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Indonesian Journal of Applied Sciences

ijas
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Published by Universitas Padjadjaran

ISSN : 20899203 EISSN : 25811991 DOI : -

Core Subject : Social,

Environmental Science

Indonesian Journal of Applied Sciences (IJAS) is a scientific journal published three times a year (April, August, December). Indonesian Journal of Applied Sciences publish original research results related to research in the field of natural science, covering a wide range of topics written in the field of knowledge: medicine, agriculture, animal husbandry, fisheries, pharmaceuticals, and other exact sciences

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Articles 144 Documents

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PERFORMANS REPRODUKTIF IKAN PATIN SIAM (PANGASIUS HYPOPTHALMUS) DALAM MERESPONS TINGKAT PENAMBAHAN TEPUNG KROTO PADA FORMULASI PAKAN BERBASIS BAHAN BAKU LOKAL Amrih Joko Waspada
Indonesian Journal of Applied Sciences Vol 2, No 2 (2012)
Publisher : Universitas Padjadjaran

kroto flour feed formulation based on local raw materials has been implemented in Research Center and Breeding Freshwater Aquacultur Technology Sukamandi, Subang, West Java from June to August 2011. This research used completely randomized design with four treatments: treatment with no addition of kroto flour (control), treatment with addition of kroto flour 5%, 10% and 15%. Each treatments was repeated four times. The results showed that the treatment which adding kroto flour showed reproductive performance (response of eggs fecundity per kilogram, fertilization rate, hatching rate, and larval survival rate) higher than control. No significant reproductive performance response for the addition of kroto flour rate of 5%, 10%, 15%.

Review: Hepatoprotector Compounds in Plant Extracts DICHY NURYADIN ZAIN; Riezki Amalia; Jutti Levita
Indonesian Journal of Applied Sciences Vol 8, No 1 (2018)
Publisher : Universitas Padjadjaran

Many plants have been reported to possess hepatoprotective activity. The mechanism has not yet been revealed, but it was predicted due to the antioxidants that could prevent the formation of free radicals produced by hepatotoxins. Of the 30 plants studied, Crocus sativus gave the largest hepatoprotector activity at a dose of 20 mg / kg, followed by Uncaria gambier Roxb. with a dose of 30 mg / kg and Melastoma malabathricum Leaf at a dose of 50 mg / kg. Keywords: Liver, CYP450, antioxidant, free radicals

PERAN EMOSI TERHADAP SELF-REGULATION MAHASISWA DALAM PENGERJAAN SKRIPSI Surya Cahyadi
Indonesian Journal of Applied Sciences Vol 4, No 2 (2014)
Publisher : Universitas Padjadjaran

UJI AKTIVITAS ANTIMIKROBA DARI EKSTRAK RUMPUT MUTIARA (Hedyotis corimbosa (L.) Lamk) TERHADAP MIKROBA Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923 dan Candida albicans ATCC 10231 ema ratna sari; Nilda Leli; Riza Amalia
Indonesian Journal of Applied Sciences Vol 7, No 3 (2017)
Publisher : Universitas Padjadjaran

Telah dilakukan uji aktivitas antimikroba dari ekstrak rumput mutiara (Hedyotis corimbosa L. Lamk) terhadap mikroba Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923 dan jamur Candida albicans ATCC 10231.Metode ekstraksi yang digunakan adalah maserasi. Dari 250 gram sampel segar di peroleh persen rendemen sebesar 3,412% b/b. Pengujian aktivitas antimikroba menggunakan metode difusi agar terhadap mikroba uji. Konsentrasi yang digunakan untuk uji aktivitas adalah 50%, 30%, dan 10%, dengan kontrol positif kloramfenikol 0,01% untuk bakteri dan nistatin 0,01% untuk jamur. Hasil pengamatan uji aktivitas antimikroba ekstrak kental etanol rumput mutiara (Hedyotis corimbosa (L.) Lamk) menunjukan bahwa zona hambat terbesar ada pada konsentrasi 50 % dengan rata-rata diameter hambat mikroba masing-masing sebesar 12,8 mm pada bakteri Escherichia coli, 12,4 mm pada bakteri Staphylococcus aureus dan 16,9 mm pada jamur Candida albicans.

