Comprehensive Review on pH and Nutrients Detection Sensitive Materials and Methods for Agriculture Applications

2019 ◽  
Vol 17 (9) ◽  
pp. 663-670 ◽  
Author(s):  
A. Akshaya Kumar ◽  
S. K. Naveen Kumar
Keyword(s):  
Chemical Properties ◽  
Strong Relationship ◽  
Review Article ◽  
Ion Selective Electrodes ◽  
Optical Parameters ◽  
Physical And Chemical Properties ◽  
Physical Chemical ◽  
Materials Used ◽  
Physical And Chemical ◽  
And Chemical Properties

This review article elaborates the pH and nutrients detection sensitive materials and methods along with their principle of operations, merits, demerits, and application area. The sensitive materials used in the sensors react with the analytes and shows variation in electrical, physical, chemical, biological and optical parameters. The glass probe method, optical light spectroscopy, ion-selective electrodes, ion-selective field effective transistors, electrochemical interdigitated conductimetric method and microcantilever methods are the predominant techniques to detect the pH and nutrients in various medium. Most of the researchers have discussed the fabrication of pH and nutrients sensors individually in various applications, but very few numbers of sensitive materials and techniques discussed to detect the pH and nutrients in the soil. There is a strong relationship between pH and nutrients in the soil based on a number of important physical and chemical properties of the soil. We are strongly recommending that soil pH and nutrients measuring sensors can develop through the combinational approach of pH and nutrients with the help of nanostructured materials, seems to be more effective for agriculture applications.

scholarly journals [NO TITLE AVAILABLE]

2012 ◽  
Vol 32 (3) ◽  
pp. 621-628
Author(s):  
Grazielle Gebrim Santos ◽  
Mara Reis Silva
Keyword(s):  
Chemical Properties ◽  
Ice Cream ◽  
Physical And Chemical Properties ◽  
Low Fat ◽  
Fat Replacers ◽  
Sugar Substitutes ◽  
Physical Chemical ◽  
Physical And Chemical ◽  
Microbiological Analyses ◽  
And Chemical Properties

The effect of replacing shortening and sugar on the physical and chemical properties of mangaba ice cream and its acceptability were evaluated. Ice cream formulations were tested with the following fat replacers: Selecta Light, Litesse, and Dairy Lo and the following sugar substitutes: Lactitol and Splenda. All formulations were subjected to physical, chemical, and microbiological analyses and evaluated by acceptability tests. In the sensory analysis, it was observed a larger acceptance of the formulations containing Selecta Light (SL) and the combination of Litesse, Lactiol, and Splenda (LLS). The largest reduction in total energetic value (50%) was observed in the formulation LLS. The use of fat and/or sugar substitutes caused a reduction in the air incorporation (overrun) and affected viscosity. The highest melting speed was observed in the formulation with Dairy-Lo, Lactitol, and Splenda. All formulations showed good levels of global acceptability and appearance. The substitution of shortening for fat replacers caused a reduction in air incorporation and changes in ice-cream viscosity. The low-fat mangaba ice-cream elaborated with Selecta Light was the best formulation in terms of viscosity and air incorporation when compared with the control. It also showed a good level of acceptability and low fat content.

scholarly journals KAJIAN SIFAT FISIK DAN KIMIA BUAH STROBERI BERDASARKAN MASA SIMPAN DENGAN PENGOLAHAN CITRA

2018 ◽  
Vol 12 (02) ◽  
pp. 138
Author(s):  
Rizky Ramadani Dwi Utari ◽  
Dedy Wirawan Soedibyo ◽  
Dian Purbasari
Keyword(s):  
Image Processing ◽  
Image Quality ◽  
Shelf Life ◽  
Chemical Properties ◽  
Strong Relationship ◽  
Physical And Chemical Properties ◽  
Chemical Image ◽  
Physical And Chemical ◽  
Non Destructive ◽  
And Chemical Properties

