Claim Missing Document
Check
Articles

Found 8 Documents
Search

The Test of Improvement Activity on Kidney Function by Etanolic Extract of Lansau from Muna Regency on Male Wistar Rat Ruslin, R; Kasmawati, Henny; Suryani, S; Ihsan, Sunandar; Soleman, Imelda Sarda
Pharmauho: Jurnal Farmasi, Sains, dan Kesehatan Vol 6, No 1 (2020): Pharmauho
Publisher : Fakultas Farmasi Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/pharmauho.v6i1.11655

Abstract

Lansau is one of the traditional ingredients that consist of 44 types of plants that are believed by the local society as a nutritious herb to treat various diseases that exist in the society of Muna Southeast Sulawesi Province that has been used for hundreds of years for generations. The study was conducted to determine the effect of ethanol extract of Lansau on the improvement activity of kidney function that induced gentamicin-piroxicam. A total of 24 rats were used in which 20 ratswere modeled with damage of renal function using gentamicin-piroxicam drug which was then grouped into 5 groups. The first group was treated using a Lansau extract with doseI , the second group was treated with aLansauextract dose II, the third group was treated with the Lansau extract dose III, the fourth group was treated with ketosteryl, the fifth group was no treatment only given Na. 1% CMC and the sixth group is the normal group. The Modeling was performed for 7 days and on the eighth day blood sampling was taken to measure creatinine and urea levels. As for therapy performed for 4 weeks and every end of the week also made blood taking for measurement of creatinine and urea. The highest percentage of creatinin decrease for each group was negative group -8.92%,positive group control was 84.21%,dose group I 74.75%, dose group II 80.07%, and dose group III 84.08%. For the highest percentage of decrease of ureum level for each group that is negative group -31.l49%,positive control group 49.59%,dose group I 40.53%, dose group II 26.79%, and dose group III 43.32%. The results showed that Lansau ethanol extract has the potential and effectiveness in the repair of kidney function damage.
THE EFFECT OF ADDING CHITOSAN ON THE MECHANICAL PROPERTIES OF ECO-FRIENDLY PLASTICS BASED ON PLA/PCL Alfatasya, Dinda; Suryani, S
Jurnal Sains dan Teknologi Reaksi Vol 21, No 02 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i02.4814

Abstract

ABSTRACTResearch into making eco-friendly plastic has been developed because it is environmentally friendly and renewable. In this research, eco-friendly plastic was made from Polylactic Acid (PLA) and Polycaprolactone (PCL) with the addition of chitosan as a filler. The aim of this research is to study and determine the effect of mixing variations in PLA/PCL/chitosan composition on the mechanical properties of eco-friendly plastic using a hot press at a temperature of 200 0C for 1 hour. The PLA/PCL variations are 2/8 g, 3/7 g, 5/5 g, 7/3 g and 8/2 g while the chitosan composition is 0.2 g, 0.3 g, 0.4 g, 0, 5 g and 0.6 g. The characteristics of eco-friendly plastic can be seen through biodegradation tests, tensile strength tests, elongation tests, functional group tests and plastic film morphology tests. The results of the characterization of eco-friendly plastic with optimal performance are a composition of PLA/PCL/Chitosan 8/2/0.6 grams which produces 38.8% degradation percentage, a tensile strength value of 42.53 MPa with a composition of PLA/PCL/Chitosan 8 /2/0.4 grams, elongation percentage of 6.96% with a PLA/PCL/Chitosan composition of 8/2/0.2 grams. Meanwhile, the functional groups contained are the N – H, C – H, C = O and C – O groups. The results of the identification of functional groups show that no new functional groups are formed, but only a mixing process without any reaction in the constituent materials. Based on the results of the morphology test, it shows that the sample has a smooth surface. However, there is still chitosan that does not dissolve because the mixing process is not homogeneous.Keywords: Chitosan, Polycaprolactone (PCL), Polylactic Acid (PLA)
Estimasi Parameter Model Generalizedspace Time Autoregressive (GSTAR) menggunakan Metode Generalized Least Square (GLS) Suryani, S; Saputro, Dewi Retno Sari
Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya 2018: Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1497.925 KB)

