The preparation of neem oil microemulsion (Azadirachta indica) and the comparison of acaricidal time between neem oil microemulsion and other formulations in vitro

Xu, Jiao; Fan, Qiao-Jia; Yin, Zhongqiong; Li, Xuting; Du, Yonghua; Jia, Renyong; Wang, Kaiyu; Lü, Cheng; Ye, Gang; Geng, Yi; Su, Gang; Zhao, Ling; Hu, Tingzhang; Shi, Fei; Zhang, Li; Wu, Changlong; Tao, Cui; Ya-xue, Zhang; Shi, Dongxia

doi:10.1016/j.vetpar.2010.01.016

Cited by 63 publications

(34 citation statements)

References 13 publications

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“…Neem is also a non-toxic plant which possesses excellent antimicrobial properties [10,11,12]. In fact, Baswa et al [13] revealed that the neem oil has bactericidal activity against 14 strains of pathogenic bacteria such as Staphylococcus aureus [14], Staphylococcus typhus [15], and Escherichia coli , Streptococcus mutans and lactobacilli [16].…”

Section: Introductionmentioning

confidence: 99%

Physical and Antimicrobial Properties of Starch-PVA Blend Films as Affected by the Incorporation of Natural Antimicrobial Agents

Cano

Cháfer

Chiralt

et al. 2015

Foods

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In this work, active films based on starch and PVA (S:PVA ratio of 2:1) were developed by incorporating neem (NO) and oregano essential oils (OEO). First, a screening of the antifungal effectiveness of different natural extracts (echinacea, horsetail extract, liquid smoke and neem seed oil) against two fungus (P. expansum and A. niger) was carried out. The effect of NO and OEO incorporation on the films’ physical and antimicrobial properties was analyzed. Only composite films containing OEO exhibited antibacterial and antifungal activity. Antibacterial activity occurred at low OEO concentration (6.7%), while antifungal effect required higher doses of OEO in the films. Incorporation of oils did not notably affect the water sorption capacity and water vapor barrier properties of S-PVA films, but reduced their transparency and gloss, especially at the highest concentrations. The mechanical response of the S-PVA films was also negatively affected by oil incorporation but this was only relevant at the highest oil ratio (22%). S-PVA films with 6.7% of OEO exhibited the best physical properties, without significant differences with respect to the S-PVA matrix, while exhibiting antibacterial activity. Thus, the use of OEO as a natural antimicrobial incorporated into starch-PVA films represents a good and novel alternative in food packaging applications.

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Section: Introductionmentioning

confidence: 99%

Physical and Antimicrobial Properties of Starch-PVA Blend Films as Affected by the Incorporation of Natural Antimicrobial Agents

Cano

Cháfer

Chiralt

et al. 2015

Foods

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“…Therefore, vacuum conditions may cause severe respiratory system damage and death. Actually, some anti-tick agents are emulsifying agents containing fatty acids such as sorbitan esters of fatty acids, which can seal the stigma [20], [21]. This implies that ticks can be choked to death.…”

Section: Discussionmentioning

confidence: 99%

Observation of Live Ticks (Haemaphysalis flava) by Scanning Electron Microscopy under High Vacuum Pressure

et al. 2012

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Scanning electron microscopes (SEM), which image sample surfaces by scanning with an electron beam, are widely used for steric observations of resting samples in basic and applied biology. Various conventional methods exist for SEM sample preparation. However, conventional SEM is not a good tool to observe living organisms because of the associated exposure to high vacuum pressure and electron beam radiation. Here we attempted SEM observations of live ticks. During 1.5×10−3 Pa vacuum pressure and electron beam irradiation with accelerated voltages (2–5 kV), many ticks remained alive and moved their legs. After 30-min observation, we removed the ticks from the SEM stage; they could walk actively under atmospheric pressure. When we tested 20 ticks (8 female adults and 12 nymphs), they survived for two days after SEM observation. These results indicate the resistance of ticks against SEM observation. Our second survival test showed that the electron beam, not vacuum conditions, results in tick death. Moreover, we describe the reaction of their legs to electron beam exposure. These findings open the new possibility of SEM observation of living organisms and showed the resistance of living ticks to vacuum condition in SEM. These data also indicate, for the first time, the usefulness of tick as a model system for biology under extreme condition.

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“…Some of the nanopesticides and herbicides are available as water-or oil-based nanoemulsions having uniform suspension of pesticide or herbicide which can be mixed with gels, creams, liquids, etc. Generally neem oil (Anjali et al 2010 ;Jerobin et al 2012 ;Xu et al 2010 ), garlic essential oil (Yang et al 2009 ), Artemisia arborescens L essential oil (Lai et al 2006 ) and Lippia sidoides oil (Abreu et al 2012 ) are used as target substances. Various scientists suggested use of nanodelivery systems for pheromones (Bhagat et al 2013 ;Hellmann et al 2011 ), capsaicin from chili peppers (Bohua and Ziyong 2011 ) and Lansiumamide B extract from the seeds of Clausena lansium (Yin et al 2012 ).…”

Section: Nanocides (Pesticides and Herbicides)mentioning

confidence: 99%

Nanoparticles: The Next Generation Technology for Sustainable Agriculture

Panpatte

Jhala

Shelat

et al. 2016

Microbial Inoculants in Sustainable Agricultural Productivity

110

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Agri-nanotechnology has the potential to transform the agricultural practices. Nanoparticles of interest can be produced both by various physical and chemical methods. The biogenetic production of nanoparticles is now of high interest due to simplicity of the procedures and their versatility. Several species of bacteria and plants are able to synthesize nanoparticles or help in the process of their production. Implementation of nanoparticlebased smart delivery system and nanosensors holds the promise of controlled release of agrochemicals and site-targeted delivery of various macromolecules needed for improved plant disease resistance, effi cient nutrient utilization and improved plant defence in an environment-friendly manner. Nanoparticle-mediated plant transformation has the potential for genetic modifi cation of plant improvement.

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The preparation of neem oil microemulsion (Azadirachta indica) and the comparison of acaricidal time between neem oil microemulsion and other formulations in vitro

Cited by 63 publications

References 13 publications

Physical and Antimicrobial Properties of Starch-PVA Blend Films as Affected by the Incorporation of Natural Antimicrobial Agents

Physical and Antimicrobial Properties of Starch-PVA Blend Films as Affected by the Incorporation of Natural Antimicrobial Agents

Observation of Live Ticks (Haemaphysalis flava) by Scanning Electron Microscopy under High Vacuum Pressure

Nanoparticles: The Next Generation Technology for Sustainable Agriculture

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