scholarly journals Study of Cadmium Bioaccumulation in Perna viridis through Food Pathway and Its Decontamination

2021 ◽  
Vol 4 (1) ◽  
pp. 17-22
Author(s):  
Octavin Exaudina ◽  
Wahyu Retno Prihatiningsih ◽  
Heny Suseno ◽  
Budiawan Budiawan
Keyword(s):  
Heavy Metals ◽  
Acetic Acid ◽  
Citric Acid ◽  
Marine Environment ◽  
Experimental Results ◽  
Perna Viridis ◽  
Cadmium Bioaccumulation

Seafood can be contaminated by heavy metals that contained in seawater and the source of food that marine biotas eats. Cadmium is one of the contaminants found in the marine environment. Bioaccumulation studies via foood pathway were complement previous studies through the seawater pathway. This study also made an effort to biologically decontaminate cadmium using acetic acid and citric acid. The experimental results showed the total bioaccumulation ability of Cd by Perna viridis was 74.01. Cd decontamination which accumulates in the Perna viridis decreases the level up to 21% 

scholarly journals Removal of heavy metals from green mussels (Perna viridis) using pineapple (Ananas comosus) solution as a source of citric acid

2021 ◽  
Vol 919 (1) ◽  
pp. 012041
Author(s):  
F Swastawati ◽  
S R Rizkirana ◽  
Romadhon ◽  
M Muniroh ◽  
Mulyono ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Citric Acid ◽  
Metal Content ◽  
Ananas Comosus ◽  
Perna Viridis ◽  
Green Mussel ◽  
Icp Ms ◽  
Removal Of Heavy Metals ◽  
Excessive Consumption ◽  
Ph Level

Abstract Green mussel is a type of shellfish that is widely consumed by humans. Excessive consumption of green mussels can be harmful to health because they are prone to contain heavy metals. One of the methods to reduce the heavy metal content of green mussels is to use citric acid in the pineapple solution. The Green mussel was soaked in pineapple solution for 30 min, 60 min and 90 min. The content of heavy metals such as Pb, Cd, and As was analyzed by ICP-MS. The results showed that after soaking green mussels in pineapple solution for 30 minutes, they reduced 85% Pb, 80,95% Cd, and 53,23% As. The duration of soaking green mussels in pineapple solution for 30 minutes overall had a better quality than soaking for 60 and 90 minutes, with a moisture content of 74,43 + 0,39 (%), protein content 15,21 + 0,35 (%), pH level 6,74 + 0,10, organoleptic with a confidence interval of 7,48<μ< 7,54.

scholarly journals Heavy metals in marsh clam (Polymesoda expansa) and green mussel (Perna viridis) along the northwest coast of Sabah, Malaysia

2017 ◽  
Author(s):  
Noor Diani Bambang Dwi Harsono ◽  
Julian Ransangan ◽  
Delta Jennety Denil ◽  
Kar Soon Tan
Keyword(s):  
Heavy Metals ◽  
Marine Environment ◽  
Health Risks ◽  
Local Population ◽  
Northwest Coast ◽  
Perna Viridis ◽  
Limit Set ◽  
Bivalve Species ◽  
Regular Monitoring ◽  
Green Mussel

Bivalves are known for their ability to accumulate contaminants such as heavy metals. This allows them to be widely used as bioindicator in monitoring of heavy metals in the marine environment. This study was conducted to determine the levels of heavy metals, namely Copper (Cu), Chromium (Cr), Nickel (Ni), Lead (Pb), Arsenic (As), Zinc (Zn) and Manganese (Mn) in marsh clams (Polymesoda expansa) and green mussels (Perna viridis) along the northwest coast of Sabah (Marudu Bay, Ambong Bay, and Mengkabong). The results showed that As (5.1 to 12.8 μg/g) and Mn (33.5 to 116.0 μg/g) concentrations in both marsh clams and green mussels collected from all the sampling stations along the northwest coast of Sabah were much higher than the permissible limit set by the Ministry of Health Malaysia and FAO/ WHO. Similarly, concentration of Zn (265.8 to 535.9 μg/g) in marsh clams from all the sampling areas and that of Cr (53.9 μg/g) in green mussel collected from Marudu Bay were also much higher than the permissible limits. The data also suggested that marsh clams accumulated higher Pb and Zn, whereas green mussels tend to contain higher concentrations of Cr, Cu and Ni. Since bivalves are an important protein source for the local population, a regular monitoring of all edible bivalve species should be conducted so that consumers can be advised about the toxicological and health risks due to consumption of bivalves.

