Latest Research on Mineral Composition: Feb – 2020

Latest Research on Mineral Composition: Feb – 2020

The Distinction between Grain Size and Mineral Composition in Sedimentary-Rock Nomenclature

A system of grain-size nomenclature of terrigenous sediments and sedimentary rocks is introduced wherein fifteen major textural groups are defined on the ratios of gravel, sand, silt, and clay. Further subdivision of every class is predicated on the median diameter of every size fraction present. Next, the mineral composition of terrigenous sedimentary rocks is taken into account . A triangular diagram is employed to define eight rock types (orthoquartzite, arkose, graywacke, and five transitional types) supported the mineralogy of the silt-sand-gravel fraction and ignoring clay content. the author contends that the present practice of calling all clayey sandstones “graywackes” isn’t valid, inasmuch because it represents a confusion of texture with composition. [1]

Mineral composition and ash content of six major energy crops

The chemical composition of biofuels has not received adequate attention as long as it’s a crucial aspect within the introduction of energy crops. during this study, the ash content and mineral composition (C, N, Al, Ca, Cl, Fe, K, Mg, Na, P, S, Si) of stems, leaves and reproductive organs of some promising energy crops were determined and compared with the respective recommended thresholds reported in literature. Overall, cynara exhibited the very best ash and mineral contents, which indicate high slagging, fouling and corrosion tendencies. [2]

Mineral composition of non-conventional leafy vegetables

Six non-conventional leafy vegetables consumed largely by the agricultural populace of Nigeria were analyzed for mineral composition. Mineral contents seemed to be hooked in to the sort of vegetables. thorny amaranth and baobab leaves contained the very best level of iron (38.4 mg/100 g and 30.6 mg/100 g dw, respectively). These values are low compared to those for common Nigerian vegetables but above those for other food sources. All the vegetables contained high levels of calcium compared to common vegetables, thus they might be an upscale source of this mineral. Microelement content of the leaves varied appreciably. Zinc content was highest in Moringa oleifera, baobab and sicklepod leaves (25.5 mg/100 g, 22.4 mg/100 g and 20.9 mg/100 g dw, respectively) while the manganese content was comparatively higher in taro. [3]

Snow-dirt sludge as an indicator of environmental and sedimentation processes in the urban environment

The formation of snow-dirt sludge (SDS) via the blending of snow and surface-deposited sediment by vehicles and pedestrians is one among the smallest amount studied sedimentation processes in urban areas. The aim of this study was to analyse the fabric , mineral, particle size, and chemical compositions of the SDS solid phase. The study was conducted using Ekaterinburg, Russia, as an example city with an intense anthropogenic impact and an extended cold snowy period. the typical content of the SDS solid phase was approximately 35 g L−1 of meltwater on heavy traffic roads, of which the dust fraction. [4]

Phytochemical Properties, Proximate and Mineral Composition of Curcuma longa Linn. and Zingiber officinale Rosc.: A Comparative Study

Aims: to research the phytochemical property, proximate and mineral composition of turmeric and common ginger dried rhizomes.

Study Design: Activity directed phytochemical screening, proximate analysis and mineral composition investigation of C. longa and Z. officinale rhizomes using in vitro methods.

Place and Duration of Study: Medicinal Plants Section, Bioresources Development Centre, Ogbomoso, Nigeria between October and November, 2016.

Methodology: C. longa and Z. officinale rhizomes were separately washed dried (at room temperature) and pulverized. The powdered rhizomes were then used for phytochemical screening, proximate analysis and mineral composition investigation. [5]

Reference

[1] Folk, R.L., 1954. The distinction between grain size and mineral composition in sedimentary-rock nomenclature. The Journal of Geology, (Web Link)

[2] Monti, A., Di Virgilio, N. and Venturi, G., 2008. Mineral composition and ash content of six major energy crops. Biomass and Bioenergy, (Web Link)

[3] Barminas, J.T., Charles, M. and Emmanuel, D., 1998. Mineral composition of non-conventional leafy vegetables. Plant foods for human nutrition, (Web Link)

[4] Snow-dirt sludge as an indicator of environmental and sedimentation processes in the urban environment
Andrian Seleznev, Ilia Yarmoshenko, Georgy Malinovsky, Ekaterina Ilgasheva, Elena Baglaeva, Anastasia Ryanskaya, Daria Kiseleva & Tamara Gulyaeva
Scientific Reports, (Web Link)

[5] Taoheed, A. A., Tolulope, A. A., Saidu, A. B., Odewumi, O., Sunday, R. M. and Usman, M. (2017) “Phytochemical Properties, Proximate and Mineral Composition of Curcuma longa Linn. and Zingiber officinale Rosc.: A Comparative Study”, Journal of Scientific Research and Reports, (Web Link)

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