Production of Gluconic Acid by Some Local Fungi

Shindia, Ahmed A.; El-Sherbeny, Ghada A.; El-Esawy, A. E.; Sheriff, Y. M. M. M.

doi:10.4489/myco.2006.34.1.022

Cited by 18 publications

(10 citation statements)

References 23 publications

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“…Czapek-Dox medium has good properties for growth and high biomass production of the most fungi [17,18]. The presence of detergent in the culture medium affects the fungal biomass production according to the type of detergent, fungi species and the applied concentration, due to the influence of detergent on the growth and total dry weight biomass of fungus T. harzianum Rifai investigated in this study, as shown in Figure 1.…”

Section: Resultsmentioning

confidence: 89%

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

Jakovljević

Stojanovic

Vrvić

2015

CI&CEQ

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Article Highlights• T. harzianum isolated from industrial wastewater was tested to biodegradation of detergent • Chemical and biochemical parameters examined during fungal growth in submerged fermentation • The fungus decomposed 74.24% of detergent during 16 days which was confirmed by MBAS assay • Alkaline protease activity in presence of detergent was enhanced by 128% compared to control AbstractThe potential application of fungus Trichoderma harzianum Rifai in biodegradation of commercial detergent (Merix, Henkel, Serbia) was the focus of this study. The fungus was isolated from wastewater samples of the Rasina River, downstream from where the industrial wastewaters of the plant Henkel (Kruševac, Serbia) discharge into the river. The fungus was cultivated in liquid growth medium by Czapek with addition of detergent at a concentration of 0.3% during 16 days. Analysis of fermentation broth evaluated the chemical and biochemical changes of pH, redox potential, activity of alkaline and acid invertase as well as activity of alkaline protease. In addition, the influence of detergent on fungal growth and total dry weight biomass was determined. At the same time, detergent disappearance in terms of methylene blue active substances in the medium was measured. The detergent at a concentration of 0.3% influenced significant decrease of pH value and increase of redox potential. The detergent showed inhibitory effect on acid invertase activity and stimulatory effect on alkaline invertase and protease activity. The fungus decomposed about 74.24% of tested detergent during 16 days, but total dry weight biomass reduced about 20% in relation to control.

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Section: Resultsmentioning

confidence: 89%

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

Jakovljević

Stojanovic

Vrvić

2015

CI&CEQ

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“…In the presence of d -glucose, some fungi will produce gluconate and its acid form d -gluconic acid as the primary overflow metabolite under non-limiting growth on glucose (Shindia et al. 2006) (Fig.…”

Section: Resultsmentioning

confidence: 99%

The gold-standard genome of Aspergillus niger NRRL 3 enables a detailed view of the diversity of sugar catabolism in fungi

Pontes

Brandl

McDonnell

et al. 2018

Studies in Mycology

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The fungal kingdom is too large to be discovered exclusively by classical genetics. The access to omics data opens a new opportunity to study the diversity within the fungal kingdom and how adaptation to new environments shapes fungal metabolism. Genomes are the foundation of modern science but their quality is crucial when analysing omics data. In this study, we demonstrate how one gold-standard genome can improve functional prediction across closely related species to be able to identify key enzymes, reactions and pathways with the focus on primary carbon metabolism.Based on this approach we identified alternative genes encoding various steps of the different sugar catabolic pathways, and as such provided leads for functional studies into this topic. We also revealed significant diversity with respect to genome content, although this did not always correlate to the ability of the species to use the corresponding sugar as a carbon source.

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“…In addition to the presence of rare 6C sugar acids in meteorites, possibly significant is the relative abundances within this suite: Gluconic acid is not the most abundant (Table 1). A couple of factors, the ubiquitous nature and large relative abundance of glucose and gluconic acid in organisms (i.e., possible sample contaminants) combined with the ability of several microorganisms to oxidize glucose to gluconic acid (15), suggest that gluconic acid would dominate the meteoritic 6C acids if microbial contamination was significant (e.g., Fig. 5A, Lower).…”

Section: Significancementioning

confidence: 99%

Enantiomer excesses of rare and common sugar derivatives in carbonaceous meteorites

Cooper

Rios

2016

Proc. Natl. Acad. Sci. U.S.A.

123

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Biological polymers such as nucleic acids and proteins are constructed of only one-the D or L-of the two possible nonsuperimposable mirror images (enantiomers) of selected organic compounds. However, before the advent of life, it is generally assumed that chemical reactions produced 50:50 (racemic) mixtures of enantiomers, as evidenced by common abiotic laboratory syntheses. Carbonaceous meteorites contain clues to prebiotic chemistry because they preserve a record of some of the Solar System's earliest (∼4.5 Gy) chemical and physical processes. In multiple carbonaceous meteorites, we show that both rare and common sugar monoacids (aldonic acids) contain significant excesses of the D enantiomer, whereas other (comparable) sugar acids and sugar alcohols are racemic. Although the proposed origins of such excesses are still tentative, the findings imply that meteoritic compounds and/or the processes that operated on meteoritic precursors may have played an ancient role in the enantiomer composition of life's carbohydrate-related biopolymers.carbonaceous meteorites | sugar acids | enantiomer excesses | aldonic acids | polyols T he organic phase of carbonaceous meteorites comprises an insoluble "macromolecular" material (1-3), a complex mixture of largely uncharacterized solvent-extractable compounds (4), as well as discrete (identified) soluble organic compounds such as amino acids (3, 5) nucleobases (6, 7), and sugar derivatives (8). Analyses of this prebiotic organic carbon have been important in understanding its early Solar System synthesis and history: Characteristics of the organic phase suggest that it consists of both products and survivors of interstellar/presolar grain irradiation (9) and subsequent encapsulation and aqueous reactions (10, 11) in asteroids "parent bodies."Several identified meteoritic organic compounds are chiral: They can exist as two nonsuperimposable mirror image compounds called enantiomers, commonly designated D and L. To date, most chiral meteoritic compounds are reported to be racemic mixtures, i.e., their D and L enantiomers are equal in abundance (3). Racemic compounds are expected in nature because typical abiotic synthetic processes are (historically) thought to occur in the absence of asymmetric influences. Racemic mixtures are equated with pristine/uncontaminated abiotic samples when discussing meteoritic compounds. However, some meteoritic amino acids that are rare on Earth, i.e., they are not constituents of proteins and therefore less likely to be contaminants, have been confirmed to contain L enantiomer excesses (EE) (3, 12, 13). The origins of such excesses are unknown.Sugars, aldehydes, or ketones that contain multiple carbon hydroxyl (carbon alcohol) groups, are also chiral and were likely necessary for the origin of life. In the majority of extant biological sugars and derivatives ("polyols"), the D enantiomers are significantly more abundant than the L enantiomers (we will note exceptions in Results and Natural Occurrence of Relevant Sugar Derivatives and Enantiomers)...

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Production of Gluconic Acid by Some Local Fungi

Cited by 18 publications

References 23 publications

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

The potential application of fungus Trichoderma harzianum Rifai in biodegradation of detergent and industry

The gold-standard genome of Aspergillus niger NRRL 3 enables a detailed view of the diversity of sugar catabolism in fungi

Enantiomer excesses of rare and common sugar derivatives in carbonaceous meteorites

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