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PERBANDINGAN METODE PENGERINGAN TERHADAP RESORBSI AMNION DALAM LARUTAN SIMULATED BODY FLUID (SBF) Suryani, Nani
BETA GAMMA Vol 4, No 2 (2013): Agustus 2013
Publisher : BATAN

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Abstract

Telah dilakukan percobaan resorbsi membran amnion kering udara(air dried) dan amnion liofilsasi di dalam larutan SBF. Sembilan (9) lembar membran amnion liofilisasi dan amnion kering udara steril berukuran 3 x 3 cm, masing-masing dimasukan dalam sembilan buah botol yang berisi 25 ml larutan SBF dengan pH 7.40.Sampel di inkubasi pada suhu 37O C selama 1 minggu. Setelah hari ke tujuh membran amnion yang tersisa dicuci dengan aquadest steril,lalu dikeringkan dalam oven suhu 600C selama 24 jam, kemudian ditimbang beratnya. Percobaan ini dilakukan sampai didapatkan bobot tetap. Hasil menunjukkan bahwa amnion liofilisasi dapat diresorbsi lebih cepat dibandingkan dengan amnion kering. ABSTRACTCOMPARATION OF DRYING METHOD ON THE AMNION RESORPTION IN THE SBF SOLUTION. Resorption experiment of air dried and lyophilization amnion in the SBF have been done. Nine pieces of irradiation sterilized air dried and lyophilized amnion membranes (3 x 3 cm2), were soaked into 9 glass bottles containing 25 ml of SBF solution (pH 7.40), respectively. The samples were incubated at 370C for 1 week. After the seventh day, the remaining of amnion in the bottles were washed with distilled water and dried in an oven at 600C for 24 hours, and weighed.The experiments were conducted up to constant weight. The results showed that the lyophilization amnion can be resorbed more quikly than that dried amnion.
ANALISIS PENDIDIKAN FORMAL ANAK PADA KELUARGA NELAYAN DI DESA KARANG JALADRI, KECAMATAN PARIGI, KABUPATEN CIAMIS, PROVINSI JAWA BARAT Suryani, Nani; Aminah, Siti; Kusumastuti, Yastri Indah
Buletin Ekonomi Perikanan Vol. 5 No. 2 (2004): Buletin Ekonomi Perikanan
Publisher : Buletin Ekonomi Perikanan

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Abstract

Human resources development is a key to achieve a better quality of human life. One way to promote human quality of life is through involving people in education, both formal and informal education. The research focuses on how the fishermen family can takes advantages from formal education. It is expected, that the fishermen have good preferency to involve their chilbren to take formal education in order to broaden their mind and knowledge. From the research, it has been the shown that the distance of the school and the parents age, two factors affecting the willingness of the fishermen to send their children to scholl.
PENGEMBANGAN BUKU TEKS DIGITAL INTERAKTIF UNTUK PEMAHAMAN KONSEP GEOGRAFI Suryani, Nani
Jurnal Gea Vol 15, No 2 (2015)
Publisher : Rizki Offset

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Abstract

The research aims to develop Interactive Digital Textbooks for Geography concept understanding on the topic of the Environment by adopting R&D (Research and Development) method. The design of Interactive Digital Textbooks was validated by three validators, namely two validators for content and one validator for the media. To find the effectiveness of the Interactive Digital Textbooks, an experiment with randomized control group pretest–posttest design was employed. Meanwhile, the research subjects for the product testing were the eleventh grade students of UPI (Indonesia University of Education) Laboratory Senior High School.  Based on empirical test, it is found that there was a difference in experimental class students’ scores before and after treatment with Interactive Digital Textbooks I and II. The difference was evidenced in the increased average score after the treatment. It is also found that there was a difference in control class students’ test results before and after treatment with conventional Textbooks I and II. The difference is showed by increased average score after treatment. Furthermore, there was a difference in concept understanding between experimental class students who used Interactive Digital Textbooks I and II and those of the control class treated with Textbooks I and II. The difference suggests that there was improvement in the concept understanding of both experimental and control class students. Hence, the developed Interactive Digital Textbooks had influence on students’ concept understanding in Geography subject.Keywords: interactive digital textbooks, concept understanding.
Determination of Antioxidant Activities of Rhizomes of Laja Gowah (Alpinia malaccensis (Burm, F.) Roxb. Sumiardi, Ade; Suryani, Nani; Marhamah, Siti
Proceeding International Conference on Global Resource Conservation Vol 6, No 1: Proceeding of 6th ICGRC 2015
Publisher : Proceeding International Conference on Global Resource Conservation

