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All Journal Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Phi : Jurnal Pendidikan Fisika dan Terapan Elkawnie Al-Kimia Jurnal Serambi Engineering Amina Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Journal of the Civil Engineering Forum Kenanga : Journal of Biological sciences and Applied Biology Lingkar : Journal of Environmental Engineering
Husnawati Yahya
Universitas Islam Negeri Ar-Raniry Banda Aceh
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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Pengaruh Karaginan dari Rumput Laut Merah (Eucheuma cottonii) Asal Provinsi Aceh sebagai Edible Coating terhadap Ketahanan Buah Reni Silvia Nasution; Husnawati Yahya; Muhammad Ridwan Harahap
Al-Kimia Vol 7 No 2 (2019): DECEMBER
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.206 KB) | DOI: 10.24252/al-kimia.v7i2.6385

Abstract

The coating substance on tomato, apple, and kiwi from carrageenan of Eucheuma cottonii that originated from Aceh was made with additional PEG (polyethylene glycol) plasticizer to increase the fruit shelf life. Carrageenan of Eucheuma cottonii was extracted using 14% alkaline solution (KOH) and precipitated using IPA (isopropyl alcohol). The coating substance was made using various combination of carrageenan (0,1%, 0,2% 0,3%) and PEG (polyethylene glycol) with concentration 0,5% (v/v). Fruit coating process was carried out by immersion until the whole fruit well submerge. The examination was carried out through functional groups identification of carrageenan from Eucheuma cottonii and the coating substance. The coating substance was observed toward fruits resistance to see changes in physical shape and hardness of fruit and used a microscope with 450 times enlargement to observe the fruit surface at 0 day, 6th day, 12th day and 18th day. As the result, carrageenan that extracted from red seaweed (Eucheuma cottonii) shown the suitable structure with the commercial carrageenan. From the observation result, coated fruits resistance which was observed at 12th day shown apple and tomato have a better hardness and physical appearance with 0,3% carrageenan than with 0,1%, 0,2%, and control, meanwhile for kiwi with 0,2% carrageenan.
Integrated pest management practices for rice crops: Review of Indonesia and Taiwan Husnawati Yahya; Kwok-Ching Wong; Ping-Shih Yang
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.316 KB)

Abstract

One of the new strategies to control rice pests that are at the same time more environmentally friendly is integrated pest management (IPM). IPM employs such methods as biological and mechanical controls, and botanicalpesticides. National and international resources have been used to developed IPM programs in some countries. Indonesia and Taiwan have used such programs to control rice pests. Biological control, botanical pesticides andsome mechanical control have been conducted in IPM program in both countries. However, assessing and comparing the effects of IPM programs are difficult because of the heterogeneity of the data due to differences in regions (e.g., climate, rainfall, soil structure), time periods, pest classes (e.g., insects, plant pathogens, weeds), and types of crops researched. In Indonesia using the recommended pesticides still be the last option for controlling the pests that reach an economic threshold. In 2011, recommended pesticides are applied about 981,628 ha of all rice crops. Other controls are the second pests control choosen in Indonesia. Other controls are consists of biological control (usingparasitoids and predators), microbial control (fungi, virus and bacteria) and natural plant extraction. Other controls reach about 464,854 ha of total rice crops in Indonesia. Mechanical controls are less applied than recommendedpesticides and other controls. Mechanical controls are including all controls before rice planting, such as harrowing land, killing rats, applying organic fertilizer, planting good varieties and cropping pattern. Mechanical controls reach about 84,920 ha of total rice crops in Indonesia. Taiwan also have similar development of rice IPM like Indonesia. In different counties, the farmers applied different IPM techniques. More farmers are independent to set up their rice pest control. Now, Taiwan have a significant progress in organic rice
Edible Film dari Karaginan (Eucheuma cottonii) Asal Aceh, Indonesia : Karakterisasi dengan FTIR dan SEM Reni Silvia Nasution; Muhammad Ridwan Harahap; Husnawati Yahya
Elkawnie: Journal of Islamic Science and Technology Vol 5, No 2 (2019)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v5i2.5567

