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Junliang Xin, Baifei Huang
The objectives of this study were to identify genotypic differences in the uptake and translocation of boron (B) in vetiver (Chrysopogon zizanioides L.), a promising species in B phytoremediation, and to determine the efficiency of vetiver floating island system in B phytoremediation. Changes in plant biomass and B uptake and translocation were determined in two vetiver genotypes, Sierra and Sunshine, cultured hydroponically in a nutrient solution and exposed to six different B concentrations for 7 d and 14 d...
July 3, 2018: International Journal of Phytoremediation
Monika Dhote, Anil Kumar, Anjana Jajoo, Asha Juwarkar
A 90 days greenhouse experiment was conducted for evaluation of soil microbial diversity in different treatments of rhizospheric and nonrhizospheric oil sludge contaminated soil. Various pot treatments (T1-T5) were as follows: 2% oil sludge contaminated soil was considered as control (T1); augmentation of control with preadapted microbial consortium was T2; addition of Vetiver zizanioide to control was T3; bioaugmentation of control along with V. zizanioide was T4; and bioaugmentation with V. zizanioide and bulking agent was T5...
July 3, 2018: International Journal of Phytoremediation
Mohanapriya Jayapal, Hema Jagadeesan, Manojkumar Shanmugam, Perinba Danisha J, Shobana Murugesan
The presence of unused dyes and dye degradation intermediates in the textile industry wastewaters is the major challenge in its treatment. A wide range of treatments including various physicochemical processes are used for this wastewater. Incomplete dye degradation results in hazardous colorless aromatic amine intermediates that are teratogenic in nature. A synergistic plant-microbe system operated in a sequential anaerobic-aerobic mode was evaluated for the complete degradation of a model azo dye methyl red under laboratory conditions...
May 4, 2018: Journal of Hazardous Materials
Edgard Gnansounou, Jegannathan Kenthorai Raman
Among the renewables, non-food and wastelands based biofuels are essential for the transport sector to achieve country's climate mitigation targets. With the growing interest in biorefineries, setting policy requirements for other coproducts along with biofuels is necessary to improve the products portfolio of biorefinery, increase the bioproducts perception by the consumers and push the technology forward. Towards this context, Claiming-Based allocation models were used in comparative life cycle assessment of multiple products from wheat straw biorefinery and vetiver biorefinery...
April 24, 2018: Bioresource Technology
A Orchard, S F van Vuuren, A Viljoen, Guy Kamatou
OBJECTIVE: The study investigated the efficacy of commercial essential oil combinations against the two pathogens responsible for acne with the aim to identify synergy and favourable oils to possibly use in a blend. METHODS AND MATERIALS: Antimicrobial activity was assessed using the minimum inhibitory concentration (MIC) assay against Staphylococcus epidermidis (ATCC 2223) and Propionibacterium acnes (ATCC 11827), and the fractional inhibitory concentration index (ΣFIC) was calculated...
March 24, 2018: International Journal of Cosmetic Science
Majda Khalil Suleiman, Narayana Ramachandra Bhat, Sheena Jacob, Meali Al-Burais
Plant physiological and morphological attributes should be critically evaluated for selecting any species for landscaping projects. The selection of a species should be based on the evaluation of its adaptability, noninvasiveness, growth potential, and performance under the prevailing local arid conditions for their aesthetic looks, soil stabilization, and afforestation values. Chrysopogon zizanoides (Vetiver), is suitable for Kuwait because it can withstand fluctuating temperatures ranging from -14 to 55 °C with unique physical and physiological characteristics...
February 2018: Saudi Journal of Biological Sciences
Hanem F Khater, Ali M Ali, Galal A Abouelella, Marawan A Marawan, Marimuthu Govindarajan, Kadarkarai Murugan, Rao Z Abbas, Nelissa P Vaz, Giovanni Benelli
BACKGROUND: Myiasis induced by the sheep blowfly, Lucilia sericata, represents a public health problem widely distributed throughout the world. L. sericata larval stages feed on both humans and animals. L. sericata adults and larvae can play a role in spreading agents of mycobacterial infections. OBJECTIVES: It is critical to establish new and safe alternative methods of controlling L. sericata. METHODS: The insecticidal effectiveness and growth inhibition potential of three commercially available essential oils (EOs), vetiver (Chrysopogon zizanioides), cinnamon (Cinnamomum zeylanicum), and lavender (Lavandula angustifolia), as well as their blends, were tested against the second (L2) and third (L3) larval stages of L...