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Abstract

Antioxidant is a substance that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals. Antioxidants are also commonly added to food products such as vegetable oils and prepared foods to prevent or delay their deterioration from the action of air. Antioxidants may possibly reduce the risks of cancer.  This study aimed to determine the antioxidant activities of rhizome of Laja Gowah (Alpinia malaccensis (Burm, F.) Roxb.) by using DPPH (1,1-Diphenyl-2-Picrylhydrazyl) methods. Laja Gowah (Alpinia malaccensis (Burm, F.) Roxb. ) is classified into family of Zingiberaceae. Extraction is done by maceration with methanol solvent and fractionation by using a funnel with a solvent which has different levels of polarity, namely the n-hexane and ethyl acetate. Qualitative analysis is measured by thin layer chromatography for fraction methanol, n-hexane and ethyl acetate. All fraction showed the presence of flavonoids and terpenoids which is marked by appearing yellow and purple spots after reacting by H2SO4 10%. Determination of antioxidant activities from the each fraction showed that all fractions have potential function as an antioxidant with LC50 values. Fraction of n-hexane showed 72.03 ppm, fraction of ethyl acetate showed 96.31 ppm, and fraction of methanol showed 194.43 ppm. For comparison, ascorbic acid has antioxidant activities with IC50 values as many as 2.23 ppm.Keywords: Alpinia malaccensis; antioxidant; 1,1-diphenyl-2-picrylhydrazyl
OBAT KUMUR HERBAL YANG MENGANDUNG EKSTRAK ETIL ASETAT KULIT BATANG BINTARO (CERBERRA ODOLLAM GAERTN) SEBAGAI ANTIBAKTERI STREPTOCOCCUS MUTANS PENYEBAB PLAK GIGI Suryani, Nani
Farmaka Vol 17, No 2 (2019): Farmaka (Agustus)
Publisher : Fakultas Farmasi, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.664 KB) | DOI: 10.24198/jf.v17i2.22606

Abstract

Persentase penduduk Indonesia yang mempunyai masalah gigi dan mulut menurut Riskedas tahun 2007 dan 2013 meningkat dari 23,2% menjadi 25,9%. Dari penduduk yang menerima perawatan medis gigi meningkat dari 29,7% tahun 2007 menjadi 31,1% pada tahun 2013. Beberapa permasalahan gigi dan mulut diantaranya adalah gigi berlubang, karies dan plak gigi. Beberapa cara pengendalian dari permasalahan gigi dan mulut diantaranya adalah dengan menyikat gigi, dental floss, scalling dan penggunaan obat kumur. Obat kumur adalah konsentrasi encer larutan antibakteri yang digunakan untuk melawan mikroba oral, melawan infeksi oral, pembersih, untuk menghilangkan bau mulut segar dan antiseptik. Indonesia memiliki kekayaan sumber daya alam yang digunakan sebagai antibakteri, salah satunya adalah tumbuhan Bintaro (Cerberra odollam Gaertn). Tumbuhan C. odollam G. memiliki manfaat bagi kesehatan mempunyai aktivitas sebagai antibakteri, antidiuretik dan antinosiseptif. Formulasi obat kumur dari ekstrak etil asetat kulit C. odollam G kemudian dievaluasi untuk mengetahui kestabilan dari sediaan obat kumur yang telah dibuat, evaluasi ini meliputi pengamatan sediaan uji selama 3 minggu waktu penyimpanan di suhu ruang meliputi uji organoleptis dan pH. Berdasarkan hasil pengamatan secara organoleptis, obat kumur yang mengandung 40% ekstrak etil asetat kulit C. odollam G berwarna coklat dengan aroma mint dan berasa manis mint dengan pH 4. Secara umum, sekitar 40 ? 45% dari 30 panelis menyatakan suka terhadap obat kumur hasil formulasi. Obat kumur dari ekstrak etil asetat kulit batang C. odollam G. 40% efektif sebagai antibakteri terhadap bakteri S. mutans dengan diameter zona hambat rata-rata 17,7 mm.Kata kunci : obat kumur, Cerberra odollam Gaertn, formulasi, antibakteri, Streptococcus mutans
PEMBUATAN KOMPOSIT POLIKAPROLAKTON-KITOSAN-HIDROKSIAPATIT IRADIASI UNTUK APLIKASI BIOMATERIAL[Preparation of Irradiated Polycaprolactone-Chitosan-Hydroxyapatite for Biomaterial Application] Warastuti, Yessy; Abbas, Basril; Suryani, Nani
Metalurgi Vol 28, No 2 (2013): Metalurgi Vol.28 No.2 Agustus 2013
Publisher : Pusat Penelitian Metalurgi dan Material - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.921 KB) | DOI: 10.14203/metalurgi.v28i2.256

