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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.
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Articles 402 Documents
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PENGUJIAN ANTIOKSIDAN EKSTRAK DAUN SAMBUNG RAMBAT (Mikania cordata) DENGAN METODE DPPH - Inawati
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 14, No 1 (2014): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v14i1.133

Abstract

Telah dilakukan penelitian untuk mengetahui kandungan antioksidan tanaman sambung rambat (Mikania cordata)  terutama pada bagian daunnya. Dengan mengekstraksi  daun sambung rambat secara maserasi yang menggunakan tiga jenis pelarut yaitu,  etanol 70 persen, etil asetat dan heksan untuk mengetahui kandungan saponin, alkaloid, flavonoid, steroid dan triterpenoid dari ekstrak kental melalui evaporasi. Pengujian aktivitas antioksidan dilakukan dengan metoda DPPH (1,1-difenil-2-pikrihidrazil). Secara keseluruhan ekstrak kental tersebut mengandung senyawa alkaloid, flavonoid, steroid dan saponin. Hasilnya, ekstrak kental dengan pelarut etanol 70 persen menunjukkan aktivitas  antioksidan berskala kuat dengan nilai IC50 sebesar 68,88 ppm, dimana potensi antioksidan   kali lebih kecil dari vitamin C yang memiliki IC50 sebesar 2,2284 ppm. Sedangkan dari hasil ekstrak etil asetat dan heksan tidak memperlihatkan adanya aktivitas antioksidan. Penelitian lebih lanjut perlu dilakukan dengan cara  fraksinasi agar senyawa yang diperoleh lebih murni sehingga antioksidan dari tanaman sambung rambat lebih spesifik.  Kata kunci :  Antioksidan, DPPH, Mikania cordata
PENENTUAN LOKASI BASIS DAN NON BASIS PENYEBARAN VIRUS CORONA (COVID-19) MENGGUNAKAN METODE LOCATION QUOTIENT (LQ) Toto Iswanto; Maya Widyastiti
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 22, No 1 (2022): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v22i1.4892

Abstract

The corona virus pandemic that has hit the entire world is a threat to the order of peoples lives in all field so it must be solved quickly. This study aims to determine the location of the Basic and non-Basic of the spread of corona virus in Lubuk Besar district, Province of Bangka Belitung Island. Data used is this study are the number of population and the number of COVID-19 cases in Lubuk Besar district, Bangka Belitung Province. This research is a descriptive type of research with a quantitative approach using the Location Quotient Method. The results showed that in January 2021 there are 4 villages that became the basis location for the spread of the corona virus, i.e. Kulur Village with LQ value is 1.634581, Kulur Ilir Village with LQ value  is 1.618289, Lubuk Besar Village with LQ value is 1.914148, and Perlang Village with LQ value is 1.412130, and the other villages are non-basic. In February 2021 the villages that became the basis are Kulur Ilir Village with LQ value is 1.182939, Perlang Village with LQ value is 1.376094, and Trubus Village with LQ value is 2.996931, and the other villages are non-basic location. In March 2021, Perlang Village with LQ value is 1.184505 and Trubus Village with LQ value is 5.600585 became the basis for the spread of the corona virus, and the other villages are non-basic location.
PEMANFAATAN EKSTRAK DAUN BABANDOTAN (Ageratum conyzoides) SEBAGAI BIOHERBISIDA GULMA RUMPUT TEKI (Cyperus Rotundus) Arfa Ul Hikmah; F.G Bilkis; D.G. Maelani; - Triastinurmiatiningsih
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 18, No 1 (2018): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v18i1.804

