Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.318480
Mohamed Mohamed El-khalifa, Abu Zaid Ahmed Abu Zaid, Asma Hassan Mohamed
ABSTRACT
{"title":"The Impact of E-Commerce on Developing the Competitiveness of Food Manufacturing Facilities","authors":"Mohamed Mohamed El-khalifa, Abu Zaid Ahmed Abu Zaid, Asma Hassan Mohamed","doi":"10.21608/asejaiqjsae.2023.318480","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.318480","url":null,"abstract":"ABSTRACT","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.309713
A. F. S. A. Saad, Magdy A. Massoud, Mohamed M. Y. El-Shazly, Saadoon M. Saadoon, S. Selim
Tetranychus urticae is a worldwide common pest for many vegetable species in greenhouses and open fields. The study was conducted to evaluate the performance of two acaricide mixtures: Highpoint ® 10% EC (abamectine + hexythiazox) and Ignar ® 20% SC (abamectine + spirodiclofen), as well as a single active ingredient, Envidor ® 24% SC (spirodiclofen), against the two-spotted spider mite in greenhouse and lab experiments. In the greenhouse experiment, both Ignar ® and Highpoint ® outperformed Envidor ® acaricide against the adult and immature stages through the first 3 days in both experimental seasons. After 24 hours, Ignar ® and Highpoint ® achieved the highest efficacy with percent of reduction 95.00 and 94.86 in the 1 st season and 97.84 and 95.76% in the 2 nd season, respectively. Meanwhile, Envidor ® gave lower reduction percentages of 84.93 and 83.88%, respectively. Regarding the immature stage, Ignar ® , Highpoint ® , and Envidor ® achieved reductions of 95.63%, 94.26%, and 83.31% after 24 hours for the first season and 94.09, 95.79, and 80.57% in the second season, respectively. The residual efficacy gradually decreased to reach 62.22 and 59.72% for Ignar ® and 58.31 and 59.31% for Highpoint ® in both seasons. On the other hand, the initial kill for all acaricides against the egg stage was low after 24 hours. However, after 3 days, Ignar ® and Highpoint ® showed a sharp increase in efficacy, with a reduction percent (81.24 and 51.60% in the 1 st season) and (73.83 and 81.86% in the 2 nd season), respectively. Envidor ® showed high efficacy only at the 7 th day, with varying efficacy during the inspection periods. Laboratory bioassay tests revealed that Ignar ® was the most toxic acaricide against T. urticae adults and immatures, with a 100% toxicity index. Highpoint ® had a moderate toxicity index against adult and immature stages, while Envidor ® was less effective. Ignar ® and Highpoint ® were the most toxic compounds against eggs. Abamectin mixtures are the most toxic compounds. Highpoint ® and Ignar ® , were considered to have the best efficacy on all developmental stages of the two-spotted spider mite. Due to the extensive use of abamectin to eliminate mites and numerous sucking insects, it is better to avoid its repeated use alone or in the same mixtures to control mites for more than one or two applications in the season. The data may suggest that the appropriate acaricide for integrated pest management (IPM) for all stages of T. urticae could be Ignar ® and Highpoint ® .
