Archive for the ‘Research’ Category

NANO MORINGA?

March 8, 2011

Nanoparticles using Moringa?

My first thought was you have got to be kidding. In the past couple of years we at Trees for Life have seen Moringa research covering everything from diabetis to ulcers, animal feed to water purification; and food supplements for lactating mothers to cancer recovery.  But in nano technology?  – read on.

Biosynthesis of Silver Nanoparticles Using Moringa oleifera Leaf Extract and Its Application to Optical Limiting

Authors: Sathyavathi, R.; Krishna, M. Bala Murali; Rao, D. Narayana

Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 3, March 2011 , pp. 2031-2035(5)

Abstract:

The Development of biologically inspired experimental processes for the synthesis of nanoparticles is evolving into an important branch of nanotechnology. The work presented here with the biosynthesis of silver nanoparticles using Moringa oleifera leaf extract as reducing and stabilizing agent and its application in nonlinear optics. The aqueous silver ions when exposed toMoringa oleifera leaf extract are reduced resulting in silver nanoparticles demonstrating the biosynthesis. The silver nanoparticles were characterized by UV-Visible, X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FT-IR) and transmission electron microscopy (TEM) techniques. TEM analysis shows a dispersion of the nanoparticles in a range of 5-80 nm with the average around 46 nm and are crystallized in face centred cubic symmetry. To show that these biosynthesized silver nanoparticles possess very good nonlinear properties similar to those nanoparticles synthesized by chemical route, we carried out the Z-scan studies with a 6 ns, 532 nm pulsed laser. We estimated the nonlinear absorption coefficient and compare it with the literature values of the nanoparticles synthesized through chemical route. The silver nanoparticles suspended in solution exhibited reverse saturable absorption with optical limiting threshold of 100 mJ/cm2.

I guess that there always has to be a first before there can be a second but who would have guessed that, Moringa could be an agent in Nano technology research?

 



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Trees for Life – Moringa Update

November 6, 2010

Research continues to expand the utilization and sustainability of Moringa oleifera as a plant with amazing benefits. Trees for Life reports that in the past month three research publications continue to show the importance and diversity of the plant.   

Biosorption of Ni(II) from aqueous phase by Moringa oleifera bark,  a low cost biosorbent; D. Harikishore Kumar Reddy, D.K. V., et.al., Science Direct .

In the article abstract Moringa oleifera bark (MOB), an agricultural solid waste by-product has been developed into an effective and efficient biosorbent for the removal of Ni(II) from aqua solutions. The biosorbent was characterized by x-ray diffraction, scanning election microscopy, elemental analysis and FTIR analyases…. finding of the present study indicates that MOB can be successfully used for separation of Ni(II) aqueous solutions.

Nutritive evaluation and Effect of Moringa oleifera pod on Clastogenic Potential in the Mouse; Promkum C. Kupradinun P, Tuntipopipat S, Butryee C., PubMed.

For centuries Moringa oleifera has been consumed as a vegetable and major ingredient in healthy Thai cuisine. Previous studies have shown that Moringa pod extracts act as bifunctional inducers along with displaying antioxidant properties and also inhibiting skin papillomagenesis. This study was aimed to determine the nutritive value, and clasataogenic and anticlastogenic potentisla of Moringa oleifera pod. The study demonstrated that bMO has no clastogenicity and possesses anticlastogenic potential against clastogens, and particularly a direct-acting  in the mouse.

Foam properties and Detergent Abilities of the Saponins from Camellia oleifera; Yu-Fen Chen , et.al., International Journal of Molecular Science.

The defatted seed meal of Camellia oleifera has been used as a natural detergent and its extract is commercially utilized as a foam-stabilizing emulsifying agent. The goal of this study was to investigate the foam properties and detergent ability of the saponins from defatted seed meal. The results show that the saponins content in the defatted seed meal of C. oleifera is hight than other traditional Chinese medicines.

Improvement of water treatment pilot plant with Moringa oleifera extract as flocculant agent

September 20, 2010

 

Informaworld.com reports:

Abstract Moringa oleifera extract is a high-capacity flocculant agent for turbidity removal in surface water treatment. A complete study of a pilot-plant installation has been carried out. Because of flocculent sedimentability of treated water, a residual turbidity occured in the pilot plant (around 30 NTU), which could not be reduced just by a coagulation-flocculation-sedimentation process. Because of this limitation, the pilot plant (excluded filtration) achieved a turbidity removal up to 70%. A slow sand filter was put in as a complement to installation. A clogging process was characterized, according to Carman-Kozeny’s hydraulic hypothesis. Kozeny’s k parameter was found to be 4.18. Through fouling stages, this k parameter was found to be up to 6.36. The obtained data are relevant for the design of a real filter in a continuous-feeding pilot plant. Slow sand filtration is highly recommended owing to its low cost, easy-handling and low maintenance, so it is a very good complement to Moringa water treatment in developing countries.

Authors: J. Beltr n-Herediaa; J. S nchez-Martna  http://www.informaworld.com/smpp/content~db=all~content=a713715423~frm=abslink?words=moringa

‘Miracle tree’ may help provide clean water to developing countries – Penn State University

September 13, 2010

University Park, Pa. — Often called the “miracle tree” for its potential to provide food, fuel and water in harsh environments, the moringa oleifera tree is at the center of a new effort by three Penn State engineers to provide clean drinking water to the developing world.

The work — funded by a year-long, $10,000 Environmental Protection Agency P3 grant — seeks to optimize a water treatment process involving the moringa seed.

“P3 – that’s people, prosperity and planet. It’s for the developing world,” said Stephanie Velegol, instructor in environmental engineering and a co-principal investigator on the grant.

Darrell Velegol, professor of chemical engineering and the grant’s principal investigator, said, “The idea behind our use of the moringa is this: the seeds of the tree contain proteins. One of them is a cationic protein, a positively-charged protein, which contains a little peptide sequence that acts like a molecular knife. So this little molecular knife goes through the bacterial cell wall and kills it, basically slitting it open. We have data showing that for one type of E. coli bacteria, the moringa proteins not only take the bacteria out, but kill the bacteria too.”

To read the complete story: http://live.psu.edu/story/48249