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Elkawnie
Published by Universitas Islam Negeri Ar-Raniry Banda Aceh
ISSN : 24608912     EISSN : 24608920     DOI : -
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Engineering
Elkawnie is a journal of Integration Science and Technology with Islam. It's covering research and technology in the field of study of Architecture, Biology, Chemistry, Environmental Engineering, ICT, Physical Engineering and other science and technology field. In particular, Elkawnie's journal discusses the development of research and technology in contributing to development as part of Muslim scientists in the academic sphere.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 460 Documents
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Food Habits and Niche Breadth of Three Species of Fish Catchs in Aneuk Laot Lake, Sabang Aceh Nurfadillah Nurfadillah; Irma Dewiyanti; Muhammad Akbar Maulana; Siswani Sari; Hasfiandi Hasfiandi
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.10536

Abstract

Abstract: Aneuk Laot Lake becomes a source of livelihood for people who work as fishermen around the lake. This research was conducted in June 2020. The study aims to analyze the food habits, niche breadth, and niche overlap of tilapia (Oreochromis niloticus), mujair (Oreochromis mossambicus), and louhan (Cichlasoma trimaculatum) in Aneuk Laot Lake. The method used in this study is the survey method. Fishing is done with the use of ring trawls of 2 and 3 inches. Tilapia, Mujair, and Louhan fish that have been caught were dissected and their digestive organs were preserved using 10% NBF. The results showed that Tilapia (O. niloticus) are omnivorous with phytoplankton as their main food and an index of preponderance value of 54.72%, Mujair (O. mossambicus) are omnivorous with the main food in the form of phytoplankton and the index of preponderance value is 50.15%, and louhan (C. trimaculatum) is carnivorous with the main food in the form of small fish and the index of preponderance value is 99.35%. The value of the niche breadth of Tilapia is 2.89, Mujair is 2.66, and Louhan is 1.07. The niche overlap value of food between Tilapia and Mujair is 0.96, meaning that it has great potential to utilize the same type of food, whereas Louhan's niche overlap index with Nila and Mujair is 0.01, indicating that it has very little competition in using the same food.Abstrak: Danau Aneuk Laot menjadi sumber mata pencaharian bagi masyarakat yang berprofesi sebagai nelayan di sekitar danau. Penelitian ini dilaksanakan pada bulan Juni 2020 di Danau Aneuk Laot, Sabang. Penelitian ini bertujuan untuk menganalisis kebiasaan makan, luas relung, dan tumpang tindih makanan ikan nila (Oreochromis niloticus), mujair (Oreochromis mossambicus), dan louhan (Cichlasoma trimaculatum) di Danau Aneuk Laot. Metode yang digunakan dalam penelitian ini adalah metode survei. Penangkapan ikan dilakukan dengan menggunakan pukat cincin ukuran 2 dan 3 inchi. Ikan Nila, Mujair, dan Louhan yang telah ditangkap dibedah dan organ pencernaannya diawetkan menggunakan NBF 10%. Hasil penelitian menunjukkan bahwa ikan Nila (O. niloticus) adalah omnivora dengan makanan utama fitoplankton dan nilai indeks preponderance sebesar 54,72%, Mujair (O. mossambicus) adalah omnivora dengan makanan utama berupa fitoplankton dan indeks nilai preponderance adalah 50,15%, dan Louhan (C. trimaculatum) merupakan karnivora dengan makanan utama berupa ikan-ikan kecil dan indeks nilai preponderance sebesar 99,35%. Nilai luas relung Nila sebesar 2,89, Mujair sebesar 2,66, dan Louhan sebesar 1,07. Nilai tumpang tindih makanan antara Nila dan Mujair sebesar 0,96 artinya memiliki  potensi yang besar dalam memanfaatkan jenis makanan yang sama sedangkan indeks tumpang tindih Louhan dengan Nila dan Mujair sebesar 0,01 yang berarti memiliki kompetisi yang sangat kecil dalam memanfaatkan makanan yang sama.
The Extraction of Curcuminoids From Ethanol Extract of Yellow Turmeric (Curcuma longa L) and Activity Test on P-388 Murine Leukemia Cells Ida Wati; Vibianti Dwi Partiwi; Maya Ramdianti Musadi
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.10720

