Biosynthesis, structural architecture and biotechnological potential of bacterial tannase: A molecular advancement

Jana, Arijit; Halder, Suman Kumar; Banerjee, Amrita; Paul, Tanmay; Pati, Biswamoy; Mondal, Keshab Chandra; Mohapatra, Pradeep Kumar Das

doi:10.1016/j.biortech.2014.02.017

Cited by 70 publications

(41 citation statements)

References 66 publications

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“…Moreover, tannins are responsible for the astringent and bitter taste of fruits, juices and wines which reduces the food intake. In addition, the consumption of large amounts of tannin is associated with development of some forms of cancer (Jana et al 2014). However, the consumption of low concentrations of tannin in feed is associated with an increase in nitrogen assimilation in ruminants showing higher growth rates and milk production (Belmares et al 2004;Aguilar et al 2007).…”

Section: Resultsmentioning

confidence: 99%

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Improving the nutritive value of olive pomace by solid state fermentation of Kluyveromyces marxianus with simultaneous production of gallic acid

Fathy

Mahmoud

Rashad

et al. 2018

Int J Recycl Org Waste Agricult

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Purpose Olive oil industry is a growing industrial sector in Mediterranean countries. Unfortunately, about 30-35% of total olive weight is discarded as olive pomace (OP), a highly environmental-polluting solid waste.OP is mostly used for composting and production of animal feed; nevertheless, the high oil content, phenolic compounds and fiber contents in addition to its low protein content represent major obstacles for both applications. So, the present study was conducted to evaluate the role of solid state fermentation (SSF) in OP using Kluyveromyces marxianus NRRL Y-8281 yeast on the chemical composition and tannin content of OP in a trial for its bioconversion into a value-added animal feed. Methods Chemical composition, nutritive and energetic values, tannin and gallic acid contents of unfermented and fermented olive pomace were investigated. Results The fermentation altered the chemical composition of OP, so that crude fiber was decreased by 8.56%, while crude protein, fat and carbohydrate contents were increased by 2.74, 2.63 and 3.57%, respectively. Moreover, the effect of fermentation on cell wall constituents, gross energy, digestible energy, total digestible nutrients and digestible crude protein was evaluated. Furthermore, HPLC analysis revealed that K. marxianus mediated fermentation of OP resulted in a sharp decrease in tannin content by 96.75% with 2.8 times increase in gallic acid concentration. Conclusion SSF of OP by K. marxianus does not only eliminate the environmental pollution resulting from its accumulation, but also presents a new eco-friendly valorization technique which leaves OP with an altered chemical composition allowing its use as animal feed or compost.

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Section: Resultsmentioning

confidence: 99%

“…In addition, they can be used for the treatment of poisoning caused by heavy metals due to their metal chelating capacity. Moreover, they are considered as potent antimicrobial agents (Jana et al 2014).…”

Section: Resultsmentioning

confidence: 99%

Improving the nutritive value of olive pomace by solid state fermentation of Kluyveromyces marxianus with simultaneous production of gallic acid

Fathy

Mahmoud

Rashad

et al. 2018

Int J Recycl Org Waste Agricult

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“…In addition, Better knowledge of enzyme stability under the operating conditions could help optimize the profitability of enzymatic processes. However, very few reports exist concerning thermodynamic parameters of fungal tannases [4,12,13]. Therefore, the aim of this work is to provide thermodynamic parameters of an intracellular tannase produced by A. oryzae.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, this enzyme has been proposed for use in environmental biotechnology, e.g., for the treatment of tannery effluents that are rich in poylphenols [4]. Owing to the wide applications of tannases reports on the purification and characterization of tannase has been published several times [5 -11].…”

Section: Introductionmentioning

confidence: 99%

Structural characterization, catalytic, kinetic and thermodynamic properties of Aspergillus oryzae tannase

Abdel–Naby¹,

El-Tanash

Sherief

2016

International Journal of Biological Macromolecules

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“…The benefits or the bizarre of tannins to animals mostly depend on species of host, quantity of consumption and physiology of the animals consuming them (Hagerman and Butler, 1991). Beneficial effects of tannins include the use of tannins as an astringent, anti diarrheal, diuretic, anti inflammatory, antiseptic and anti-hemorrhagic agents and also to alleviate the poisoning caused by heavy metals (Rodriguez-Duran et al, 2011) and have defense mechanism against fungi, bacteria and viruses (Sung et al, 2012;Jana et al, 2014). Tannins present in the diet of ruminants interact with the biological macromolecules to form complexes that interfere with the digestion process of the nutrients i.e., render the feed ingredients less digestible suggesting the deleterious effects of it.…”

Section: Introductionmentioning

confidence: 99%

Isolation, Identification and Molecular Characterization of Tannase Producing Klebsiella sp., from the Rumen of Migratory Goats and Sheep

Sahu¹,

Singh²,

Mal³

et al. 2015

Asian J. of Animal and Veterinary Advances

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Tannase, so called Tannin Acyl Hydrolase (TAH) (E.C.3.1.1.20) is one of the versatile biocatalyst with several industrial applications. It is solely responsible for the degradation of hydrolysable tannin thus surpassing the untoward effects of high concentration of tannin consumption in the gut of small ruminants. In the locality of Palampur the migratory goats and sheep have the unique property to resist excess amount of tannin consumed by them. This is because of their ruminal microflora. The concept of ruminal microflora can be used as Direct Fed Microbial (DFM) gaining momentum now-a-days. Thus in the present study attempts were made to explore new source of tannase producing microbes from the rumen of goats and sheep. Rumen samples were collected over several places of Palampur, then processed and finally the most tannin tolerable cultures were selected. Their genomic DNA were isolated and subjected for 16S rRNA sequencing to characterize the isolates. From the molecular characterization we identified Klebsiella sp. as a novel source of tannase from the rumen of these migratory animals. This is the first report of a Klebsiella sp. from the rumen of migratory small ruminants capable of degrading forage tannin.

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Biosynthesis, structural architecture and biotechnological potential of bacterial tannase: A molecular advancement

Cited by 70 publications

References 66 publications

Improving the nutritive value of olive pomace by solid state fermentation of Kluyveromyces marxianus with simultaneous production of gallic acid

Improving the nutritive value of olive pomace by solid state fermentation of Kluyveromyces marxianus with simultaneous production of gallic acid

Structural characterization, catalytic, kinetic and thermodynamic properties of Aspergillus oryzae tannase

Isolation, Identification and Molecular Characterization of Tannase Producing Klebsiella sp., from the Rumen of Migratory Goats and Sheep

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