Prospects of Bacterial Tannase Catalyzed Biotransformation of Agro and Industrial Tannin Waste to High Value Gallic Acid

Dhiman, Sunny; Mukherjee, Gunjan

doi:10.1002/9781119593065.ch7

Cited by 5 publications

(3 citation statements)

References 73 publications

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“…Nevertheless, in spite of being a nonexpensive process, it generates as a byproduct 6.5 m 3 of liquid toxic waste for every 1 ton of GA produced (Wu et al 2017). As an alternative, the use of tannases or tannase-producing microorganisms, such as yeast, fungi and bacteria has been tested in many studies (Dhiman et al 2018;Dhiman and Mukherjee 2020); however, the toxicity of tannic acid to these microorganisms and low hydrolysis rates by isolated tannases still make these options less attractive than the prior in terms of cost-effectiveness (Dhiman et al 2018).…”

Section: Introductionmentioning

confidence: 99%

From degrader to producer: reversing the gallic acid metabolism of Pseudomonas putida KT2440

et al. 2022

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Gallic acid is a powerful antioxidant with multiple therapeutic applications, usually obtained from the acidic hydrolysis of tannins produced by many plants. As this process generates a considerable amount of toxic waste, the use of tannases or tannase-producing microorganisms has become a greener alternative over the last years. However, their high costs still impose some barriers for industrial scalability, requiring solutions that could be both greener and cost-effective. Since Pseudomonas putida KT2440 is a powerful degrader of gallic acid, its metabolism offers pathways that can be engineered to produce it from cheap and renewable carbon sources, such as the crude glycerol generated in biodiesel units. In this study, a synthetic operon with the heterologous genes aroG4, quiC and pobA* was developed and expressed in P. putida, based on an in silico analysis of possible metabolic routes, resulting in no production. Then, the sequences pcaHG and galTAPR were deleted from the genome of this strain to avoid the degradation of gallic acid and its main intermediate, the protocatechuic acid. This mutant was transformed with the vector containing the synthetic operon and was finally able to convert glycerol into gallic acid. Production assays in shaker showed a final concentration of 346.7 ± 0.004 mg L−1 gallic acid after 72 h.

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Section: Introductionmentioning

confidence: 99%

From degrader to producer: reversing the gallic acid metabolism of Pseudomonas putida KT2440

et al. 2022

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“…93 Bacterial tannases could potentially provide a solution to the production of GA from the large amounts of agro and industrial waste containing tannic acid. 98 Similarly to ferulic acid, immobilised laccases have been successful at providing efficient synthesis of GA. 99…”

Section: Anti-ageing Ingredientsmentioning

confidence: 99%

The beauty of biocatalysis: sustainable synthesis of ingredients in cosmetics

2022

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“…Rajeev et al [192] grafted chitosan and gallic acid (GA) as binders to Si-based anodes. GA is also a natural material that can be extracted from chestnuts and gallnuts [192][193][194]. They used GA to enhance the water solubility of chitosan and its adhesion to the active materials via hydrogen bonding.…”

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confidence: 99%

Review of the Mechanistic and Structural Assessment of Binders in Electrodes for Lithium-Ion Batteries

Yoon,

Behera,

Lim

et al. 2024

International Journal of Energy Research

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With the continual increase in CO2 levels and toward a sustainable society, developing high-performance lithium-ion batteries (LIBs) is crucial. A suitable electrode design is the key to enhancing the quality of battery cells (e.g., cycle retention characteristics and rate capabilities), and the binder plays an important role in providing sufficient adhesion between the active material, conductive agent, and current collector. Despite significant advances in the development of novel binder materials and solutions that can be employed as anode and cathode materials, careful investigations and summaries of the assessment methods for binder materials remain lacking. In this review, we examine the different analyses used to assess the quality of binder materials and how they help in assessing the quality of the electrode design. In addition, future perspectives on binder assessment are presented, which can be applied to future research directed toward binder development for advanced LIBs or post-LIBs.

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Prospects of Bacterial Tannase Catalyzed Biotransformation of Agro and Industrial Tannin Waste to High Value Gallic Acid

Cited by 5 publications

References 73 publications

From degrader to producer: reversing the gallic acid metabolism of Pseudomonas putida KT2440

From degrader to producer: reversing the gallic acid metabolism of Pseudomonas putida KT2440

The beauty of biocatalysis: sustainable synthesis of ingredients in cosmetics

Review of the Mechanistic and Structural Assessment of Binders in Electrodes for Lithium-Ion Batteries

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