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EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Published by Universitas Pakuan
ISSN : 14419447     EISSN : 26864894     DOI : 10.33751
Core Subject : Science, Education, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Mathematics
Ekologia adalah jurnal ilmiah yang diterbitkan untuk mengakomodasi tulisan hasil penelitian bagi sivitas akademika Universitas Pakuan khususnya dan instansi lain di luar Universitas Pakuan pada umumnya. Jurnal ini memuat artikel primer yang bersumber langsung dari hasil penelitian Ilmu Dasar dan Lingkungan Hidup. Ekologia diterbitkan dua kali dalam setahun yaitu pada bulan April dan Oktober oleh Fakultas Matematika dan Ilmu Pengetahuan Alam-Universitas Pakuan. Semoga Jurnal ini bermanfaat bagi perkembangan hasanah ilmu pengetahuan.
Arjuna Subject : -
Articles 402 Documents
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PEMODELAN SISTEM PEWARISAN GEN MANUSIA BERDASARKAN HUKUM MENDEL DENGAN ALGORITMA BRANCH AND BOUND Tosida, Eneng Tita; Utami, Dian Kartika
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Abstract

Perkembangan teknologi informatika saat ini telah melintasi berbagai bidang dan salah satunya adalah dimanfaatkan untuk memodelkan kondisi biologis manusia melalui ilmu genetika. Prinsip tentang gen dan pewarisan sifat yang dikukuhkan dalam Hukum Mendel dapat dimodelkan dengan Algoritma Branch and Bound melalui penggunaan Bahasa Pemrograman Visual Basic 5. Model sistem yang dibangun melalui pendekatan System Development Life Cycle ini dimaksudkan untuk memudahkan proses pewarisan gen dan penggenerasian, dengan visualisasi berupa diagram pohon dan grafik yang menunjukkan peluang pewarisan gen.  Berbagai istilah yang umum digunakan dalam sistem pewarisan gen pada manusia juga diinformasikan dalam model sistem ini dan dikemas dalam bentuk kamus data, sehingga memudahkan pengguna dalam pemanfaatan model ini. Keyword :   Model,   Gen,   Hukum   Mendel,   Algoritma    Branch   and   Bound,   System Development Life Cycle
PEMODELAN DOWNSCALING LUARAN GCM DAN ANOMALI SST NINO 3.4 MENGGUNAKAN SUPPORT VECTOR REGRESSION (Studi Kasus Curah Hujan Bulanan Indramayu) Maesya, Aries
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Abstract

The objective of this research is to develop a downscaling model GCM output and SST anomaly Nino 3.4 as input in the training to predict a rainfall monthly in Indramayu. The techniques of a downscaling is used for a phenomenon indicators of El Nino and Southern Oscillation (ENSO) climate anomaly such as a Global Circulation Model (GCM) and Sea Surface Temperature (SST) nino 3.4 are commonly used as a primary study learn and understand the climate system. This research propose a method for developing a downscaling model GCM output and SST anomaly Nino 3.4 by using Support Vector Regression (SVR). The research result showed that GCM output and SST anomaly Nino 3.4 can be approach the average value of monthly rainfall. The best result of prediction is Bondan station which has average correlation that is 0.700. Kata kunci : Downscaling, ENSO, Luaran GCM, SST Nino 3.4 and SVR
KUALITAS AIR DAN KEANEKARAGAMAN PLANKTON DI DANAU CIKARET, CIBINONG, BOGOR Soliha, Eha; Rahayu, S.Y. Srie; Triastinurmiatiningsih, -
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Abstract