In the storage processes strawberries experiencesdetrimental changes so that they can affect the quality of fruit. This change can be detected by testing the physical and chemical properties in particular shelf life period. In generally the measurement of physical and chemical properties are done manually andcausing damage to the object being observed (destructive method). Based on description above, it is necessary to measure non-destructive method using digital image processing. This study aimed to identify the relationship between physical and chemical propertiesvariables and image quality variables (area, height, widht, perimeter red index andblue index) based on 0, 1, and 2 days shelf life using an image processing program. The sample used in this study were 155 pieces strawberry from A quality. The strawberry image was taken by using a CCD camerathen extracted using SharpDevelop 4.2 software. Physical and chemical properties of the strawberry were measured using digital O'hauss pioneer scales, penetrometer, refractometer and pH meter to obtain data on weight, hardness, total dissolved solids and acidity (pH). Correlation test results indicated from strong to very strong relationship between physical and chemical properties variablesand image quality variables with a range of correlation coefficient values from 0,725 to 1,000. Image quality variables that could be used as input for estimating shelf life was blue index, with validation test resulted 87,7%total accuracy. Keywords: characteristics, chemical, image processing, physical, shelf life, strawberry

scholarly journals PRODUÇÃO E CARACTERIZAÇÃO DE BIOCARVÃO A PARTIR DE BIOSSÓLIDOS ARMAZENADOS EM BAG’s GEOTÊXTEIS NO MUNICÍPIO DE RANCHARIA -SP

2019 ◽  
Vol 11 (4) ◽  
pp. 142-155
Author(s):  
Beatriz Regina de Ângelo ◽  
Rafaela Pelegrini Vital ◽  
Marcelo Rodrigo Alves ◽  
Jaqueline Oliveira da Silva ◽  
Melissa Arantes Pinto ◽  
...  
Keyword(s):  
Organic Matter ◽  
Sewage Sludge ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Pyrolysis Process ◽  
Physical Chemical ◽  
Physical And Chemical ◽  
Stable Material ◽  
And Chemical Properties

Sewage sludge refers to a nutrient-rich by-product and organic matter from treatment plants and has become a challenge for many research segments to find a rational and sustainable destination for this material. In this context, the carbonization of biomass (by the pyrolysis process) results in biochar, characterized by a very stable material with specific physical and chemical properties and can represent a very important tool for this challenge. Thus, the objective of the present work was to transform, bypyrolysis process, small portions of the biosolid generated in Rancharia ETE into biochar. In addition, both the biosolid and the generated bicarbons were subjected to physical, chemical and structural analyzes in order to proceed with their respective characterization. From the analysis, it was found that the treatment submitted to temperature of 550°C as the best option for possible applications.Keywords:biosolid; pyrolysis; biochar.

The Physical and Chemical Properties Changes of Broth during Phellinus fermentation

2013 ◽  
Vol 295-298 ◽  
pp. 279-282
Author(s):  
Zi Ping Zhu ◽  
Jian Zhong Chen ◽  
Bei Bei Lv ◽  
Xue Ming Tang
Keyword(s):  
Fermentation Process ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Soluble Protein Content ◽  
Physical Chemical ◽  
Initial Stage ◽  
Increasing Trend ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Variation Tendency

The physical and chemical properties changes of broth in the fermentation process of Phellinus and its mutant strain were studied. The results showed that the mycelia yield of the two strains of Phellinus increased rapidly in the first 6 days and increased slowly 6 days later, the soluble protein content of broth took on an increasing trend, up to 0.15 mg/mL and 0.13 mg/mL respectively, the variation tendency of the content of polysaccharide and viscosities of broth were semblable, that was declined in the initial stage of fermentation and change little in later stage. The physical, chemical properties and viscosities show similarity in both two strains’ broth, therefore, the physical and chemical properties of broth in the fermentation process of Phellinus changed regularly.

Study of Corrosion-Electrochemical Behavior of Aluminum-Beryllium Alloys Alloyed with Yttrium, Lanthanum and Cerium

2012 ◽  
Vol 510-511 ◽  
pp. 233-240
Author(s):  
A.S. Safarov ◽  
T.D. Dzhuraev ◽  
M.I. Halimova ◽  
Z.M. Karieva
Keyword(s):  
Experimental Data ◽  
Corrosion Resistance ◽  
Electrochemical Behavior ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Physical Chemical ◽  
Foundry Alloys ◽  
Physical And Chemical ◽  
Corrosion Electrochemical Behavior ◽  
And Chemical Properties

