Decolourization of Textile effluent using Mutant strains of Aspergillus niger and Penicillium spp

2016 ◽  
Vol 3 (1) ◽  
pp. 001-011
Author(s):  
U.Z. Umar ◽  
◽  
K. Sharma Anil ◽  
M.B. Tijjani ◽  
Keyword(s):  
Aspergillus Niger ◽  
Textile Effluent ◽  
Mutant Strains ◽  
Penicillium Spp

scholarly journals Microbial Contamination in Some Commercial Biscuits in Baghdad City

2010 ◽  
Vol 7 (2) ◽  
pp. 867-875
Author(s):  
Baghdad Science Journal
Keyword(s):  
Staphylococcus Aureus ◽  
Aspergillus Niger ◽  
Bacillus Cereus ◽  
Microbial Contamination ◽  
Local Markets ◽  
Esherichia Coli ◽  
Bacteria And Fungi ◽  
Penicillium Spp ◽  
Number Of Bacteria

This study has been conducted to know the level of microbial ( bacteria and fungi) contamination in 5 types of biscuits from local markets of Baghdad city. Fifty samples (ten sample for each kind of biscuit) were studed,Two are local,others are Iranian,Turkish,and Holandies. The following results have been achieved :1. The highest number of bacteria was 21.6×103 cell/g in Iranian biscuit while the lowest number was 14.3× 103 cell/g in local biscuit No.1 . The highest number of fungi was 16×103 colony/g and the lowest number was 5.3×103 colony/g in the Iranian and the local biscuit No.1,respectively.2. Staphylococcus aureus was the major bacteria appeared at highest level of 100% in Turkish biscuit. The lowest percentage was found in Hollandian biscuit with 37.28%. Bacillus cereus was the major bacteria with a percentage of 100% in local biscuit No.2 where as the lowest was in local biscuit No,1with a percentage of 20.93%, while it was not existed in Turkish biscuit. Esherichia coli was found in Hollandian biscuit at highest rate of 38.98% , the lowest value was appeared in Iranian biscuit with 28.16% while it was not exited in local biscuit No.1,2 and Turkish biscuit.3. Aspergillus niger appeared at highest level of 66.66% in Hollandian biscuit, while was the lowest 37.73% in local biscuit No.1 and not existed in local biscuit No.2, The highest value of A.flavus was 69.76% in local biscuit No.2 and the lowest value in Hollandian biscuit in percentage 8.33%. It has not appeared in Iranian and Turkish biscuit. The A. terreus appeared at highest rate in Turkish biscuit with 33.33% , the lowest value was in local biscuit No.2 at 11.62% and was not appeared in Hollandian biscuit.The Penicillium spp. Was found at highest rate 25% in Hollandian biscuit , the lowest value of 9.52% was appeared in Turkish biscuit.

scholarly journals Assessment of Microplastic Degrading Potential of Fungal Isolates from an Estuary in Rivers State, Nigeria

2021 ◽  
pp. 11-19
Author(s):  
Janet Olufunmilayo Williams ◽  
Nosayame Thomas Osahon
Keyword(s):  
Weight Loss ◽  
Aspergillus Niger ◽  
Industrial Development ◽  
Future Research ◽  
Microsporum Canis ◽  
Fusarium Spp ◽  
Fungal Isolates ◽  
Tremendous Importance ◽  
Rivers State ◽  
Penicillium Spp

The potential of fungi as bio degraders of micro plastic particles was assessed using standard microbiological and Fourier transformed Infra-Red (FTIR) spectroscopic analysis methods. The highest mean Total Heterotrophic fungal (THF) count of 4.24x104 cfu/ml was obtained with the least THF (2.72x104 cfu/ml) recorded during the dry season. Mean hydrocarbon Utilizing Fungal (HUF) count was highest (1.78x104 cfu/ml) during the wet period while the least HUF count (1.46x104 cfu/ml) was recorded during the dry period. Spectra of FTIR showed that the water contained microplastic particles in these proportions; polyethylene of low density (LDPE) 0.01%, 0.11% protein, 0.15% polystyrene, 0.37% polyamide, 1.14% cellulose, 1.21% polyurethane, 1.90% polyvinyl chloride, 3.11% polyester and 92% polypropylene, respectively. Species of fungi identified were Aspergillus niger, Penicillium spp., Rhizopus spp., Mucor spp., Aspergillus nidulans, Fusarium spp., Microsporum canis, and Aspergillus fumigatus. Among the fungal isolates, A. niger and A. fumigatus were most active in degrading the micro plastic (polypropylene) with mean % weight loss of 71.09% and 53.09%, respectively while the least active was Penicillium spp. with a mean % weight loss of 28.64% during the study period. The order of degradation was Aspergillus niger > A. fumigatus > A. nidulans > Fusarium spp. > Rhizopus spp. > Microsporum canis > Mucor spp. > Penicillium spp. The potential to degrade micro plastic particles by these fungi can be harnessed. The foremost active fungi degrading potentials are as follows: A. niger (71.1%) and A. fumigatus (53.1%). The study has shown that isolates of fungi from Ohiakwu River in Nigeria possess the ability to degrade micro plastic (polypropylene) particles. Therefore, this research is of tremendous importance for industrial development and additionally for future research purposes.

