Ecological and enzymatic studies on fungi associated with biscuits in Egypt

Abdel‐Sater, M. A.; Ismail, M.A.

doi:10.1016/0964-8305(93)90023-u

Cited by 9 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The present observations almost agree with the result obtained from different types of soil in some Arab countries (Moubasher et al, 1985; Abdel-Sater, 1987; Abdel-Hafez et al, 1989a, b, 1990a, b, 1991, 1995; El-Said, 1994). …”

Section: Resultssupporting

confidence: 93%

“…These high amounts of salts were not found in the cultivated (0.06~0.85%) and desert (0.01~0.48%) soils. Similar results were recorded by Abdel-Sater (1987) who found that the total soluble salts in the samples of cultivated, desert and saline soil collected from Egypt ranged between 0.13~1.69%, 0.03~1.6% and 6.62~18.63%, respectively. Also, Abdel-Hafez et al (1991, 1995) recorded that the total soluble salts collected from Egypt fluctuated between 2.2~4.7% and 0.18~0.30%.…”

Section: Resultssupporting

confidence: 89%

“…22 collected from Sabratah under Solanum lycopersicum . Abdel-Sater (1987) found that the water content of 25 soil samples collected from different habitats of each of cultivated, desert and saline soils in Egypt fluctuated between a low value (2.4~9.9%), a moderate value (10~15.2%) and a high value (15.3~21.9%). The moisture contents of soil samples collected from Bahreen ranged between 0.1~1.1% (El-Said, 1994).…”

Section: Resultsmentioning

confidence: 99%

“…Abdel-Sater (1987) recorded that the amount of carbonate, bicarbonate and chlorides in the samples of cultivated, desert and saline soils collected from Egypt ranged between 2.26~5.4%, 0.36~1.5% and 0.07~0.68%; 1.65~5.88%, 0.23~1.02% and 0.14~3.9%; and 4.2~5.94%, 0.18~1.93% and 0.36~4.14%, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Abdel-Sater (1987) found that the amount of elements in cultivated, desert and saline soils collected from Egypt were: Ca: 0.3~0.75, 0.03~2.67 and 0.07~3.75; Mg: 0.13~0.54, 0.02~0.54 and 0.013~1.23; K: 0.02~0.27, 0.02~0.51 and 0.05~0.88; and Na: 0.16~4.8, 0.12~8.05 and 2.35~39 mg/g dry soil, respectively.…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

Ecological and Physiological Studies on Soil Fungi at Western Region, Libya

El‐Said

Saleem

2008

Mycobiology

View full text Add to dashboard Cite

Sixty three species and 5 varieties belonging to 30 fungal genera were collected from 75 soil samples. Cultivated (29 genera and 58 species + 5 var.), desert (22 and 35 + 2 var.) and saline soil (21 and 41 + 1 var.) fungi were recovered on glucose-, cellulose- and 50% sucrose-Czapek's agar at 28℃. The most common genera were Alternaria, Aspergillus, Emericella, Fusarium, Mycosphaerella, Nectria and Penicillium. The most prevalent species from the three types of soils on the three types of media were Alternaria alternata, Aspergillus flavus, A. fumigatus, A. niger, A. terreus, Emericella nidulans, Fusarium oxysporum, Mycosphaerella tassiana, Nectria haematococca and Penicillium chrysogenum. Chaetomium globosum was in the top of fungi in producing endo-β-1,4-glucanases among the 42 tested isolates obtained from soils on cellulose-Czapek's agar. Maximum production of this enzyme by C. globosum obtained after 6 days of incubation at 30℃ with culture medium containing maltose as a carbon source and ammonium nitrate as a nitrogen source and pH initially adjusted to 6.

show abstract

Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Ecological and Physiological Studies on Soil Fungi at Western Region, Libya

El‐Said

Saleem

2008

Mycobiology

View full text Add to dashboard Cite

show abstract

Glycerol Production by Osmophilic/Osmotolerant Mycobiota Associated With Molasses

2017

Assiut University Journal of Multidisciplinary Scientific Resea

View full text Add to dashboard Cite

Sugarcane molasses is a by-product of sugar production from sugarcane plants. The constituents of molasses may favor the presence of osmotolerants fungi. Twenty samples of cane molasses were collected from four sugar factories from different localities in Upper Egypt during August 2015 to February 2016. Twentytwo species of osmophilic and/or osmotolerant filamentous fungi belong to 8 genera were isolated on 30% sucrose Czapek's agar medium. The most common species were Aspergillus fumigatus, A. flavus, Monascus ruber. A total of 55 isolates belong to 22 species of the collected isolates were screened for their ability to produce extracellular glycerol using Czapek's medium supplemented with 10% NaCl and 3% sodium bisulfite (Cz10NaCl). All isolates could produce extracellular glycerol with variable degrees (0.03-0.55 g/L). The highest producers were A. clavatus STRI 1, A. fumigatus STRI 12, A. terreus STRI 21, A. versicolor STRI 23, STR1 25 and Penicillium duclauxii STRI 45. They produced extracellular glycerol ranging between 0.51-0.55 g/L (= 5.54 -5.98 ml moles). On the other hand, the mycelium of both A. versicolor STRI 25 and A. clavatus STRI 1, the highest extracellular glycerol producers (5.98 and 5.87 ml moles), released respectively 63.84 and 28.90 ml moles of intracellular glycerol, when transferred into sterilized distilled water for 24 hours.

show abstract

Mycobiota associated with baby food products imported into Uganda with special reference to aflatoxigenic aspergilli and aflatoxins.

Ismail¹,

Taligoola²,

Nakamya³

2008

Czech Mycol.

View full text Add to dashboard Cite

Five baby food products imported into Uganda were collected from different shops and investigated for contamination by fungi and aflatoxins. Forty-two species belonging to 21 genera in addition to some unidentified fungi were recovered on dichloran rose bengal chloramphenicol agar. Cornflakes followed by Cerelac were the most heavily contaminated products while Heinz mixed cereal was the least. Cladosporium sphaerospermum, Fusarium tricinctum and Penicillium oxalicum were the most predominant fungi. On the other hand, using Aspergillus flavus/parasiticus agar, 34 % of the samples were positive for aflatoxigenic aspergilli. Aflatoxigenic aspergilli constituted 78.8 % of all aspergilli and 4.9 % of all contaminating fungi. Samples from all products were contaminated with aflatoxigenic aspergilli, but samples of Cerelac were the most, while those of Porridge oats were the least. Aflatoxin analysis of food samples revealed that 9 out of 13 analysed samples were contaminated with aflatoxins in the range of 1-10 ppb (6 samples) and 11-20 ppb (3 samples). Only samples of Cerelac were aflatoxin-free, although aflatoxigenic aspergilli were detected in some samples. It was noted that samples of Cerelac had the least moisture content compared to the other products. Contaminated foods constitute a health hazard to human consumption. These foods, especially those for babies, must therefore be examined at regular intervals in order to assess their hygienic quality.

show abstract

Ecological and enzymatic studies on fungi associated with biscuits in Egypt

Cited by 9 publications

References 18 publications

Ecological and Physiological Studies on Soil Fungi at Western Region, Libya

Ecological and Physiological Studies on Soil Fungi at Western Region, Libya

Glycerol Production by Osmophilic/Osmotolerant Mycobiota Associated With Molasses

Mycobiota associated with baby food products imported into Uganda with special reference to aflatoxigenic aspergilli and aflatoxins.

Contact Info

Product

Resources

About