Science Journal of Chemistry

Volume 9, Issue 2, April 2021

  • Synthesis, Characterization, Crystal Structure and Quantum Chemical Calculations of 2-oxo-2H-chromen-3-yl Acetate

    Akoun Abou, Siaka Sosso, Affiba Florance Kouassi, Thouakesseh Jeremie Zoueu, Abdoulaye Djande, Olivier Ouari

    Issue: Volume 9, Issue 2, April 2021
    Pages: 29-44
    Received: Mar. 14, 2021
    Accepted: Apr. 06, 2021
    Published: Apr. 16, 2021
    Downloads:
    Views:
    Abstract: This paper is focused on a combined experimental and theoretical study of 3-substituted coumarin derivative, the 2-oxo-2H-chromen-3-yl acetate (I). The compound was synthesized by reacting chroman-2,3-dione and acetic anhydride in dried diethyl ether in the presence of dried pyridine and crystallized in the orthorhombic crystal system with Pbca spa... Show More
  • Dextrose Equivalent Analysis of Acid Hydrolysed Corn and Cassava Starch Sourced from Ghana

    Odum Bismark, Owusu Kwaku Michael, Odoom Kwesi Justice, Ebenezer Otoo, Norgbey Eyram, Kwakye Danso Benjamin

    Issue: Volume 9, Issue 2, April 2021
    Pages: 45-53
    Received: Nov. 17, 2020
    Accepted: Dec. 14, 2020
    Published: Apr. 23, 2021
    Downloads:
    Views:
    Abstract: The use of acid hydrolysis to convert starch into dextrose can be difficult and time-consuming. The process requires high acidic medium and temperature which tends to contaminate the end-product hydrolysate. Therefore, this research was carried out to obtain optimum conditions necessary to produce a high and quality Dextrose Equivalent by varying t... Show More
  • Antioxidant Screening of Various Solvent Extracts of Cuminum cyminum Cultivated in Bangladesh

    Fardushi Rahman, Sabina Easmin, Shahed Zaman, Hamidul Haq, Rezaul Haque Ansary, Subed Chandra Dev Sharma, Suganya Murugesu, Vikneswari Perumal

    Issue: Volume 9, Issue 2, April 2021
    Pages: 54-61
    Received: Mar. 11, 2021
    Accepted: Apr. 02, 2021
    Published: Apr. 23, 2021
    Downloads:
    Views:
    Abstract: Cuminum cyminum is a widely used spice and most valuable medicinal plant in South Asian countries to enhance vitality. This herb has been reported to be used as conventional remedy for many years. In this research, C. cyminum cultivated in Bangladesh was focused on exploring the scavenging ability using different solvents with green extraction tech... Show More