Characterization and bioremediation potential of marine Psychrobacter species

Abd-Elnaby, Hanan; Abou‐Elela, Gehan M.; Ghozlan, Hanan A.; Hussein, Halla; Sabry, Soraya A.

doi:10.1016/j.ejar.2016.04.003

Cited by 10 publications

(3 citation statements)

References 44 publications

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“…From days 14 to 28, Pseudomonas was the dominant bacteria in normal air‐packaged roast chicken, and the remaining bacteria were mainly Psychrobacter . Psychrobacter are aerobic and salt‐tolerant bacteria that grow in low‐temperature environments and widely exist in nature (Abd‐Elnaby, Abou‐Elela, Ghozlan, Hussein, & Sabry, ; Bergholz, Bakermans, & Tiedje, ). The conditions required for Psychrobacter growth were fully satisfied in normal air‐packaged roast chicken meat stored at 4 °C, which is possibly why Psychrobacter became a major microorganism, other than Pseudomonas , in roast chicken meat.…”

Section: Resultsmentioning

confidence: 99%

Dynamic changes of the bacterial communities in roast chicken stored under normal and modified atmosphere packaging

Huang

Guo

Hou

et al. 2020

Journal of Food Science

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This study systematically investigated the dynamic changes in bacterial communities in roast chicken in normal and modified atmosphere packaging (MAP). The samples were stored under normal atmosphere and 40%/60% CO 2 /N 2 MAP conditions for 28 days at 4°C. Changes in the number and type of microorganisms in roast chicken during storage were defined via cultural and 16S rDNA sequencing techniques. More Bacteroides, Chryseobacterium, Lactobacillus, and Acinetobacter than other bacteria were initially found in roast chicken. With normal packaging, Pseudomonas rapidly multiplied and became the main spoilage organism in roast chicken after 7 days, with a relative abundance of >90% of the entire bacterial flora. With MAP, due to the high salt content, Halomonas became the main spoilage organism in roast chicken by the middle of the storage period (14 days). Between days 21 and 28 of storage, Pseudomonas gradually became the main spoilage organism in roast chicken, but its relative abundance was much lower in MAP than in normal packaging, followed by Lachnospiraceae (NK4A136 group) and Altererythrobacter. Our research shows that the microbes in roast chicken mainly originated from the processing environment and operators. The combination of MAP with a low storage temperature could effectively improve the quality and safety of roast chicken meat.Practical Applications: This research showed the dynamic changes in the bacterial community of roast chicken stored under normal and modified atmosphere packaging (MAP). Microorganisms in roast chicken are mainly obtained from the processing environment and operators. Combining MAP with storage at low temperatures can effectively improve the quality and safety of roast chicken.

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Section: Resultsmentioning

confidence: 99%

Dynamic changes of the bacterial communities in roast chicken stored under normal and modified atmosphere packaging

Huang

Guo

Hou

et al. 2020

Journal of Food Science

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“…Antarctica has a high diversity of bacterial genera of various classes. These psychrotolerant and psychrophilic bacteria have been used for bioremediation because of their ability to maintain their activity under extreme Antarctic conditions (Abd-Elnaby et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Perchlorate-reducing bacteria from Antarctic marine sediments

Acevedo-Barrios

Rubiano-Labrador

Navarro-Narvaez

et al. 2022

Environ Monit Assess

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in perchlorate, whereas P. lactis had the lowest reduction. This study is significant as it is the first finding of P. cryohalolentis and. P. lactis on the Antarctic continent. In conclusion, these bacteria isolated from marine sediments on Antarctica offer promising resources for the bioremediation of perchlorate contamination due to their ability to degrade perchlorate, showing their potential use as a biological system to reduce perchlorate in highsalinity ecosystems.

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“…In a previous work (Abd-Elnaby et al, 2016), reported the isolation and identification of Psychrobcter species from work Mediterranean Sea, Egypt. The present work aimed to throw some light on the characterization of Pseudomonas species and their potentiality in metal accumulation and azo dye decolorization…”

Section: Introductionmentioning

confidence: 99%

Characterization and Bioremediation potential of marine psychrotolerant Pseudomonas spp. isolated from the Mediterranean Sea, Egypt.

Abd-Elnaby¹,

Abou‐Elela²,

Hussein³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

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Mediterranean Sea Genotype heavy metals azo-dyes Fourteen psychrotolerant Pseudomonas strains were isolated from seawater and sediments in the Mediterranean Sea, Egypt, using culturedependent techniques. Genotypic characterization for the fourteen strains was performed using 16S rDNA sequence analysis. The Pseudomonas strains were screened for some physiological, and biochemical characters, also resistance to some antibiotics and heavy metals were tested. Moreover, heavy metals bioaccumulation and azo-dyes removal were estimated. All tested Pseudomonas strains were able to resist and accumulate several metals (Pb 2 +, Cu 2+ and Cd 2+) with variable degrees, depending on bacterial strains and metal ion species. The highest tolerance (MICs) was observed with lead ions as all strains grew in presence of 750-800 ppm of lead, also, lead ions were easier to be bioaccumulate than the other metals, while cadmium bioaccumulation was relatively low with respect to the other two metals. Pseudomonas sp. H69A was the most potent strain in accumulation of the different metals. It supports the highest accumulated values of lead and cupper (2.95 and 1.837 mg /g fresh cells, respectively).The Pseudomonas strains were monitored for their ability to decolorize three different azo-dyes (fast orange, methanil yellow and acid fast red). All Pseudomonas strains achieved powerfull decolorization activity with the tested dyes. The maximum decolorization activities were recorded in fast orange. Pseudmonas sp. H26S recorded the highest decolorization percentages (91%) with fast orange and their biosorption capacity was 4.8 mg/g.

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Characterization and bioremediation potential of marine Psychrobacter species

Cited by 10 publications

References 44 publications

Dynamic changes of the bacterial communities in roast chicken stored under normal and modified atmosphere packaging

Dynamic changes of the bacterial communities in roast chicken stored under normal and modified atmosphere packaging

Perchlorate-reducing bacteria from Antarctic marine sediments

Characterization and Bioremediation potential of marine psychrotolerant Pseudomonas spp. isolated from the Mediterranean Sea, Egypt.

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