{"title":"Acaricidal Management of Abamectin Mixtures against All Stages 0f the Two-Spotted Spider Mite, Tetranychus urticae Koch, Infesting Cucumber Plants","authors":"A. F. S. A. Saad, Magdy A. Massoud, Mohamed M. Y. El-Shazly, Saadoon M. Saadoon, S. Selim","doi":"10.21608/asejaiqjsae.2023.309713","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.309713","url":null,"abstract":"Tetranychus urticae is a worldwide common pest for many vegetable species in greenhouses and open fields. The study was conducted to evaluate the performance of two acaricide mixtures: Highpoint ® 10% EC (abamectine + hexythiazox) and Ignar ® 20% SC (abamectine + spirodiclofen), as well as a single active ingredient, Envidor ® 24% SC (spirodiclofen), against the two-spotted spider mite in greenhouse and lab experiments. In the greenhouse experiment, both Ignar ® and Highpoint ® outperformed Envidor ® acaricide against the adult and immature stages through the first 3 days in both experimental seasons. After 24 hours, Ignar ® and Highpoint ® achieved the highest efficacy with percent of reduction 95.00 and 94.86 in the 1 st season and 97.84 and 95.76% in the 2 nd season, respectively. Meanwhile, Envidor ® gave lower reduction percentages of 84.93 and 83.88%, respectively. Regarding the immature stage, Ignar ® , Highpoint ® , and Envidor ® achieved reductions of 95.63%, 94.26%, and 83.31% after 24 hours for the first season and 94.09, 95.79, and 80.57% in the second season, respectively. The residual efficacy gradually decreased to reach 62.22 and 59.72% for Ignar ® and 58.31 and 59.31% for Highpoint ® in both seasons. On the other hand, the initial kill for all acaricides against the egg stage was low after 24 hours. However, after 3 days, Ignar ® and Highpoint ® showed a sharp increase in efficacy, with a reduction percent (81.24 and 51.60% in the 1 st season) and (73.83 and 81.86% in the 2 nd season), respectively. Envidor ® showed high efficacy only at the 7 th day, with varying efficacy during the inspection periods. Laboratory bioassay tests revealed that Ignar ® was the most toxic acaricide against T. urticae adults and immatures, with a 100% toxicity index. Highpoint ® had a moderate toxicity index against adult and immature stages, while Envidor ® was less effective. Ignar ® and Highpoint ® were the most toxic compounds against eggs. Abamectin mixtures are the most toxic compounds. Highpoint ® and Ignar ® , were considered to have the best efficacy on all developmental stages of the two-spotted spider mite. Due to the extensive use of abamectin to eliminate mites and numerous sucking insects, it is better to avoid its repeated use alone or in the same mixtures to control mites for more than one or two applications in the season. The data may suggest that the appropriate acaricide for integrated pest management (IPM) for all stages of T. urticae could be Ignar ® and Highpoint ® .","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79864354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.312606
Adel M.A. Saleh, Samir Mahmoud Mohamed Saleh
ABSTRACT
摘要
{"title":"Measuring the Expected Economic Effect of Climate Change on the Sugar Beet Crop Using the Ricardo Model","authors":"Adel M.A. Saleh, Samir Mahmoud Mohamed Saleh","doi":"10.21608/asejaiqjsae.2023.312606","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.312606","url":null,"abstract":"ABSTRACT","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74322773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.316002
Eman Mohamed El Sayed Salama, Mariam A. A. Hanna
{"title":"An Economic Study of Dairy Production and Processing in Egypt","authors":"Eman Mohamed El Sayed Salama, Mariam A. A. Hanna","doi":"10.21608/asejaiqjsae.2023.316002","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.316002","url":null,"abstract":"","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136272217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.317746
Nagwa Hassan, Somia Hussan, Ahmed Tokyshim, Ehsan Elshial
ABSTRACT
{"title":"Environmental, Economic and Health Impact Related to Handling and Recycling of Household Solid Waste in Idku - Buhaira Governorate","authors":"Nagwa Hassan, Somia Hussan, Ahmed Tokyshim, Ehsan Elshial","doi":"10.21608/asejaiqjsae.2023.317746","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.317746","url":null,"abstract":"ABSTRACT","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136276976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.312017
Nawal Zeyada, M. Massoud, Saadia M. Hashem
The stability of lipid oxidation of fat-rich food products is one the most important factors to preserve the quality of food products. Therefore this study aimed to enhance the oxidative stability of Nigella sativa oil (NS) oil for 15 days at 50 ° C, by using different concentrations of extracts from olive leaves (OL), tomato by-product (TP), orange peel (OP) and water melon peel (WP) as naturally bioactive compounds, in addition to assess the quality of mayonnaise containing NS oil as a functional ingredient. The natural phenolic compounds of these agro-industrial wastes were extracted and identified using HPLC. The results showed that OL extract had the highest total phenolic content (121.09 mg GAE/g dw) which represented about 1.76, 3.91 and 13.34 times higher than the phenolics in the TP, OP and WP extracts, respectively. The results of the oxidative stability measurements indicated that the addition of all extracts to NS oil retarded the oxidative rancidity compared to the control as measured by the peroxide value, p -anisidine value, and thiobarbituric acid. Infrared analysis demonstrated the antioxidant power of the OL extract at 400 ppm and the TP at 600 ppm in preventing rancidity conditions, which were similarly effective as the synthetic antioxidant Tertiary-butyl hydroquinone (TBHQ) (200 ppm). This demonstrated the potential for using them as natural antioxidants to prevent rancidity in stored oil. The results of quality and sensory evaluation of NS oil mayonnaise showed an increase in viscosity and a change in colour parameters that were imperceptible to the human eye as the ΔE values were less than 3, and all mayonnaise products were “accepted” by the panelists.