scholarly journals Removal of Heavy Metals from a Contaminated Green Mussel [Perna Viridis (Linneaus, 1758)] Using Acetic Acid as Chelating Agents

2016 ◽  
Vol 7 ◽  
pp. 154-159 ◽  
Author(s):  
Nanik Heru Suprapti ◽  
Azis Nur Bambang ◽  
Fronthea Swastawati ◽  
Retno Ayu Kurniasih
Keyword(s):  
Heavy Metals ◽  
Acetic Acid ◽  
Chelating Agents ◽  
Perna Viridis ◽  
Green Mussel ◽  
Removal Of Heavy Metals

The impact of urban effluents on the coastal marine environment of Mediterranean islands

1995 ◽  
Vol 32 (9-10) ◽  
pp. 85-94 ◽  
Author(s):  
Michael O. Angelidis
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Marine Environment ◽  
Suspended Particle ◽  
Pollution Source ◽  
Mediterranean Islands ◽  
Coastal Marine Environment ◽  
Coastal Marine ◽  
The Impact ◽  
The City

The impact of the urban effluents of Mytilene (Lesvos island, Greece) on the receiving coastal marine environment, was evaluated by studying the quality of the city effluents (BOD5, COD, SS, heavy metals) and the marine sediments (grain size, organic matter, heavy metals). It was found that the urban effluents of Mytilene contain high organic matter and suspended particle load because of septage discharge into the sewerage network. Furthermore, although the city does not host important industrial activity, its effluents contain appreciable metal load, which is mainly associated with the particulate phase. The city effluents are discharged into the coastal marine environment and their colloidal and particulate matter after flocculation settles to the bottom, where is incorporated into the sediments. Over the years, the accumulation of organic matter and metals into the harbour mud has created a non-point pollution source in the relatively non-polluted coastal marine environment of the island. Copper and Zn were the metals which presented the higher enrichment in the sediments of the inner harbour of Mytilene.

scholarly journals Enhanced Electrokinetic Remediation for the Removal of Heavy Metals from Contaminated Soils

2021 ◽  
Vol 11 (4) ◽  
pp. 1799
Author(s):  
Claudio Cameselle ◽  
Susana Gouveia ◽  
Adrian Cabo
Keyword(s):  
Heavy Metals ◽  
Citric Acid ◽  
Organic Acids ◽  
Contaminated Soils ◽  
Electrokinetic Remediation ◽  
Deionized Water ◽  
Soil Specimen ◽  
Removal Of Heavy Metals ◽  
Ph Conditions ◽  
Neutral Metal

The electrokinetic remediation of an agricultural soil contaminated with heavy metals was studied using organic acids as facilitating agents. The unenhanced electrokinetic treatment using deionized water as processing fluid did not show any significant mobilization and removal of heavy metals due to the low solubilization of metals and precipitation at high pH conditions close to the cathode. EDTA and citric acid 0.1 M were used as facilitating agents to favor the dissolution and transportation of metals. The organic acids were added to the catholyte and penetrated into the soil specimen by electromigration. EDTA formed negatively charged complexes. Citric acid formed neutral metal complexes in the soil pH conditions (pH = 2–4). Citric acid was much more effective in the dissolution and transportation out of the soil specimen of complexed metals. In order to enhance the removal of metals, the concentration of citric acid was increased up to 0.5 M, resulting in the removal of 78.7% of Cd, 78.6% of Co, 72.5% of Cu, 73.3% of Zn, 11.8% of Cr and 9.8% of Pb.