Abstract

Data time series atau data runtun waktu merupakan suatu data terurut berdasarkan waktu. Dalam beberapa kasus, terdapat data yang tidak hanya dipengaruhi waktu namun juga dipengaruhi kondisilokasi disekitarnya (pengaruh spasial). Model ruang waktu merupakan suatu model yang digunakanuntuk menggambarkan dan meramalkan data runtun waktu yang memiliki pengaruh spasial. Salah satu model ruang waktu adalah model space time autoregressive (STAR). Model STAR memilikiasumsi yang harus dipenuhi yaitu lokasi amatan harus memiliki karakteristik homogen. Pengembangan model STAR adalah model GSTAR yang dapat diterapkan pada karakteristik lokasiamatan yang heterogen dengan parameter autoregressive dan parameter space tidak harus samapada setiap lokasi. Estimasi parameter model GSTAR dengan respon multivariate dan sesatan yang saling berkorelasi menggunakan metode ordinary least square (OLS) menghasilkan estimator yang tidak efisien. Oleh karena itu, penelitian ini bertujuan lakukan estimasi parameter model GSTAR dengan metode GLS. Metode GLS merupakan generalisasi dari metode OLS, dimana metode GLS mempertimbangkan matriks variansi-kovariansi dalam estimasi parameter. Penelitian ini merupakan kajian teori, dengan menurunkan dan mengkaji ulang model GSTAR, mengkonstruksi dalam bentuk matriks dan melakukan estimasi parameter dengan GLS. Hasil kajian diperoleh estimator dengan metode GLS yang lebih efisien dari pada OLS dan ditunjukkan ketidakbiasan estimatornya.
FORMULATION OF SHAMPOO BAR USING ACTIVE INGREDIENTS OF CANDLENUT OIL (ALEURITES MOLUCCANUS L) AND STEARIC ACID Fayza, Nina; Suryani, S; Elfiana, E; Fitria, F
Jurnal Sains dan Teknologi Reaksi Vol 23, No 01 (2025): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v23i01.7635

Abstract

This study aimed to evaluate the effect of candlenut oil (Aleurites moluccanus L) and stearic acid ratios, along with mixing temperatures, on the quality of shampoo bars. A total of 25 formulations were prepared using five ratios of candlenut oil to stearic acid (6:30%, 11:25%, 16:20%, 21:15%, and 26:10%) and five mixing temperatures (70℃, 75℃, 80℃, 85℃, and 90℃). Constant ingredients included sodium cocoyl isethionate 41%, methyl ester sulfonate 13%, cetyl alcohol 5%, cocoa butter 1.9%, essential oil 1%, citric acid 0.1%, lexgard natural 1%, and colorant 1%. Quality evaluation referred to SNI 06-2692-1992 standards, covering pH, moisture content, foam stability, antibacterial activity, and organoleptic properties (color, aroma, texture). Results indicated that both the oil–acid ratio and mixing temperature significantly affected shampoo bar characteristics. The optimal formulation was obtained at a candlenut oil to stearic acid ratio of 6:30% with a mixing temperature of 70℃. This formula produced a pH of 6.47, stable foam with only 2.77% loss, low moisture content of 1.87%, and antibacterial activity of 100%. Organoleptic evaluation also showed high panelist acceptance for its color, aroma, and texture, indicating good consumer preference and product stability. Keywords: Shampoo Bar, Candlenut Oil, Stearic Acid, Mixing Temperature, Antibacterial
ANALISA KADAR ASAM OKSALAT DALAM ASAM SUNTI Suryani, S
Jurnal Sains dan Teknologi Reaksi Vol 22, No 01 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i01.6339