Respon Deformasi, Transgresi-Regresi, dan Geomorfologi Tektonik di Daerah Apaumagida (Apowo), Enarotali, dan Pegunungan Legare akibat Tektonik Papua Maran Gultom
Indonesian Journal of Applied Sciences Vol 1, No 3 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i3.1889

Papua as the largest island in East Indonesia has a complex tectonic setting, is a result of interaction between Australia, Caroline, and Pasific plate. Historical Geology noted that there are several times events the flora and fauna large growth and followed by mass extinction. Furthermore, separated three boundary tectonic exactly at coordinates 135° 00’ 00” East - 136° 30’ 00” East and 3° 00’ 00” South - 4° 40’ 00” South as the representation of Papua tectonic.. After that the study location was divided into three blocks. The Apaumagida block represent the Permian – Triassic boundary at coordinate 135°18’11,88” East - 135°43’20,14” East and 3°56’17,59” South - 4°8’28,44” South, the Enarotali block represent the Cretaceous – Paleocene at coordinate 136°18’45,08” East - 136°29’42,00” East and 3°53’34,75” South - 4°5’16,03” South, and the Legare Mountain block that represent the Tertiary – Tertiary Quaternary at coordinate 135° 28’ 54,87” East - 135° 47’ 16,80” East and 3° 25’ 31,17” South - 3° 6’ 6,25” South. The geology structural group, there’s diffrentiation of fold, joint and fault pattern from Permian – Triassic and Cretaceous – Paleocene but there’s similarity from the Tertiary – Tertiary Quaternary. The sedimentology/stratigraphy group, there’s similarity of transgression-regression from Permian – Triassic and Cretaceous – Paleocene up Quaternary, that is transgretion. Geomorphology group, there’s strongth correlation between lineaments and river segment, regretion-korelation similarity between river segment and lineaments, similarity pattern between river segment and lineaments, similarity Mountain Front Sinousity and Mountain Front Facet, from each boundary. From the neotectonic group, there’s similarity between Bifurcation Ratio and Drainage Density from Quaternary towards older rocks beneath it. The general conclusion that the tectonic is actively role in geomorphology, transgression-regression, and geological structure development in Central Mountain area since Paleozoic era until Quaternary.****Papua sebagai pulau terbesar di Indonesia bagian timur memiliki tatanan tektonik yang kompleks, merupakan hasil interaksi lempeng Australia, Karolin, dan Pasifik. Sejarah geologi mencatat bahwa telah terjadi beberapa kali ledakan perkembangan flora dan fauna selama kurun waktu geologi dan selanjutnya diikuti beberapa kali peristiwa kepunahan massal. Selanjutnya dipisahkan tiga periode waktu geologi yang lebih dikenal dengan periode tektonik di daerah ujung barat Pegunungan Tengah tepatnya pada koordinat 135° 00’ 00” BT - 136° 30’ 00” BT dan 3° 00’ 00” LS - 4° 40’ 00” LS sebagai lokasi repesentasi kajian tektonik Papua. Ada tiga blok penelitian yakni blok Apaumagida mewakili batas zaman Prem – Trias pada koordinaat 135°18’11,88” BT - 135°43’20,14” BT dan 3°56’17,59” LS - 4°8’28,44” LS, blok Enarotali mewakili Kapur - Paleosen pada koordinat 136°18’45,08” BT - 136°29’42,00” BT dan 3°53’34,75” LS - 4°5’16,03” LS dan blok Pegunungan Legare mewakili Tersier – Tersier Kuarter pada koordinat 135° 28’ 54,87” BT - 135° 47’ 16,80” BT dan 3° 25’ 31,17” LS - 3° 6’ 6,25” LS. Kelompok struktur geologi, terdapat perbedaan pola lipatan, pola kekar dan pola sesar antara zaman Perm dan Trias, antara zaman Kapur dan Paleosen. Sedang pola lipatan, pola kekar dan pola sesar antara zaman Tersier dan Kuarter tidak berbeda nyata. Kelompok sedimentologi/stratigrafi, terdapat kesamaan proses transgresi-regresi dari Perm - Trias, Kapur – Paleosen, hingga Kuarter. Kelompok geomorfologi tektonik, terdapat hubungan yang kuat antara arah kelurusan dengan segmen sungai, terdapat perbedaan yang nyata antara korelasi-regresi kelurusan dan segmen sungai antara zaman Perm – Trias, antara zaman Kapur – Paleosen. Batas zaman antara Tersier dan Kuarter terdapat kesamaan korelasi – regresi kelurusan dan dan segmen sungai. Indeks geomorfologi tektonik yakni sinusitas muka gunung dan facet muka gunung dari masing-masing batas zaman Perm – Trias, Kapur - Paleosen dan Tersier - Tersier Kuarter terdapat kesamaan. Kelompok neotekonisme terdapat kesamaan nisbah percabangan sungai dan kerapatan sungai dari Kuarter terhadap batuan yang lebih tua di bawahnya. Kesimpulan umum bahwa tektonik berperan aktif dalam perkembangan struktur geologi, transgresi-regresi dan geomorfologi tektonik di wilayah Pegunungan Tengah sejak zaman Paleozoikum hingga Kuarter.