Abstract

Weeds are detrimental due to lower agricultural yields due to competition in water acquisition, nutrients, living areas, degradation of yield quality, into host pests and diseases, poisoning plants due to toxic compounds or alleles. One of the weeds on agricultural produce is grass (Cyperus rotundus) because it has allelopathic compounds. At this time alternative weed control that is environmentally minded rampant done by looking for potency of phenol group compound from other plant so that can be utilized as bioherbisida. Babandotan (Ageratum conyzoides) containing active compounds such as saponins, flavonoids, tannins, essential oils and polyphenols are safe and environmentally friendly bioherbicides. The purpose of this study to determine the concentration of  babandotan leaf extract that can inhibit the growth of weeds teki grass. Babandotan extract is made through the maceration method. Babandotan concentrations consist of 50%, 20%, 10% and 5% and control. Phytochemical test was conducted to determine the chemical content contained in babandotan leaf. The results showed that leaf extract of babadotan can inhibit the growth of grass teki at concentration 50%.Key words: Cyperus rotundus, Ageratum conyzoides, bioherbisida
UJI ANTIBAKTERI EKSTRAK DAUN SAMBUNG NYAWA (Gynura procumbens (Lour.) Merr.) DAN DAUN TAPAK LIMAN (Elephantopus scaber L.) TERHADAP Salmonella thypi Prasetyorini Djarot; Anggita Rahmadini; Novi Fajar Utami
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 19, No 1 (2019): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v19i1.1662

Abstract

This research was aimed to create aromatic candle, infused with cinnamon (Cinnamomum burmanii) bark essential oil, which is a potential repellant for house fly (Musca domestica).  The distillation of akar wangi samples was carried out at the Spice and Aromatic Research Unit by vapor distillation method for 9-12 hours. The aromatic candles were based on a mixture of solid paraffin and stearin in a 2:8 proportion, respectively, enriched with fragrant root bark essential oils with 5 formulas, namely F1 (placebo), F2 (fixative), F3 (1% essential oil), F4 (2% essential oil), and F5 (3% essential oil).  The repellency test was carried out by inserting 20 house flies in a of 50x50x50 cm container that contains a lighted aromatic candle according to the doses mentioned above, and shrimp scalps located 15 cm from the candle that functions as a bait. The calculated parameters were the hourly number of flies that were allured to the bait for 6 hours, which were related to the candles repellency and the house flys preference of candle. The repulsion ability result were 89.724%, 75.28%, 68.06%, 49.17%, 9.72% for F5, F4, F3, F2, and F1, respectively. The result also showed that the F4 sample was the most preferred sample.
EFEKTIFITAS PENGGUNAAN PUPUK CAIR LIMBAH GAS BIO TERHADAP PERTUMBUHAN POPULASI PAKAN ALAMI Tetraselmis chuii Sri Wilis
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 12, No 2 (2012): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v12i2.241

Abstract

Limbah cair pupuk gas bio merupakan produk sampingan dari proses anaerobik yang bisa dimanfaatkan sebagai sumber unsur hara untuk pertumbuhan pakan alami jenis Tetraselmis chuii. Selain mengandung unsur N, P dan K limbah cair ini juga mengandung lebih sedikit bakteri pathogen sehingga aman untuk pemupukan. Penelitian dilakukan dengan uji efektifitas penggunaan dosis terhadap rata – rata laju pertumbuhan relatif pakan alami jenis Tetraselmis chuii. Metode yang digunakan adalah metode eksperimental yang teknik pengambilan datanya melalui observasi langsung. Sedangkan rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL)  karena dalam penelitian ini semua kondisi baik bahan, media maupun kepadatan inokulum dibuat homogen. Dosis yang digunakan  yaitu  1,0 ml/l, 3,0 ml/l, 5,0 ml/l, 7,0 ml/l dan 9,0 ml/l, sedangkan kepadatan inokulum Tetraselmis chuii  yang ditebar adalah 7,0 x 104 sel/ml.  Hasil pengujian efektifitas dosis limbah cair gas bio menunjukkan bahwa dosis 9,0 ml/l memberikan laju pertumbuhan relatif populasi Tetraselmis chuii yang paling tinggi yaitu 0,707.104 sel/ml. Dari analisis keragaman  diperoleh bahwa perlakuan dosis pupuk cair limbah gas bio  mem--berikan pengaruh yang sangat nyata terhadap pertumbuhan populasi Tetraselmis chuii.  Kata Kunci : Dosis Pupuk Cair, Limbah Gas Bio, Pertumbuhan, Tetraselmis chuii
KERAGAMAN TUMBUHAN INVASIF DI HUTAN PENELITIAN DRAMAGA BOGOR Purwohadi Purbo Priyono; . Ismanto; Adi Susilo
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 21, No 2 (2021): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v21i2.3948

