scholarly journals Pengaruh Antara Waktu Penyerapan Terhadap Konsentrasi Cemaran Pb pada Daun Tanaman Bunga Matahari (Helianthus annuus L)

2020 ◽  
Vol 2 (1) ◽  
pp. 46-50
Author(s):  
Purnama Dewi Rohana ◽  
Sartini Sartini ◽  
Abdul Karim

Sunflowers ((Helianthus annuus L) is a plant that has the ability to absorb metals in polluted soil or environment. This study aims to determine the ability of sunflower plants to absorb lead (Pb) in the soil. This research method use a Completely Randomized Design (CRD). Pb metal analysis was carried out by testing the lrvels using the Atomic Absorption Spectrophotometry (AAS) tool in the Chemical Laboratory (LABKES). The results showed that the highest absorption of Pb contamination in P2L2 treatment (2.0 ppm) as much as 5.04 ppm and the lowest absorption of metals in the treatment P1L1 (0.3 ppm) yielded as much as 0.52 ppm Pb metal content. From the results of these studies it can be concluded that sunflower plants can be used as phytoremediation pf Pb metal.

2021 ◽  
pp. 9-12
Author(s):  
Elda Soares ◽  
Abdul Hamid ◽  
Sarwoko Mangkoedihardjo

This study aimed at assessing the ability of sunflower to remediate zinc (Zn) impacted soils and the partitioning factors of Zn in soil-plants interactions. The research method used ex situ experiments using teddy bear sunflower seeds with 8 different treatments for each. This began with the preparation of the sample soil media on garden soil, and the seeding of sunflower seeds. This research was carried out for six months starting in August - December 2020, with Helianthus annuus plants with variations of the Zn. Various concentrations of Zn were applied, ranging from 50 ppm to 350 ppm. Laboratory analysis of Zn was carried out using the Atomic Absorption Spectrophotometry (AAS) method. The research results have revealed that roots have the ability to translocate more Zn than shoots, which suggests a phytoremediation mechanism. Sunflower plants are able to translocate Zn, which proves it reliable for phytoremediation of Zn-polluted soil.


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.


2018 ◽  
Vol 29 (1) ◽  
pp. 221
Author(s):  
Carlos Manuel Acosta Durán ◽  
Denisse Acosta-Peñaloza

The forest soil is the main substrate in the production of ornamental plants in pots, but its unlimited extraction causes a negative environmental impact. One alternative for replacing the forest soil is the garden waste, also called “green waste”. The aim of this study was to characterize and determine the optimal dose inclusion of green waste in order to use it as substrate component for begonia (Begonia spp.) container cultivation. This experiment was performed in Morelos State, Mexico, in 2015. Physical and chemical laboratory analysis, as well as an agronomic evaluation was performed. Different proportions (100%, 75%, 50%, and 25%) of green waste and forest soil, supplemented by a general substrate (coconut fiber and sawdust, 50/50, v/v) were mixed. A completely randomized design of eight treatments with eight replications was used. Green waste has similar physicochemical characteristics to forest soil. In the growth and development of begonia plants, the results were statistically equal, between treatments of 100% green waste use and forest soil use in six of the sixteen variables studied, and was superior to other treatments, in one of them. As a result of this study, we reached the following conclusion: that green waste is a material that has the necessary physicochemical characteristics for the Begonia spp. container cultivation, and that if its used as a substrate, it could replace the forest soil.


2015 ◽  
Vol 7 (3) ◽  
pp. 289-294
Author(s):  
Ojo Michael OSENI ◽  
Omotola Esther DADA ◽  
Adekunle Ajayi ADELUSI

This study investigated bioaccumulation factors and translocation factors of lead (Pb) by M. charantia so as to ascertain the bioaccumulation potentials of this medicinal plant. The elemental deposition of Pb were also assessed in order to compare the concentration of Pb present in plant tissues with the maximum permissible limits of 10 ppm recommended by WHO (1998, 2007). The experiment was a factorial combination of one heavy metal (Pb) at five levels of concentrations (0, 200, 400, 800 and 1,000 ppm) in a completely randomized design, replicated three times, with one medicinal plant species and two levels (0 and 9.4 g) of organic fertilizer (OBD- Plus). The seedlings were transplanted from nursery to experimental pots at the rate of one seedling per pot and grown for 10 weeks, after which the plants were harvested and dried for the analysis of Pb concentration both in soil and plant tissues using Atomic Absorption Spectrophotometry (AAS). The highest bioaccumulation factor for roots was 0.42 under fertilizer amendment, whereas the highest bioaccumulation factor for shoots was 0.26 under the same treatment. The highest transfer factor of M. charantia was 0.6. The results showed that M. charantia is a good phytostabilizer of Pb component. The highest lead deposition in the roots, which was 40% higher than in the shoots concentration, was above the safe limit; therefore this might pose health risks to human if consumed as herbal medicine.