Abstract

Abstract: Research on the Extraction of Curcuminoids from Ethanol Extract of Yellow Turmeric (Curcuma longa L) and its Activity Test on P-388 Murine Leukemia Cells has been carried out. This study aims to determine the per cent yield, solvent concentration, activity of P-388 murine leukemia cells and pH of the number of curcuminoids produced in ethanol extract. The curcuminoids were obtained by the extraction process through the soxhlet method using 70 and 96% ethanol solvent with a ratio of sample to solvent of 1:8 with variations in operating time for 3, 6, 9 and 12 hours. The absorbance of curcuminoid extract was measured to determine the concentration of curcumin. The cytotoxic test on murine leukemia P-388 cells used the Microculture Tetrazolium Technique (MTT) method. The results obtained were yellow turmeric curcuminoid compounds using 96% ethanol solvent at an extraction operating time of 9 hours. The largest extract yield was 21.15% with a concentration of 1121.10 ppm, which has activity against murine leukemia P-388 cells with an IC50 of 6.15 g/mL have the potential as anticancer leukemia, and dye analysis at acidic pH (2,4,6) is yellow, while alkaline pH (9,12) is brownish red as a natural food coloring.Abstrak: Penelitian ekstraksi kurkuminoid dari ekstrak etanol kunyit kuning (Curcuma  longa L) dan uji aktivitasnya terhadap sel murine leukimia P-388 telah dilakukan. Penelitian ini bertujuan untuk mengetahui rendemen, konsentrasi pelarut, aktivitas sel murine leukemia P-388 dan pH terhadap jumlah kurkuminoid yang dihasilkan pada ekstrak etanol. Kurkuminoid diperoleh dengan proses ekstraksi dengan  metode sokletasi menggunakan pelarut etanol 70 dan 96% dengan perbandingan sampel dan pelarut 1:8 variasi waktu operasi selama 3, 6, 9 dan 12 jam. Ekstrak kurkuminoid diukur absorbansi untuk mengetahui konsentrasi kurkumin. Pengujian sitotoksik terhadap sel murine leukimia P-388 dengan metode Microculture Tetrazolium Technique (MTT).  Hasil yang diperoleh senyawa kurkuminoid kunyit kuning menggunakan pelarut etanol 96%  pada waktu operasi ekstraksi 9 jam rendemen ekstrak terbesar 21,15% dengan konsentrasi 1121,10 ppm, memiliki aktivitas terhadap sel murine leukimia P-388 dengan IC50 sebesar 6,15 μg/mL berpotensi sebagai antikanker leukemia, dan analisis zat warna pada pH asam (2,4,6) berwarna kuning, pada pH basa (9,12 ) berwarna merah kecoklatan sebagai pewarna alami makananan.
Screening of Antibacterial and Antioxidant Activities for Safflower Water Extracts to Increase Immunity During a Pandemic Amalyah Febryanti; Fitria Azis
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.10934