Abstract

Invasive Plant is species that dominate an area or places, both are native species and non-native species. Invasive Plants is one of the crucial problems in ecosystem management because it is a major component of global environmental change, threats to biodiversity and local species, as well as, causes of changes in nutrient cycles, fire cycles, hydrological cycles, and energy balance. The purpose of this study is to prove that plants far from the road are more commonly invaded by invasive species and that physical and biological factors affect the growth of invasive species. The research was conducted at the Dramaga Research Forest, Bogor from June 2020 to August 2020. This study used a vegetation analysis method, which is using nesting plots that have a size of 2 x 2 m for seedlings, 5 x 5 m for saplings, 10 x 10 m for poles, and 20 x 20 m for trees. Plots were made in two locations, close to the road and far from the road. The location close to the road was 5 - 10 meters, and far from the road was 70 - 80 meters The total plots made in this study were 16 plots in each size. The results showed that the highest diversity was found at the level of seedlings, namely medium status (2.00-3.00) according to the Shannon-Wiener index. The results showed that the statistical analysis of the diversity of weeds in the Dramaga Research Forest were not significantly different, between plants close to the road and plants far from the road. This is causing by physical factors that are not significantly different based on statistical tests. The growth of invasive plant species is influenced by several factors, such as light intensity, temperature, humidity, and soil pH. Keywords: Dramaga Research Forest Bogor, Invasive species, Vegetation analysis
ANGGREK TANAH DI KAWASAN TAMAN WISATA ALAM SICIKE-CIKE SUMATERA UTARA DAN UPAYA KONSERVASINYA DI KEBUN RAYA SAMOSIR Sri Hartini
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 17, No 2 (2017): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v17i2.761

Abstract

Terestrial orchid research has been conducted in the area of Sicike-cike Nature Park, North Sumatra. The research was conducted in with exploration method. No less than 12 types of terestrial orchids are found in this region, namely Spathoglottis plicata Blume, Spathoglottis aurea Lindl., Phaius callosus (Blume) Lindl., Calanthe triplicata Ames, Calanthe pulchra (Blume) Lindl., Calanthe chrysoglossoides J.J. Sm., Calanthe aurantiaca Ridl., Cymbidium ensifolium (L.) Sw., Arundina graminifolia (D.Don) Hochr., Neuwiedia zollingeri Rchb.f. var. zollingeri Rchb.f., Paphiopedilum tonsum (Rchb.f.) Stein, and Liparis sp. All types of orchids are then grown in the nursery of Samosir Botanical Gardens for ex-situnya conservation efforts. Two months after planting almost all species grow well, even some of them have produced flowers. Orchids A. graminifolia, S. aurea and S. plicata are the best-growing species. Key words : Terestrial orchid,  Sicike-cike Nature Park, conservation, Samosir Botanical Garden
UJI DAYA HAMBAT SEDIAAN SABUN CAIR EKSTRAK DAUN PALA (Myristica fragrans houtt) TERHADAP Propionibacterium acnes dan Staphylococcus aureus Atika Pratiwi; Ella Noorlaela; Siti Mahyuni
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 19, No 2 (2019): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v19i2.1649

