CCL

Összesen 5 találat.
#/oldal:
Részletezés:
Rendezés:

1.

001-es BibID:BIBFORM114929
035-os BibID:(cikkazonosító)115489 (WoS)001082941400001 (Scopus)85171841937
Első szerző:Eissa, Fawzy
Cím:Comparative study between the top six heavy metals involved in the EU RASFF notifications over the last 23 years / Eissa, Fawzy; Elhawat, Nevien; Alshaal, Tarek
Dátum:2023
ISSN:0147-6513
Megjegyzések:From the Rapid Alert System for Food and Feed (RASFF) database, a total of 4728 notifications regarding the six most frequently notified heavy metals (i.e., arsenic, cadmium, lead, mercury, chromium, and nickel) were tracked from January 1, 2000, to December 31, 2022, and analyzed based on year, notification classification, notifying countries, countries of origin, product types, product categories, risk decision, and action taken. Human risk assessment owing to consumption of mercury-and cadmium-contaminated seafood was estimated as well. Results revealed that the highest numbers of notifications were on mercury (36.6%), cadmium (25.1%), and lead (14.1%). Interestingly, the number of total notifications was at its peak between 2011 and 2014; from 2015 onward, it started to decrease considerably. Alert, border rejection, and information notifications represented 29.6%, 21.9%, and 48.5% of the total notifications, respectively. Chromium and nickel resulted in 33.8% and 23.3% of border rejection notifications, respectively. About 52.0% of the alert notifications were on mercury. Serious notifications represented 34.9% of the total notifications. Mercury and cadmium notifications accounted for 54.9% and 25.8% of serious notifications, respectively. Italy was the most notifying country, recording the highest number of notifications on cadmium (29.0%), mercury (52.6%), chromium (81.0%), and nickel (78.7%). China was the most notified origin country with regards to arsenic (18.7%), cadmium (12.8%), lead (27.6%), chromium (71.2%), and nickel (66.9%) notifications. Notifications on food, food contact materials (FCM), and feed represented 71.9%, 23.4%, and 4.7%, respectively, of the total notifications. About 91.5% of mercury notifications were on fish and fish products; 24.3% of arsenic notifications related to fruits and vegetables; and 20.1% of cadmium notifications corresponded to cephalopods and products thereof. Notified products were largely withdrawn from the markets according to arsenic (20.3%), lead (17.9%), and mercury (18.0%) notifi-cations and re-dispatched because of cadmium (20.5%), chromium (42.1%), and nickel (49.5%) notifications. The target hazard quotient (THQ) values for mercury in swordfish, sharks, and tuna and cadmium in squid were all also below the threshold value of 1, implying that there is no significant risk for consumers. Overall, media coverage of RASFF alerts and actions may raise awareness of heavy metal contamination among the general public and industry professionals. The primary dietary advice of our study is to stay away from species with high mercury contents. Also, identifying the most dangerous heavy metals (HMs) and the most polluting products can help researchers prioritize their efforts in finding sustainable solutions for them.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Ecotoxicology And Environmental Safety. - 265 (2023), p. 1-12. -
További szerzők:Elhawat, Nevien Adel (1984-) (agrármérnök) Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

2.

001-es BibID:BIBFORM107521
035-os BibID:(WOS)000473836100044 (Scopus)85065676501
Első szerző:El-Nahrawy, Sahar
Cím:Biochemical traits of Bacillus subtilis MF497446: Its implications on the development of cowpea under cadmium stress and ensuring food safety / Sahar El-Nahrawy, Nevien Elhawat, Tarek Alshaal
Dátum:2019
ISSN:0147-6513
Megjegyzések:The present study aimed at assessment of different application methods of Bacillus subtilis MF497446 to induce development of cowpea ensuring food safety under cadmium (Cd) stress. Also, isolation, plant growth promoting (PGP) traits and 16 S rRNA-based identification of Bacillus subtilis MF497446 is documented. Out of 24 Bacillus isolates (AS1-AS24), only four isolates (AS4, AS12, AS14 and AS22) showed greater Cd tolerance up to 18 mg L-1. The greatest PGP traits under Cd stress were displayed by Bacillus isolate (AS12); which, also, enhanced seedling elongation and vigor index of cowpea under Cd stress. Phylogenetic analysis, based on 16 S rRNA, confirmed that this promising Bacillus isolate (AS12) belongs to Bacillus subtilis and is referred to as B. subtilis MF497446. Treatment of inoculation + soaking for 90 min of cowpea seeds by B. subtilis MF497446 resulted in the best development of cowpea plants under Cd stress (up to 9 mg kg(-1)); as fresh and dry masses of cowpea increased from 6.80 to 1.54 to 12.35 and 2.59 g plant(-1), respectively. Moreover, shoot and root lengths were 19.66 and 28.33 cm when cowpea seeds were treated by B. subtilis MF497446 (inoculation + soaking for 90 min) compared to 11.33 and 10.66 cm, respectively, for control (Cd stress only). Application of B. subtilis MF497446 (as inoculation + soaking for 90 min) reduced Cd accumulation and bioconcentration factor in cowpea plants by 29.2 and 28.9%, respectively, compared to control (Cd stress only). These results clearly reveal that applying of B. subtilis MF497446 to crops grown on Cd-contaminated soil enhances plant growth and eliminates (or at least diminishes) the risks to human health ensuring food safety.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Ecotoxicology And Environmental Safety. - 180 (2019), p. 384-395. -
További szerzők:Elhawat, Nevien Adel (1984-) (agrármérnök) Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