Abstract

Abstract: Viral infection is the multiplication of viruses in the body. Viruses can reproduce with the help of a host. Viruses infect a host by inserting their genetic material into cells to duplicate their particles. Coronavirus is a type of virus. The coronavirus identified in 2019, SARS-CoV-2, has caused a pandemic of the respiratory disease called COVID-19. Screening of the antibacterial and antioxidant activity of safflower aqueous extract has to be carried out to seal immunity against the virus. The purpose of this study was to determine the antibacterial and antioxidant activity of Kasumba turate water extract. The method used in this study was an experiment consisting of the preparation of Staphylococcus aureus suspensions, the preparation of safflower aqueous extract, phytochemical screening of safflower aqueous extract, a study of the functional group of safflower aqueous extract using FTIR, and the determination of antibacterial and antioxidant activities. The results obtained show that the extract has physical characteristics of a brownish yellow color and the characteristic odor of Kasumba turate. A phytochemical study verified that the aqueous extract of safflower contains alkaloids, flavonoids, and tannins. Analyze FTIR for the expected presence of functional groups including -OH, =CO, and -NH. The best antibacterial activity under three conditions was shown at a 5% extract concentration with a solvent heating temperature of 90 ºC for 15 minutes which gave abroad an inhibition zone. Safflower aqueous extract indicated DPPH radical scavenging activity with an IC50 value of 965.33 mg mL-1. Furthermore, safflower aqueous extract has the potential for antioxidant activity, but it has low antibacterial activity. However, this study supports making Safflower a natural colorant in food and recommends using Safflower as a tea or herbal drink that provides natural antioxidant effects during the pandemic.Abstrak: Skrining aktivitas antibakteri dan antioksidan ekstrak air kasumba turate dilakukan. Metode yang digunakan dalam penelitian ini adalah metode eksperimen yang terdiri dari preparasi suspensi Staphylococcus aureus as test bacteria, preparasi ekstrak air kasumba turate, skrining fitokimia ekstrak air kasumba turate, studi gugus fungsi ekstrak air kasumba turate menggunakan FTIR, penentuan aktivitas antibakteri, dan penentuan aktivitas antioksidan. Hasil yang diperoleh menunjukkan bahwa ekstrak memiliki ciri fisik warna kuning kecoklatan dan bau yang khas. Studi fitrokimia membuktikan bahwa ekstrak air kasumba turate mengandung alkaloid, flavonoid, dan tanin. Analisis FTIR diharapkan adanya gugus fungsi yang meliputi -OH, =CO, dan -NH. Aktivitas antibakteri terbaik pada ketiga kondisi ditunjukkan pada konsentrasi ekstrak 5% dengan suhu pemanasan pelarut 90 ºC selama 15 menit yang memberikan zona hambat luas. Ekstrak air safflower menunjukkan aktivitas penangkapan radikal DPPH dengan nilai IC50 1250 mg mL-1. Selain itu, penelitian ini mendukung untuk menjadikan kasumba turate sebagai pewarna alami pada makanan dan merekomendasikan penggunaan kasumba turate sebagai teh atau minuman herbal yang memberikan efek antioksidan alami selama masa pandemi.
Characterization of Carrageenan Edible Film With Natural Antioxidant From Syzygium Cumini Leaf Extract (SCLE) Reni Silvia Nasution
Elkawnie Vol. 8 No. 2 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i2.10966