{"title":"Enhancing Oxidative Stability of Nigella Sativa Oil with Some Agro-Industrial Wastes Extracts and its Utilization in Mayonnaise","authors":"Nawal Zeyada, M. Massoud, Saadia M. Hashem","doi":"10.21608/asejaiqjsae.2023.312017","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.312017","url":null,"abstract":"The stability of lipid oxidation of fat-rich food products is one the most important factors to preserve the quality of food products. Therefore this study aimed to enhance the oxidative stability of Nigella sativa oil (NS) oil for 15 days at 50 ° C, by using different concentrations of extracts from olive leaves (OL), tomato by-product (TP), orange peel (OP) and water melon peel (WP) as naturally bioactive compounds, in addition to assess the quality of mayonnaise containing NS oil as a functional ingredient. The natural phenolic compounds of these agro-industrial wastes were extracted and identified using HPLC. The results showed that OL extract had the highest total phenolic content (121.09 mg GAE/g dw) which represented about 1.76, 3.91 and 13.34 times higher than the phenolics in the TP, OP and WP extracts, respectively. The results of the oxidative stability measurements indicated that the addition of all extracts to NS oil retarded the oxidative rancidity compared to the control as measured by the peroxide value, p -anisidine value, and thiobarbituric acid. Infrared analysis demonstrated the antioxidant power of the OL extract at 400 ppm and the TP at 600 ppm in preventing rancidity conditions, which were similarly effective as the synthetic antioxidant Tertiary-butyl hydroquinone (TBHQ) (200 ppm). This demonstrated the potential for using them as natural antioxidants to prevent rancidity in stored oil. The results of quality and sensory evaluation of NS oil mayonnaise showed an increase in viscosity and a change in colour parameters that were imperceptible to the human eye as the ΔE values were less than 3, and all mayonnaise products were “accepted” by the panelists.","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81708972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.312310
H. A. Abd Elmagid, Wael A. E. Elabd
{"title":"Estimating the Technical and Economic Efficiency of the Resources Used to Produce the Cotton Crop in Kafr AL-Sheikh Governorate","authors":"H. A. Abd Elmagid, Wael A. E. Elabd","doi":"10.21608/asejaiqjsae.2023.312310","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.312310","url":null,"abstract":"","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87949392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.313877
Sherine. F. Mansour
time
时间
{"title":"Economic Study of Onion Crop in New Valley Governorate","authors":"Sherine. F. Mansour","doi":"10.21608/asejaiqjsae.2023.313877","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.313877","url":null,"abstract":"time","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"157 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72662898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-30DOI: 10.21608/asejaiqjsae.2023.310387
Fatma M. E. M. Haggag
{"title":"Estimating the Effect of Climate Change on the Productivity of Tomato Crop in Egypt","authors":"Fatma M. E. M. Haggag","doi":"10.21608/asejaiqjsae.2023.310387","DOIUrl":"https://doi.org/10.21608/asejaiqjsae.2023.310387","url":null,"abstract":"","PeriodicalId":7560,"journal":{"name":"Alexandria Science Exchange Journal","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91002507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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