming,Gang Li,Jinjin Wang,Meng Li,Xiaohong Li,Lei Xiong
Ethnopharmacological relevance Cang-ai volatile oil (CAVO) is a traditional Chinese medicine (TCM) inhalational preparation for the treatment of some depressive and emotive disorders. Aim of the study This research aimed to evaluate the efficiency and possible mechanism of intranasal CAVO administration on depression in chronic unpredictable mild stress (CUMS)-induced rats compared to lavender volatile oil (LVO) treatment after CUMS exposure and bilateral olfactory bulb impairment (OBI) in rats. Materials and methods Forty depressive-like model rats induced by CUMS were evaluated by the forced swim test (FST), open field test (OFT), and sucrose preference test (SPT). The model rats were divided into five groups: CUMS (n = 8), CAVOh + CUMS (n = 8), CAVOl + CUMS (n = 8), LVO + CUMS (n = 8), and OBI + CAVO + CUMS (n = 8). The CUMS-induced rats were treated for a period of 4 weeks. The other healthy rats were regarded as the control (CTR, n = 8) subjects. The levels of serotonin (5-HT) and dopamine (DA) and their respective metabolites homovanillic acid (HVA) and 5-hydroxyindol acetic acid (5-HIAA) were measured in brain tissue homogenates of CUMS-induced rats using enzyme-linked immunosorbent assay (ELISA). Results CAVO ameliorated depressive-like behaviors (p < 0.05 ). The levels of DA in the CUMS group were lower than those in the CTR and CAVOh groups (** p < 0.01 and * p < 0.05 ). The levels of HVA were lower in the CUMS group than in the CTR, LVO, OBI + CAVOh and CAVOh groups (** p < 0.01 and * p < 0.05 ) and lower in the OBI + CAVOh group than in the CAVOh group (** p < 0.01 ). The levels of 5-HT in the CUMS group were lower than those in the CTR and CAVOh groups (** p < 0.01 ). The levels of 5-HIAA were lower in the CUMS and OBI + CAVOh groups than in the CTR, LVO and CAVOh groups (** p < 0.01 ). Conclusions CAVO can improve depressive-like behaviors concomitant with the regulation of DA and 5-HT metabolism in the brains of CUMS-induced rats.
研究领域:
药理学
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神经科学
·
中医
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DOI
PubMed
高影响因子
ANALYTICAL BIOCHEMISTRY
·
2021
·
IF 3.365
Xin Liu,Jihong Fu,Lili Wang,Caijuan Wang
A novel microwave-assisted (MA) headspace solid-phase extraction (HS-SPE) based on polydimethylsiloxane (PDMS)/ZIF-8@GO sponge was developed for the simultaneous extraction and determination of essential oil constituents in lavender. The PDMS/ZIF-8@GO sponge with a high surface area and excellent adsorption capacity was successfully applied in the HS-SPE process. Microwave-assisted coupled with PDMS/ZIF-8@GO sponge headspace solid-phase extraction followed by GC-MS was proposed. Different experimental parameters were investigated. The optimal conditions were found to be as follows: 2:1 as the quality ratio of ZIF-8 to GO , ZIF-8@GO dosage of 30 mg, microwave power of 600 W, extraction time of 10 min and desorption solvent of n -hexane. This method was successfully applied to the analysis of 11 samples of lavender in different varieties. A total of 52 compounds were identified by the proposed method. A good linearity was observed from 14 to 800 ng with a correlation coefficient (R 2 ) value of >0.99. Multivariate statistical analysis was used to establish the relationship between the varieties and the volatile components for further discriminant analysis. These results demonstrated that the MA-PDMS/ZIF-8@GO is an efficient, sensitive and small sample consumption method for the determination of the essential oil in dried plant materials.
研究领域:
分析化学
·
精油
·
材料科学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）