scholarly journals PENGGUNAAN ASAP CAIR TEMPURUNG KELAPA UNTUK MENURUNKAN KADAR TIMBAL (Pb) PADA BIJI KEDELAI (Glycine max) Utilization of Coconut Shell Liquid Smoke to Reduce Lead (Pb) Levels in Soybean Seeds (Glysine max)

2015 ◽  
Vol 35 (03) ◽  
pp. 331 ◽  
Author(s):  
Sri Hartati ◽  
Purnama Darmadji ◽  
Yudi Pranoto
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Glycine Max ◽  
Specific Gravity ◽  
Carbonyl Compounds ◽  
Model Experiment ◽  
Chelating Agent ◽  
Coconut Shell ◽  
Soybean Seeds ◽  
Liquid Smoke

Liquid smoke of coconut shell has functional properties as bioflavor, preservative, and chelating agent, because it contains the active compounds of phenol, carbonyl, and acid. But the use of liquid smoke as chelating agent had not been developed. A study on chelation of heavy metal Pb by coconut shell liquid smoke on soybean seeds has beenconducted. The aimed of the study was to evaluate the effectiveness of liquid smoke in the reducing heavy metals Pb in soybean seeds, evaluate the change in the components of the liquid smoke was used for chelation heavy metals Pb, and evaluate the influence of the phenol, carbonyl, and acid components in the chelation heavy metals Pb in soybean seeds. Liquid smoke of coconut shell pyrolysis has a specific gravity of 1.01 g/ml, pH 1.81, phenol 1.20%, carbonyl 5.75%, and acid compounds 8.40%. Soybean seeds soaked in coconut shell liquid smoke with various concentration of 0% (control/aquademineralisa); 12.5%; 25%; 50%; and 100% for 2 hours. Levels of heavy metals Pb was analyzed by Atomic Absorption Spectrophotometer. The changes of liquid smoke compounds such as pH, specific gravity, phenol, carbonyl, and acid was analyzed. The influence of the components of liquid smoke to the reduction of the heavy metals Pb was also analyzed. Model experiment was made from soybean seeds that have been contaminated by Pb (NO standard solutions with a concentration of 2 ppm. The results showed the higher the concentration of liquid smoke is used for soaking the decreased levels of heavy metals Pb is also getting bigger. The liquid smoke 100% (without 3)2dilution) gives the best reducing effect that can reduce heavy metal Pb 63.41%. An increase inpH, a decrease in phenol levels, decreased levels of the carbonyl, and decreased levels of the acid inliquid smokethat used for soaking indicatesthat the component has been successfully chelated the heavy metals Pb in soybean seeds.The phenol components of liquid smoke give the highest reducing effect 50.09%, followed by acid compounds 45.67%, and carbonyl compounds 42.21%.Keywords: Liquid smoke, Pb, carbonyl, acid, phenol, chelationABSTRAKTelah dilakukan penelitian tentang khelasi logam berat Pb pada biji kedelai dengan menggunakan asap cair tempurung kelapa. Tujuan penelitian adalah untuk evaluasi efektivitas asap cair dalam menurunkan kadar logam berat Pb pada biji kedelai, evaluasi perubahan komponen penyusun asap cair setelah digunakan untuk khelasi logam berat Pb, danevaluasi pengaruh dari komponen penyusun asap cair dalam menurunkan kadar logam Pb pada biji kedelai. Biji kedelai direndam dalam asap cair tempurung kelapa dengan variasi konsentrasi 0% (kontrol atau aquademineralisa); 12,5%; 25%; 50%; dan 100% selama 2 jam. Parameter yang diamati adalah penurunan kadar Pb pada biji kedelai, perubahan pH, senyawa fenol, karbonil, dan asam yang terdapat dalam asap cair setelah proses khelasi, dan pengaruh komponen senyawa fenol, karbonil, dan asam terhadap penurunan kadar logam Pb pada biji kedelai. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan tiga kali ulangan. Model percobaan dibuat dengan biji kedelai yang dicemari larutan Pb(NO3)konsentrasi 2 ppm. Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi asap cair yang digunakan untuk perendaman maka penurunan kadar logam berat Pb juga semakin besar. Asap cair dengan konsentrasi 100% (tanpa pengenceran) memberikan efek penurunan kadar logam berat Pb yang paling baik yaitu sebesar 63,41%. Adanya kenaikan pH, penurunan kadar fenol, penurunan karbonil, dan penurunan kadar asam pada asap cair yang telahdigunakan untuk perendaman menunjukkan bahwa komponen asap cair tersebut telah berhasil mengkhelat logam Pb pada biji kedelai. Komponen senyawa fenol memberikan efek penurunan kadar Pb yang paling tinggi yaitu 50,09%, diikuti oleh komponen asamsebesar 45,67%, dan komponen karbonil sebesar 42,21%.Kata kunci: Asap cair, Pb, karbonil, asam, fenol, khelasi  