Abstract

Bacteria that cause acne include Staphylococcus aureus and Propionibacterium acnes. Nutmeg leaves are plants that contain antibacterial substances that can inhibit bacterial growth. The purpose of this study is to make soap preparations from nutmeg leaf extracts and find out the formula that is most effective in inhibiting the growth of P.acnes and Staphylococcus aureus bacteria. Nutmeg leaves were extracted using maceration method with 96% ethanol solvent. Liquid soap preparations are made in 4 formulas. Antibacterial activity test was carried out by the dilution method for MIC and disk diffusion methods to determine LDH liquid soap preparations. Based on the test of the antibacterial activity of 96% ethanol extract, nutmeg leaves have the ability to inhibit the growth of Staphylococcus aureus with a MIC value at a concentration of 0.5% and negative on Propionibacterium acnes. Liquid soap preparations in F1 (extract 2%) have LDH values of 9.87 ± 0.41 mm; F2 (extract 4%) has an LDH value of 10.50 ± 0.35 mm; F3 (extract 8%) has an LDH value of 10.70 ± 0.25 mm; F4 (extract 10%) has an LDH value of 11.87 ± 0.25 mm. The highest LDH value is F4 with a concentration of 10% extract, LDH F4 is a formula that has the most antibacterial activity approaching LDH positive control JF Sulfur which has an LDH value of 13.25 ± 0.25 mm
UJI EFEKTIVITAS ANTIBAKTERI PERASAN SEGAR DAN SERBUK UMBI BAWANG PUTIH (Allium sativum L.) TERHADAP BAKTERI Salmonella typhi Oom Komala; Herra Indra Asmara; Ike Yulia Wiendarlina
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 14, No 2 (2014): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v14i2.216

Abstract

Herbs and spices are very important and useful as therapeutic agent against typhoid fever. Increasing multidrug resistance of pathogens forces to find alternative compounds for treatment of these infectious diseases. Garlic contained volatile oil and alisin which containing sulfur. The present study was to evaluate the antibacterial potential of fresh and powder of garlic (Allium sativum L.) extracts against the bacterial pathogens  Salmonella typhi  and describes the phytochemical analysis. Methods: In the present study the antimicrobial potency of fresh and powder of garlic  was carried out by  disc  diffusion and dilution method against Salmonella typhi bacterial and qualitatively tested for the presence of chemical constituents for the identification of flavonoids, saponins, tannins, alkaloids by the method described previously. The results of the present study showed the  fresh and powder of garlic (Allium sativum L.) same as susceptible  for Salmonella typhi. The (minimum inhibitory concentration) MIC of fresh of garlic  at 10% and the powder of garlic  at 8%. The most effective concentration of fresh and powder of garlic  for Salmonella typhi is 90 %.  Phytochemical screening of ethanol extract of Allium sativum L revealed the presence of various bioactive components of flavonoids, saponins, tannins and alkaloids were the most prominent.   Key words : Allium sativum, Antibacterial, Salmonella typhi
STUDI PREPARASI TIO2 NANOTUBE SERBUK DENGAN TEKNIK RAPID BREAKDOWN ANODIZATION Linda J Kusumawardanil; Ivandini Tribidasari; Jarnuzi Gunlazuardi
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 16, No 1 (2016): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v16i1.56

Abstract

Technique of Rapid Breakdown Anodization (RBA) is the new anodisasi technique introduced in 2009 as super fast synthesis methods for producing TiO2 powder. The development of this technique continues to be done in order to obtain the best quality of TiO2 powders according to the needs of the application. At this time the experiment reported the existence of the influence the granting of potential anodisasi currently underway against TiO2 powder produced good particle size, surface area and shape of the morfologinya. In addition, observations on the reaction time is also conducted to take into account the efficiency. From the results of the experiment, potential variations below 20 V, i.e., 10, 13, 14 and 15 V, it can be reported that the plate It can be transformed into the perfect TiO2 powder on electrochemical reaction of potential system 15 V for approximately 3 hours in perchloric acid media 0.15 M. Whereas the process of potential reactions on 10, 13 and 14 V does not produce TiO2 powder significantly in the time of observation for 7 hours. So further study focused on the synthesis of TiO2 powder results in a potential 15 V which will be compared with the potential 20 V, which is a potential that is used when this technique was first introduced. From the results of the experiment, reported on the potential RBA engineering 15 V produces TiO2 powder with a size outer diameter are smaller, i.e. an average of 84 nm with a more uniform particle size and surface area of the Crystal results kalsinasi at 500oC generated on 15 potential V is wider with a more uniform morphology, i.e. 69.723 g/m2 compared to 20 V , i.e. 63.824 g/m2. This will provide a significant influence in the activity of the fotokatalitik used for the fotodegradasi, as well as its application as DSSC (Dye Sensitized Solar Cells).  KeyWord  :Rapid Breakdown Anodization (RBA), Anodisasi, TiO2, TiO2 Nanotube-Serbuk

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