Abstract

Abstract: Edible film have received considerable attention because of their advantages including their use as edible packaging material over synthetic films. This study aimed to characterize an edible film based on carrageenan and Syzygium cumini leaf extract (SCLE) as a natural antioxidant. The addition of SCLE was carried out with various concentrations of 0, 5, 10 and 15%. Characterization was carried out by measuring the physical properties, mechanical properties and antioxidant activities. The result showed that the presence of SCLE gave an increase in thickness and a decrease in solubility and water content compared to the edible film without the addition of SCLE. The addition of 5% SCLE resulted in a slight increase in tensile strength and a reduction in elongation at break. The edible films also showed an increase in antioxidant activity with the addition of SCLE where the highest antioxidant activity was at the addition of 15% SCLE. The incorporation of natural antioxidants in edible films can be a potential strategy to produce promising active packaging to extend product shelf life in the food packaging industry.Abstrak: Edible film telah mendapat banyak perhatian karena keuntungannya sebagai kemasan yang dapat dimakan  dibandingkan film sintetik. Tujuan dari penelitian ini adalah untuk mengkarakterisasi edible film berbasis karaginan dan ekstrak daun Syzygium cumini (SCLE) sebagai antioksidan alami. Penambahan SCLE dilakukan dengan variasi konsentrasi 0, 5, 10 dan 15%. Karakterisasi dilakukan dengan mengukur sifat fisika, sifat mekanik dan aktivitas antioksidannya. Hasil menunjukkan bahwa keberadaan SCLE memberikan peningkatan pada ketebalan dan penurunan pada kelarutan dan kadar air dibandingkan edibe film tanpa penambahan SCLE. Penambahan SCLE sebanyak 5% menghasilkan sedikit peningkatan pada kuat tarik dan pengurangan pada perpanjangan putus. Edible film juga menunjukkan peningkatan aktivitas antioksidan dengan penambahan SCLE dimana aktivitas antioksidan tertinggi pada penambahan 15% SCLE. Penggabungan antioksidan alami pada edible film dapat menjadi strategi potensial untuk menghasilkan kemasan aktif yang menjanjikan untuk memperpanjang umur simpan produk pada industri kemasan makanan.
The Potency of Bioplastic Polyhydroxyalkanoate (PHA) Producing Bacteria Isolated From Palm Oil Mill Waste Nur Haedar; Donny Suherman; Zasarwati Dwyana; Heriadi Heriadi; Mashuri Masri
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.11145

Abstract

Abstract:  Polyhydroxyalkanoate (PHA) is a polymer made up of biodegradable plastics that can be synthesized by microorganisms from various substrates that contain lots of carbon sources including fatty acids and sugars. One of the substrates that contain a lot of carbon sources is waste from palm oil processing plants. PHA-producing bacteria can take advantage of excess carbon sources in palm oil waste in the form of fatty acids to be converted into PHA. This study aims to determine the potential of bacteria isolated from palm oil mill waste to produce polyhydroxyalkanoates (PHA) and to determine the optimum time required for bacteria to produce PHA. Optimization of the fermentation time was carried out at 24, 48, and 72 hours using minimum Ramsay media added with 1% palm oil and 1% glucose. The results of the study obtained 20 isolates of bacteria isolated from palm oil mill waste, and 9 of them were able to produce polyhydroxyalkanoate (PHA) qualitatively. The results of quantitative selection obtained 2 bacterial isolates capable of producing PHA, namely isolates CPS 3 and LPS2 CPS 3, with crotonic acid absorbance values of 41.6 and 5.01, respectively with a fermentation time of 72 hours. Based on the results of genotypic identification using 16S rRNA DNA sequences, isolates of CPS 3, including Bacillus sp. strain CL33 and isolate LPS 2, belonged to Bacillus flexus strain S5a. This shows that isolates from palm oil mill waste can be used as a source of isolate for PHA production.Abstrak: Polyhydroxyalkanoate (PHA) merupakan polimer penyusun plastik biodegredable yang dapat di sintesis oleh mikroorganisme dari bermacam-macam substrat yang banyak mengandung sumber karbon asam lemak dan gula. Salah satu subtrat yang banyak mengandung sumber karbon adalah limbah yang berasal dari pabrik pengolahan kelapa sawit. Bakteri penghasil PHA dapat memanfaatkan sumber karbon berlebih dalam limbah kelapa sawit berupa asam-asam lemak untuk diubah menjadi PHA. Penelitian ini bertujuan untuk mengetahui potensi bakteri yang diisolasi dari limbah pabrik kelapa sawit dalam menghasilkan Polyhydroxyalkanoate (PHA) serta mengetahui waktu optimum yang dibutuhkan oleh bakteri dalam menghasilkan PHA. Optimasi waktu fermentasi dilakukan pada 24, 48 dan 72 jam menggunakan media minimal Ramsay yang ditambahkan minyak sawit 1% dan glukosa 1%. Hasil penelitian memperoleh 20 isolat bakteri yang diisolasi dari limbah pabrik kelapa sawit dan 9 isolat diantaranya mampu menghasilkan Polyhydroxyalkanoate (PHA) secara kualitatif. Hasil seleksi secara kuantitatif diperoleh 2 isolat yang mampu menghasilkan PHA yaitu isolat CPS 3 dengan nilai absorbansi asam krotonoat sebesar 41,6 sedangkan LPS 2 memiliki nilai absorbansi asam krotonoat sebesar 5,01 dengan waktu fermentasi selama 72 jam. Berdasarkan hasil identifikasi secara genotipik dengan menggunakan sekuens DNA 16S rRNA isolat CPS 3 termasuk jenis Bacillus sp. strain CL33 dan isolat LPS 2 termasuk jenis Bacillus flexus strain S5a. Hal ini menunjukkan bahwa isolat dari limbah pabrik kelapa sawit dapat digunakan sebagai sumber isolat untuk produksi PHA.
Moringa Leaf Infusion and Tea: How are Their Antioxidant Activities Different? Irma Rahmawati; Sinta Dewi Anggraeni; Andi Ika Julianti
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.11223