Abstract

Edible film karaginan merupakan salah satu alternatif pengganti kemasan plastik yang sulit terdegradasi di alam dan aman bagi bahan pangan. Karaginan merupakan hasil ekstraksi salah satu jenis rumput laut yaitu Eucheuma cottonii. Tujuan penelitian ini untuk mengetahui gugus fungsi dari edible film dengan variasi konsentrasi karaginan dan sifat permukaan dari edible film karaginan dengan SEM. Pemanfaatan karaginan hasil ekstraksi E.cottonii asal Aceh untuk pembuatan edible film diharapkan dapat meningkatkan potensi budidaya E.cottonii di Aceh. Tahapan penelitian dilakukan dengan dua tahap, tahap pertama proses ekstraksi karaginan dari E. cottonii dengan penggunaan KOH 14% dan tahap kedua pembuatan edible film dengan varisi konsentrasi karaginan 0,1%; 0,2%; 0,3% (b/v) dengan penambahan PEG sebagai plasticizer. Hasil FTIR menunjukkan gugus fungsi ester sulfat, ikatan glikosidik, 3,6 anhidro-d-galaktosa, gugus OH dan CH dengan bilangan gelombang berturut-turut pada rentang 1246,36-1246,9 cm-1 , 1072-1074 cm-1, 932-934 cm-1,  3370- 3382 cm-1, dan 2876-2880 cm-1. Perubahan bilangan gelombang edible film karaginan dibandingkan dengan FTIR karaginan hasil ekstraksi pada penelitian sebelumnya menunjukkan adanya interaksi antara karaginan dengan plasticizer PEG yang ditambahkan. Pengujian morfologi pada edible film pada konsentrasi karaginan 0,1% dan 0,2% dengan SEM menunjukkan permukaan yang homogen dan kontinyu, sedangkan pada konsentrasi 0,3% edible film tidak terbentuk.
UJI EFEKTIVITAS CANGKANG KEONG MAS (POMACEA CANALICULATA L) SEBAGAI BIOSORBEN DALAM MENYERAP LOGAM TIMBAL (Pb) Risna Mauriza; Ashari T. Muhammad; Husnawati Yahya
Jurnal Phi: Kurnal Pendidikan Fisika & Terapan Vol 1, No 3 (2020)
Publisher : UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v1i3.7841

Abstract

ABSTRAK. Logam berat  Pb merupakan logam berat yang berbahaya bagi kesehatan. Logam Pb dapat merusak sistem organ. Salah satu cara untuk mengurangi adanya kandungan logam Pb dapat dilakukan dengan penggunaan adsorben. Keong mas merupakan salah satu hama bagi aktivitas pertanian. Di dalam cangkang keong mas mengandung banyak kalsium karbonat. Kalsium karbonat dapat dijadikan sebagai adsorben. Penelitian ini bertujuan untuk menguji keefektivan serbuk cangkang keong mas dalam menyerap logam Pb. Penelitian merupakan penelitian kuantitatif. Terdiri dari variabel terikat dan variabel bebas. Variabel terikat terdiri dari konsentrasi 10 ppm timbal dn kecepatan waktu pengadukan 100 rpm. Sedangkan variabel bebas terdiri dari variasi massa serbuk dan waktu pengadukan. Massa serbuk keong mas yang digunakan yaitu 0 gr; 5 gr; 10 gr; 15 gr dan 20 gr dengan variasi waktu pengadukan selama 15 menit dan 30 menit untuk tiap sampel Pb. Tiap Pb yang digunakan dengan konsentrasi 10 ppm. Berdasarkan hasil perhitungan yang diperoleh didapatkan hasil efektivitas serbuk cangkang keong mas dalam menyerap Pb 10 ppm terdapat pada massa 5 gr serbuk cangkang keong mas dan dengan waktu pengadukan 15 menit yaitu sebesar 99,99% dengan hasil penurunan konsentrasi Pb 10 ppm menjadi Pb 0,0001 ppm 
Uji Efektivitas Cangkang Keong Mas (Pomacea canaliculata L.) Sebagai Biosorben Dalam Menyerap Logam Berat Merkuri (Hg) Risna Mauriza; Husnawati Yahya; T.M. Ashari T.M. Ashari
Jurnal Serambi Engineering Vol 5, No 4 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i4.2319

