Microplastics biodegradation by biofloc-producing bacteria: An inventive biofloc technology approach

Hossain, Shahadat; Manan, Hidayah; Shukri, Zuhayra Nasrin Ahmad; Othman, Rohisyamuddin; Kamaruzzan, Amyra Suryatie; Rahim, Ahmad Ideris Abdul; Khatoon, Helena; Minhaz, Tashrif Mahmud; Islam, Zahidul; Kasan, Nor Azman

doi:10.1016/j.micres.2022.127239

Cited by 19 publications

(4 citation statements)

References 151 publications

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“…iv, viii [ 57 , 42 , 58 , 59 ] Brachionidae Brachionus i,iii,iv [ 12 , 47 ] Brucellaceae Brucella v [ 57 ] Burkholderiaceae Burholderia vi [ 60 ] Enterobacteriaceae Cedecea v, vi [ 61 , 62 , 63 ] Centropyxidae Centropyixus i, iii, iv [ 50 ] Fusobacteriaceae Cetobacterium iii [ 64 , 65 ] Chaetoceraceae Chaetoceros ii, iv [ 66 , 67 , 68 ] Chlorellaceae Chlorella i; ii [ 55 , 69 , 69 ] Enterobacteriaceae Citrobacter v, vi [ 64 , 70 ] Lepadellidae Colurella ...…”

Section: Methodsmentioning

confidence: 99%

Swinging between the beneficial and harmful microbial community in biofloc technology: A paradox

Akange,

Aende,

Rastegari

et al. 2024

Heliyon

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Section: Methodsmentioning

confidence: 99%

Swinging between the beneficial and harmful microbial community in biofloc technology: A paradox

Akange,

Aende,

Rastegari

et al. 2024

Heliyon

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“…degrading PP by 7.3% (Habib et al, 2020), Bacillus paramycoides degrading PS by 11.12% (Pikoli et al, 2022), Lysinibacillus sp degrading PE by 9% (Jeon et al, 2021), and Alcaligene faecalis degrading PA-6 by 27% (Oulidi et al, 2022). Hossain et al, (2023) reported that these plastics degrading bacteria have floc-forming ability.…”

Section: Introductionmentioning

confidence: 94%

Biodegradability of polyethylene (PE), polypropylene (PP), and polystyrene (PS) microplastics by floc-forming bacteria, Bacillus cereus strain SHBF2 isolated from a commercial aquafarm

Hossain,

Shukri,

Waiho

et al. 2023

Preprint

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The ubiquitous proximity of the commonly used microplastic (MP) particles particularly polyethylene (PE), polypropylene (PP), and polystyrene (PS) poses a serious threat to the environment, and human health globally. Biological treatment as an environment-friendly approach to MPs pollution has recent interest when the bio-agent has beneficial functions in their ecosystem. This study aimed to utilize beneficial floc-forming bacteria B. cereus SHBF2 isolated from an aquaculture farm in reducing the MPs particles (PE, PP, and PS) from their environment. The bacteria were inoculated for 60 days in a media containing MPs particles as a sole carbon source. On different days of incubation (DOI), the bacterial growth analysis was monitored and the MPs particles were harvested to examine their weight loss, surface changes, and alterations in chemical properties. After 60 DOI, the highest weight loss was recorded for PE, 6.87 ± 0.92%, which was further evaluated to daily reduction rate (k), 0.00118 gday− 1, and half-life (t1/2), 605.08 ± 138.52 days. The OD value (1.38 ± 0.18 Abs.) indicated the higher efficiency of bacteria for PE utilization, whereas the colony-forming unit showed the bacteria was growing at a higher rate while utilizing PP (1.04 × 1011 CFU/mL). Biofilm formation, erosions, cracks, and fragments were evident when the surface changes were observed using scanning electron microscopy (SEM) which resulted in the formation of carbonyl and alcohol group due to the oxidation and hydrolysis were confirmed using Fourier transform infrared spectroscopic (FTIR) analysis. The results confirmed and indicated a higher degree of biodegradation in all of the selected MPs types. Thus, this study revealed that the floc-forming bacteria, B. cereus SHBF2 has a high potential to be used as an effective MPs degrading bacteria.

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“…In the bacterial degradation process, the production of carbon dioxide (CO 2 ) is an indication of the complete degradation of polymer substances by the bacteria under the optimum environmental factors (Lin et al, 2022). The mineralization is the last step of the bacterial biodegradation process that results in inorganic substances such as CO 2 , CH 4, and bacterial biomass (Hossain et al, 2023b). The following three (3) equations are the simplified mineralization stoichiometry of the used MPs particles through bacterial respiration.…”

Section: Co2 Evolutionmentioning

confidence: 99%

Biodegradation of polyethylene (PE), polypropylene (PP), and polystyrene (PS) microplastics by floc-forming bacteria, Bacillus cereus strain SHBF2, isolated from a commercial aquafarm

Hossain,

Shukri,

Waiho

et al. 2024

Environ Sci Pollut Res

Self Cite

View full text Add to dashboard Cite

The ubiquitous proximity of the commonly used microplastic (MP) particles particularly polyethylene (PE), polypropylene (PP), and polystyrene (PS) poses a serious threat to the environment, and human health globally.Biological treatment as an environment-friendly approach to counter MPs pollution has recent interest when the bioagent has beneficial functions in their ecosystem. This study aimed to utilize beneficial floc-forming bacteria B. cereus SHBF2 isolated from an aquaculture farm in reducing the MPs particles (PE, PP, and PS) from their environment. The bacteria were inoculated for 60 days in a media containing MPs particles as a sole carbon source. On different days of incubation (DOI), the bacterial growth analysis was monitored and the MPs particles were harvested to examine their weight loss, surface changes, and alterations in chemical properties. After 60 DOI, the highest weight loss was recorded for PE, 6.87 ± 0.92%, which was further evaluated to daily reduction rate (k), 0.00118 gday -1 , and half-life (t 1/2 ), 605.08 ± 138.52 days. The OD value (1.74 ± 0.008 Abs.) indicated the higher efficiency of bacteria for PP utilization, and so for the colony formation per define volume (1.04 × 10 11 CFU/mL). Biofilm formation, erosions, cracks, and fragments were evident during the observation of the tested MPs using the scanning electron microscope (SEM). The formation of carbonyl and alcohol group due to the oxidation and hydrolysis by SHBF2 strain were confirmed using the Fourier transform infrared spectroscopic (FTIR) analysis. Additionally, the alterations of pH and CO 2 evolution from each of the MPs type ensures the bacterial activity and mineralization of the MPs particles. The findings of this study have confirmed and indicated a higher degree of biodegradation for all of the selected MPs particles. B. cereus SHBF2, the floc-forming bacteria used in aquaculture, has demonstrated a great potential for use as an efficient MPs degrading bacterium in the biofloc farming system in the near future to guarantee a sustainable green aquaculture production.

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Microplastics biodegradation by biofloc-producing bacteria: An inventive biofloc technology approach

Cited by 19 publications

References 151 publications

Swinging between the beneficial and harmful microbial community in biofloc technology: A paradox

Swinging between the beneficial and harmful microbial community in biofloc technology: A paradox

Biodegradability of polyethylene (PE), polypropylene (PP), and polystyrene (PS) microplastics by floc-forming bacteria, Bacillus cereus strain SHBF2 isolated from a commercial aquafarm

Biodegradation of polyethylene (PE), polypropylene (PP), and polystyrene (PS) microplastics by floc-forming bacteria, Bacillus cereus strain SHBF2, isolated from a commercial aquafarm

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