Abstract

Abstract: The global pandemic of the COVID-19 virus has made people around the world aware of the importance of maintaining health. Various efforts have been made to prevent the transmission of the COVID-19 virus, one of which is increasing the body's resistance. Moringa leaf (Moringa oleifera L.) is a medicinal plant that has properties that function as the main antiretroviral molecule to increase the activity of the immune system. This study aims to compare the antioxidant activity of Moringa leaf infusion and Moringa leaf tea. In this study, an analysis of antioxidant activity was performed using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method. Antioxidant activity of Moringa leaf infusion, Moringa leaf tea, and vitamin C as a comparison with IC50 values of 31.68 mg/mL; 31.17 mg/mL; 0.99 mg/mL. This is supported by the results of statistical tests which show that there are significant differences in the antioxidant activity of Moringa leaf infusion samples and Moringa leaf tea samples. It can be concluded that the antioxidant activity of Moringa tea is greater than Moringa leaf infusion.Abstrak: Pandemi global virus Covid-19, menyadarkan masyarakat di seluruh dunia terhadap pentingnya menjaga kesehatan. Berbagai upaya dilakukan untuk mencegah penularan virus Covid-19, salah satunya dengan meningkatkan daya tahan tubuh. Daun kelor (Moringa oleifera L.) merupakan tumbuhan obat yang mempunyai khasiat yang berfungsi sebagai molekul utama antiretroviral untuk meningkatkan aktivitas sistem kekebalan tubuh. Penelitian ini bertujuan untuk mengetahui perbandingan aktivitas antioksidan pada infusa daun kelor dan seduhan teh daun kelor. Pada penelitian ini, dilakukan analisis aktivitas antioksidan dengan metode DPPH (1,1-diphenyl-2-picrylhydrazyl). Aktivitas antioksidan pada infusa daun kelor, teh daun kelor, vitamin C sebagai pembanding dengan nilai IC50 berturut-turut sebesar 31,68 mg/mL; 31,17 mg/mL; 0,99 mg/mL. Hal ini didukung dengan hasil uji statistik yang menunjukan terdapat perbedaan aktivitas antioksidan yang signifikan dari sampel infusa daun kelor maupun sampel teh daun kelor. Berdasarkan hasil tersebut dapat disimpulkan bahwa aktivitas antioksidan teh daun kelor lebih besar daripada infusa daun kelor.
Larvicidal Activity of Streptomyces sp. Liquid Cultures Against Aedes aegypti Larvae Ni Wayan Desi Bintari; Putu Ayu Parwati
Elkawnie Vol. 8 No. 2 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i2.11436

