Low molecular weight organic acids enhance the high molecular weight polycyclic aromatic hydrocarbons degradation by bacteria

Chemosphere ◽  
2019 ◽  
Vol 222 ◽  
pp. 132-140 ◽  
Author(s):  
Anithadevi Kenday Sivaram ◽  
Panneerselvan Logeshwaran ◽  
Robin Lockington ◽  
Ravi Naidu ◽  
Mallavarapu Megharaj
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Acids ◽  
High Molecular Weight ◽  
Aromatic Hydrocarbons ◽  
Low Molecular Weight ◽  
Polycyclic Aromatic

scholarly journals Using Low Molecular Weight Organic Acids to Enhance Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Current Understanding and Future Perspectives

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 446
Author(s):  
Lei Zhang ◽  
Jie Qiao ◽  
Haiyang Cui ◽  
Minghui Wang ◽  
Xiujuan Li
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Acids ◽  
Microbial Degradation ◽  
Aromatic Hydrocarbons ◽  
Current Understanding ◽  
Low Molecular Weight ◽  
Future Perspectives ◽  
Polycyclic Aromatic ◽  
The Impact

Polycyclic aromatic hydrocarbons (PAHs), an organic pollutant with persistence and carcinogenicity, are universally present in the environment and food processing. Biological approaches toward remediating PAHs-contaminated sites are a viable, economical, and environmentally friendly alternative compared to conventional physical and/or chemical remediation methods. Recently, various strategies relating to low molecular weight organic acids (LMWOAs) have been developed to enhance the microbial degradation of PAHs. However, the remaining challenge is to reveal the role of LMWOAs in the PAHs biodegradation process, and the latter limits researchers from expanding the application scope of biodegradation. In this mini-review, we summarized the current understanding of the impact of LMWOAs on (1) the physicochemical behavior of PAHs in the extracellular environment; (2) the interactions between PAHs and the microbial cell surface; and (3) the intracellular metabolization of PAHs. Future perspectives for this field are discussed in this review as well.

scholarly journals Distribution of polycyclic aromatic hydrocarbons in some selected tubers grown in farmlands in Alakahia and Eleme communities, Rivers, Nigeria

2017 ◽  
Vol 5 (1) ◽  
pp. 58
Author(s):  
Okereke Chioma Joy ◽  
Chinedu Okonkwo
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
High Molecular Weight ◽  
Aromatic Hydrocarbons ◽  
Low Molecular Weight ◽  
Polycyclic Aromatic ◽  
Rivers State

The present study investigated the level of polycyclic aromatic hydrocarbon (PAH) in three commonly consumed tubers grown in farmlands in two communities- Alakahia and Eleme, Rivers state, Nigeria. The total PAH concentrations in the tubers ranged from 2.94 ± 0.26 to 70.83 ± 1.56 -µg/kg. Pyrene was the predominant PAH in most of the tuber samples from Alakahia and Eleme communities. The PAH profile in the tuber samples were dissimilar at both communities when compared. The Low molecular weight PAH to High molecular weight PAH ratio (LMW-PAH/HMW-PAH) showed that the high molecular PAH were predominant in the tubers thus suggesting that the source of PAH in the tubers are of pyrogenic origin.

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