Structure of flocs of latex particles formed by addition of protein from Moringa seeds

Hellsing, Maja S.; Kwaambwa, Habauka M.; Nermark, Fiona M.; Nkoane, Bonang; Jackson, Andrew; Wasbrough, Matthew J.; Berts, Ida; Porcar, Lionel; Rennie, Adrian R.

doi:10.1016/j.colsurfa.2013.11.038

Cited by 33 publications

(24 citation statements)

References 49 publications

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“…The active coagulating substances are found in the cotyledons of the seeds (ICRAF, 2006). A recent study (Hellsing et al, 2013) also indicated that proteins extracted from the seeds of the M. stenopetala tree are effective flocculent for particles dispersed in water and are attractive as a natural and sustainable product for use in water purification.…”

Section: Seedsmentioning

confidence: 99%

Actual and Potential Applications of Moringa stenopetala, Underutilized Indigenous Vegetable of Southern Ethiopia: A Review

Seifu¹

2015

International Journal of Agricultural and Food Research

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Moringa stenopetala, locally called Haleko, is an indigenous vegetable tree native to southern Ethiopia and grown mainly for its food value. It is a drought tolerant and fast growing tree that has high nutritional value and the potential to alleviate malnutrition in the tropics. Millions of people in southern Ethiopia consume its leaves as a staple vegetable. It also has potential medicinal and industrial applications and significant economic contributions. Despite its actual and potential roles, M. stenopetala has been given little research and development attention. This paper reports actual and potential uses of Moringa stenopetala and highlights research gaps that need to be addressed in the future.

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Section: Seedsmentioning

confidence: 99%

Actual and Potential Applications of Moringa stenopetala, Underutilized Indigenous Vegetable of Southern Ethiopia: A Review

Seifu¹

2015

International Journal of Agricultural and Food Research

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“…Adsorption isotherm of MO seeds protein in pure D 2 O to sapphire (s) deduced from the neutron reflectivity data and fits (parameters shown in Table 3). For comparison the adsorption measured in previous studies to silica [10] ( ) and to polystyrene latex [14] ( ) are also shown. The inset shows the protein volume fraction profile for the highest concentration of protein on sapphire.…”

Section: Effect Of Adding Sds At Different Concentrationsmentioning

confidence: 97%

“…The use of the Moringa seed protein as a flocculating agent and the unusual dense flocs with a high fractal dimension that are formed has been studied using small-angle and ultra small-angle neutron scattering [14]. Results were discussed primarily in the context of water purification.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Moringa oleifera seed protein with a mineral surface and the influence of surfactants

Kwaambwa

Hellsing

Rennie

et al. 2015

Journal of Colloid and Interface Science

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The paper describes the adsorption of purified protein from seeds of Moringa oleifera to a sapphire interface and the effects of addition of the anionic surfactant sodium dodecylsulfate (SDS) and the cationic surfactant hexadecyltrimethylammonium bromide (CTAB). Neutron reflection was used to determine the structure and composition of interfacial layers adsorbed at the solid/solution interface. The maximum surface excess of protein was found to be about 5.3 mg m(-2). The protein does not desorb from the solid/liquid interface when rinsed with water. Addition of SDS increases the reflectivity indicating co-adsorption. It was observed that CTAB is able to remove the protein from the interface. The distinct differences to the behavior observed previously for the protein at the silica/water interface are identified. The adsorption of the protein to alumina in addition to other surfaces has shown why it is an effective flocculating agent for the range of impurities found in water supplies. The ability to tailor different surface layers in combination with various surfactants also offers the potential for adsorbed protein to be used in separation technologies.

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“…[18] The seed moringa flour remaining after oil extraction can be used as a fertilizer or as a flocculant to removal water contaminant [19]. Moringa seed flour Which used into water treatment with flocculation process technology to produce potable water for domestic consumption [20][21]. Moringa seeds also can be used to absorb and netralize colloidal charges in turbid water to remove it as sludge.…”

Section: Moringa Oleiferamentioning

confidence: 99%

“…Moringa seeds also can be used to absorb and netralize colloidal charges in turbid water to remove it as sludge. Moringa seed used for nontoxic and sustainable compared to other materials where drinking water was polluted [21] The main process of Moringa seed are primary, secondary and tertiary processes, but for natural flocculant which just primary process Ionic nature of some coagulant agent when using moringa seed as coagulant/flocculant cause better for water treatment than for wastewater treatment. A significant correlation between the ionic strength in the solvent and the extraction yield, as well as the extract efficiency, also [22].…”

Section: Moringa Oleiferamentioning

confidence: 99%

Potential of Natural Flocculant in Coagulation-Flocculation Wastewater Treatment Process

Zaman

2018

E3S Web Conf.

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Coagulation-flocculation process is one of the first step of wastewater treatment. Coagulant aid as flocculant material is an essential for it's treatment successfully as an important factor for the next step processes. Although, flocculant fron unnatural polymer have potentially to cause environmental contamination and may affect to human health due to its persistent in environment and difficulties to degraded. This paper examines some of the natural flocculants that have been developed and their potential used to wastewater treatment. A type of natural flocculant that is widely developed to treat wastewater is cassava starch. Plant seed extracts such as from Plantago ovata were able to remove turbidity was > 90% at pH 6-8. Flour of Moringa oleifera Lam seeds are used to treat various types of wastewater with the ability to remove color and turbidity was > 90%. Tamarindus indica pods seed, able to remove golden yellow was 60% and was 25% for direct fast scarlet. The latest development was used durio seed to treat leachate that showed high potential as natural flocculant. Natural flocculant application for water and wastewater treatment is able to decrease of energy using to production and commercialization of it.

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Structure of flocs of latex particles formed by addition of protein from Moringa seeds

Cited by 33 publications

References 49 publications

Actual and Potential Applications of Moringa stenopetala, Underutilized Indigenous Vegetable of Southern Ethiopia: A Review

Actual and Potential Applications of Moringa stenopetala, Underutilized Indigenous Vegetable of Southern Ethiopia: A Review

Interaction of Moringa oleifera seed protein with a mineral surface and the influence of surfactants

Potential of Natural Flocculant in Coagulation-Flocculation Wastewater Treatment Process

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