Abstract

Abstract: The tropics have significant future challenges in controlling the vectors of dengue hemorrhagic fever. The occurrence of resistance to chemical control encourages the development of strategies based on biological control. This study aimed to test the larvicidal activity of Streptomyces sp. liquid culture toward A. aegypti larvae. The selection of Streptomyces as a bio-larvicide was carried out by a chitinase test. Chitinase-producing bacteria were cultivated in biomass culture. The study was conducted using a completely randomized design. The results of this study can be isolated 4 Streptomyces isolates from muddy soil. Among the isolates, Streptomyces sp.4 showed chitinolytic activity on in vitro tests; therefore, it was used for larvicidal activity. Based on the Duncan test result, Streptomyces sp.4 culture showed a significant effect on larval mortality compared to the negative control (p<0.05). The highest rate of larval mortality was found in the A6B1 treatment (34.35%). The results of the Probit test showed that the LD50 value of the Streptomyces sp.4 culture was 24.6±5.4 mL. Based on the in vivo test, showed that Streptomyces sp.4 liquid culture affected the mortality rate of A. aegypti larvae and was significantly different from the negative control (p<0.05). Streptomyces sp.4 is known to have potential benefits as a biological larvicidal agent.Abstrak: Daerah tropis memiliki tantangan besar kedepannya dalam pengendalian vektor demam berdarah dengue (DBD). Adanya kejadian resistensi pengendalian dengan zat kimiawi mendorong strategi pengembangan berbasis pengendalian biologis. Penelitian ini bertujuan untuk melakukan pengujian aktivitas kultur Streptomyces sp. sebagai larvasida A. aegypti. Seleksi Streptomyces sebagai biolarvasida dilakukan dengan uji aktivitas kitinase. Bakteri penghasil kitinase dilakukan kultivasi kultur biomassa untuk pengujian in vivo. Rancangan uji menggunakan Rancangan Acak Lengkap. Hasil penelitian dapat diisolasi 4 isolat Streptomyces yang diisolasi dari tanah berlumpur. Diantara keempat isolat, satu isolat yaitu Streptomyces sp.4 menunjukkan aktivitas kitinolitik sehingga digunakan untuk uji aktivitas larvasida secara in vivo. Hasil uji larvasida menunjukkan perlakuan kultur Streptomyces sp.4 berpengaruh nyata terhadap persentase kematian larva dibandingkan kontrol negatif (p<0.05) berdasarkan hasil uji Duncan. Persentase kematian tertinggi didapatkan pada perlakuan A6B1 yaitu sebesar 34.35%. Hasil uji Probit menunjukkan nilai LD50 dari kultur Streptomyces sp.4 adalah 24.6 ± 5.4 mL. Berdasarkan hasil uji in vivo diketahui bahwa perlakuan kultur cair Streptomyces sp.4 berpengaruh terhadap tingkat kematian larva A. aegypti dan berbeda nyata dengan kontrol negative (p<0.05). Streptomyces sp. 4 diketahui memiliki potensi sebagai salah satu agen larvasida biologis.
Endophytic Bacteria Identification of Red Ginger (Zingiber officinale var. Rubrum) From Enggano Island Welly Darwis; Annisa Prastika Supriyanto; Risky Hadi Wibowo; Sipriyadi Sipriyadi; Rochmah Supriati
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.11498