Advantage of alloys on the basis of system Al-Be,Al-Be-REM is raised technological, physical, chemical and corrosion resistance properties in damp and excessively aggressive atmospheres [. According to literary reviews, this alloys basically are foundry-hypoeuthectic and hypereuthectic, and the technology of moulding of these alloys very difficult and demands application of operations modifying. Difficultly deleted impurity basically (Fe), specifically influence phase structure, naturally influencing on physical and chemical properties industrial silumines with the maintenance not less than 0.4-0.5 %. Many additives as Fe, Mg, Ti, Be, especially in hypoeuthectic silumines increasing strength and foundry properties, can reduce them corrosion-resistance. In connection with the above-stated is of interest researches of influence of impurity such elements as, Be and REM on corrosion resistance industrial alumines. Studies corrosion-resistance spent samples potentiostatic a method on device " Potentiostate P-50" with a registering recorder in the environment of the muriatic solutions in a mode "Potential". he analysis of experimental data have shown, that addition Be, positively modifying structure of foundry alloys, reduces influences containing in it Fe, increases strength and corrosion resistance, which calculations testify experimental data of electrochemical indicators [2,3].

scholarly journals Nanoparticle synthesis approaches at a glance

2019 ◽  
Vol 2 (3) ◽  
pp. 1-10
Author(s):  
Wali Muhammad ◽  
Iqra Haleem ◽  
Naimat Ullah ◽  
Muhammad Qasim Khan ◽  
Senthil Kumar N
Keyword(s):  
Nanoparticle Synthesis ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
New Era ◽  
Physical Chemical ◽  
Scientists And Engineers ◽  
Physical And Chemical ◽  
And Chemical Properties

Nanotechnology has opened a new era for scientists and engineers to build nanomaterials with diverse applications. Nowadays, nanotechnology plays a vital rolein each and every sector due to its extraordinary physical and chemical properties. It deals with development and synthesis of variety of nanoparticles (NPs), which ranging from 1 to 100 nm. The major approaches used for the synthesis of NPs are top to bottom and bottom to up which mainly included physical, chemical and biological methodologies. This mini review highlights synthesis of NPs through various approaches specifically targeted biological route.

scholarly journals Morphogenetic features of properties of initial carbonate soils

2013 ◽  
pp. 324-332
Author(s):  
Roman Semashchuk
Keyword(s):  
Chemical Analysis ◽  
Key Words ◽  
Carbonate Rocks ◽  
Chemical Properties ◽  
Morphological Properties ◽  
Physical And Chemical Properties ◽  
Agricultural Plant ◽  
Physical Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

Results of studies of key morphological, physical-chemical and chemical properties of underdeveloped carbonate soils, which are influenced by woody, herbaceous and agricultural plant formations on eluvium-delluvium carbonate rocks, were given. Key words: initial soils, morphological properties, physical and chemical properties, gross chemical analysis.

scholarly journals Geotechnical and Physico-Chemical Characterization of Low Lime Fly Ashes

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Arif Ali Baig Moghal
Keyword(s):  
Chemical Properties ◽  
Chemical Characterization ◽  
Relative Importance ◽  
Physical And Chemical Properties ◽  
Fly Ashes ◽  
Physical Chemical ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

In order to explore the possibility of using low-lime fly ashes, the physical and chemical properties which have a direct bearing on their geotechnical and geoenvironmental behaviors have been investigated. In this paper, two types of low-lime fly ashes, originating from India, have been used. A brief account of various methods adopted in characterizing their physical, chemical, and geotechnical properties is presented. The relative importance of each of these properties in enhancing the bulk applicability of fly ashes has been brought out.

scholarly journals SuperMALT: Physical and Chemical Properties of Massive and Dense Clumps

2017 ◽  
Vol 13 (S332) ◽  
pp. 254-260
Author(s):  
Sudeep Neupane ◽  
Guido Garay ◽  
Yanett Contreras ◽  
Keyword(s):  
Angular Resolution ◽  
Chemical Properties ◽  
Evolutionary Stage ◽  
Physical And Chemical Properties ◽  
Line Profiles ◽  
High Excitation ◽  
Physical Chemical ◽  
Molecular Lines ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractThe SuperMALT survey is observing 76 MALT90 clumps at different evolutionary stages (from pre-stellar or quiescent to HII) in high excitation molecular lines and key isotopomers using the Apex 12m telescope with an angular resolution of ∼20” and a velocity resolution of ∼0.1 km/s. The aim of this survey is to determine the physical, chemical, and kinematical properties of the gas within clumps as they evolve. Here we report some preliminary results based on observations of the J=3-2 & 4-3 lines of HNC, HCN, HCO+, N2H+ and of the J=3-2 line of the isotopologue H13CO+. We find that the morphologies and line profiles vary with the evolutionary stage of the clumps. The average line width increases from quiescent to HII clumps while line ratios show hint of chemical differences among the various evolutionary stages.

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