Abstract

Adsorbent is one of the effective solutions to reduce the Hg metal content. The golden snail is a pest for agricultural and contains high of calcium carbonate. However, calcium carbonate can be used as an adsorbent. This study aimed to examine the effectiveness of golden snail shell powder in absorbing Hg metal. This research is a quantitative study consisting of dependent variables and independent variables. The dependent variable involved a concentration of 10 ppm mercury, and 100 rpm stirring time speed while the independent variable included of variations in powder mass and stirring time. The mass of golden snail powder used those are 0 gr, 5 gr, 10 gr, 15 gr, and 20 gr with a variation of stirring time for 15 minutes and 30 minutes for each sample of Hg metals. Each Hg sample was used at a concentration of 10 ppm. The calculation results obtained that the effectiveness of golden snail shell powder in absorbing Hg 10 ppm was the mass of 20 grams of golden snail powder with a stirring time of 30 minutes that was equal to 99.87% with the result of a decrease in concentration of 10 ppm Hg to 0.01 Hg ppm.
Analisis Kadar Air dan Total Petroleum Hydrocarbon (TPH) dari Proses Bioremediasi Limbah Oli dengan Metode Pengomposan Husnawati Yahya
Jurnal Serambi Engineering Vol 4, No 1 (2019)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v4i1.846

Abstract

Engine oil waste is a pollutant that causes environmental pollution and risk for human health. Bioremediation is one of the solutions to solve this problem. In this research, engine oil waste was remediation by composting method. The composting process was conducted in Environmental Engineering laboratory for 35 days.  Water Content and total petroleum  hydrocarbon (TPH) was analyzed in Chemical Engineering laboratory to show the degrada-tion of engine oil waste by combining of liquid fertilizer and compost. The result showed that Total Petroleum Hydrocarbon (TPH) of engine oil waste degradation reached 81% in sample 8 (by combined 8 mL of liquid or-ganic fertilizer and 300 g of compost soil). Sample 12 (by combined 2 mL of liquid organic fertilizer and 500 g of compost soil) also showed the same result
KAJIAN BEBERAPA MANFAAT SEKAM PADI DI BIDANG TEKNOLOGI LINGKUNGAN: SEBAGAI UPAYA PEMANFAATAN LIMBAH PERTANIAN BAGI MASYARAKAT ACEH DI MASA AKAN DATANG Husnawati Yahya
Prosiding Seminar Nasional Biotik Vol 5, No 1 (2017): PROSIDING SEMINAR NASIONAL BIOTIK V 2017
Publisher : Prosiding Seminar Nasional Biotik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (46.105 KB) | DOI: 10.3126/pbio.v5i1.2159

Abstract

Saat ini, masyarakat Aceh telah memanfaatkan sekam padi dalam skala yang belum terlalu luas. Mereka sering memanfaatkan sekam padi sebagai pakan ternak, abu gosok, media untuk pengasinan telur bebek, dan bahan bakar tradisional. Bila dikaji dari beberapa jurnal nasional dan internasional, banyak penelitian yang telah dilakukan tentang pemanfaatan sekam padi khususnya di bidang teknologi lingkungan. Penelitian ini pun beragam, mulai dari pemanfaatan sekam padi sebagai energi terbarukan, pupuk, bahan bangunan, hingga penyerap logam berat yang berbahaya bagi lingkungan. Diharapkan kajian beberapa jurnal tentang manfaat sekam padi ini dapat menjadi literatur awal bagi penelitian lanjutan pemanfaatan limbah pertanian bagi masyarakat Aceh nantinya.
Evaluation of Flood and Drought Events Using AR5 Climate Change Scenarios in Indonesia M. Faisi Ikhwali; Maulana Ibrahim Rau; Benazir; Chalermchai Pawattana; Husnawati Yahya
Journal of the Civil Engineering Forum Vol. 9 No. 1 (January 2023)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jcef.4721