Abstract

Abstract: Endophytic bacteria are bacteria associated with the tissues of healthy plants that are beneficial. Almost every higher plant has some endophytic bacteria, one of which is Red Ginger (Zingiber officinale var. Rubrum) from Enggano Island. This research aims to obtain endophytic bacteria and to identify the Red Ginger (Zingiber officinale var. Rubrum) endophytic bacteria collected from Enggano Island. Endophyte bacteria isolation was carried out by the paste method on medium Nutrient Agar (NA) after sterilizing the surface of plant organs using alcohol and sodium hypochlorite 5,25%. A total of 24 isolates of endophytic bacteria of Red Ginger (Zingiber officinale var. Rubrum) were isolated from rhizomes (stem modification), leaf sheath, and leaf sheet. Endophytic bacteria were identified based on morphological observation, biochemical tests, and Gram-staining. As a result, the diversity of bacteria consists of 7 genera, namely the genus Bacillus, Sporosarcina, Amphibacillus, Azotobacter, Eubacterium, Pimelobacter, and Micrococcus. The genus Bacillus consists of 4 species, the genus Sporosarcina consists of 6 species, the genus Amphibacillus consists of 1 species, the genus Azotobacter consists of 2 species, the genus Eubacterium consists of 1 species, the genus Pimelobacter consists of 1 species, and the genus Micrococcus which also consists of 1 species. Bacillus is the most common type of endophytic bacteria that was found in red ginger from Enggano Island.Abstrak: Bakteri endofit adalah bakteri yang berasosiasi dengan jaringan tanaman yang memiliki banyak manfaat, baik bagi manusia maupun tumbuhan itu sendiri. Hampir setiap tumbuhan tingkat tinggi memiliki beberapa bakteri endofit, salah satunya jahe merah (Zingiber officinale var. Rubrum) yang berasal dari Pulau Enggano. Penelitian ini bertujuan untuk mendapatkan bakteri endofit dan mengetahui keanekaragaman bakteri endofit yang diisolasi dari jahe merah (Zingiber officinale var. Rubrum) asal Pulau Enggano. Isolasi bakteri endofit dilakukan dengan metode tempel pada media Nutrient Agar (NA) setelah dilakukan sterilisasi permukaan organ tanaman menggunakan alkohol dan natrium hipoklorit 5,25%. Sebanyak 24 isolat bakteri endofit jahe merah (Zingiber officinale var. Rubrum) diisolasi dari rimpang (modifikasi batang), pelepah daun, dan helaian daun. Bakteri endofit diidentifikasi berdasarkan pengamatan morfologi, uji biokimia, dan pewarnaan Gram. Hasilnya, keanekaragaman bakteri terdiri dari 7 genus, yaitu Bacillus, Sporosarcina, Amphibacillus, Azotobacter, Eubacterium, Pimelobacter, dan Micrococcus. Genus Bacillus terdiri dari 4 spesies, genus Sporosarcina terdiri dari 6 spesies, genus Amphibacillus terdiri dari 1 spesies, genus Azotobacter terdiri dari 2 spesies, genus Eubacterium terdiri dari 1 spesies, genus Pimelobacter terdiri dari 1 spesies, dan genus Micrococcus yang juga terdiri dari 1 spesies. Bacillus merupakan genus yang mendominasi keanekaragaman bakteri endofit yang diisolasi dari jahe merah asal Pulau Enggano.
Butterfly Diversity in The Alas River of Soraya Research Station, Leuser Ecosystem, Aceh Province Fitria Nelda Fautama; Alia Rizki; Zuriana Siregar; Suwarno Suwarno
Elkawnie Vol. 8 No. 1 (2022)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v8i1.11646