Lake Cikaret is the largest lake in the village of Cikaret in district of Cibinong, Bogor district which is also a reserve of water for residents. The Lake is thought to have experienced pollution due to the inclusion of various types of waste from households and activities waste disposal by visitors. Research done by the method of field survey, the research is divided into 3 point i.e. inlet, middle and outlet. The results showed the temperature 25 oC-38oC, pH values in the range 5-7, the value of dissolved oxygen content ranged between 5.9-14.5, BOD values ranged from 5.6-7.5 mg/liter and CO2 values ranging between 11.3-13.5 mg/l due to the pollution of the natural. Net primary productivity of photosynthesis 3.2 mg/l, gross 4.3 mg/l of photosynthesis and respiration 1.1 mg/l. Plankton found Chlorophyceae, Cyanophyceae and composed Bacillariophyceae. belong to the phytoplankton and zooplankton 5 classes, namely Euglenoidae, Dapniidae, Maxillo-poda, crustaceans and Monogononta. The value of diversity index includes low range 0.05-0,149. Equity index value on Lake Cikaret range 0,009-0,064. The index value of the dominance on Lake Cikaret range 0.01-0,972. Key words : Lake Cikaret  Cikaret,water quality, plankton
PEMANFAATAN LIMBAH BUNGA JANTAN KLUWIH SEBAGAI LARVASIDA NYAMUK Aedes Aegypti Mulyati, Ade Heri; Widiastuti, Diana; Ratih, Putry Sri
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Abstract

The breadfruit tree Artocarpus altilis species is a species that is often used fruit as a food source , while the stems and roots of this plant can be used as a medicinal plant. Around the area of Sukabumi, west Java people use the bread fruit tree flowers as a insect repellent. The purpose of this study is to determine the potential of breadfruit tree stamens extracts as larvicides against Aedes aegypti mosquito larvae and determine the optimum concentration of extract of stamens breadfruit tree which can be used effectively as Aedes aegypti mosquito larvicides. Determine larvicidal activity of stamens breadfruit tree (Artocarpus altilis) includes : sample preparation and phytochemical test , sextraction , larvicidal test , toxicity testing and data processing . Comparison test was done to compared the activity of the male flower extracts as larvicides with breadfruit tree abate powder against mosquito larvae , as well as the toxicity of the statistical test using the LC50.Phytochemical test results positive breadfruit tree botanicals stamens contain tannins , saponins , and triterpenoids . Water content in the crude drug obtained 12.04 % . Breadfruit tree extract of stamens is not harmful to humans . This study getting the LC50 of 0.25 % at phase n - butanol extract , and 1 % in the water phase extract. Key words : Waste, Breadfruit,  Aedes aegypti, Artocarpus altilis
EFEKTIVITAS KOMBINASI EKSTRAK DAUN MENGKUDU (Morinda citrifolia ) dan ASAM KANDIS SEBAGAI PENURUN BERAT BADAN PADA TIKUS PUTIH JANTAN GALUR Sprague-Dawley Anggraena, Shinta Suci; Rahminiwati, Min; Effendi, E. Mulyati
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Abstract

This study aimed to determine the effect of a combination of extracts of Noni leaves (Morinda citrifolia L) and fruit kandis (Garcinia cowa Roxb) on body weight of male rats induced by high- fat calories food Test animals were used 25 rats male Sprague Dawley strain age of 2 months with body weight ± 200 g. White mice were divided into 5 groups of 4 rats each. The treatment committed agains an obesity rats. The treatment group consisted of rats doses of 1 (8,75mg/kgBB noni leaves ekstract and sour fruit kandis 7mg/kgBB), dose II (4,75 mg/kgBB noni leaves ekstract and sour fruit kandis 3,5mg/kgBB), dose III (17,5 mg/kgBB noni leaves ekstract and sour fruit kandis 14mg/kgBB), the positive control group were given Orlistat and negative group were only given food to eat and drink. The observed parameters include weight loss, abdominal width, body length, skin fold, body mass indeks. The results showed that noni leaf extract and fruit kandis can be used as a weight loss with the most effective dose is 17,5 mg /kg BB noni leaf + 14 mg/kg BB fruit kandis with the most effective treatment is 14 days. Key words : Noni Leaf and fruit kandis, Feeding a High-Fat Calories,  Obesity Parameters, Rats male Sprague Dawley.
PENGARUH PEMBERIAN KUDAPAN TERHADAP STATUS GIZI DAN STATUS ANEMI SISWA SDN PASANGGRAHAN 2 PURWAKARTA (The effect of snack intervention on student nutritional and anemia status at Pasanggrahan 2 elementary school, Purwakarta District) Tanziha, Ikeu; Prasojo, Gita; Rahmawati, Irawati; -, Maharani; Rusmawati, Dwi
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Abstract