Abstract

ABSTRAK Asam Sunti (Belimbing wuluh kering) banyak dikonsumsi oleh masyarakat Aceh. Asam Sunti mengandung ion oksalat yang dapat menimbulkan batu ginjal dalam tubuh manusia. Penelitian ini dilakukan untuk melihat kadar asam oksalat dari asam sunti. Penelitian dilakukan terhadap Asam Sunti yang mengalami perlakuan perebusan dan yang tidak mengalami perlakuan perebusan. Konsentrasi garam divariasikan 100 gram, 150 gram dan 200 gram. Waktu pengeringan divariasikan 5 hari, 10 hari dan 15 hari. Hasil yang diperoleh konsentrasi asam oksalat tertinggi sebesar 0,1605 N terdapat pada perlakuan tanpa perebusan, jumlah garam 200 gram dan waktu pengeringan 15 hari. Keywords: Asam Sunti, asam oksalat
NOVELTY DESIGNED HYBRID ORGANIC-INORGANIC NANOCOMPOSITES FROM FUNCTIONAL PALM OIL Suryani, S; Safitri, Aida
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6346

Abstract

ABSTRACT Polyurethanes (PUs) are very versatile polymeric materials with a wide range of physical and chemical properties. PUs also have desirable properties such as high abrasion resistance, tear strength, shock absorption, flexibility and elasticity. Although they have poor thermal stability that however can be improved by using treated clay. The objective of the present work is to study the thermal stability of polyurethane, polyurethane/montmorillonite (PU CTAB-mont 3% wt) and polyurethane/montmorillonite that contain moca nanocomposites are based on palm oil polyol. The interest of investigating the synthesis of polyurethane/clay nanocomposites based on palm oil polyol is to explore the use of palm oil polyol to replace petrochemical based polyol partially. Polyurethane/clay nanocomposites were prepared by a pre-polymer method and were evaluated by fourier transform infrared spectra (FTIR) to determine micro-domain structures of segmented PU, PU CTAB-mont 3% wt, and PU Moca CTAB-mont 3% wt. The morphology of the nanocomposites were characterized by X-ray diffraction (X-RD) and flame retardant was investigated with thermogravimetric analysis (TGA). The result showed that adding clay and moca demonstrated better thermal stability in comparison with the virgin polyurethane. Keywords: Nanocomposite, polyurethane, synthesis, palm oil polyol
MECHANICAL PROPERTIES OF NANOCRYSTALLINE PRODUCED BY ELECTRODEPOTION: AN REVIEW Suryani, S
Jurnal Sains dan Teknologi Reaksi Vol 22, No 01 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i01.6340

Abstract

ABSTRACT Electrodeposition of nanocrystalline is a technologically viable production route to synthesize alloys and metal matrix composites both in bulk from and as coating. Particle concentration in plating bath strongly affects the particle content in the composites produced. The presence of particles in composites changes their characteristics, making them better or worse with respect to tensile strength, hardness or surface texture. With decreasing grain size, the hardness materials initially increase following the regular Hall-Petch relationship.Key Words: Electrodeposition,nanocrystalline, production route, alloys, tensile strength
PENGOLAHAN BENTONIT MURNI MENJADI BENTONIT NANOKOMPOSIT Suryani, S
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6426

Abstract

ABSTRAK Penelitian pendahuluan untuk mengolah bentonit yang bersumber dari bahan anorganik dan bersifat hydrofillik telah berhasil dilakukan. Pengolahan ini dilakukan untuk menghasilkan bentonit yang sesuai dengan polimer yang berbahan organik dan bersifat hydrofobic. Kesesuaian ini penting dalam rangka menghasilkan suatu polymer baru yang lebih baik dari segi sifat mekanik, fisik dan kimia daripada polymer asli. Pada penelitian ini pengujian dilakukan dengan mengunakan X-ray diffraction (X-RD) dimana hasil yang diperoleh adalah d-spacing bentonit yang belum diolah, 1.57 nm dan setelah diolah dengan CTAB d-spacing melebar menjadi 1.96, yang bermakna sejumlah alkyl ammonium sudah terinterkalasi dalam lapisan bentonit murni.Kata kunci : bentonit, interkalasi dan organik