April 2018: International Journal of Dermatology
Nativ Dudai, Itai Tsion, Shiri Zemah Shamir, Nadav Nitzan, David Chaimovitsh, Alona Shachter, Abraham Haim
Soil pollution in Israel, due to diesel contamination, is a major concern, with gas stations, factories and refineries being the main polluters (>60%). Vetiver grass (Vetiveria zizanioides L.) is a perennial grass belonging to the Poaceae family, and is recognized world-wide for its potential as a plant with phytoremediation traits to contaminated soils. It is demonstrated here to decrease diesel contamination in field and court-yard trials. Chemical soil analysis indicated up to a 79% decrease (P < ...
April 1, 2018: Journal of Environmental Management
Anithadevi Kenday Sivaram, Panneerselvan Logeshwaran, Robin Lockington, Ravi Naidu, Mallavarapu Megharaj
The phytoremediation potential of 14 different plant species belonging to C3 and C4 carbon fixation pathway for soils spiked with polycyclic aromatic hydrocarbons (PAHs) such as benzo[a]pyrene (B[a]P) and pyrene (PYR) was investigated. A glasshouse experiment was conducted to measure the changes in morphological, physiological, biochemical parameters and the bioaccumulation and biodegradation ability of the plants in soils spiked with 48 and 194 mg kg-1 of B[a]P and PYR, respectively. The per cent removal efficacy of B[a]P and PYR by the tested plant species over a period of 50 days was from 6 to 26% and 14 to 40% respectively...
February 2018: Chemosphere
Jegannathan Kenthorai Raman, Catarina M Alves, Edgard Gnansounou
Plants and derivatives have been explored for unlimited purposes by mankind, from crop cultivation for providing food and animal feed, to the use for cosmetics, therapeutics and energy. Moringa tree and vetiver grass features, capabilities and applications were explored through a literature review. The suitability of these plants for the bioenergy industry products is evidenced, namely for bioethanol, biogas and biodiesel, given the lignocellulosic biomass content of these plants and characteristics of moringa seed oil...
February 2018: Bioresource Technology
Alexander Kofi Anning, Ruth Akoto
Chemically assisted phytoremediation is fast gaining attention as a biotechnology to accelerate heavy metal removal from contaminated substrates, but how different chemical amendments affect the process remains an important research question. Here, bioaccumulation factor (BAF), translocation factor (TF), removal efficiency (RE) and uptake of Hg, As, Pb, Cu and Zn by cattail (Typha latifolia) and vetiver (Chrysopogon zizanioides) were quantified in a potted experiment to determine the effects of amendments on the phytoremediation success...
February 2018: Ecotoxicology and Environmental Safety
Rungarun Tisgratog, Chutipong Sukkanon, John P Grieco, Unchalee Sanguanpong, Kamlesh R Chauhan, Joel R Coats, Theeraphap Chareonviriyaphap
The development of resistance by mosquitoes to current synthetic compounds has resulted in reduced effectiveness of prevention and control methods worldwide. An alternative nonchemical based control tools are needed to be evaluated particularly plant-derived essential oils. Several components of vetiver oil have been documented as insect repellents. However, detailed knowledge of those components action against insect remains unknown. In this study, behavioral response of Anopheles minimus to four constituents of vetiver oil (valencene, terpinen-4-ol, isolongifolene, vetiverol) was evaluated by using the high-throughput screening assay system...
January 10, 2018: Journal of Medical Entomology
Jeffrey D Kiiskila, Dibyendu Sarkar, Kailey A Feuerstein, Rupali Datta
Acid mine drainage (AMD) is extremely acidic, sulfate-rich effluent from abandoned or active mine sites that also contain elevated levels of heavy metals. Untreated AMD can contaminate surface and groundwater and pose severe ecological risk. Both active and passive methods have been developed for AMD treatment consisting of abiotic and biological techniques. Abiotic techniques are expensive and can create large amounts of secondary wastes. Passive biological treatment mainly consists of aerobic or anaerobic constructed wetlands...
December 2017: Environmental Science and Pollution Research International
Pauline Burger, Anne Landreau, Marie Watson, Laurent Janci, Viviane Cassisa, Marie Kempf, Stéphane Azoulay, Xavier Fernandez
Background: Vetiver is a key ingredient for the perfume industry nowadays. However, with the constant and rapid changes of personal tastes, this appeal could vanish and this sector could decline quite quickly. New dissemination paths need to be found to tap this valuable resource. Methods: In this way, its potential use in cosmetics either as an active ingredient per se (with cosmeceutical significance or presenting antimicrobial activity) has hence been explored in vitro. Results: In this contribution, we demonstrated that vetiver essential oil displays no particularly significant and innovative cosmetic potential value in formulations apart from its scent already largely exploited...
