Elham Ismaeel AL-shammary

Scopus Publications

Study of the Use of Banana Peels Powder in Removing some Heavy Metals
Z T Sedrah, E I Alshamary
Iop Conference Series Earth and Environmental Science, 2023
The ability of banana peel powder to remove lead, copper, and nickel was studied, and it was found that treating the peel powder with HCl acid increased the efficiency of the adsorption process for banana peel powder treated with acid at a concentration of 10%, as the removal percentage reached 45%, 30% and 25% for lead, copper, and nickel, respectively. As for the untreated banana peel powder, the removal percentage was 32%, 21%, and 18%. As for the treatment of banana peel powder with the base as NaOH at a concentration of 10%, it reached 20%, 15%, and 12% for each lead, copper, and nickel, respectively. When banana peel powder was treated with 40% acid, the removal percentage was 68%, 53%, and 44% for lead, copper, and nickel, respectively. The percentage of metal removal increased with increasing pH from 2 to 4, as the percentage of removing at pH 2 reached 41%, 29%, and 25%, and at pH 3 reached 65%, 40%, and 33% to reach the best removal rates at pH 4, which reached 75, 55 and 58% for lead, copper, and nickel respectively. The rates of metal removal then decreased with increasing pH, as the removal rate at pH 5 reached 69%, 46%, and 47%, at pH 6 reached 67%, 50%, and 45%, and at pH 7 reached 40%, 39% and 37% for lead, copper, and nickel, respectively.
ISOLATION AND IDENTIFICATION OF AFLATOXIN B1 PRODUCING FUNGI FROM STORED WHEAT IN SOME SILOS OF BAGHDAD
Mohamed A. M., E. I. Al – Shamary
Iraqi Journal of Agricultural Sciences, 2022
The aim of this study was isolation and identification of fungi producing aflatoxin B1 from wheat which was stored for four months in some silos in Baghdad , including Al Taji Silo, Khan Bani Saad Silo and Khan Dhari Silo. Those Silos were included in the agricultural plan for the marketing season 2020. Different types of fungi were obtained. They were initially identified according to cultural and morphological characteristics as Alternaria spp, Aspergillus flavus , Aspergillus niger. The ability of fungal isolates to produced aflatoxin was tested using ammonia vapor. All of the Aspergillus flavus isolates showed their ability to produce aflatoxin, unlike the other types which showed negative result. Aflatoxin produced by Aspergillus flavus was estimated using (HPLC) technique, and results showed that the highest concentration (978.5 µg / ml) was obtained from an isolate in Al-Taji Silo. This isolate was genetically identified by genetic analysis of 5.8S rRNA gene. Gene sequencing identity of local isolate was 99% in compassion to sequencing of Aspergillus flavus strain USMG09 recorded in the gene bank as ID: MK992254.1 .
Isolation and Identification of Alkaline Protease Producing Aspergills niger from Iraqi Soils
Z. T. Sedrah, E. I. Alshamary, S. Kh. Nassri
Iop Conference Series Earth and Environmental Science, 2021
Twenty purified isolates were obtained by using different soil sources, only twelve isolates belonging to Aspergillus genera depending on cultural and morphological characterization. The isolates were used as alkaline protease producer. The highest proteolytic, enzymatic activity (95.83U/ml) was obtained from Aspergillus sp. ZE isolate. This isolate was identified by 5.8 rRNA gene sequencing as Aspergills niger (accuracy of 99%), which was matched with the sequence of Aspergills niger strain GM775228 recorded in Gene bank under the ID: GM 775228.1.