The objective of this study was to analyze the effect of snack intervention on student nutritional and anemia status at Pasanggrahan 2 elementary school. Design study was experimental one–group pretest-postest design and was conducted at Pasanggrahan 2 elementary school in Purwakarta from August to December 2012.  The total number of fifty three students were selected purposively. The primery data were collected namely: household social economi and student characteritics, food habbit, nutritional and anemia status. The result of study showed that the energy and protein contribution to average of students nutrition adequate was 17.9% and 23.6% respectively. While the contribution of snack energy and protein to average of daily total nutrition consumption was 26.7% and 31.3% respectively. There was significant difference of student nutritional and anemia status before and after snack intervention as additional school feeding.
VARIASI MORFOLOGI DAN ANATOMI Sargassum spp. DI PANTAI BAYAH BANTEN Triastinurmiatiningsih, -; Ismanto, -; Ertina, -
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Abstract

Sargassum is one of the genus including in Class Phaeophyceae. Sargassum spp. are found as many as 150 species in zone waters tropic, subtropic and frigid zone. This research to know variation morphology and anatomy Sargassum spp. which found in Bayah Beach. Result of the research will giving knowledge for different Sargassum species based on variation morphology and anatomy. Research methods divided of three work phases that are collect in the field, morphology observation and anatomy observation. Collect alga in the field with execute transek method, morphology observation with differents variation formed from cauloid, branching type, filoid, cryptostomata, midrib (middle vein filoid), vesicle (float) dan receptacle (reproduction organ). Anatomy observation with measure length and wide cells, analize cells shape, counting cells amount (enlargement 160 x), from each parts cortex and medulla by cauloid and filoid Sargassum spp. Based observation results are found 7 species Sargassum that are Sargassum binderi, S. cinereum, S. echinocarpum, S. duplicatum, S. plagyophyllum, S. crassifolium dan Sargassum sp. which have in Bayah Beach, South Banten. Such a thing resulted is show that have morphology variation supported by anatomy variation. Key word : Sargassum, morphology and anatomy, Bayah
FORMULASI DAN UJI STABILITAS GRANUL EFERVESEN SARI BUAH SIRSAK (Annona muricata L.) Prasetyorini, -; Wiendarlina, Ike Yulia; Tiradisuci, Murni
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Abstract

This event will be based on research by the large number of reports on the benefits of soursop for various diseases especially antihipertensi and antihiperuresemia. Forms need to be developed so that a more practical preparations and ketersediannya continuous, one of which is in the form of effervescen granule juice. This research aims to find out whether the soursop fruit juice can be a formulation in granule material of efervesen who meet the requirements of quality, standards and terms of efervesen granule and making it acceptable in society. In the study of fruit juice made with the soursop fruit flesh filter using Batiste, juice drained using Freezedryer with the addition of maltodekstrin 20%. The powder is then made 3 fruit formula granule effervesent with the difference of acid-catalyzed and the manufacturing process is done by the method of smelting using alcohol 70% without binder. Test results show the BSLT fruit pollen have toxic effects against larvae of shrimp Artemiasalina Leach with LC50 108.914 ppm. The results of the evaluation of the third shows the formula for granule corner quietly and solubility are eligible, cohesive, and the granule flow values test froth above 70%, the test results of licentious formula2 has the most preferred taste. Stability test for efervesen granule 8 weeks the most stable at a temperature of 15 ° C containing Sodium ion levels 3, 97g/100 ggranul, potassium of 0, 24g/100 ggranul, 2, 19mg SAG polyphenols/ggranul and vitamins C51, 91mg/100ggranul. Key words : granul, efervesen, stabilitas, sirsak
KAJIAN PERUBAHAN IKLIM DAN KENAIKAN MUKA AIR LAUT DI KAWASAN PESISIR (STUDI KASUS : KABUPATEN TUBAN) Joesidawati, Marita Ika
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Abstract

