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Panjaitan, Vera Diana
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Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Potensi Formulasi Sediaan Sabun Padat Minyak Kelapa dengan Pengisi Kaolin sebagai Media Pembersih Najis Mughallazah Panjaitan, Vera Diana; Sukeksi, Lilis; Iriany; Siswarni
Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v9i2.3851

Abstract

Qur'an explains najis mughallazah be purified using water as much as 7 times and one of which uses the ground. The addition of clay to the soap helps remove impure DNA attached to the surface of the skin. This study was conducted to determine the effect of an increase in the amount of kaolin and reaction temperature on water content and hardness of soap; determine whether the soap formulas meet the quality requirements of SNI and determine whether the soap formula capable of eliminating the derivatives pig DNA using PCR analysis method. The reaction was designed in 4 reaction temperatures (50ºC - 80ºC), the consistency of kaolin (10% - 20%), 35% NaOH concentration, reaction time 10 minutes and the stirring speed of 250 rpm. The results showed that all variations meet SNI standards. The best results were obtained in 15%; 50ºC and 17.5%; 60ºC. First, rinse the soap can eliminate DNA smeared unclean human hands. DNA washing using water and soap shows the remaining conventional PCR DNA electrophoresis. Kaolin solid soap formulation produced may eliminate DNA and meet the standard SNI 06-3532-2016.
Karakterisasi Biofilm Selulosa Bakteri dengan Modifikasi Gliserol secara Ex Situ Panjaitan, Vera Diana; Iriany; Sukeksi, Lilis
Jurnal Teknik Kimia USU Vol. 13 No. 1 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i1.13560

Abstract

Bacterial cellulose (BC) is biomaterial from bacterial fermentation that contain high purity of cellulose, but 90% of BC pellicles retained water from the fermentation process. In this study, BC was modified with glycerol immersion in different concentrations (0%; 2,5%; 5%; 7,5%; 10%). For wide application, water content on BC must be removed by drying. Various oven drying condition are temperature 80 °C and 120 °C and time 60 minutes. The physical and mechanical properties of the dried BC biofilm were determined including tensile strength and elasticity. BC biofilm bound was identified by FTIR and EDX. The results showed that glycerol concentration was able to increase biofilm elasticity from 3.46% to 27.743%. However, glycerol immersion above 7.5% caused a decrease in the tensile strength of BC biofilm. The drying variation of 120 °C produces the highest tensile strength of 7.161 MPa when soaked in 7.5% glycerol. The drying variation of 80 °C produced a biofilm with the best elasticity of 27.473%. The results of FTIR and EDX analysis confirmed that there were differences in the contents of the modified BC.
Potensi Formulasi Sediaan Sabun Padat Minyak Kelapa dengan Pengisi Kaolin sebagai Media Pembersih Najis Mughallazah Panjaitan, Vera Diana; Sukeksi, Lilis; Iriany; Siswarni
Jurnal Teknik Kimia USU Vol. 9 No. 2 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.082 KB) | DOI: 10.32734/jtk.v9i2.3851

Abstract

Qur'an explains najis mughallazah be purified using water as much as 7 times and one of which uses the ground. The addition of clay to the soap helps remove impure DNA attached to the surface of the skin. This study was conducted to determine the effect of an increase in the amount of kaolin and reaction temperature on water content and hardness of soap; determine whether the soap formulas meet the quality requirements of SNI and determine whether the soap formula capable of eliminating the derivatives pig DNA using PCR analysis method. The reaction was designed in 4 reaction temperatures (50ºC - 80ºC), the consistency of kaolin (10% - 20%), 35% NaOH concentration, reaction time 10 minutes and the stirring speed of 250 rpm. The results showed that all variations meet SNI standards. The best results were obtained in 15%; 50ºC and 17.5%; 60ºC. First, rinse the soap can eliminate DNA smeared unclean human hands. DNA washing using water and soap shows the remaining conventional PCR DNA electrophoresis. Kaolin solid soap formulation produced may eliminate DNA and meet the standard SNI 06-3532-2016.
Karakterisasi Biofilm Selulosa Bakteri dengan Modifikasi Gliserol secara Ex Situ Panjaitan, Vera Diana; Iriany; Sukeksi, Lilis
Jurnal Teknik Kimia USU Vol. 13 No. 1 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i1.13560

Abstract

Bacterial cellulose (BC) is biomaterial from bacterial fermentation that contain high purity of cellulose, but 90% of BC pellicles retained water from the fermentation process. In this study, BC was modified with glycerol immersion in different concentrations (0%; 2,5%; 5%; 7,5%; 10%). For wide application, water content on BC must be removed by drying. Various oven drying condition are temperature 80 °C and 120 °C and time 60 minutes. The physical and mechanical properties of the dried BC biofilm were determined including tensile strength and elasticity. BC biofilm bound was identified by FTIR and EDX. The results showed that glycerol concentration was able to increase biofilm elasticity from 3.46% to 27.743%. However, glycerol immersion above 7.5% caused a decrease in the tensile strength of BC biofilm. The drying variation of 120 °C produces the highest tensile strength of 7.161 MPa when soaked in 7.5% glycerol. The drying variation of 80 °C produced a biofilm with the best elasticity of 27.473%. The results of FTIR and EDX analysis confirmed that there were differences in the contents of the modified BC.
Co-Authors Iriany Siswarni Sukeksi, Lilis