Abstract
Seven genera and 15 species of fungi were isolated from 50 samples of then different steps of dried onion (5 samples of each step) collected from an onion factory in Sohag Governorate, Egypt, and grown on glucose-Czapek's agar (7 genera and 15 species) and 10% NaCl glucose-Czapek's (2 genera and 6 species). The average total counts of fungi were gradually decreased throughout the different steps of drying from 2090 to zero and 152 to zero colonies/g on glucose-Czapek's agar and 10% NaCl glucose-Czapek's agar media, respectively. Aspergillus was the most common genus on the two types of media used. The dominant species were Aspergillus niger, A. flavus, A. terreus, Penicillium chrysogenum and Fusarium of oxysporum on glucose-Czapek's agar and A. terreus and A. niger on 10% NaCl glucose-Czapek's agar. The chloroform extracts of different samples were tested for the presence of mycotoxins using thin layer chromatographic analysis. The results indicated that aflatoxin was present at concentrations decreased throughout the different steps of the drying from step No. 1, onion bulbs, ; to step No. 8, standard A, while step Nos. 9 & 10 (completely dry powdered onion) were free from aflatoxin. Citrinin was also present in the first three steps at concentrations gradually decreased from 30 to 10 mg/kg.
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Claims 8
Claim · model-written summary
Seven genera and 15 species of fungi were isolated from dried onion samples.
- Taxon
- Onion
Allium cepat0 - Organ / stage
- dried onione1
- Outcome
- fungi were isolatede1
- Value
- Seven genera and 15 speciese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e1“Seven genera and 15 species of fungi were isolated from 50 samples of then different steps of dried onion”
Claim · model-written summary
Aspergillus was the most common genus on both culture media.
- Taxon
- OnionAllium cepat0
- Interactor
- Aspergillus
Aspergilluse2other - Outcome
- most common genuse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e2“Aspergillus was the most common genus on the two types of media used”
Claim · model-written summary
Aspergillus niger, A. flavus, A. terreus, Penicillium chrysogenum and Fusarium of oxysporum were the dominant species on glucose-Czapek agar.
- Taxon
- OnionAllium cepat0
- Interactor
- Aspergillus niger
Aspergillus nigere3other - Second interactor
- A. flavus
Aspergillus flavuse3other - Outcome
- dominant speciese3
- Qualifier
- A. terreus, Penicillium chrysogenum and Fusarium of oxysporume3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e3“The dominant species were Aspergillus niger, A. flavus, A. terreus, Penicillium chrysogenum and Fusarium of oxysporum on glucose-Czapek's agar”
Claim · model-written summary
A. terreus and A. niger were the dominant species on 10% NaCl glucose-Czapek agar.
- Taxon
- OnionAllium cepat0
- Interactor
- A. terreus
Aspergillus terreuse4other - Second interactor
- A. nigerAspergillus nigere4other
- Outcome
- dominant speciese4
- Qualifier
- 10% NaCl glucose-Czapek's agare4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e4“The dominant species were Aspergillus niger, A. flavus, A. terreus, Penicillium chrysogenum and Fusarium of oxysporum on glucose-Czapek's agar and A. terreus and A. niger on 10% NaCl glucose-Czapek's agar”
Claim · model-written summary
Total fungal counts decreased through the drying steps, from 2090 to zero colonies per gram on glucose-Czapek agar.
- Taxon
- OnionAllium cepat0
- Treatment
- different steps of dryinge5
- Outcome
- average total counts of fungie5
- Direction
- gradually decreasede5
- Value
- from 2090 to zeroe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e5“The average total counts of fungi were gradually decreased throughout the different steps of drying from 2090 to zero and 152 to zero colonies/g”
Claim · model-written summary
Aflatoxin concentrations decreased through the drying steps.
- Taxon
- onionAllium cepae6
- Treatment
- different steps of the dryinge6
- Outcome
- aflatoxine6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e6“The results indicated that aflatoxin was present at concentrations decreased throughout the different steps of the drying from step No. 1, onion bulbs, ; to step No. 8, standard A”
Claim · model-written summary
Completely dry powdered onion was free from aflatoxin.
- Taxon
- onionAllium cepae7
- Organ / stage
- completely dry powdered onione7
- Outcome
- free from aflatoxine7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e7“while step Nos. 9 & 10 (completely dry powdered onion) were free from aflatoxin”
Claim · model-written summary
Citrinin concentrations decreased from 30 to 10 mg/kg over the first three drying steps.
- Taxon
- OnionAllium cepat0
- Treatment
- first three stepse0
- Outcome
- Citrinine0
- Direction
- gradually decreasede0
- Value
- from 30 to 10 mg/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Associated with Onion (Allium cepa L.)”
e0“Citrinin was also present in the first three steps at concentrations gradually decreased from 30 to 10 mg/kg”
The same questions in other papers
processing · disease · Allium cepa (onion)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.