bionature ◽  
2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Santriyono Santriyono ◽  
Muh. Jurhadi Muh. Jurhadi ◽  
Nurhaeda Nurhaeda

Abstract. The objective of the research was to find out the effect of adding egg white as the tough material to the salt content and cooking shrinkage of meatballs. The research was held on July to August 2018 in the laboratory of agriculture, animal farm, and fishery faculty, Muhammadiyah university of Parepare and continued analysis of salt content in the live stock chemical laboratory of animal farm Faculty, Hasanuddin Makassar University. The researcher used broiler meat, water, flavoring, garlic, pepper, salt, egg white and ice cube. The method used was a Completely Randomized Design with 4 treatments and 3 repetitions, that is T0 = without tough material, T1 = 15 grams of egg white, T2 = 43 grams of egg white, T3 = 74 grams of egg white. The research result showed that the addition of egg white as the tough material at different concentration have a real impact to the salt content and cooking shrinkage after being continued with the Duncan test it was found that there were differences and significantly affected the salt content and cooking shrinkage meatballs. Keywords: meatballs, chicken meat, egg white, salt content, cooking shrinkage


2020 ◽  
Vol 4 (1) ◽  
pp. 08-11
Author(s):  
Aqsa Butt ◽  
Shamim Umer ◽  
Rubina Altaf

A pot experiment was conducted in University of Agriculture Faisalabad to assess the effect of Cu and Zn uptake on morphological, physiological, biochemical and yield attributes of Helianthus annuus L.(Sunflower). Two hybrids FH-612 and FH-621 were used during this study. The experiment was laid out in a Completely Randomized Design (CRD) with four treatments and three replicates. After 20 days of germination the plants were subjected to different levels of ZnCl2, CuSO4 and with their combination. Three harvests were taken at an interval of seven days each to study the growth rate, morphological, physiological and biochemical attributes. At the maturity of crops final harvest was taken and yield attributes were recorded. Data of various attributes were statistically analyzed. It was observed that both the metals caused negative effect on growth rate as well as the other parameters studied. The effect was more pronounced in the metal combination treatment. Ultimately the yield was significantly reduced due to the effect of metals in both hybrids. However hybrid FH-612 revealed slight tolerance towards Cu and Zn toxicity as compared to its counterpart. FH- 621. Thus it was concluded that Cu and Zn affect the morphological, physiological and yield attributes of sunflower when applied in higher concentration.


Molekul ◽  
2019 ◽  
Vol 14 (2) ◽  
pp. 157
Author(s):  
Suherman Suherman ◽  
Wina Akmarina ◽  
Wulandari Sutiawan ◽  
Nurul Hidayat Aprilita ◽  
Mudasir Mudasir ◽  
...  

Indonesia’s target to be a new industrial country makes a wide chance in the developing of many industrial sectors. The main problem is the disruption of environmental balance due to poorly managed liquid waste released by the industry. Heavy metal such as chromium (Cr) is the typical pollutant generated from tannery industry in Indonesia. Toxicity test of desorbed chromium ions from polluted soil around tannery industry in Yogyakarta-Indonesia by using Brassica junceaand Helianthus annuus L.has been carried out. In this research, soil samples were dividedinto four sample points based on the distances from the waste water point sources. Metal content and some physico-chemical properties including ash content, total organic carbon, and cation exchange capacity were determined in this study. Furthermore, the chromium ions adsorption and desorption from polluted soils were investigated and measured by atomic adsorption spectrophotometry (AAS). Thus, ecotoxicity testsof soil eluates from desorption experiments wereperformed with Brassica junceaand Helianthus annuus L.The resultsshowed that sample III had the highestCr content at916mgkg–1.The adsorption isotherm of Cr ions into soils followed Langmuir isotherm with the highest maximum adsorption capacity value at 14.286 mg kg-1in the sample point IV (unpolluted soil). The optimum desorption of chromium occurred at pH 3. Toxicity test showed that Cr ions had toxic effect to Brassica junceaand Helianthus annuus L.


1994 ◽  
Vol 301 (1) ◽  
pp. 145-150 ◽  
Author(s):  
A Gibello ◽  
E Ferrer ◽  
M Martín ◽  
A Garrido-Pertierra

3,4-Dihydroxyphenylacetate 2,3-dioxygenase, an extradiol-ring-cleavage dioxygenase, has been purified from Klebsiella pneumoniae to homogeneity. The enzyme has an M(r) of 102,000 in its tetrameric form with an M(r) of 25,500 for each subunit. Unlike most other dioxygenases, the enzyme reported here contains Mg2+, as determined by atomic-absorption spectrophotometry and plasma emission metal analysis. The enzyme was shown to contain approx. 1 g-atom of Mg2+/mol of protein and we suggest an alpha 4 Mg2+ quaternary structure. This is the first report of a dioxygenase containing Mg2+ in its structure.


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