Abstract

PEMBUATAN KOMPOSIT POLIKAPROLAKTON-KITOSAN-HIDROKSIAPATIT IRADIASI UNTUK APLIKASI BIOMATERIAL. Biokompatibel komposit polikaprolakton-kitosan-hidroksiapatit dengan berbagai komposisi telah dibuat menggunakan pelarut asam asetat glasial dan menggunakan metode film casting pada suhu kamar. Dilakukan proses iradiasi dengan mesin berkas elektron pada dosis 10-50 kGy. Membran komposit tersebut diuji kemampuannya untuk mengabsorpsi air, uji sifat mekanik, identifikasi gugus fungsi dengan fourier transform infra red spectroscopy (FTIR) dan analisa pola difraksi dengan x-ray diffraction (XRD). Uji absorpsi air menunjukkan peningkatan seiring dengan bertambahnya konsentrasi kitosan dan hidroksiapatit karena sifat hidrofilisitas dari keduanya. Uji sifat mekanik menunjukkan kenaikan nilai kekuatan tarik maksimum dan penurunan elongasi seiring dengan kenaikan dosis iradiasi. Pita serapan FTIR dari membran komposit I - IV menunjukkan gabungan puncak-puncak yang khas dari bahan penyusunnya. Analisa pola difraksi dengan XRD menunjukkan tidak teramatinya perubahan struktur kristal pada membran komposit. Penelitian ini menghasilkan komposisi membran yang prospektif untuk dikembangkan lebih lanjut sebagai bahan biomaterial untuk aplikasi klinis. AbstractBiocompatible polycaprolactone-chitosan-hydroxyapatite composite with various composition were preparedusing glacial acetic acid solvent and film casting method at room temperature. Irradiation process was doneusing electron beam machine at the dose of 10-50 kGy. These membranes were investigated for its ability toabsorp water, mechanical properties, identification of functional group with fourier transform infra redspectroscopy (FTIR) and diffraction pattern analysis with x-ray diffraction (XRD). Water absorptionincreased with the increasing of chitosan and hydroxyapatite because of their hidrophilicity. Mechanicalproperties test shows the increased of tensile strength and decreased of elongation as the irradiation dose rises.FTIR absorbed bands composite membrane I to IV shows association of specific peaks of polycaprolactone,chitosan and hydroxyapatite. Diffraction pattern analysis by using XRD shows unchanged of crystalstructures in composite membranes. The results of this study show the composition of membranes isprospective for the further development of biomaterial for clinical application.
Antibacterial Activity of Kecombrang Rod Extract (Etlingera elatior (Jack) R.M.Sm.) on Dental Plaque Bacteria Streptococcus mutans Suryani, Nani; Nurjanah, Devi; Indriatmoko, Dimas Danang
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v2i1.19

Abstract

Dental plaques are formed by biofilms that cover the surface of the tooth. Biofilm is a mucous layer consisting of millions of bacterial cells, saliva and food scraps. When biofilm formation is out of control, it will easily thicken on the tooth surface called plaque. This biofilm is a good place for colonization and growth of various types of bacteria, one of which is the Sterpotococcus mutans bacteria. S. mutans bacteria can form colonies that are firmly attached to the tooth surface and are cariogenic bacteria that are able to ferment sucrose (carbohydrates) into acid, reduce the pH of the tooth surface and cause tooth mineralization. So for the control of these bacteria, preparations containing antibacterials are used, one of which is natural ingredients, namely Kecombrang. The aim of this study was to determine the antibacterial activity of the Etlingera elatior (Jack) R.M.Sm. stem extract extracted by solvent based on the level of polarity. Antibacterial activity testing of extracts was divided into 5 groups, namely for n-hexane, ethyl acetate, ethanol extract 20, 40, 60 and 80%, positive control of minosep and negative control (DMSO). The test results showed that E. elatior (Jack) RMSm.) contained secondary metabolites of flavonoids, tannins, saponins, triterpenoids and alkaloids, ethyl acetate extracts with concentrations of 20, 40, 60 and 80%, having strong antibacterial activity against S. mutans of 17.22; 17,55; 17.77 and 18.55 mm, higher than the positive control of Minosep which has antibacterial activity of 16.55 mm.
MENINGKATKAN PEMAHAMAN SISWA MELALUI METODE DISKUSI DENGAN PENERAPAN TUTOR SEBAYA DALAM MENENTUKAN OPERASI PECAHAN PADA PELAJARAN MATEMATIKA DI KELAS VI (Penelitikan Tindakan Kelas di SDN I Kadurama Kecamatan Ciawigebang) Suryani, Nani
Didaktika Vol 4, No 1 (2017)
Publisher : PGSD Universitas Kuningan

