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All Journal Agrointek Jurnal Pengolahan Pangan
Jusman Jusman
Universitas Tadulako
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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PENGARUH KONSENTRASI SODIUM TRIMETAPHOSPATE DAN SODIUM TRIPOLYPHOSPAT TERHADAP KARAKTERISTIK KIMIA PATI AREN MODIFIKASI Abdul Rahim; Jugni Hadiustri Agape; Muhammad Fawzul Alif Nugroho; Syahraeni Kadir; Jusman Jusman; Usman Made; If'all If'all
AGROINTEK Vol 15, No 1 (2021)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v15i1.8870

Abstract

The utilizing of arenga starch is still limited in its use in the food or non-food industry, because it needs to be dual modified. The dual modification that has been done is acetylation and phosphorylation in various ratios of sodium trimethaphosphate (STMP) and sodium tripolyphosphate (STPP). The objectives of the study was to obtain an concentrations of STMP/STPP (99: 1, b / b) ratio which based on chemical characteristics at phosphate acetylated arenga starches (PAAS). The treatment used in this study consisted of dual modification of acetylation and phosphorylation using at different concentration of STMP / STPP ratio of 2%, 4%, 6%, 8%, 10%, and 12%. Observation parameters were acetyl percent, substitution degree (DS), phosphate content, moisture content, starch content, amylose content and ash content. The results showed that the best concentration of STMP / STPP ratio was 6% because it was produced PAAS with the highest percent acetyl and DS 10.52% and 0.48 respectively. PAAS water content is lower than native arenga starch. Pospor, starch and amylose content have been relatively constant after dual modification. PAAS ash content increases with increasing concentration of STMP / STPP ratio. The dual modification process would improve the chemical properties of the resulting modified starch.
SIFAT KIMIA, FUNGSIONAL DAN REOLOGI PATI AREN FOSFAT PADA KOMBINASI KONSENTRASI PATI AREN DAN WAKTU REAKSI YANG BERBEDA Abdul Rahim; Gatot Siswo Hutomo; Syahraeni Kadir; Nur Alam; Abd Hamid; Jusman Jusman
Jurnal Pengolahan Pangan Vol 3 No 2 (2018)
Publisher : Fakultas Pertanian Universitas Alkhairaat Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.294 KB) | DOI: 10.31970/pangan.v3i2.16

Abstract

The objectives of the study were to obtained the optimal combination of starch concentration and reaction time in the synthesis of phosphorylated arenga starches. Synthesis of phosphorylated arenga starches using sodium tripolyphosphate reagents and arenga starch 20 and 30% (b/v) with variations of time reaction 30 and 45 min. Chemical, functional and rheological characteristics of phosphorylated arenga starcheswere investigated i.e. percent phosphate and degree of substitution (DS), binding of phosphate groups using FourierTransform Infrared (FTIR), water and oil holding capacity (WHC, OHC), swelling power and solubility and emulsion separation volume. The results showed a combination of 30% arenga straches with a reaction time 45 min were optimal combination that to produced phosphorylated arenga starches with the highest of phosphate content (2.710%) and DS 0.147. The FTIR spectra of phosphorylated arenga starches have been a change in vibration of OH groups that replace the reaction of phosphate groups with OH in starch molecules. WHC and swelling power increased, but solubility phosphorylated arenga starches decreased with the in increasing combination of arenga starch concentration and reaction time. The emulsion separation volume the most stable at the combination of highest arenga starch concentration and the long reaction time. Phosphorylated arenga starches which produced were used as emulsifiers for food aplication
Co-Authors Abd Hamid Abdul Rahim Abdul Rahim Gatot Siswo Hutomo If'all, If'all Jugni Hadiustri Agape Muhammad Fawzul Alif Nugroho Nur Alam Syahraeni Kadir Usman Made