KRITERIA SELEKSI SORGUM MANIS BERKADAR GULA TINGGI BERDASARKAN KORELASI GENOTIPIK BEBERAPA KARAKTER DENGAN KANDUNGAN GULA LISNA KHOIRUNNISA; ANAS ANAS
Indonesian Journal of Applied Sciences Vol 3, No 2 (2013)
Publisher : Universitas Padjadjaran

PENGARUH FERMENTASI LIMBAH PADAT PENGOLAHAN BIOETANOL DARI SINGKONG (MANIHOT ESCULENTA) MENGGUNAKAN SACCHAROMYCES CEREVISIAE TERHADAP KANDUNGAN GIZI LIMBAH - Effect of Solid Waste Treatment Bioethanol Fermentation of Cassava (Manihot Esculenta) Use Saccharomyces Cerevisiae Change Nutrition Against Waste Yani Suryani; Iman Hernaman; Poniah Andayaningsih
Indonesian Journal of Applied Sciences Vol 4, No 1 (2014)
Publisher : Universitas Padjadjaran

AbstrakPengolahan bioetanol yang berbahan singkong menghasilkan limbah padat yang masih jarang dimanfaatkan dan berpotensi sebagai pakan ternak. Maka sebelum diberikan pada ternak perlu dilakukan proses pengolahan melalui fermentasi. Salah satu jamur yang memiliki kemampuan dalam proses fermentasi adalah Saccharomyces cerevisiae. Penelitian ini bertujuan untuk mengetahui peningkatan kandungan nutrien limbah padat pengolahan bioetanol dari singkong (Manihot esculenta) melalui fermentasi oleh Saccharomyces cerevisiae. Penelitian ini dilakukan dengan metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) pola faktorial 3 x 3 dengan ulangan tiga kali dengan dosis inokulum (D) masing-masing D1 = 2g, D2 = 3g dan D3 = 4g. Hasil penelitian menunjukkan bahwa peningkatan protein bervariasi dari 2% menjadi 3,05% dan penurunan kandungan kadar serat hasil fermentasi bervariasi dari 2,12%-2,36%. Kandungan HCN mengalami penurunan yang sangat signifikan dari 16,06% menjadi 0,74%. Kesimpulan bahwa fermentasi limbah padat bioetanol dengan menggunakan Saccharomyces cerevisiae dapat meningkatkan protein, menurunkan serat dan kadar HCN.Kata kunci : fermentasi, Saccharomyces cerevisiae, limbah padat bioetanol.AbstractProcessing of bioethanol made from cassava produces solid waste that is still rarely used and potentially as fodder. Therefore, before it is given to the cattle, it needs to be processed through fermentation. One of the fungi that have the ability in the process of fermentation is Saccharomyces cerevisiae. This study aims to determine the increase of nutrient content of the waste bioethanol processing from cassava (Manihot esculenta) through fermentation by Saccharomyces cerevisiae. This research was conducted with an experimental method using Completely Randomized Design (CRD) 3 x 3 factorial with three replications with a dose of inoculum (SC) respectively SC1 = 2g, 3g and SC2 = SC3 = 4g;. The results shows that increasing the protein varies from 2% to 3,05% and decreased levels of fiber content of fermented varies from 2,12% - 2,36%. The content of HCN is decreased significantly from 16,06% to 0,74%. The conclusion that solid waste bioethanol fermentation using Saccharomyces cerevisiae can increase protein, fiber and lower levels of HCN.

