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Browsing Conference / Workshop by Author "Umaningrum, Dewi"

Browsing Conference / Workshop by Author "Umaningrum, Dewi"

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  • Determination of Formaldehyde on Meatballs using Potentiometric and Spectrophotometric Methods 
    Umaningrum, Dewi; Nurmasari, Radna; Dewi Astuti, Maria (International Conference on Science and Technology for Suistainable Industry (ICSTSI) Baristand Banjarbaru, 2020-08-06)
    Formaldehyde is one of the dangerous additives in food so it requires a fast analysis method. The aim of this research was to measure the formaldehyde content in meatball samples using the potentiometric method and the ...
  • The Influence of Natrium Hidroxide Concentration in Celluloce Synthesis from Rice Straw 
    Umaningrum, Dewi; Nurmasari, Radna; Dewi Astuti, Maria (The 1th International Conference on Mathematics, Science and Education (ICOMSE) Universitas Negeri Malang, 2017-08-29)
    Celluloce synthesized from rice straw by using a simple and an efficient method. After extracted with toluene and n-hexana, rice straw powder were dilute in a various concentration of natrium hidroxide (1%, 3%, 5%, 7% and ...

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