scholarly journals Identifikasi Logam Berat dalam Biji Jagung Manis dan Kedelai pada Transisi Sistem Pertanian Organik

2019 ◽  
Vol 38 (4) ◽  
pp. 456
Author(s):  
Sapto Priyadi ◽  
Soelistijono ◽  
Setie Harieni ◽  
Kusriani Prasetyowati
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Sweet Corn ◽  
Block Design ◽  
Chelating Agent ◽  
Soybean Seeds ◽  
Cow Manure ◽  
Metal Analysis ◽  
Heavy Metal Analysis ◽  
Enrichment Coefficient

Heavy metals contaminants in land agriculture are environmental problems and to reduce the food safety, so that too needed for the research of Pb, Cd and Cu decrease absorption by plants using organic chelating agent i.e. substance of humus (humic and fulvic acid) in there manure. The research was done with completely block design, in Gagaksipat, Ngemplak, Boyolali; heavy metal analysis in manure, land and seeds use atomic absorption spectrophotometer-flame (AAS Jena Contr AA 300 German). It was aimed to identify contaminants of  Pb, Cd, and Cu in sweet corn and soybean seeds. The research treatment were doses of cow manure: 15, 20, 25, 30, 35, 40, 45 and 50 kg per hectare. The results showed that's enrichment coefficient (EC) Pb and Cu in sweet corn seeds had low accumulator plants categories, whereas the EC plumbum soybean seeds had low accumulator plants categories, whereas the EC copper soybean seeds had moderately accumulator plants categories, and EC cadmium in the sweet corn and soybeans seeds were undetectable. Exposure of Pb and Cd in corn sweet and soybean seeds were undetectable, while of Cu in sweet corn and soybean seeds 2.03 and 12.39 ppm respectively. Contaminant of Pb, Cd and Cu exposure in land sweet corn post-harvested were 30.99; undetectable and 60.58 ppm respectively. While Pb, Cd and Cu exposure in land soybean post harvested were 33.24; undetectable and 56.26 ppm respectively.

scholarly journals Ampelopsin Confers Endurance and Rehabilitation Mechanisms in Glycine max cv. Sowonkong under Multiple Abiotic Stresses

2021 ◽  
Vol 22 (20) ◽  
pp. 10943
Author(s):  
Elham Ahmed Kazerooni ◽  
Abdullah Mohammed Al-Sadi ◽  
Il-Doo Kim ◽  
Muhammad Imran ◽  
In-Jung Lee
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Glycine Max ◽  
Agronomic Traits ◽  
Antioxidant Activities ◽  
Protein Amino Acid ◽  
Soybean Seedlings ◽  
Glycine Max L ◽  
Chlorophyll Protein ◽  
Soybean Plants

The present investigation aims to perceive the effect of exogenous ampelopsin treatment on salinity and heavy metal damaged soybean seedlings (Glycine max L.) in terms of physiochemical and molecular responses. Screening of numerous ampelopsin concentrations (0, 0.1, 1, 5, 10 and 25 μM) on soybean seedling growth indicated that the 1 μM concentration displayed an increase in agronomic traits. The study also determined how ampelopsin application could recover salinity and heavy metal damaged plants. Soybean seedlings were irrigated with water, 1.5% NaCl or 3 mM chosen heavy metals for 12 days. Our results showed that the application of ampelopsin raised survival of the 45-day old salinity and heavy metal stressed soybean plants. The ampelopsin treated plants sustained high chlorophyll, protein, amino acid, fatty acid, salicylic acid, sugar, antioxidant activities and proline contents, and displayed low hydrogen peroxide, lipid metabolism, and abscisic acid contents under unfavorable status. A gene expression survey revealed that ampelopsin application led to the improved expression of GmNAC109, GmFDL19, GmFAD3, GmAPX, GmWRKY12, GmWRKY142, and GmSAP16 genes, and reduced the expression of the GmERF75 gene. This study suggests irrigation with ampelopsin can alleviate plant damage and improve plant yield under stress conditions, especially those including salinity and heavy metals.