3.

001-es BibID:BIBFORM107522
035-os BibID:(WOS)000475411500029 (Scopus)85066994320
Első szerző:El-Shafik, El-Zawily Abd
Cím:Application of magnetic field improves growth, yield and fruit quality of tomato irrigated alternatively by fresh and agricultural drainage water / Abd El-Shafik El-Zawily, Mohamed Meleha, Mohamed El-Sawy, El-Hossiny El-Attar, Yousry Bayoumi, Tarek Alshaal
Dátum:2019
ISSN:0147-6513 1090-2414
Megjegyzések:Although the North Delta region in Egypt is one of the most densely populated areas in the world, it suffers from a severe shortage of fresh water needed to irrigate crops. So usually farmers resort to the use of low-quality water, such as agricultural drainage water, which could pose a threat to the quality of crops and then human health. Two field experiments were carried out during two consecutive summer seasons of 2014 and 2015 aimed at delivering more information about the pros and cons of alternative irrigation for tomato using fresh and agricultural drainage water with or without applying of magnetic field. The twelve surface irrigations, which tomato needs during its whole growing season, were applied alternatively between fresh and agricultural drainage water, respectively, at the following percentages (100 + 0), (75 + 25), (50 + 50), (25 + 75) and (0 + 100). Magnetic field was applied using iron fillings at a rate of 150 kg ha?1. The results revealed that growth parameters, early, total and relative yield, marketable yield and total chlorophyll and NPK content of leaves were gradually decreased with increasing the irrigation using agricultural drainage water. However, irrigating tomato by 100% fresh water had the highest values, while using of 100% agricultural drainage water displayed the lowest values. Contrarily, vitamin C, total soluble solids (TSS) and fruit firmness where at their highest values when tomato irrigated by 100% of agricultural drainage water. Applying of magnetic field not only enhances the growth, yield and quality of tomato under irrigation using agricultural water but also under fresh water. These results are of importance in areas where the use of agricultural drainage water irrigating crops is inevitable for enhancing yield and its quality and consequently ensuring food safety.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Tomato
Alternative irrigation
Agricultural drainage water
Fresh water
Magnetic field
Economic efficiency
Megjelenés:Ecotoxicology And Environmental Safety. - 181 (2019), p. 248-254. -
További szerzők:Meleha, Mohamed El-Sawy, Mohamed El-Attar, El-Hossiny Bayoumi, Yousry Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist)
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

4.

