Optimization of Growth Conditions of Acinetobacter sp. Cr1 for Removal of Heavy Metal Cr Using Central Composite Design

Pang, Bingbing; Lv, Lijun; Pang, Caoping; Ye, Fengcai; Shang, Changhua

doi:10.1007/s00284-020-02278-8

Cited by 7 publications

(3 citation statements)

References 36 publications

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“…RSM is a sophisticated method to optimize the process. In our previous studies, RSM was successfully used to optimize the processes including the removal of heavy metal chromium, carotenoid extraction, and culture medium composition. − The solid yield and lignin removal were greatly affected by the NaOH concentration and time in this study (Figures and ). The optimal NaOH pretreatment conditions were a NaOH concentration of 1%, a time of 60 min, and a solid-to-liquid ratio of 1:15.…”

Section: Discussionmentioning

confidence: 69%

Optimizing the Conditions of Pretreatment and Enzymatic Hydrolysis of Sugarcane Bagasse for Bioethanol Production

Ruan,

Wu,

et al. 2024

ACS Omega

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Section: Discussionmentioning

confidence: 69%

Optimizing the Conditions of Pretreatment and Enzymatic Hydrolysis of Sugarcane Bagasse for Bioethanol Production

Ruan,

Wu,

et al. 2024

ACS Omega

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“…Ochrobactrum strains have been shown to alleviate Cd toxicity in spinach ( Spinacia oleracea L.) [ 110 ] and rice ( Oryza sativa ) [ 111 ] and adsorb Cd and Cr in their cell wall due to exopolysaccharides content [ 112 , 113 , 114 ]. Similarly, some Acinetobacter strains have been applied to improve the removal efficiency of heavy metals such as Cr [ 115 , 116 , 117 ], while Alcaligenes has been reported to be tolerant to Cd, Cu, Ni, Zn, and Cr [ 118 , 119 ].…”

Section: Bacteria Associated With the Rhizosphere Of Typha ...mentioning

confidence: 99%

Bacterial Communities Associated with the Roots of Typha spp. and Its Relationship in Phytoremediation Processes

et al. 2023

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Heavy metal pollution is a severe concern worldwide, owing to its harmful effects on ecosystems. Phytoremediation has been applied to remove heavy metals from water, soils, and sediments by using plants and associated microorganisms to restore contaminated sites. The Typha genus is one of the most important genera used in phytoremediation strategies because of its rapid growth rate, high biomass production, and the accumulation of heavy metals in its roots. Plant growth-promoting rhizobacteria have attracted much attention because they exert biochemical activities that improve plant growth, tolerance, and the accumulation of heavy metals in plant tissues. Because of their beneficial effects on plants, some studies have identified bacterial communities associated with the roots of Typha species growing in the presence of heavy metals. This review describes in detail the phytoremediation process and highlights the application of Typha species. Then, it describes bacterial communities associated with roots of Typha growing in natural ecosystems and wetlands contaminated with heavy metals. Data indicated that bacteria from the phylum Proteobacteria are the primary colonizers of the rhizosphere and root-endosphere of Typha species growing in contaminated and non-contaminated environments. Proteobacteria include bacteria that can grow in different environments due to their ability to use various carbon sources. Some bacterial species exert biochemical activities that contribute to plant growth and tolerance to heavy metals and enhance phytoremediation.

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“…Recently, Acinetobacter sp. Cr1 strain was found to be effective for removal of Cr(VI) [136]. Plants can also be used for phytoremediation by absorbing Cr from soil into plant organs [137].…”

Section: Chromium Remediationmentioning

confidence: 99%

The Double Face of Metals: The Intriguing Case of Chromium

et al. 2021

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Chromium (Cr) is a common element in the Earth’s crust. It may exist in different oxidation states, Cr(0), Cr(III) and Cr(VI), with Cr(III) and Cr(VI) being relatively stable and largely predominant. Chromium’s peculiarity is that its behavior relies on its valence state. Cr(III) is a trace element in humans and plays a major role in glucose and fat metabolism. The beneficial effects of Cr(III) in obesity and types 2 diabetes are known. It has been long considered an essential element, but now it has been reclassified as a nutritional supplement. On the other hand, Cr(VI) is a human carcinogen and exposure to it occurs both in occupational and environmental contexts. It induces also epigenetic effects on DNA, histone tails and microRNA; its toxicity seems to be related to its higher mobility in soil and swifter penetration through cell membranes than Cr(III). The microorganisms Acinetobacter sp. Cr1 and Pseudomonas sp. Cr13 have been suggested as a promising agent for bioremediation of Cr(VI). This review intends to underline the important role of Cr(III) for human health and the dangerousness of Cr(VI) as a toxic element. The dual and opposing roles of this metal make it particularly interesting. An overview of the recent literature is reported in support.

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Optimization of Growth Conditions of Acinetobacter sp. Cr1 for Removal of Heavy Metal Cr Using Central Composite Design

Cited by 7 publications

References 36 publications

Optimizing the Conditions of Pretreatment and Enzymatic Hydrolysis of Sugarcane Bagasse for Bioethanol Production

Optimizing the Conditions of Pretreatment and Enzymatic Hydrolysis of Sugarcane Bagasse for Bioethanol Production

Bacterial Communities Associated with the Roots of Typha spp. and Its Relationship in Phytoremediation Processes

The Double Face of Metals: The Intriguing Case of Chromium

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