Special Issue on Analysis of Pesticides and Insecticides in Fruits, Vegetables and Meat Products of Nepal

Submission Deadline: May 20, 2020

Please click the link to know more about Manuscript Preparation: http://www.wjfst.org/submission

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Special Issue Flyer (PDF)
  • Lead Guest Editor
    • Hemraj Sharma
      Department of Pharmaceutical Chemistry, Shree Medical and Technical College, Bharatpur, Nepal
  • Guest Editor
    Guest Editors play a significant role in a special issue. They maintain the quality of published research and enhance the special issue’s impact. If you would like to be a Guest Editor or recommend a colleague as a Guest Editor of this special issue, please Click here to complete the Guest Editor application.
    • Hari Prasad Sapkota
      Department of Pharmacology, Shree Medical and Technical College, Bharatpur, Nepal
  • Introduction

    Nepal is country which is mainly dependent in Agriculture. People used to grow crops, vegetables, fruits etc and the farmers used to face a lot of problem due to pest. Hence to overcome this issue they use variety of pesticides. Among the pesticides used organophosphate is more popular pesticides and is being used in massive extent. Organophosphates were developed during the second world war and have two main uses: as insecticides and as nerve gases (chemical warfare agents).
    They are mostly liquids, liphophilic, with some volatility and a few are solids. Generally, they are less stable and more readily broken down than organochlorines and are relatively short-lived in the environment; hence most of their hazard is associated with short-term (acute) toxicity. The water solubility of the various organophosphate compounds is very variable and they are prepared in numerous formulations: as emulsifiable concentrates for spraying and to control ectoparasites of farm animals (particularly sheep dips) and sometimes internal parasites (such as ox warble fly); as seed dressings and as granular formulations particularly used for the most toxic organophosphates (e.g. disyston and phorate) as the active ingredient is effectively 'locked up' in the granule and is safer to handle and only slowly released into the environment. Organophosphates are also used to control vertebrate pests such as Quelea in Africa.
    Organophosphates also act as a neurotoxin. They combine with the enzyme acetylcholinesterase and prevent conduction of nerve impulses at junctions in the nervous system where acetylcholine is the natural transmitter. As a result, acetylcholine builds up in the nerve synapse and eventually leads to synaptic block when the acetylcholine can no longer relay signals across the synapse. In neuro-muscle junctions this leads to tetanus, the muscle is in a fixed state, unable to contract or relax in response to nerve stimulation.
    Being a poor country the availability of highly sophisticate analytical is limited. Hence it felt a necessity for us to develop a precise and economic analytical method where the farmers can easily sent their food samples and analyze in low cost.
    In the field of pesticides UV-Vis. Spectroscopy play the vital role in the detection and interaction of metal ions with organic ligands i.e. pesticides, especially with transition metal ions. P=O can obscure absorbance. Agents themselves are not significant absorbers or emitters in the UV-Visible spectral region. Hence to analyze the components by uv method chemical derivatization is achieved by using magnesia mixture. To prepare magnesia mixture, solid ammonium chloride is added to aqueous magnesium chloride solution. Boil, cool and add ammonium hydroxide till a strong smell of ammonia is obtained. Soluble Phosphate salts react with magnesia mixture to form white color complex of magnesium ammonium phosphate. The absorbance of thus produced white magnesium ammonium phosphate.is measured spectrophotometrically at a certain wave length that gives maximum absorbance. The intensity of the color is proportional to the amount of phosphate present in the sample solution.
    Aims and Scope:
    1. Use of Pesticides and Insecticides in fruits, vegetables and meat product in Nepal
    2. Lack of economic analytical technique so famers suffer to check the amount of pest added
    3. Development of novel spectrometric technique to quantify the pesticides in Nepal
    4. Magenesia mixture is used as chemical derivative agent
    5. Evaluation of organophosphate like bromophos, chlorpyrifos, diazinon, dichlorvos, fenitrothion, malathion, parathion and phorate
    6. Estimation is based on formation of colour complex
    7. Validation of the developed method as per ICH guidelines
    8. The various bonds and functional group present in each sample is analyzed by FT-IR

  • Guidelines for Submission

    Manuscripts can be submitted until the expiry of the deadline. Submissions must be previously unpublished and may not be under consideration elsewhere.

    Papers should be formatted according to the guidelines for authors (see: http://www.wjfst.org/submission). By submitting your manuscripts to the special issue, you are acknowledging that you accept the rules established for publication of manuscripts, including agreement to pay the Article Processing Charges for the manuscripts. Manuscripts should be submitted electronically through the online manuscript submission system at http://www.sciencepublishinggroup.com/login. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal and will be listed together on the special issue website.