Perubahan iklim menjadi kajian yang penting  dan sangat menarik pada beberapa  tahun terakhir, karena mengakibatkan kenaikan suhu udara dan kenaikan muka air laut. Tujuan  makalah ini adalah untuk mengkaji model dan skenario iklim yang sesuai diterapkan  sehingga dapat menggambarkan adanya perubahan iklim khususnya wilayah lokal dan  mengembangkan analisis dampak kenaikan muka air laut di kawasan  pesisir. Dalam Makalah ini pemodelan iklim menggunakan perangkat lunak  MAGICC/SCENGEN 5.3(Model sirkulasi global CSIRO, dengan skenario A2-AIM dan B2-AIM) sedangkan kenaikan muka  laut dengan memanfaatkan data Data Sea Level Anomaly dari satelit Altimeter Jason 1A. Hasil pemodelan proyeksi perubahan suhu rata-rata dan perubahan  presipitasi bulanan menunjukkan pola yang teratur meningkat secara linier dan Berdasarkan trend kenaikan nilai SSHA dari satelit altimetri Jason-1 yang diekstraksi dari hasil interpolasi lintasan satelit diperoleh rata-rata kenaikan muka laut relatif selama 7 tahun (2002-2009) sebesar 11,1 mm/tahun. Skenario yang sesuai dengan kondisi daerah pesisir Kabupaten Tuban adalah skenario B2AIM. Hasil  pemodelan MAGICC sesuai dengan skenario B2AIM menunjukkan laju rata-rata kenaikan muka air laut dari tahun 1990-2050 adalah sebesar 0.61 meter.  Hasil pemodelan SCENGEN sesuai dengan skenario B2AIM, menunjukkan perubahan curah hujan yang cukup besar pada bulan Juli, Agustus, September dan Oktober, dan perubahan kenaikan temperatur hasil pemodelan SCENGEN yaitu sebesar 0.19⁰C  1.56⁰C  pada tahun 2050.  Kata kunci : Perubahan Iklim, Kenaikan Muka Laut, Magicc/Scengen, Data  Altimetri Jason-1A
PERBANDINGAN KONSENTRASI HIDROKOLOID DAN KONSENTRASI ASAM SITRAT DALAM MINUMAN JELI SUSU SESUAI MUTU DAN KUALITAS Mulyati, Ade Heri; Nuraeni, Farida; Dwiyana, Dini Restu
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Abstract

In the manufacture of jelly milk drinks are necessary also other additional ingredients such as sugar is used as a sweetener in the manufacture of jelly while working to ease hydrocolloid dispersion. Potassium citrate is used for auxiliary materials, especially the formation of gel texture carrageenan, citric acid is used as a substance other than flavor in soft drinks, used also as an inhibitor of microbial growth in milk jelly drinks.An analysis of milk jelly beverage products, including the organoleptic analysis of where the testing is done against the panelists to determine the level of liking for the product. Viscosity to determine the viscosity of the product before the final product, the analysis is conducted to determine the strength of the gel on which the final product gel strength will be measured by looking at the gel fracture when pressed with a certain weight. PH measurement is necessary to know the level of acidity flavor obtained from addition of citric acid and then measuring ° brix to see the level of sweetness of the product because of sweetener used is pure sugar. In this study the analysis of protein levels because the products contain milk which is produced by converting nitrogen compounds into ammonium sulfate and then elaborated by NaOH, whereas the liberated ammonia was tied with H3BO4 and then titrated with HCl Key words: Gels, hydrocolloid, sugar, potassium citrate, citric acid, organoleptic,  viscosity, gel strength, pH, ° brix, protein levels

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