scholarly journals Uso de sementes de Moringa Oleífera (LAM) no tratamento de efluente têxtil

2017 ◽  
Vol 1 (33) ◽  
pp. 37
Author(s):  
Reinaldo Romero Vargas ◽  
Marise Cotta Machado ◽  
Maria Aparecida Da Silva ◽  
Thiago Engels
Keyword(s):  
Large Scale ◽  
Moringa Oleifera ◽  
Spectrophotometric Analysis ◽  
Textile Dyes ◽  
Saline Extract ◽  
Coagulant Activity ◽  
Saline Solutions ◽  
Operational Aspect ◽  
Seed Extracts ◽  
Moringa Oleifera Lam

The seed extracts of Moringa oleifera has been studied as alternative coagulating agent to chemicals commonly used in order to minimize costs while reducing environmental impacts and human health arising from traditional processes of wastewater treatment. This work studied the performance of the aqueous extract of Moringa oleifera seed in the removal of four different types of textile dyes classified as dispersed, acidic, basic and reactive. Studies with aqueous and saline solutions were performed aiming to improve performance in the removal of textile dyes, and stability testing on the storage time of the extract of Moringa oleifera. Studies were performed using spectrophotometric analysis by means of calibration curves of textile dyes in an aqueous medium.The results showed that the seed extract of Moringa oleifera was quite efficient in the removal of textile dyes, except for the cationic type. Regarding the behavior of textile dyes in aqueous solution and the saline extract were not found significant differences in terms of removal. Other promising results were obtained to evaluate coagulant activity of the extract up to three days storage at room temperature. This fact is important from the operational aspect arising from the use of the extract on a large scale: the possibility to prepare a larger amount of extract, without loss of coagulant activity may enable the utilization of this resource

Application of Moringa oleifera Lam. fractionated proteins for inactivation of Escherichia coli from water

2020 ◽  
Vol 81 (2) ◽  
pp. 265-273 ◽  
Author(s):  
Fabiane Masala R. Silveira ◽  
Aline Takaoka A. Baptista ◽  
Tatiane V. Dutra ◽  
Benício Alves de Abreu Filho ◽  
Raquel G. Gomes ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Moringa Oleifera ◽  
Protein Fractions ◽  
Saline Extract ◽  
E Coli ◽  
Bactericidal Effects ◽  
Natural Coagulants ◽  
Chemical Products ◽  
Seed Extracts ◽  
Moringa Oleifera Lam

Abstract Chemical products traditionally used in the disinfection of water bodies often pose human health risks. For this reason, studies on natural coagulants such as Moringa oleifera Lam. represent an alternative for the inactivation of pathogenic microorganisms, among which is Escherichia coli. This study evaluated the effect of different concentrations of coagulants obtained from Moringa seed extracts and their protein fractions in the inactivation of E. coli during the coagulation/flocculation process. The coagulants studied were the aqueous extract, saline extract and protein fractions albumin and globulin, highlighting that the protein fractions were more effective on inactivating E. coli. The protein fraction globulin at a concentration of 10.0 mg L−1 showed bactericidal effects against E. coli within 18 min, whereas the albumin showed a bacteriostatic effect within 48 min because it isolated colonies in the sediment sample.

scholarly journals Antimicrobial activity of Moringa oleifera: A short review

2020 ◽  
Vol 12 (1) ◽  
pp. 128-132
Author(s):  
I.A. Raubilu ◽  
U. Isah ◽  
M.A. Ahmad
Keyword(s):  
Antimicrobial Activity ◽  
Middle East ◽  
Key Words ◽  
Large Scale ◽  
Moringa Oleifera ◽  
Short Review ◽  
Medicinal Properties ◽  
Pathogenic Microbes ◽  
Potential Use ◽  
Moringa Oleifera Lam

Moringa oleifera Lam. (Family Moringaceae) is well – known for its various medicinal properties. It grows wild in the tropical and subtropical areas of Asia, Africa and the Middle East. In Nigeria, Moringa oleifera trees are planted at a large scale especially in the northern part of the country. It has been widely used in the treatment of certain diseases as a traditional medicinal herb. Antimicrobial activity is the most studied property of Moringa oleifera. Many studies have shown that nearly all types of Moringa oleifera tissues exhibit antimicrobial activity including antibacterial, antifungal, antiviral and anti parasitic property. This review describes progress on research conducted to understand the antimicrobial activity of Moringa oleifera and discusses the potential use of Moringa oleifera in the control of pathogenic microbes. Key words: Antimicrobial activity; Moringa oleifera; pathogenic microbes, control.  

Immobilization of a peroxidase from Moringa oleifera Lam. roots (MoPOX) on chitosan beads enhanced the decolorization of textile dyes

2021 ◽  
Author(s):  
Larissa Alves Lopes ◽  
Lucas Pinheiro Dias ◽  
Helen Paula Silva da Costa ◽  
João Xavier da Silva Neto ◽  
Eva Gomes Morais ◽  
...  
Keyword(s):  
Moringa Oleifera ◽  
Textile Dyes ◽  
Chitosan Beads ◽  
Moringa Oleifera Lam

scholarly journals Cytotoxicity and genotoxicity assessment of the extract and lectins from Moringa oleifera Lam. Seeds / Avaliação da citotoxicidade e genotoxicidade do extrato e lectinas das sementes de Moringa oleifera Lam

2021 ◽  
Vol 7 (10) ◽  
pp. 94854-94869
Author(s):  
Matheus Cavalcanti De Barros ◽  
Larissa Cardoso Corrêa de Araújo Videres ◽  
André Mariano Batista ◽  
Maria Madalena Pessoa Guerra ◽  
Luana Cassandra Breitenbach Barroso Coelho ◽  
...  
Keyword(s):  
Moringa Oleifera ◽  
Mononuclear Cells ◽  
Human Peripheral Blood ◽  
Exposure Dose ◽  
Peripheral Blood Mononuclear ◽  
Coagulant Activity ◽  
Diphenyltetrazolium Bromide ◽  
Class 1 ◽  
Dose Dependent ◽  
Moringa Oleifera Lam