PENGARUH KEPEMIMPINAN PELAYAN DAN IKLIM ORGANISASI TERHADAP KINERJA PELAYANAN PUBLIK PEGAWAI NEGERI SIPIL PADA PEMERINTAH KOTA BEKASI Rony Setiawan; Suryana Sumantri; Tb. Zulrizka Iskandar; Marina Sulastiana
Indonesian Journal of Applied Sciences Vol 5, No 3 (2015)
Publisher : Universitas Padjadjaran

AbstrakFaktor-faktor yang diduga terkait dengan rendahnya kinerja pelayanan publik adalah kecenderungan kepemimpinan pejabat publik yang tidak berorientasi pada pelayanan dan iklim organisasi yang kurang kondusif. Tujuan penelitian ini adalah untuk mengetahui pengaruh kepemimpinan pelayan dan iklim organisasi terhadap kinerja pelayanan publik. Penelitian kuantitatif eksplanasi kuantitatif ini menggunakan kuisioner yang disebarkan kepada 200 Pegawai Negeri Sipil pada Pemeritah Kota Bekasi yang diperoleh melalui teknik sampling random stratifikasi. Penelitian ini menemukan adanya pengaruh yang positif signifikan kepemimpinan pelayan dan iklim organisasi terhadap kinerja pelayanan publik dan pengaruh kepemimpinan pelayan terhadap kinerja pelayanan publik melalui iklim organisasi.Kata kunci : Kepemimpinan Pelayan, Iklim Organisasi, Kinerja Pelayanan Publik, dan Pegawai Negeri Sipil Kota BekasiAbstractThe factors thought to be related to the low performance of public service leadership was the tendency of public officials who were not service-oriented and less conducive organizational climate. The purpose of this study was determined the effect of servant leadership and organizational climate on the performance of public services. This quantitative explanation of quantitative research using questionnaires technique distributed to 200 Civil Servants to the Government of Bekasi City through stratified random sampling technique. This study found out a significant positive effect of servant leadership and organizational climate on the performance of public service and the effect servant leadership on the performance of public services through organizational climate.Keywords : Servant Leadership, Organizational Climate, Performance Public Service, and the Civil Service Bekasi City

Pengaruh Pemberian Air Minum Mengandung Probiotik dan Temulawak pada Performansi Ayam Broiler Kartiawati Alipin
Indonesian Journal of Applied Sciences Vol 1, No 2 (2011)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/ijas.v1i2.1871

