Enhanced degradation of caffeine by immobilized cells of Pseudomonas sp. in agar–agar matrix using statistical approach

Gummadi, Sathyanarayana N.; Ganesh, K.; Santhosh, Devarai

doi:10.1016/j.bej.2008.11.010

Cited by 23 publications

(10 citation statements)

References 22 publications

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“…A newer approach for degradation of caffeine to non-toxic product was found to be microbial and enzymatic treatment by Pseudomonas and Aspergillus species (Gummadi et al 2009, Gokulakrishnan et al 2007). Adsorption assisted Table 4 Theanine extraction from tea leaves…”

Section: Decaffeination or Caffeine Extraction From Teamentioning

confidence: 99%

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Banerjee

Chatterjee

2014

J Food Sci Technol

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Tea is a popular daily beverage worldwide. Modulation and modifications of its basic components like catechins, alkaloids, proteins and carbohydrate during fermentation or extraction process changes organoleptic, gustatory and medicinal properties of tea. Through these processes increase or decrease in yield of desired components are evident. Considering the varied impacts of parameters in tea production, storage and processes that affect the yield, extraction of tea biomolecules at optimized condition is thought to be challenging. Implementation of technological advancements in green chemistry approaches can minimize the deviation retaining maximum qualitative properties in environment friendly way. Existed extraction processes with optimization parameters of tea have been discussed in this paper including its prospects and limitations. This exhaustive review of various extraction parameters, decaffeination process of tea and large scale cost effective isolation of tea components with aid of modern technology can assist people to choose extraction condition of tea according to necessity.

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Section: Decaffeination or Caffeine Extraction From Teamentioning

confidence: 99%

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Banerjee

Chatterjee

2014

J Food Sci Technol

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“…Preparation of beads using immobilization matrices like CMC and sodium alginate were done following the methodology reported by Gummadi et al (2009) with minor modifications. Chitosan beads were prepared following the method of Barreto et al (2010) with minor modifications.…”

Section: Immobilization Of Candida Tropicalis In Different Matricesmentioning

confidence: 99%

Degradation of diesel oil by immobilized Candida tropicalis and biofilm formed on gravels

Chandran

Das

2011

Biodegradation

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The performance of diesel oil degradation by Candida tropicalis immobilized on various conventional matrices (sodium alginate, carboxyl methyl cellulose, chitosan) and biowaste materials (wheat bran, sawdust, peanut hull powder) was investigated using the method of entrapment and physical adsorption. The yeast species immobilized in wheat bran showed enhanced efficiency in degrading diesel oil (98%) compared to free cells culture (80%) over a period of 7 days. Copious amount of exopolysaccharides were also produced in the presence of diesel oil. The biofilm forming ability of C. tropicalis on PVC strips was evaluated using XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide) reduction assay and monitored by scanning electron microscopy and atomic force microscopy. Yeast biofilm formed on gravels showed 97% degradation of diesel oil over a period of 10 days. The potential use of the biofilms for preparing trickling filters (gravel particles), for attenuating hydrocarbons in oily liquid wastes before their disposal in the open environment is suggested and discussed. This is the first successful attempt for 'artificially' establishing hydrocarbon degrading yeast biofilm on solid substrates.

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“…RSM has been utilized successfully to optimize various parameters related to the bioprocess industry, in producing significant yield of various metabolites [20][21][22]. In the current study, screening and optimization of variables for xylitol production by Debaryomyces nepalensis NCYC 3413 using Plackett-Burman and RSM is reported.…”

Section: Introductionmentioning

confidence: 99%

A Statistical Approach to Optimize Xylitol Production by <i>Debaryomyces nepalensis</i> NCYC 3413 <i>in Vitro</i>

Kumdam¹,

Murthy²,

Gummadi³

2012

FNS

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Debaryomyces nepalensis NCYC 3413, halotolerant yeast isolated from rotten apple, was capable of utilizing components of hemicellulose hydrolysate such as glucose, galactose, mannose, xylose and arabinose. The organism utilizes xylose as a sole carbon source and produces xylitol. The Plackett-Burman design was applied to determine the specific medium components affecting xylitol production and found that xylose, K 2 HPO 4 , and ZnSO 4 were critical in augmenting xylitol production. These significant parameters were further optimized using response surface methodology. The optimum concentrations of xylose, K 2 HPO 4 , and ZnSO 4 were found to be 100 g/l, 10.6 g/l and 8.9 mg/l respectively. Under these optimal conditions the xylitol production increased from 27 g/l to 36 g/l with a yield of 0.44 g/g (57% increase in total yield). In addition, formation of the by product (glycerol) was decreased under optimal conditions.

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Enhanced degradation of caffeine by immobilized cells of Pseudomonas sp. in agar–agar matrix using statistical approach

Cited by 23 publications

References 22 publications

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Degradation of diesel oil by immobilized Candida tropicalis and biofilm formed on gravels

A Statistical Approach to Optimize Xylitol Production by <i>Debaryomyces nepalensis</i> NCYC 3413 <i>in Vitro</i>

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Enhanced degradation of caffeine by immobilized cells of Pseudomonas sp. in agar–agar matrix using statistical approach

Cited by 23 publications

References 22 publications

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Efficient extraction strategies of tea (Camellia sinensis) biomolecules

Degradation of diesel oil by immobilized Candida tropicalis and biofilm formed on gravels

A Statistical Approach to Optimize Xylitol Production by &lt;i&gt;Debaryomyces nepalensis&lt;/i&gt; NCYC 3413 &lt;i&gt;in Vitro&lt;/i&gt;

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A Statistical Approach to Optimize Xylitol Production by <i>Debaryomyces nepalensis</i> NCYC 3413 <i>in Vitro</i>