001-es BibID:BIBFORM104223
035-os BibID:(cikkazonosító)110803 (WoS)000546898000033 (Scopus)85085710989
Első szerző:Kátai János (biológus, hidrobiológus)
Cím:Would fertilization history render the soil microbial communities and theiractivities more resistant to rainfallfluctuations? / János Kátai, Ágnes Oláh Zsuposné, Magdolna Tállai, Tarek, Alshaal
Dátum:2020
ISSN:0147-6513 1090-2414
Megjegyzések:Water stress and nutrient supply are two of the most ubiquitous global changes that surely drive substantial variations not only in agricultural productivity but also extend to alert soil living organisms. The present study aims to understand the intrinsic changes in the composition of soil populations and their functions due to the interaction between long-term fertilization and rainfall fluctuations, seeing whether fertilization history would render the soil microbial communities and their activities more resistant to water stress or not. The experiment was established in 1988 on a typical meadow soil (Vertisols) as a rainfed maize monoculture receiving six elevated rates of NPK annually. The 30-year average annual precipitation of the growing season in this region is 345.1 mm. However, in 2010 rainfall was 106.1% greater than the average, while in 2011 it was 26.5% lower. The results show that long-term NPK fertilization has made the soil microbes more tolerant to changes in soil moisture content resulting from rainfall fluctuations. Soil microbes and their activities, however, did not follow a dose-response relationship of NPK as soil moisture content was the main driving factor. Numbers of total fungi, cellulose decomposing bacteria, and nitrifying bacteria increased as rainfall in 2010 increased. Moreover, microbial biomass carbon in 2010 was almost 2-fold higher than in 2009. Soil respiration in 2010 was 11 and 35% higher than in 2009 and 2011, respectively. Otherwise, high rainfall in 2010 significantly diminished soil NO3 ? content and nitrification rate. Soil enzyme activity showed a higher response to soil moisture than the rate of NPK. The highest activity of phosphatase, dehydrogenase, and saccharase was measured in the driest year (2011), while urease displayed its highest activity in 2010. High rates of NPK significantly reduced soil dehydrogenase activity. These results illustrate how important it is for fertilizer programs to be flexible to match expected climate change in order to improve productivity and reduce environmental pollution.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Long-term NPK fertilization
Rainfall fluctuation
Soil microorganisms
Soil enzymes
Soil organic matter
Water stress
Megjelenés:Ecotoxicology and Environmental Safety. - 201 (2020), p. 1-11. -
További szerzők:Zsuposné Oláh Ágnes (1949-) (agrármérnök) Tállai Magdolna (1982-) (agrármérnök) Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00008
EFOP
Internet cím:DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:

5.

001-es BibID:BIBFORM107517
035-os BibID:(cikkazonosító)110732 (WOS)000539092800021 (Scopus)85085185791
Első szerző:Sofy, Mahmoud R.
Cím:Glycine betaine counters salinity stress by maintaining high K+/Na+ ratio and antioxidant defense via limiting Na+ uptake in common bean (Phaseolus vulgaris L.) / Mahmoud R. Sofy, Nevien Elhawat, Alshaal Tarek
Dátum:2020
ISSN:0147-6513
Megjegyzések:This paper reports the role of exogenous glycine betaine (25 and 50mMGB at a rate of 50 mL per plant) in enhancing NaCl-stress tolerance in common bean (Phaseolus vulgaris L.). Irrigating plants by simulated saline water, containing 0, 50 and 100mM sodium chloride (NaCl), significantly reduced the growth dynamics, photosynthetic pigments (i.e., Chl a, Chl b, and carotenoids), membrane stability index (MSI), relative water content (RWC), and pod yield. While, malondialdehyde (MDA), endogenous proline, and glutathione contents, electrolyte leakage (EL), antioxidant defense system, and Na+ accumulation markedly increased upon exposure to NaCl-stress. However, the application of exogenous GB significantly improved salt tolerance of common bean as it increased the antioxidant defense including both enzymatic (i.e., peroxidase, superoxide dismutase, and catalase) and nonenzymatic (i.e., proline and glutathione) agents. Consequently, MSI, RWC, EL, and photosynthetic pigments have been improved recording significantly higher values than the control. Moreover, the pod yield increased by 29.8 and 59.4% when plants grown under 50 and 100mM NaCl, respectively, were sprayed with 25mMGB. Our results show that GB-induced slat tolerance in common bean plants mainly depends on the osmoregulation effect of GB and to a lesser extent on its antioxidant capacity. Foliar application of GB significantly reduced the accumulation of Na+ and at the same time induced K+ uptake maintaining a higher K+/Na+ ratio. Despite some changes in the activities of antioxidant enzymes induced by the application of GB, no consistent contribution in the salt tolerance could be cited in this study. Therefore, we suggest that salt tolerance is largely unrelated to the antioxidant defense ability of GB in common bean. While the potential role of GB in ameliorating salt tolerance is mainly due to the adjustment of ions uptake through limiting Na+ uptake and alternatively increasing K+ accumulation in plant tissues.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Ecotoxicology and Environmental Safety. - 200 (2020), p. 1-12. -
További szerzők:Elhawat, Nevien Adel (1984-) (agrármérnök) Alshaal, Tarek Ali Ahmed Ibrahim (1980-) (Soil Scientist)
Pályázati támogatás:Tempus Közalapítvány
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Rekordok letöltése1