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Strain improvement of aspergillus niger

Web28 Jan 2013 · Aspergillus niger strain URM 5162 showed the highest PG production. The results obtained indicated that the maximum endo- and exo-PG activities ... X.Y.; Zhang, … Aspergillus niger is cultured to facilitate the industrial production of many substances. Various strains of A. niger are used in the industrial preparation of citric acid (E330) and gluconic acid (E574); therefore, they have been deemed acceptable for daily intake by the World Health Organization. See more Aspergillus niger is a mold classified within the Nigri section of the Aspergillus genus. The Aspergillus genus consists of common molds found throughout the environment within soil and water, on vegetation, in fecal … See more A. niger is a strict aerobe; therefore, it requires oxygen to grow. The fungus can grow in a range of environmental conditions; it can grow at temperatures ranging from 6 to … See more There are two ways in which Aspergillus niger can be grown for industrial purposes: solid state fermentation (SSF) and submerged fermentation (SmF). SSF uses a solid substrate … See more Plant pathogen Aspergillus niger can cause black mold infections in certain legumes, fruits, and vegetables such as peanuts, grapes, and onions, leading to the fungus being a common food contaminant. This filamentous See more Aspergillus niger is included in Aspergillus subgenus Circumdati, section Nigri. The section Nigri includes 15 related black-spored species that may be confused with A. niger, including A. tubingensis, A. foetidus, A. carbonarius, and A. awamori. In 2004, a number of … See more Aspergillus niger has a genome consisting of roughly 34 megabases (Mb) organized into eight chromosomes. The DNA contains 10,785 See more A. niger produces a wide variety of secondary metabolites, some of which are mycotoxins called ochratoxins, such as ochratoxin A. Contamination by filamentous fungi, … See more

JoF Free Full-Text Evaluation of Aspergillus niger Six …

Web1 Oct 2015 · While, the mutant strain improved citric acid yield by 4.87 fold over the wild strain of A. niger, the improvement in optimized medium was 45.97 fold. Therefore, it can … Web1 May 1994 · Diploids of these improved strains were generated via parasexual recombination and were isolated on selective media by complementation of nitrate … charlotte bedford anu https://heritagegeorgia.com

Strain improvement of Aspergillus niger for the enhanced …

Web1 Oct 2015 · While, the mutant strain improved citric acid yield by 4.87 fold over the wild strain of A. niger, the improvement in optimized medium was 45.97 fold. Therefore, it can be concluded from the results obtained in this study that optimization of production of citric acid on low-cost agro waste (cassava peel supplemented with malted sorghum) is … WebAbstract. Combination of physical and chemical mutagenesis was used to isolate hyper secretory strains of Aspergillus niger NCIM 563 for phytase production. Phy WebThe enhancement of production of asperenone (Fig. 1), an inhibitor of lipoxygenase and human platelet aggregation from Aspergillus niger CFTRI 1105, was achieved by UV and … charlotte beauty supply store

Aspergillus Niger - an overview ScienceDirect Topics

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Strain improvement of aspergillus niger

SCREENING AND IMPROVEMENT OF LOCAL ISOLATES OF …

Web1 Mar 2024 · Strains belonging to Aspergillus section Nigri, including Aspergillus niger, are used for industrial production of citric acid from carbohydrates such as molasses and … Web6 May 2016 · This study presents degradation enhancement of pine needles by Aspergillus niger F 7 , isolated from soil. A modified alkali pretreatment [NaOH+H 2 O 2 (1M); ratio, …

Strain improvement of aspergillus niger

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Web28 Apr 2016 · The filamentous fungus Aspergillus niger is widely exploited as an important expression host for industrial production. The glucoamylase high-producing strain A. niger CICC2462 has been used as a host strain for the establishment of a secretion expression system. It expresses recombinant xylanase, mannase and asparaginase at a high level, … WebAspergillus niger can grow in gold-mining solutions containing cyano-metal complexes with gold, silver, copper, iron, and zinc. The fungus also plays a role in the solubilization of heavy-metal sulfides. [39] A. niger has also been shown to remediate acid mine drainage through biosorption of copper and manganese. [40] Toxicity [ edit]

WebStrain improvement of Aspergillus niger for the enhanced production of asperenone (PDF) Strain improvement of Aspergillus niger for the enhanced production of asperenone … Web12 May 2024 · To improve the quality of Ginkgo biloba leaves as biological feed additives, twelve Aspergillus niger strains were evaluated for their growth in the moisture ginkgo leaf meal media through solid-state fermentation. The results relating to flavor, flavonoids, enzymes, crude protein, and reducing sugars showed A. niger Gyx086 strain was capable …

WebTwelve fungal strains belonging to 9 different species of genera Aspergillus, Pencilillium, Trichoderma and Mucor were screened for extracellular lipase production. The most active lipase producing strain A. niger was selected for strain improvement by induced mutagenesis with UV light and N-methyl-N-nitro-N-nitrosoguanidine (NMG). Web1 Dec 2024 · In 1917, Aspergillus niger was found to have the capacity to produce citrate, a primary metabolite, that is now ubiquitously used as an acidulent (Cairns et al., 2024). In 1928, Penicillium rubens was found to produce penicillin, a secondary metabolite exhibiting antibacterial activity (Browne et al., 2013).

WebThe techniques used for strain improvement can be applied either separately or in different combinations [20]. Random mutagenesis is widely used in the food industry for the classical strain development reasons [21]. ... [32] Raju EVN, Divakar G, Swetha C, Geetha J, Satish P. Strain improvement of Aspergillus niger for glucoamylase by physical ...

Web20 Apr 2015 · Aspergillus niger is superior to other microorganisms for the commercial synthesis of citric acid because of its better production yield. It is easy to handle, can … charlotte bedding babies r usWeb26 Oct 2015 · A number of bacterial and fungal isolates from soil were screened for phosphorus solubilization. One fungal strain was found to be efficient phosphorus solubilizer in Pikovskaya medium. The selected strain was identified as Aspergillus niger based on morphological and microscopic studies. Some important cultural conditions … charlotte bed and breakfast troy ohioWebAspergillus niger is a fungal microbe of great industrial importance. This mold is used extensively in the production of citric acid and in the production of several enzymes such as amylases, pectinases, and proteases ( Godfrey and West, 1996 ). charlotte bed bug treatmentWebAspergillus niger was among the earliest microorganisms used for the conversion of prochiral sulfides to chiral sulfoxides, and a model ( Fig. 23) was proposed to account for … charlotte beer half marathonWeb1 Jan 2010 · The wild strain of Aspergillus niger IIB-31 was treated with chemical mutagens such as Ethyl methane sulphonate (EMS) and nitrous acid for this purpose. charlotte becomes a mermaidWebAspergillus niger was subjected to UV radiation and chemical mutagenesis to develop its hyper-producing mutants for enhanced citric acid production. Ethyl methane sulfonate (EMS) and Ethidium bromide (EB) were used for chemical mutagenesis of Aspergillus niger. UV, and chemically treated mutants of Aspergillus niger were identified by using 2-deoxy, … charlotte bed harvey normanWebAspergillus niger by sequential mutagencsis of the spores using nitrous acid, nilrosoquanidine and UV light. This mutant has been found to produce more citric acid … charlotte beevis hays