scholarly journals EFFECT OF GROUNDNUT CAKE AND SOYA BEANS ON ENHANCED CITRIC ACID PRODUCTION FROM PAWPAW AND ORANGE PEEL BY MUTANTS OF ASPERGILLUS NIGER

2019 ◽  
Vol 17 (1) ◽  
pp. 147-155
Author(s):  
H. T. BALOGUN-ABIOLA ◽  
S. O. KAREEM ◽  
R. B. AFOLABI ◽  
O. A. AKINLOYE
Keyword(s):  
Citric Acid ◽  
Solid State ◽  
Aspergillus Niger ◽  
Mutant Strain ◽  
Fermentation Process ◽  
Carbon Sources ◽  
Orange Peel ◽  
Nitrogen Sources ◽  
Groundnut Cake ◽  
Mutant Strains

This present study was concerned with the biosynthesis of citric acid (CA) with mutant strain of Aspergillus niger using pawpaw and orange peel as substrates by solid state fermentation process. The A. niger strain isolated from spoilt orange was identified, screened for CA production on Czapek-Dox Agar and subjected to mutation by ethidium bromide. The effect of carbon sources, nitrogen sources and substrates were also determined.  Among the mutant strains, A. niger PJ-02 A120 was found to be the best mutant that produced citric acid (65.00±0.58f) after 48 hours in Vogel’s medium. The effects of carbon sources (sucrose and glucose) on CA production from each substrate (orange and pawpaw peel) using mutant A. niger PJ-02 was determined and sucrose, the best carbon source was combined with two the nitrogen sources (groundnut cake and soyabeans) to determine the most suitable supplement for CA production. Groundnut cake enhances the production of citric acid while soyabeans was inhibitory. Citric acid was further produced in pawpaw peel and orange peel medium containing sucrose (5 %) groundnut cake (2 %), methanol (1.5 %) and the mutant strain. The orange peel substrates yielded 112.07g/kg of CA while 107.17g/kg was recorded for pawpaw peel when fermented for 5 days at 30°C. The Production of citric acid with mutant Aspergillus niger proved better with orange peel than pawpaw peel when optimized with alcohol.      

scholarly journals Avaliação de óleos essenciais de condimentos sobre o desenvolvimento micelial de fungos associados a produtos de panificação

2004 ◽  
Vol 28 (3) ◽  
pp. 685-690 ◽  
Author(s):  
Sára Maria Chalfoun de Souza ◽  
Marcelo Cláudio Pereira ◽  
Caroline Lima Angélico ◽  
Carlos José Pimenta
Keyword(s):  
Aspergillus Niger ◽  
Allium Sativum ◽  
Thymus Vulgaris ◽  
Rhizopus Sp ◽  
Penicillium Spp

Este trabalho foi realizado com o objetivo de avaliar o efeito "in vitro" de óleos essenciais dos condimentos alho (Allium sativum L.), canela (Cinnamomum burnannil Meissn), cravo-da-índia (Caryophillus aromaticus L.) e tomilho (Thymus vulgaris L.), que foram adicionados aos meios de cultura (BDA E CYA20S). Os óleos foram extraídos pela técnica de arraste a vapor e testados nas concentrações de 500; 1000; 1500 e 2000 mg/mL, exceto o cravo, que foi testado nas concentrações de 200; 400; 600 e 800 mg/mL. Como culturas-teste, foram utilizados os fungos Rhizopus sp.; Penicillium spp.; Eurotium repens e Aspergillus niger, isolados de pães envelhecidos. O óleo essencial da canela inibiu completamente o desenvolvimento dos fungos testados. Os óleos de tomilho e alho tiveram o mesmo efeito nas concentrações mais altas. O cravo inibiu o desenvolvimento dos fungos Aspergillus niger, Rhizopus sp. e Eurotium repens com a concentração de 600 mg/mL e do fungo Penicillium spp. com a de 800 mg/mL.

