Browsing Undergraduate Theses by Type "Skripsi Sarjana"

1,2-Dimetil-1,1,2,2-Tetrafenildisilana Sulfonat Mengkatalisis Reaksi Esterifikasi Asam Palmitat dengan 2-Butanol

Simangunsong, Rizal Agus W (Universitas Sumatera Utara, 2014)

2-butyl palmitate has been synthesized by reacting palmitic acid and 2-butanol at 100 ° C for 10 hours and at a temperature of 150oC for 15 hours using 1,2-dimethyl- 1,1,2,2-tetrafenil disilan sulfonate catalyst with ...

1,2-dimetil-1,1,2,2-tetrafenildisilana Sulfonat Mengkatalisis Reaksi Esterifikasi Asam Stearat dengan Metanol dan 2-propanol

Bali, Paulus Osara (Universitas Sumatera Utara, 2014)

Esterification reaction between stearic acid with methanol and 2-propanol using 1,2-dimethyl-1,1,2,2-tetraphenyldisilane sulfonate as catalyst have gave methyl stearate and isopropyl stearate. Esterification reaction was ...

1,2-Dimetil-1,1,2,2-Tetrafenildisilana Sulfonat sebagai Katalis Reaksi Transesterifikasi Cpo (Crude Palm Oil) Berkadar Asam Lemak Bebas Tinggi untuk Menghasilkan Biodiesel

Manullang, Wiyanti Fransisca (Universitas sumatera Utara, 2014)

Transesterification of crude palm oil ( CPO ) with 7,82 % free fatty acids has been done by using 1,2-dimethyl-1,1,2,2-tetraphenyl-disilane sulfonated as a catalyst with different temperature and reusability of the ...

Adsorpsi Asam Lemak Bebas dari CPO dengan Menggunakan Adsorben Kalsium Silikat Bertemplate Glukosa

Teesha, Riva Laura (Universitas Sumatera Utara, 2018)

Research has been conducted about using calcium silicate adsorbent (CaSiO3) glucose template on adsorption of free fatty acid on crude palm oil by adsorption method. This research aims to reduce of free fatty acid on ...

Adsorpsi Asam Lemak Bebas dari Minyak Sawit Mentah Menggunakan Adsorben Kalsium Silikat (CaSiO3) Template Gliserol

Siahaan, Ananda Putra (Universitas Sumatera Utara, 2018)

Research has been conducted on the reduction of free fatty acid content in crude palm oil by adsorption method using calcium silicate adsorbent (CaSiO3) glycerol template. The experimental results show that CaSiO3 template ...

Adsorpsi Karotenoida dari Minyak Sawit Mentah (CPO) Menggunakan Kalsium Polistirena Sulfonat Berderajat Sulfonasi 27% dan Desorpsinya dengan Etanol

Sihombing, Rio The Holyman (Universitas Sumatera Utara, 2015)

Carotenoids have adsorbed from Crude Palm Oil it consist of 455 ppm carotene with calcium polystyrene sulfonate, degree of sulfonation 27% contains of Ca 6,74. Carotenoids that adsorbed in calcium polystyrene sulfonate ...

Adsorpsi Logam Pb pada Adsorbent Berbasis Karboksimetil Selulosa dan Hidroksipropil Metil Selulosa dengan Divinil Sulfon sebagai Agen Ikat Silang

Nurhasanah, Ananda Ihfa (Universitas Sumatera Utara, 2025)

This study examines the adsorption process of Pb metal on adsorbents based on carboxymethyl cellulose (CMC) and hydroxypropyl methyl cellulose (HPMC) with divinyl sulfone (DVS) as a crosslinking agent. The adsorbent was ...

Adsorpsi Zat Warna Congo Red menggunakan Adsorben Berbahan Dasar Pati Sagu dan Karboksimetil Selulosa Menurut Persamaan Langmuir dan Freundlich

Siregar, Afieva Fawnia (Universitas Sumatera Utara, 2024-12-30)

Research on adsorbents from sago starch and carboxymethyl cellulose with aluminum sulfate and boric acid cross-binding agents applied to the adsorption of congo red dye. This study aims to determine the equilibrium time ...

Aktivitas Anti Bakteri Pada Pembuatan Minuman Sehat dengan Menggunakan Kitosan Larut Air dan Vitamin C

Sari, Indah Purnama (Universitas Sumatera Utara, 2022)

Research on water-soluble chitosan was produced from commercial chitosan depolymerization and then used as an antibacterial agent in healthy drinks. It consisted of two stages. The first stage of modification of commercial ...

Aktivitas Antibakteri dari Sabun Transparan yang ditambahkan Avocado Oil dan Ekstrak Bunga Telang (Clitoria Ternatea)

Wulandari, Sri (Universitas Sumatera Utara, 2022)

Butterfly pea flowers contain secondary metabolites, one of which is antibacterial, because it has potential as an alternative to antibiotics. The purpose of the research was to increase the function of transparent soap ...

Aktivitas Antibakteri Edible Film dari Pati Tapioka yang di Inkorporasi dengan Minyak Atsiri Daun Attarasa [Litsea Cubeba(Lour.) Pers.]

Mardhia, Yeni (Universitas Sumatera Utara, 2010)

Isolation of the attarasa leaves [Litsea cubeba (Lour.) Pers.] essential oil has been research by distillation with stahl instrument and and antibacterial activity test with agar diffusion method. Attarasa oil on ...

Aktivitas Antioksidan Edible Film Galaktomanan yang Diinkorporasi dengan Ekstrak Rimpang Jahe pada Daging Ikan Nila

Sitepu, Mawar Teresia (Universitas Sumatera Utara, 2015)

The isolated of fresh ginger essential oil had been by hidrodistillation and chemical components were analyzed by GC - MS. The main chemical components of volatile oil (> 3%) is obtained geranial (20.27%), 1,8-cineol ...

Aktivitas Antioksidan Komponen Minyak Atsiri Bahan Segar dan Ekstrak Etanol dari Ampas Rimpang Jahe Gajah serta Aplikasi terhadap Daging Ikan Nila

Tantono, Edy (Universitas sumatera Utara, 2012)

Had been isolated and determination constituent of fresh ginger essential oil by Stahl distillation and GC-MS analysis. The dominant constituents of essential oil such as geranial (13,97%), 1,8-cineole (12,6%), neral ...

Aktivitas Antioksidan Komponen Minyak Atsiri Bahan Segar dan Ekstrak Etanol dari Ampas Rimpang Jahe Gajah Serta Aplikasi terhadap Daging Ikan Nila

Tantono, Edy (Universitas Sumatera Utara, 2012)

Had been isolated and determination constituent of fresh ginger essential oil by Stahl distillation and GC-MS analysis. The dominant constituents of essential oil such as geranial (13,97%), 1,8-cineole (12,6%), neral ...