Effect of pH, Acidulant, Time, and Temperature on the Growth and Survival of Listeria monocytogenes

1989 ◽  
Vol 52 (8) ◽  
pp. 571-573 ◽  
Author(s):  
KENT M. SORRELLS ◽  
DAVIN C. ENIGL ◽  
JOHN R. HATFIELD
Keyword(s):  
Antimicrobial Activity ◽  
Acetic Acid ◽  
Lactic Acid ◽  
Listeria Monocytogenes ◽  
Citric Acid ◽  
Hydrochloric Acid ◽  
Malic Acid ◽  
Incubation Temperature ◽  
Growth And Survival ◽  
Ph Values

The effect of different acids, pH, incubation time, and incubation temperature on the growth and survival of four strains of Listeria monocytogenes in tryptic soy broth was compared. Hydrochloric acid (HCl), acetic acid (AA), lactic acid (LA), malic acid (MA), and citric acid (CA) were used to acidify tryptic soy broth to pH values 4.4, 4.6, 4.8, 5.0, and 5.2 pH. Incubation times were 1, 3, 7, 14, and 28 d at 10, 25, and 35°C. The inhibition of L. monocytogenes in the presence of high acidity appears to be a function of acid and incubation temperature. Based on equal pH values, the antimicrobial activity is AA &gt; LA &gt; CA ≥ MA &gt; HCl at all incubation times and temperatures. When based on equal molar concentration, the activity appeared to be CA ≥ MA &gt; LA ≥ AA &gt; HCl at 35 and 25°C, and MA &gt; CA &gt; AA ≥ LA &gt; HCl at 10°C. Greatest antimicrobial activity occurred at 35°C. Greatest survival occurred at 10°C and greatest growth occurred at 25°C. Final pH of the medium was as low as 3.8 in HCl at 28 d. All strains grew well at pH values lower than the minimum previously reported (5.5–5.6).

scholarly journals Microbiological and Physicochemical Characterization of Small-Scale Cocoa Fermentations and Screening of Yeast and Bacterial Strains To Develop a Defined Starter Culture

2012 ◽  
Vol 78 (15) ◽  
pp. 5395-5405 ◽  
Author(s):  
Gilberto Vinícius de Melo Pereira ◽  
Maria Gabriela da Cruz Pedrozo Miguel ◽  
Cíntia Lacerda Ramos ◽  
Rosane Freitas Schwan
Keyword(s):  
Acetic Acid ◽  
Lactic Acid ◽  
Citric Acid ◽  
Dominant Species ◽  
Starter Culture ◽  
Physicochemical Characterization ◽  
Cocoa Bean ◽  
Small Scale ◽  
Content Type ◽  
Cocoa Bean Fermentation

ABSTRACTSpontaneous cocoa bean fermentations performed under bench- and pilot-scale conditions were studied using an integrated microbiological approach with culture-dependent and culture-independent techniques, as well as analyses of target metabolites from both cocoa pulp and cotyledons. Both fermentation ecosystems reached equilibrium through a two-phase process, starting with the simultaneous growth of the yeasts (withSaccharomyces cerevisiaeas the dominant species) and lactic acid bacteria (LAB) (Lactobacillus fermentumandLactobacillus plantarumwere the dominant species), which were gradually replaced by the acetic acid bacteria (AAB) (Acetobacter tropicaliswas the dominant species). In both processes, a sequence of substrate consumption (sucrose, glucose, fructose, and citric acid) and metabolite production kinetics (ethanol, lactic acid, and acetic acid) similar to that of previous, larger-scale fermentation experiments was observed. The technological potential of yeast, LAB, and AAB isolates was evaluated using a polyphasic study that included the measurement of stress-tolerant growth and fermentation kinetic parameters in cocoa pulp media. Overall, strainsL. fermentumUFLA CHBE8.12 (citric acid fermenting, lactic acid producing, and tolerant to heat, acid, lactic acid, and ethanol),S. cerevisiaeUFLA CHYC7.04 (ethanol producing and tolerant to acid, heat, and ethanol), andAcetobacter tropicalisUFLA CHBE16.01 (ethanol and lactic acid oxidizing, acetic acid producing, and tolerant to acid, heat, acetic acid, and ethanol) were selected to form a cocktail starter culture that should lead to better-controlled and more-reliable cocoa bean fermentation processes.

Leaching of heavy metals by citric acid from fly ash generated in municipal waste incineration plants

2011 ◽  
Vol 13 (2) ◽  
pp. 118-126 ◽  
Author(s):  
Kai Huang ◽  
Katsutoshi Inoue ◽  
Hiroyuki Harada ◽  
Hidetaka Kawakita ◽  
Keisuke Ohto
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Citric Acid ◽  
Waste Incineration ◽  
Municipal Waste ◽  
Municipal Waste Incineration
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