Moringa oleifera seeds are used globally as a treatment for water and contain the lectins cMoL and WSMoL, which display coagulant activity. In this study, we sought to determine the cytotoxicity and genotoxicity of the M. oleifera seed extract (SE), prepared with the same procedure that people use for treating water, as well as cMoL and WSMoL, in human peripheral blood mononuclear cells (PBMCs). Cell viability was assessed using the 3-(4,5-dimethylthiazol-2-yl)2,5-diphenyltetrazolium bromide (MTT) assay, while genotoxicity was evaluated using the comet assay, with cell nucleoids categorized in classes ranging from 0 (without damage) to 4 (maximum damage). The PBMCs treated with SE, cMoL, and WSMoL displayed viability higher than 60% in treatments with concentrations up to 100 µg/mL. In addition, SE and cMoL displayed low genotoxicity owing to the detection of nucleoids in class 1. However, the number of nucleoids in all classes increased when 50 and 100 µg/mL of WSMoL was administered, reaching a damage frequency of 50.0%. Although M. oleifera SE, cMoL, and WSMoL were not cytotoxic to PBMCs after 24 h of exposure, dose-dependent genotoxic effects were observed, especially with WSMoL. These findings indicate that caution must be exercised when selecting a lectin/extract concentration for water treatment.

The Effectiveness of Moringa oleifera Seed extract as a BioCoagulant for Mine Waste Water Treatment

2021 ◽  
Author(s):  
Stephen K. Kyeremeh ◽  
Samuel Yeboah Nyarko ◽  
Ayisha Affo Souleymane ◽  
Ishmael Quaicoe
Keyword(s):  
Wastewater Treatment ◽  
Large Scale ◽  
Moringa Oleifera ◽  
Mine Waste ◽  
Waste Water Treatment ◽  
Jar Test ◽  
Critical Issues ◽  
Mine Wastewater ◽  
Moringa Oleifera Seed ◽  
Seed Extracts

Mine wastewater usually requires treatment before it is discharged into the environment. Over the years, thevolume and quality of wastewater generated and discharged into the environment by mining and minerals’industries have remained critical issues due to the status of environmental standards and stringent dischargeregulations. Coagulants used in mine wastewater treatment are often expensive and pose health risk to humansand the environment at large. Therefore, the use of natural substitutes which have low or no harmful effects intreating mine wastewater is considered an effective step towards protecting the environment. The effect ofMoringa oleifera (MO) seed extracts as bio-coagulant in mine wastewater treatment was explored. The studywas carried out using a conventional jar test apparatus with moringa oleifera seed extracts as coagulant atdifferent stock concentrations (5, 10, 15 and 20 %). In each treatment (T1, T2, T3 and T4), 1000 mL of minewastewater sampled from a large scale mine was contacted with 5-50 mL of MO for corresponding ten beakers.The results showed that addition of the bio-coagulant generally led to a significant decrease in the turbidity aswell as the metal ions (Fe, Cu, Pb, Cd, Co, Mn, Zn, Ni and Cr) concentrations. Moreover, there was an increasein the pH of the wastewater. However, the bio-coagulant had two opposing effects on TDS and EC, which wasstock concentration dependent. Overall, all the residual values for parameters measured were within (WHO)acceptable limit. These results suggest that moringa oleifera seed, a natural coagulant, is a viable substitute tosynthetic and inorganic coagulants in mine wastewater treatment.

Monthly variation and impact of pollution on the nutritional value of Moringa oleifera (Lam.) Leaves

2017 ◽  
Vol 6 (10) ◽  
pp. 5535
Author(s):  
Sachin Umesh Dubey ◽  
Madhu Kanta Kapoor
Keyword(s):  
Vitamin C ◽  
Nutritional Value ◽  
Moringa Oleifera ◽  
Reducing Sugars ◽  
Essential Amino Acids ◽  
Monthly Variation ◽  
Vehicular Pollution ◽  
Total Sugars ◽  
Urban Sewage ◽  
Moringa Oleifera Lam

Moringa oleifera Lam., commonly found tree in sub-Himalayan tracts of India, Pakistan, Bangladesh and Afghanistan has a high nutrition value. The leaves, flowers and immature pods of Moringa are used as a vegetable in many countries. The leaves are highly nutritious and medicinal in nature. They are a rich source of iron, calcium, vitamin A, vitamin C, proteins, and essential amino acids. Hence Moringa leaves can be a good source of protein for the vegetarians and the under-nourished population. Present investigation deals with the study of monthly variation in the nutritional value of Moringa leaves from the month of June 2015 to January 2016. Impact of urban sewage pollution and roadside vehicular pollution on the amount of reducing and total sugars, chlorophylls (a, b and total), proteins, vitamin-C and pH of the leaves, was also studied. Results revealed that the highest amounts of reducing sugars, total sugars, chlorophyll b and total chlorophyll during October 2015 whereas proteins, chlorophyll a, vitamin C and pH were highest during January 2016. Leaf samples collected from all the study sites exhibited minimum amounts of reducing sugars, chlorophylls (a, b and total) and pH during July 2015 whereas total sugars were lowest during December 2015. Proteins and vitamin C values were lowest during August and June 2015 respectively. Sewage and vehicular pollution showed an adverse effect on the nutritional contents of Moringa oleifera leaves. Of the two polluted sites, samples from near the sewage flow showed higher impact.

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