scholarly journals pH-Regulated Carbon Dots Fluorescence Sensor Array Detection of Multiple Heavy Metal Ions Under Stepwise Prediction

2022 ◽  
Author(s):  
Zijun Xu ◽  
Yuying Liu ◽  
Jiao Chen ◽  
Xiyuan Wang ◽  
Hao Liu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Sensor Array ◽  
Chelating Agent ◽  
Fluorescence Sensor ◽  
Array Detection ◽  
Multiple Heavy Metals

Abstract As a large amount of heavy metals leaches into water sources from industrial effluents, heavy metal pollution has become an important factor affecting water quality. To enable the detection of multiple heavy metals, we constructed a pH-regulation fluorescence sensor array. Firstly, by adding a metal chelating agent as receptor, metal ions and carbon quantum dots (CDs) were connected to distinguish between Cr6+, Fe3+, Fe2+, and Hg2+ ions. Thus, the lack of affinity between the indicator functional groups and the analyte was solved. Secondly, by adjusting the pH environment of the solution system, an economical and simple array sensing platform is established, which effectively simplified the array construction. In this study, the SX-model was used in the field of fluorescence sensor array detection for metal ion recognition. Based on the strategy of stepwise prediction, combined with the classification and concentration models, the bottleneck of the unified model in previous studies was broken. This sensor array demonstrated sensitive detection of four heavy metal ions within a concentration range from 1 to 50 µM, with an accuracy of 95.45%. Moreover, it displayed the ability to efficiently identify binary mixed samples with an accuracy of 95.45%. Furthermore, metal ions in 15 real samples (lake water) were effectively discriminated with 100% accuracy. A chelating agent was used to improve the sensitivity of heavy metal ion detection and eventually led to high-precision prediction using the SX-model.

scholarly journals Reduction of Pb(II) Ion in Soybean Seeds (Glycine max) Using Corncob Liquid Smoke

2019 ◽  
Vol 292 ◽  
pp. 012003
Author(s):  
T Handayani ◽  
D Xyzquolyna ◽  
Y Pranoto ◽  
A Suratman
Keyword(s):  
Glycine Max ◽  
Soybean Seeds ◽  
Liquid Smoke

scholarly journals Overview of leaching remediation of heavy metal contamination in soil

2021 ◽  
Vol 245 ◽  
pp. 02005
Author(s):  
Cui Shuang ◽  
Han Qing ◽  
Zhang Tianyi
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Contaminated Soil ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Chelating Agent ◽  
Soil Leaching

The remediation methods of heavy metal contaminated soil can be divided into bioremediation, physical remediation and chemical remediation. Chemical remediation mainly includes soil leaching and chemical curing. There are two kinds of soil leaching remediation methods: in situ soil leaching remediation and ectopic leaching remediation. The eluent of heavy metals in soil includes inorganic eluent, chelating agent, surfactant and so on. Soil leaching can be applied to the remediation of contaminated soil alone or combined with other remediation methods.

Characterization of Waste into Liquid Smoke from Wood Powder and Coconut Shell (Cocos nucifera)

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Dewi Ermaya
Keyword(s):  
Specific Gravity ◽  
Cocos Nucifera ◽  
Coconut Milk ◽  
Coconut Shell ◽  
Wood Powder ◽  
Liquid Smoke ◽  
Carbon Compounds ◽  
Shell Waste

Liquid smoke is the result of condensation or condensation from the steam resulting from pyrolysis (combustion). From ingredients that contain lotsof lignin, cellulose, hemicellulose and carbon compounds which can be used as preservatives. Sawdust and coconut shell are sawdust, which is waste from the remains of refining wood on furniture and market waste from coconuts which are taken from coconut milk and oil. Both contain cellulose, hemicellulose, and lignin, these ingredients can be made into liquid smoke. The purpose of this study was to utilize sawdust and shell waste as liquid smoke which could be applied to the pickling and clumping industry. Making liquid smoke is done using a pyrolysis device. The liquid smoke formed is filtered. Then the yield was calculated and analyzed the quality of the liquid smoke, namely specific gravity, pH, and color. The results showed that the yield of sawdust was higher than coconut shell, namely 45.09%. And the resulting color is better sawdust.