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Abstract

Effect of Beneng Taro Starch (Xanthosoma undipes K. Koch) Concentration as Disintegrant on Active Ingredient and Microbial Limit Test of Paracetamol 500 mg Tablets Dimas, Indriatmoko Danang; Suryani, Nani; Lestari, Dwi Putri; Rudiana, Tarso
Jurnal Kartika Kimia Vol 2 No 2 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v2i2.39

Abstract

Tablet dosage form consist of active substances and excipients. Excipients or additives in tablet formulations may be fillers, binders and adhesives, disintegrants, lubricants, antiadherents, adsorbents, flavorings, and coloring agents. Excipients are physical, chemical and pharmacological inert substances which are added to tablet dosage formulations to help it meet the technological process requirements, technical specifications, physical appearance, and official quality requirements (pharmacopoeia). An important excipient for tablet dosage form is the disintegrants. Disintegrants affect the release of active medicinal substances from preparations and can then provide the desired therapeutic effect. One of the disintegrants is starch. Plants that have the potential to have high levels of starch are beneng taro. Xanthosoma undipes K. Koch tubers themselves have a starch content of 15.21%. This study aims to determine the effect of the concentration of taro beneng starch on active ingredient and microbial limit of paracetamol 500 mg tablets. Tablets are made by direct pressing method with variations in the concentration of beneng taro starch as a disintegrant, are 0% (FI), 5% (FII), 10% (FIII) and 15% (IV). The results of the determination of the content showed that all formulations met the requirements of the Pharmacopoeia of Indonesia, FI = 100.27%; FII = 99.95%; FIII = 100.06%; and FIV 99.85%. Microbial limit test showed that the Total Plate Count FI = 20 cfu/g; FII = 35 cfu/g; FIII = 10 cfu/g; FIV = 50 cfu/g. Total Yeast and Mold Count are FI = 110 cfu/g; FII = 100 cfu/g; FIII = 50 cfu/g; FIV = 150 cfu/g. Pathogenic bacterial tests show that all formulas are not contaminated with pathogenic bacteria. Keywords: tablets, Xanthosoma undipes K. Koch, paracetamol, determination, microbes.
PEMBUATAN PUPUK KALIUM SULFAT DARI PRODUK SAMPING BIODISEL DENGAN BAHAN BAKU MINYAK GORENG BEKAS Aziz, Isalmi; Hendrawati, Hendrawati; Suryani, Nani
Jurnal Riset Sains dan Kimia Terapan Vol 4 No 2 (2014): JRSKT - Jurnal Riset Sains dan Kimia Terapan, Volume 4 Nomor 2 Desember 2014
Publisher : Program Studi Kimia Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (645.142 KB) | DOI: 10.21009/JRSKT.042.01

Abstract

Pembuatan biodiesel dari minyak goreng bekas menghasilkan produk samping crude glycerol yang mengandung katalis KOH. Katalis ini dapat dimanfaatkan sebagai bahan baku pembuatan pupuk kalium sulfat. Penelitian ini bertujuan untuk menentukan kondisi optimum pembuatan pupuk kalium sulfat dan menentukan kualitas pupuk yang dihasilkan. Pembuatan pupuk dimulai dengan mereaksikan crude glycerol yang mengandung KOH dengan asam sulfat dengan memvariasikan waktu reaksi, suhu dan konsentrasi asam sulfat. Kalium sulfat yang dihasilkan disaring dan dicuci. Kondisi optimum didapatkan pada waktu 30 menit, suhu 60oC dan konsentrasi asam sulfat 2,5% volum dengan konversi reaksi 31%. Kualitas pupuk yang dihasilkan adalah : kadar kalium 55%, kadar sulfur 18%, kadar klorin 0,006% dan kadar air 1%. Pupuk kalium sulfat ini memenuhi SNI pupuk kalium sulfat tahun 2005. Production of biodiesel from used cooking oil produces crude glycerol byproduct containing KOH catalyst. This catalyst can be used as raw material for the manufacture of potassium sulfate fertilizer. This study was to determine the optimum conditions for the production of potassium sulfate fertilizer and determine the quality of the fertilizer produced. Fertilizer production was begun by reacting crude glycerol containing sulfuric acid with KOH with varying reaction time, temperature and concentration of sulfuric acid. After production, potassium sulphate was filtered and washed. The optimum conditions were observed at 30 min, temperature of 60 ° C and sulfuric acid concentration of 2.5% volume with 31% conversion reaction. The quality of the resulting fertilizer are: 55% potassium, 18% sulfur, 0.006% chlorine and 1% water. The potassium sulfate fertilizer meets national standard (SNI) 200