The research was held to find out the effect of probiotic and temulawak in drinking water on the performance of broiler. This research used 144 day old chick (DOC) final stock “Arbor Acres CP 707”. Factorial Completely Randomized Design (CRD) was used in this research. There were six treatments and four replications. The treatments were P0T0= control, P1T1= probiotic 109 cell/ml + 0,25 g/l temulawak, P1T2 = probiotic 109 cell/ml + 0,50 g/l temulawak, P1T0 = probiotic 109 cel/ml, P0T1= 0,25 g/l temulawak, P0T2 = 0,50 g/l temulawak. Probiotic was gave every day and extract temulawak was feed once time a week in drinking water during five weeks. The observed variables were feed consumption, body weight gain, feed conversion, Salmonella sp population and blood cholesterol. The result of research indicates that probiotic 109 cell/ml and temulawak 0,50 g/l in drinking water have not significant effect of broiler performance, but have decreasing effect of Salmonella population and blood cholesterol.****Penelitian ini bertujuan untuk mengetahui efek penambahan probiotik dan ekstrak temulawak dalam air minum terhadap performansi ayam broiler. Dalam penelitian ini digunakan DOC final stock “Arbor acres CP 707” sebanyak 144 ekor dengan Rancangan Acak Lengkap (RAL) pola faktorial yang terdiri dari enam macam perlakuan dan empat kali ulangan. Ke-enam perlakuan tersebut yaitu: P0T0= kontrol, P1T0 = probiotik109sel/ml,P0T1=0,25g/ltemulawak,P1T1=0,25g/ltemulawak+probiotik109sel/ml,P0T2=0,50g/ltemulawak,P1T2=0,50g/ltemulawak+probiotik109sel/ml. Penambahan probiotik diberikan dengan frekuensi setiap hari sedangkan ekstrak temulawak satu kali perminggu melalui air minum selama lima minggu. Peubah yang diamati adalah konsumsi ransum, pertambahan bobot badan, konversi ransum, populasi mikroba patogen Salmonella sp dan kadar kolesterol darah. Dari hasil penelitian dapat diketahui bahwa pemberian probiotik 109 sel/ml dan temulawak dosis 0,50 g/l air minum belum dapat meningkatkan performan ayam broiler. Namun demikian dari hasil penelitian dapat diketahui pemberian probiotik dan temulawak secara kombinasi pada dosis 0,50 g/l sebagai perlakuan yang memberikan pengaruh penurunan populasi Salmonella dan kadar kolesterol darah.

PENGARUH KONSENTRAT CAMPURAN KOHAY DAN DEDAK TERFERMENTASI DOSIS RHIZOPUS OLIGOSPORUS TERHADAP KADAR PROTEIN KASAR, SERAT KASAR, DAN LEMAK KASAR Muhammad Juraid Wattiheluw
Indonesian Journal of Applied Sciences Vol 2, No 3 (2012)
Publisher : Universitas Padjadjaran

Purpose of the study was to evaluate the effect of concentrated mixture of KOHAY and bran dose Rhizopus oligosporus inoculum on the concentration of crudes of protein, fiber, and fat crude protein content, crude fiber, and crude fat fermented product. Research was carried out by the experimental methods. The first study is based on Completely Randomized Design (CRD) 3x3 factorial. The first factor (C1) is the concentrate mixture of KOHAY and bran, namely: a combination is 90% KOHAY with 10% bran, (C2) 80% KOHAY with 20% bran, and (C3) 70% KOHAY with 30% bran. The second factor is the dosage inoculum R.oligosporus, namely: (D1) 0,5% inoculum R. oligosporus, (D2) 0,6% inoculum R.oligosporus, and (D3) 0,7% inoculum R.oligosporus. Variables research include crude protein content, crude fiber, and crude fat. The results of the research showed that the increased nutrient value than the original material. The first stage of research is the concentrate mixture of KOHAY 90% and 10% bran fermented by R.oligosporus inoculum 0,6% (C1D6) showed that increased 34,43% crude protein, crude fiber decreased 10,99%, and crude fat decreased 2,71%.

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