June 16, 2017: Medicines (Basel, Switzerland)
Reza Bakhshoodeh, Nadali Alavi, Pooya Paydary
Handling and treatment of composting leachate is difficult and poses major burdens on composting facilities. The main goal of this study was to evaluate usage of a three-stage, constructed wetland to treat leachate produced in Isfahan composting facility. A pilot-scale, three-stage, subsurface, horizontal flow constructed wetland, planted with vetiver with a flow rate of 24 L/day and a 15-day hydraulic retention time, was used. Removal of organic matter, ammonia, nitrate, total nitrogen, suspended solids, and several heavy metals from Isfahan composting facility leachate was monitored over a 3-month period...
October 2017: Environmental Science and Pollution Research International
Le Thi Song Thao, Trinh Trung Tri Dang, Wilawan Khanitchaidecha, Duangdao Channei, Auppatham Nakaruk
The properties and photocatalytic performance of anatase nanoparticles of pure TiO₂ and a core-shell structure of TiO₂ on calcined vetiver grass leaves have been compared. Samples were fabricated by sol-gel and heating at 450 °C for 5h.The comparison was based on data for X-ray diffraction(XRD), UV-Vis spectrophotometry, photoluminescence, transmission electron microscopy, specific surface area measurement, pore volume assessment, and methylene blue degradation testing. The results showed that the pure TiO2 consisted of agglomerated equiaxed nanoparticles of individual grain sizes in the range 10-20 nm...
January 30, 2017: Materials
Savitree Limtong, Pirapan Polburee, Thunnicha Chamnanpa, Pannida Khunnamwong, Pitayakon Limtong
Two strains, DMKU-LV83 and DMKU-LV85, of a novel yeast species were isolated from the phylloplane of vetiver grass collected in Thailand by plating of leaf washings. Analysis of the sequences of the D1/D2 region of the large subunit (LSU) rRNA gene showed that the two strains represent a single novel species and most closely related to Meira miltonrushii. However, the novel species differed from the type strain of M. miltonrushii (MCA 3882T) by 5.5 % nucleotide substitutions in the D1/D2 region and 8.9 % nucleotide substitutions in the ITS region...
July 26, 2017: International Journal of Systematic and Evolutionary Microbiology
Shraddha Singh, Suvarna Sounderajan, Kiran Kumar, D P Fulzele
Vetiver grass (Vetiveria zizanoides L. Nash) is found to be a suitable candidate for the phytoremediation of heavy metals. An investigation of arsenic (As) accumulation, translocation and tolerance was conducted in V. zizanoides plantlets upon exposure to different concentrations of arsenic (10, 50, 100 and 200µM) for 7 and 14 d. V. zizanoides plants were found effective in remediation of As, maximum being at 200µM after 14 d of exposure. The results of TBARS and photosynthetic pigments demonstrated that plants did not experience significant toxicity at all the concentrations of As after 7 days, however an increase in their level was found after 14 d...
November 2017: Ecotoxicology and Environmental Safety
Wan-Gou Liu, Jin-Xiang Liu, Mei-Ling Yao, Qi-Fu Ma
BACKGROUND: Vetiver grass (Vetiveria zizanioides L.) is widely used in more than 120 countries for land management (e.g. rehabilitation of saline lands). A wild ecotype of vetiver grass was found in southern China in the 1950s, but little is known about its adaptability to saline stress. For the purpose of understanding its tolerance to salinity as well as corresponding tolerance mechanisms, in a greenhouse with natural lighting, seedlings were grown in culture solutions and subjected to a range of NaCl concentrations for 18 days...
December 2016: Botanical Studies (Taipei, Taiwan)
Yanhui Lu, Qi Bai, Xusong Zheng, Zhongxian Lu
Catalase (CAT) is an important antioxidant enzyme that protects organisms against oxidative stresses by eliminating hydrogen peroxide. In this study, we cloned and characterized a full-length cDNA of CAT from Chilo suppressalis (CsCAT) and examined the influence of environmental stresses on CsCAT expression and enzyme activity. The cDNA contains a 1659-bp open reading frame encoding a polypeptide of 553 amino acids most closely related (90.14%) to Papilio polytes catalases. The CsCAT was expressed in all developmental stages with the highest expression in the fat body, and the CsCAT enzyme activity closely mirrored its observed mRNA expression patterns...
August 1, 2017: Journal of Economic Entomology
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