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Siti Isnijah
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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EFEKTIVITAS ESTER SORBITAN UNTUK STABILISASI SARI BUAH Anny Sulaswatti; Siti Isnijah; Hilyati Hilyati; Nuryatini Nuryatini; M Greasia; R Endang; Haryadi Haryadi; Burhanuddin Burhanuddin
Jurnal Kimia Terapan Indonesia Vol 9, No 1-2 (1999)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3708.498 KB) | DOI: 10.14203/jkti.v9i1-2.191

Abstract

Sorbitan esters is a nonionic surfactant which can be used as stabilizer or emulsifer i.e for food products. Nonionic surfactant is almost completely provided imported.Fatty acid derived from vegetable oil are potential for producing these esters. Indonesia is one of the largest palm oil producers in the world and sorbitol has already be produced in Indonesia, so that is has oppotnity to develop sorbitan ester. The aim this research is to evaluate the application of P3KT sorbitan esters as stabilizer in fruit juicescomparing with available commerical food stabilize.
PROSES PEMBUATAN SERTA ANALISA BENTON-38 DARI BENTONIT SEBAGAI BAHAN ADITIF PADA CAT Tasrif Tasrif; Nuryatini Nuryatini; Siti Isnijah
Jurnal Kimia Terapan Indonesia Vol 5, No 1 (1995)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3387.126 KB) | DOI: 10.14203/jkti.v5i1.237

Abstract

The production of bentone for paint additive from Cabentonite was carried out by ion exchange process. The process has two steps, i.e. Ca++ ion in Ca-bentonite is exchanged by Na+ ion in saturated solution of NaCl to produce Na-bentonite. Then, Na+ ion in Na-bentonite is exchanged into {(R1)2N(R2)2 + by using alkyl quaternary ammonium salt to produce bentone. lnterms of swelling characteristic the ion exchange using 140 ml of saturated solution of NaCl for 100 g Ca-bentonite produced best product with a swelling characteristic of 15.56. The amount of dimethyl distearyl ammonium salt (DAM) used for production of bentone-38 was 60 g/100 g bentonite. This is based on the ion exchange capacity of bentone-38, i.e. 69 meq for 100 g bentonite. Swelling characteristics of the above bentone-TS-R (reference) and bentone-38-H (experiment) were 24.5 and 39 in Spirit Mineral Terplne (SMT), 55 and 54 in SMT + ethanol (17:3 v/v), and the viscosity of bentone-38-R, and bentone-38-H are 7.2 cps and 6.5 cps respectively.
Co-Authors Anny Sulaswatti Burhanuddin Burhanuddin Haryadi Haryadi Hilyati Hilyati M Greasia Nuryatini Nuryatini R Endang Tasrif Tasrif