Contoh Cara Mencari Jurnal Untuk Tesis Pdf

Contoh Cara Mencari Jurnal Untuk Tesis Pdf

ABSTRACT

SYNTHESIS OF CORN FLOATED FLOOR METHOD THROUGH MICRO WAVE TECHNIQUE [Microwave-Assisted Synthesis of Phosphorylated Corn Star] Atep Dian Supardan *, Suminar Setiati Achmadi and Tun Tedja Irawadi Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Bogor, Received March 28, 2013 / Presumably February 24, 2014 ABSTRACT Phosphorylated starch is a type of starch modification that is mostly imported. Generally, the modified starch should contain more than 25% amylose. This study aims to synthesize phosphorylated starch and evaluate its potency as heavy metal adsorbent. Corn starch is subjected to phosphorylation via a microwave-assisted reaction with a mixture of orthophosphoric dihydrogen sodium and disodium hydrogen phosphate. This experiment was designed to optimize the pH, microwave radiation power, and time of phosphorylation. The results showed that the maximum degree of phosphate substitution was obtained at pH 6, microwave waves 500 W, and reaction time of 10 minutes. The subtitution level ranges from 0.567 to 0.787. The physicochemical properties of the product ie swelling capacity, solubility, water-binding capacity, and clarity of the paste are significantly different from those of unmodified corn starch. The infrared spectrum shows high peak uptake at 1651 cm-1 wavelength, indicating the formation of hydrogen bonds of phosphorus groups-phosphoric-phosphorus groups. In the fingerprint area, there are two new absorption peaks at 1200 and 990 cm-1, each set for P = 0 and C-O-P vibrations. The phosphorylated corn star adsorbs the methylene blue up to 73.3% and mercury up to 73.6%, indicating the prospect of microphobic corn-assisted microphobic corn starch as an effective adsorbent for heavy metals.

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  1. SINTESIS PATI JAGUNG TERFOSFORILASI MELALUI TEKNIK GELOMBANG MIKRO [Microwave-Assisted Synthesis of Phosphorylated Corn Starch]
  2. Rumusan Masalah dalam Tesis Program Studi Pendidikan Bahasa Inggris Pascasarjana Universitas Negeri Malang
  3. HIPOTESIS SAPIR-WHORF DAN TATA PERGAULAN GENERASI MUDA
  4. Pengaruh Pemangkasan Batang dan Cabang Primer terhadap Laju Fotosintesis dan Produksi Jarak Pagar (Jatropha curcas L.)
  5. SINTESIS PATI SAGU IKATAN SILANG FOSFAT BERDERAJAT SUBSTITUSI FOSFAT TINGGI DALAM SUASANA ASAM [Synthesis of Cross-Linked Sago Starch Phosphate with the Highest Degree of Substitution of Phosphate Under Acidic Condition]
  6. PENGUJIAN HIPOTESIS KUZNETS
  7. SINTESIS DIASETIL GAMAVUTON-0 DENGAN MENGGUNAKAN ASETIL KLORIDA SEBAGAI ACYLATING AGENT
  8. Sintesis Biodiesel dari Minyak Limbah Biji Karet sebagai Sumber Energi Alternatif
  9. STUDI PERBANDINGAN HASIL SINTESIS METIL-N(2,3-XILIL)ANTRANILAT DENGAN PEREAKSI DIAZOMETANA DAN BF3-METANOL
  10. SINTESIS SENYAWA orto-FENILAZO-2-NAFTOL SEBAGAI INDIKATOR DALAM TITRASI

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