Effect of trace metals on the restoration potential of leaves of the medicinal plant,Portulaca oleracea linn

1998 ◽  
Vol 61 (3) ◽  
pp. 313-321 ◽  
Author(s):  
Palaniswamy Thangavel ◽  
Venkatasamy Subburam
2018 ◽  
Vol 69 (10) ◽  
pp. 2682-2692 ◽  
Author(s):  
Candice Popescu (Popiniuc) ◽  
Carmen Popescu ◽  
Stefan Manea ◽  
Valentin Vladut ◽  
Iulian Voicea ◽  
...  

In this paper, a study on the influence of extraction solvent on the active principles content of purslane - Portulaca oleracea extracts was performed. For the study were used both fresh and dried plants, chopped by plant chopping machine. The following extracts were obtained and analysed in the solvent systems mentioned below: (fresh) purslane extract in Ethanol 30%, (dry) purslane extract in Ethanol 30%; (fresh) purslane extract in EtOH 70%, (dry) purslane extract in EtOH 70%; (fresh) purslane extract in propylene glycol 20%, (dry) purslane extract in propylene glycol 20%; (fresh) purslane extract in PG 100%, (dry) purslane extract in PG 100%; (fresh) purslane extract in glycerine 20%, (dry) purslane extract in glycerine 20%; (fresh) purslane extract in R glycerine, (dry) purslane extract in R glycerine; purslane hydro-alcoholic glycerine extract. The results obtained in the study performed on purslane extracts in different solvents show that the capitalization of purslane can become very profitable and with beneficial effects on economy in our country, both in terms of food and as medicinal plant.


2020 ◽  
Vol 11 (7) ◽  
pp. 1277-1291
Author(s):  
Tsegaye Bojago

The purpose of the current study is to analyze the concentration levels of selected trace metals: Ca, Cu, Fe, K and Zn in medicinal plant Moringa stenopetala grown in SNNPR, Ethiopia. A wet digestion procedure is used. Thus, the result showed that the concentrations of Ca, Cu, Fe, K and Zn in Moringa stenopetala grown in Gamo Gofa (Arbaminch) were;2.80±0.36, 0.866±0.134, 7.98±1.23, 3.02±0.63 and 84±0.92 mg/Kg, in Wolaita 3.28±0.28, 0.94±0.16, 7.13±1.32, 7.13±1.32 and 0.61±0.11mg/Kg and in Konso were; 2.97±0.67, 0.77±0.098, 6.79±0.73, 2.39±0.23 and 0.37±0.006mg/Kg respectively.


2012 ◽  
Vol 80 ◽  
pp. 37-41 ◽  
Author(s):  
Jian Yan ◽  
Li-Rong Sun ◽  
Zhong-Yu Zhou ◽  
Yu-Chan Chen ◽  
Wei-Min Zhang ◽  
...  

2020 ◽  
Vol 5 (3) ◽  
pp. 2962-2963
Author(s):  
Chen Li ◽  
Jinsong Li ◽  
Tianyi Cao ◽  
Kun Li ◽  
Tao Tang

This research was carried out to assess the mineral components of the selected vegetable Portulaca Oleracea which is commonly used as food; Ca, Mg, and Fe analyzed by Atomic Absorption Spectrophotometric (AAS) and Na, and K Flame photometric spectrophotometer. The results of macro-elements obtained having values of Ca (138.75, 140.4 ppm) for Iraqi and Lebanon origin respectively, Mg (214.53, 211.71 ppm) for Iraqi and Lebanon origin respectively, Fe is found to be (8.9, 7.03 ppm) for Iraqi and Lebanon origin respectively, Na (4, 38ppm) for Iraqi and Lebanon origin respectively, and K (18, 16 ppm) for Iraqi and Lebanon origin respectively; The indication results of this vegetable has the potential to provide essential nutrients to the human beings and it is found to be a good source of minerals particularly Ca, Mg, Fe, Na and K.


Author(s):  
B. J. Panessa ◽  
H. W. Kraner ◽  
J. B. Warren ◽  
K. W. Jones

During photoexcitation the retina requires specific electrolytes and trace metals for optimal function (Na, Mg, Cl, K, Ca, S, P, Cu and Zn). According to Hagins (1981), photoexcitation and generation of a nerve impulse involves the movement of Ca from the rhodopsin-ladened membranes of the rod outer segment (ROS) to the plasmalemma, which in turn decreases the in-flow of Na into the photoreceptor, resulting in hyperpolarization. In toad isolated retinas, the presence of Ba has been found to increase the amplitude and prolong the delay of the light response (Brown and Flaming, 1978). Trace metals such as Cu, Zn and Se are essential for the activity of the metalloenzymes of the retina and retina pigment epithelium (RPE) (i.e. carbonic anhydrase, retinol dehydrogenase, tyrosinase, glutathione peroxidase, superoxide dismutase...). Therefore the content and fluctuations of these elements in the retina and choroid are of fundamental importance for the maintenance of vision. This paper presents elemental data from light and dark adapted frog ocular tissues examined by electron beam induced x-ray microanalysis, x-ray fluorescence spectrometry (XRF) and proton induced x-ray emission spectrometry (PIXE).


Author(s):  
James S. Webber

INTRODUCTION“Acid rain” and “acid deposition” are terms no longer confined to the lexicon of atmospheric scientists and 1imnologists. Public awareness of and concern over this phenomenon, particularly as it affects acid-sensitive regions of North America, have increased dramatically in the last five years. Temperate ecosystems are suffering from decreased pH caused by acid deposition. Human health may be directly affected by respirable sulfates and by the increased solubility of toxic trace metals in acidified waters. Even man's monuments are deteriorating as airborne acids etch metal and stone features.Sulfates account for about two thirds of airborne acids with wet and dry deposition contributing equally to acids reaching surface waters or ground. The industrial Midwest is widely assumed to be the source of most sulfates reaching the acid-sensitive Northeast since S02 emitted as a byproduct of coal combustion in the Midwest dwarfs S02 emitted from all sources in the Northeast.


Sign in / Sign up

Export Citation Format

Share Document