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Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi,Khairulmazmi Ahmad,Intan Safinar Ismail,Norhayu Asib,Osumanu Haruna Ahmed,Abubakar Ismaila Abubakar,Yasmeen Siddiqui,Mohd Razi Ismail 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.6
Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed of monoterpenes (transcaryophyllene, camphene, geranial, eucalyptol, and neral) and sesquiterpene hydrocarbons (α-zingiberene, ar-curcumene, β-bisabolene, and β-sesquiphellandrene). GC-MS analysis of the EOs revealed many compounds but few compounds were revealed using the headspace approach. The EOs have a wide range of activities against many phytopathogens. EOs mode of action affects both the pathogen cell’s external envelope and internal structures. The problems associated with solubility and stability of EOs had prompted the use nanotechnology such as nanoemulsions. The use of nanoemulsion to increase efficiency and supply of EOs to control plant diseases control was discussed in this present paper. The findings of this review paper may accelerate the effective use of ginger EOs in controlling tropical plant diseases.
Muhammad Abdullah Rahmat,Aznan Fazli Ismail,Nursyamimi Diyana Rodzi,Eli Syafiqah Aziman,Wan Mohd Razi Idris,Tukimat Lihan 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.6
The tin tailing processing industry in Malaysia has operated with minimal regard and awareness formaterial management and working environment safety, impacting the environment and workers inaspects of radiation and heavy metal exposure. RIA was conducted where environmental samples wereanalyzed, revealing concentrations of 226Ra, 232Th and 40K between the range of 0.1e10.0, 0.0e25.7, and0.1e5.8 Bq/g respectively, resulting in the AED exceeding UNCEAR recommended value and regulationlimit enforced by AELB (1 mSv/y). Raeq calculated indicates that samples collected pose a significantthreat to human health from gamma-ray exposure. Assessment of heavy metal content via pollutionindices of soil and sediment showed significant contamination and enrichment from processing activitiesconducted. As and Fe were two of the highest metals exposed both via soil ingestion with an average of4.6 103 mg/kg-day and 1.4 104 mg/kg-day, and dermal contact with an average of 5.6 104 mg/kg-day and 6.0 104. mg/kg-day respectively. Exposure via accidental ingestion of soil and sedimentcould potentially cause adverse non-carcinogenic and carcinogenic health effect towards workers in theindustry. Correlation analysis indicates the presence of a relationship between the concentration ofNORM and trace elements