INFLUENCE OF THE ECOLOGICAL STATE OF THE SEREPOK RIVER (VIETNAM) ON ACCUMULATION OF HEAVY METALS IN ORGANS OF FISH

2017 ◽  
pp. 98-105
Author(s):  
Ngo The Cuong ◽  
Tran Hoan Quoc ◽  
Svetlana Vasilievna Zolotokopova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
Industrial Areas ◽  
Industrial Regions ◽  
Cadmium Lead ◽  
Sarotherodon Galilaeus ◽  
Water Bottom

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

Using A Segmented Voltage Sweep Mode and A Gaussian Curve Fitting Method to Improve Heavy Metal Measurement System Performance

2012 ◽  
Vol 19 (2) ◽  
pp. 381-394
Author(s):  
José Pereira ◽  
Octavian Postolache ◽  
Pedro Girão
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Measurement System ◽  
Curve Fitting ◽  
System Performance ◽  
Redox Potentials ◽  
Voltage Sweep ◽  
Gaussian Curve ◽  
Fitting Method ◽  
Curve Fitting Method

Using A Segmented Voltage Sweep Mode and A Gaussian Curve Fitting Method to Improve Heavy Metal Measurement System PerformanceThis paper presents a voltammetric segmented voltage sweep mode that can be used to identify and measure heavy metals' concentrations. The proposed sweep mode covers a set of voltage ranges that are centered around the redox potentials of the metals that are under analysis. The heavy metal measurement system can take advantage of the historical database of measurements to identify the metals with higher concentrations in a given geographical area, and perform a segmented sweep around predefined voltage ranges or, alternatively, the system can perform a fast linear voltage sweep to identify the voltammetric current peaks and then perform a segmented voltage sweep around the set of voltages that are associated with the voltammetric current peaks. The paper also includes the presentation of two auto-calibration modes that can be used to improve system's reliability and proposes the usage of a Gaussian curve fitting of voltammetric data to identify heavy metals and to evaluate their concentrations. Several simulation and experimental results, that validate the theoretical expectations, are also presented in the paper.

COPPER AND ZINC INDUCED CHANGES IN SOYBEAN (Glycine max (L.) Merr.)

1970 ◽  
pp. 09
Author(s):  
K. SANKAR GANESH ◽  
P. SUNDARAMOORTHY
Keyword(s):  
Heavy Metals ◽  
Glycine Max ◽  
Aquatic Environment ◽  
Morphological Traits ◽  
Industrial Activities ◽  
Copper And Zinc ◽  
Glycine Max L ◽  
Zinc Concentrations ◽  
Induced Changes

Heavy metals are one of the most important pollutants released to the aquatic environment by the various industrial activities. The use of these wastewater for irrigation results accumulation of heavy metals in soil and plants. So, the present investigation deals with the various concentrations (0, 5, 10, 25, 50, 100, 200 and 300 mg/l) of copper and zinc on germination studies of soybean. The different concentrations of copper and zinc were used for germination studies. The seedlings were allowed to grow upto seven days. The studied morphological traits increased at 5 mg/l concentration and these parameters are gradually decreased with the increase of copper and zinc concentrations.

ASSESSMENT OF HEAVY METAL CONCENTRATION IN COCONUT WATER

1970 ◽  
pp. 07-10
Author(s):  
MdDidarul Islam, Ashiqur Rahaman, Aboni Afrose
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Concentration ◽  
Coconut Water ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Toxic Heavy Metal ◽  
Low Concentration ◽  
Wet Ashing ◽  
Aas Method

This study was based on determining concentration of essential and toxic heavy metal in coconut water available at a local Hazaribagh area in Dhaka, Bangladesh. All essential minerals, if present in the drinking water at high concentration or very low concentration, it has negative actions. In this study, fifteen samples and eight heavy metals were analyzed by Atomic Absorption Spectroscopy (AAS) method which was followed by wet ashing digestion method. The concentration obtained in mg/l were in the range of 0.3 to 1.5, 7.77 to 21.2, 0 to 0.71, 0 to 0.9, 0 to 0.2, 0.9 to 17.3, 0.1 to 0.9, 0 to 0.9 and 0 to 0.7 for Fe, Ni, Cu, Cd, Cr, Zn, Pb and Se respectively. From this data it was concluded that any toxic heavy metals like Cd, Cr, Pb and Ni exceed their toxicity level and some essential nutrients were in low concentration in those samples. 

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