Degradation of ochratoxin A by supernatant and ochratoxinase of Aspergillus niger W-35 isolated from cereals

2020 ◽  
Vol 13 (2) ◽  
pp. 287-298
Author(s):  
M. Zhao ◽  
X.Y. Wang ◽  
S.H. Xu ◽  
G.Q. Yuan ◽  
X.J. Shi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Food Safety ◽  
Aspergillus Niger ◽  
Ochratoxin A ◽  
Promising Strategy ◽  
Ochratoxin Α ◽  
Food And Feed ◽  
Commercial Feeds ◽  
Penicillium Spp

Ochratoxin A (OTA) is a mycotoxin produced by Aspergillus spp. and Penicillium spp. and poses a threat to food safety. Biodegradation may be a promising strategy for reducing the OTA contamination in the future. In this study, Aspergillus niger strain W-35 was isolated from cereals and studied for its ability to degrade OTA. Results showed that the supernatant of W-35 could degrade OTA both in vitro and in commercial feeds after incubation at 37 °C for 12 h by 78.0 and 37.0%, respectively. Ochratoxin α (OTα) was assayed as a degradation product by HPLC-FLD. Furthermore, an enzyme specific for OTA degradation (ochratoxinase, OTase) obtained from W-35 was successfully expressed in Escherichia coli BL21, and degraded OTA at a rate of 85.1% for 12 h. These results indicated that this OTA degradation is enzymatic and that the responsible enzyme is extracellular OTase. Reliable degradation of OTA has the potential for wide-ranging applications in the food and feed industries.

scholarly journals An investigation into the microbial infestation of poultry feeds

2016 ◽  
Vol 13 (1) ◽  
pp. 79-86
Author(s):  
MM Rahman ◽  
MS Islam ◽  
MZ Alam ◽  
M Ashrafuzzaman
Keyword(s):  
Aspergillus Niger ◽  
Moisture Content ◽  
Aspergillus Flavus ◽  
Fungal Species ◽  
Fusarium Spp ◽  
Fungal Population ◽  
Fungal Flora ◽  
Poultry Feeds ◽  
Penicillium Spp ◽  
Feed Samples

The Experiments were carried out during the period of July 2001 to December 2002. Infestation of poultry feeds by fungi and aflatoxins content in feeds were determined. Ten feed samples were collected from ten different farms located in three different areas of Bangladesh. Five different fungal species belonging four genera were detected which were Aspergillus flavus, Aspergillus niger, Fusarium spp, Rhizopus stolonifer and Penicillium spp. Among them Aspergillus flavus and Aspergillus niger were found in all the feed samples and the rest were occasionally found. Effect of storage and moisture content of feeds were studied for determining the influence on occurrence of fungal flora in feeds. Higher the storing period of feed along with higher moisture content resulted superior incidences of fungal population in stored feeds. Studied on storage practice with 4 duration of F1 sample revealed that the presence of aflatoxins were 30.52ppb, 33.36ppb, 37.32ppb and 48.35ppb of 5, 10, 15 and 20 days after production of feeds, respectively.J. Bangladesh Agril. Univ. 13(1): 79-86, June 2015

scholarly journals Antifungal Activity of Pomegranate and Oak Galls Extracts Against Penicillium spp. and Aspergillus niger

2011 ◽  
Vol 22 (3) ◽  
pp. 1-10
Author(s):  
Abdulilah S. Ismaeil ◽  
Musa I. Taha ◽  
Abdul-ghany O. Sarmamy
Keyword(s):  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Penicillium Spp

scholarly journals Genetic variability and vegetative compatibility in Aspergillus niger isolated from various food substances in Benin City Nigeria

2021 ◽  
Vol 24 (12) ◽  
pp. 2161-2165
Author(s):  
L. Eboigbe ◽  
M.O. Omoregbe
Keyword(s):  
Aspergillus Niger ◽  
Minimal Medium ◽  
Genetic Recombination ◽  
Potato Dextrose Agar ◽  
Vegetative Compatibility ◽  
Complementation Test ◽  
Vegetative Compatibility Groups ◽  
Benin City ◽  
Nit Mutants ◽  
Mutant Strains

In this investigation, Aspergillus niger isolated from eight food substances, have been classified based on the absence of heterokaryon formation. The size of their sporangia were differentiated, the wild and mutant strains were subjected to vegetative compatibility tests in order to group them into different vegetative compatibility groups (VCGs) which include VCG-1, VCG-2, VCG-3 and VCG-4. The strains were further tested for the possible formation of a stable heterokaryon using nit mutants generated on potato dextrose agar (PDA) containing 2.5% chlorate (KClO3), represented as PDC. Based on the vegetative compatibility groups, nit mutants were paired on a minimal medium (MM) for complementation test. Interestingly, there was compatibility with mycelia showing anastomoses but without the formation of heterokaryon. The vegetative compatibility groups suggested four genotypes and polymorphism in the het loci. A population study for detailed genotyping is suggested in order to unravel the genetic recombination in A. niger.

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