Abstract

Abstract: Butterflies are insects that live along riverbanks and belong to the Lepidoptera order. The Alas River is one of the longest rivers in Sumatra which passes through four districts in Aceh Province. Along the river banks, there are varied vegetation conditions such as secondary forests, shrubs, and sandy banks. This study aims to determine the diversity and composition of butterfly species in the Alas River, which is included in the Soraya Research Station area of the Leuser Ecosystem. The transect method was used to conduct butterfly diversity research from August to December 2020. A total of 75 species of butterflies were found in this study belonging to five families: Hesperidae, Lycaenidae, Pieridae, Papilionidae, and Nymphalidae. The butterfly compositions obtained were Nymphalidae (32 species and 134 individuals), Papilionidae (16 and 137 ), Pieridae (16 and 121), Lycaenidae (9 and 52), and Hesperidae (2 and 2). The butterfly species diversity index was categorized as high (H'= 3.763).Abstrak: Kupu-kupu merupakan serangga yang tergolong ke dalam ordo Lepidoptera yang banyak hidup di aliran sungai. Penelitian tentang keanekaragaman kupu-kupu dilakukan pada bulan Agustus - Desember 2020, sampel dikoleksi dengan menggunakan metode transek. Sungai Alas merupakan salah satu sungai terpanjang di Sumatera yang melewati empat kabupaten di Provinsi Aceh. Sepanjang tepian sungai ditumbuhi oleh berbagai jenis vegetasi membentuk hutan dan semak serta daerah yang berpasir. Studi ini bertujuan untuk mengetahui keragaman dan komposisi jenis kupu-kupu di aliran Sungai Alas yang masuk dalam wilayah Stasiun Penelitian Soraya Kawasan Ekosistem Leuser. Hasil penelitian ditemukan 75 jenis kupu-kupu yang tergolong dalam lima family yaitu Hesperidae, Lycaenidae, Pieridae, Papilionidae dan Nymphalidae. Komposisi kupu-kupu yang didapatkan berturut-turut adalah Nymphalidae (32 spesies and 134 individu), Papilionidae (16 dan 137), Pieride (16 dan 121), Lycaenidae (9 dan 52), dan Hesperidae (2 dan 2). Indeks keanekaragaman jenis kupu-kupu dikategorikan tinggi (H’= 3.8).
Digital Trail Awareness in Islamic Perspective Gunawan Adnan; Mulkan Fadhli; Farid Fathony Ashal
Elkawnie Vol. 7 No. 2 (2021)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v7i2.11706

Abstract

Abstract: The growing popularity of the internet has a significant impact on people's attitudes. The Covid-19 pandemic has accelerated a cultural, ethical, and normative change in people's behavior. The potential for social change resulting from the emergence or advancement of information and technology is significant. The rise of social media, which has now become a common form of communication, is unavoidable. Digital communication through a variety of websites to obtain information will leave digital traces. The concept of a digital trail certainly reaffirms what has previously been written in Al-Qur'an, Surah Yasin: 65. This verse is relevant to digital multi-hop tracks that outline human actions and behavior to the swipe of their fingers. The verse is translated through the use of a digital trail that is connected to internet access. This library research study uses the source triangulation method to analyse exploratory qualitative content. The study's findings indicate a correlation between the digital trail and Surah Yasin 65, demonstrating that current digital technology proves that the Qur'an's nash or verses are consistent with the unquestionable assumption of human rationality. It also emphasizes the importance of being cautious and responsible when using digital platforms.Abstrak: Tren peningkatan penggunaan internet memberikan pengaruh besar terhadap perilaku masyarakat. Pandemi Covid-19 mengakselerasi pergeseran pola perilaku masyarakat baik dari segi budaya etika maupun norma yang ada. Potensi terjadinya perubahan sosial sebagai konsekuensi lahir atau berkembangnya teknologi informasi sangat besar. Kemunculan media sosial yang kini sudah menjadi hal yang umum dalam berkomunikasi memang tak dapat dihindarkan lagi. Jalur komunikasi di era digital yang melalui berbagai proses untuk mendapatkan informasi akan meninggalkan jejak-jejak digital atau digital footprint. Potret jejak digital ini tentunya menegaskan kembali apa yang telah dituliskan dalam Al Quran pada surah Yasin ayat 65. Ayat ini memiliki relevansi dengan jejak hop digital menguraikan perbuatan dan perilaku manusia dari sentuhan jari. Ayat tersebut diterjemahkan dengan footprint digital yang terhubung dalam sebuah jaringan internet. Studi ini merupakan library research dengan  pendekatan kualitatif explanatif dalam bentuk konten analisis dengan metode tringalasi sumber. Hasil studi menunjukkan bahwa terdapat korelasi digital footprint dengan Surah Yasin 65 di mana teknologi digital saat ini menjadi bukti bahwa nash yang termuat dalam Alquran sesuai dengan asumsi rasionalitas manusia yang tidak memiliki keraguan di dalamnya. Penekanan berikutnya adalah setiap individu harus cermat dan bertanggungjawab dalam mengakses platform digital.

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