Abstract

Indonesia is an archipelagic country located on the equator. The issue of climate change has become a global issue that has impacted several sectors in Indonesia recently. The presence of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) has contributed to conducting studies on flood and drought events. This review paper summarized 16 published papers that have gone through peer-review, both in the form of publications in journals and at conferences. Since the release of the IPCC AR5 to date, ten studies on flooding and six studies on drought events have been conducted. The most publications on this in 2019 were five publications. Of the various types of the Representative Concentration Pathway (RCP) scenarios used with various methods, the most widely used scenario RCPs is RCP4.5. From the climate change scenario, precipitations parameter is the main parameter that is used in assessing flood or drought events. There are studies conducted on a district / city, provincial scale, and some are even carried out on a watershed scale. The location or province that most flood studies have been carried out is in the capital of Jakarta. The results of these studies generally indicate that the incidence of floods and droughts will increase in the future. Therefore, adaptation steps are needed to deal with unfavorable conditions in the future. Moreover, as the capital city, Jakarta has been estimated that the projected flood incidence will increase. Several publications have provided steps to deal with these challenges on the positive side.
PENYISIHAN KADAR AMONIA (NH3) DENGAN MENGGUNAKAN METODE MOVING BED BIOFILM REACTOR (MBBR) SEDERHANA PADA LIMBAH INDUSTRI PUPUK UREA Juliansyah Harahap; Mutia Zuhra; Husnawati Yahya; Syafrina Sari Lubis
KENANGA : Journal of Biological Sciences and Applied Biology Vol 2 No 2 (2022): Oktober 2022
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Ar-Raniry Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/kenanga.v2i2.2397

Abstract

Industri pupuk urea menghasilkan limbah yang mengandung amonia (NH3) yang bersifat racun sehingga jika dibuang langsung ke lingkungan dapat mencemari lingkungan dan merusak ekosistem. Salah satu metode yang digunakan untuk menurunkan kadar amonia (NH3) adalah metode Moving Bed Biofilm Reactor (MBBR) yang merupakan metode pengolahan biologis yang menggunakan media Kaldness sebagai tempat pengembangbiakan mikroorganisme atau tempat pembentukan biofilm. Tujuan dari penelitian ini adalah untuk mengetahui efektifitas dari metode Moving Bed Biofilm Reactor (MBBR) dalam mendegradasi parameter Amonia (NH3), pH, TSS, dan COD pada limbah industri pupuk urea. Penelitian ini menggunakan variasi media dalam reaktor sebanyak 30% dan 50% dari volume limbah dengan variasi waktu kontak selama 24 jam, 48 jam dan 72 jam. Penurunan kadar parameter pH tertinggi terjadi pada variasi waktu 24 jam dengan variasi media sebanyak 50% yaitu 8,5 dari konsentrasi awal 9,1. Kadar TSS semakin meninggi pada variasi waktu 72 jam dengan media sebanyak 50% yang dari kadar awalnya 16 mg/l menjadi 474 mg/L. Penurunan kadar COD tertinggi terjadi pada waktu 72 jam dengan variasi media 0% pada reaktor kontrol yaitu dari nilai awal 243 mg/L menjadi 5 mg/L. Sedangkan penurunan kadar polutan amonia (NH3) tertinggi terjadi pada variasi waktu 72 jam dengan variasi media sebanyak 50% dengan kadar awal 112,04 mg/L menjadi 86,53 mg/L. Maka metode MBBR efektif pada pengolahan parameter Amonia (NH3), pH, TSS, dan COD kecuali pada parameter TSS.
PENGOLAHAN LIMBAH CAIR DOMESTIK (GREY WATER) MENGGUNAKAN CANGKANG TIRAM (Saccostrea echinata) SEBAGAI BIOKOAGULAN Bhayu Gita Bhernama; Erawati; Husnawati Yahya
AMINA Vol 4 No 1 (2022): April 2022
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pencemaran lingkungan diakibatkan oleh limbah domestik tanpa adanya pengolahan terlebih dahulu. Oleh karena itu, perlu dikembangkan metode dalam pengolahan limbah domestik Telah banyak metode yang digunakan dalam mengatasi pencemaran lingkungan akibat limbah domestik, salah satunya metode koagulasi-flokulasi. Metode koagulasi-flokulasi menggunakan cangkang tiram sebagai bioakulan. Penelitian ini bertujuan untuk mengetahui pengaruh variasi massa koagulan dan kecepatan serta waktu pengendapan terhadap BOD dan COD. Koagulan yang digunakan adalah limbah cangkang tiram. Variasi massa koagulan yang digunakan yaitu 0 g/L; 10 g/L; 30 g/L; 50 g/L; dan 70 g/L. Variasi pengadukan cepat yaitu 100, 125 dan 150 rpm selama 30 menit, dengan pengendapan 30, 60 dan 90 menit. Penurunan BOD yang optimum dengan massa koagulan 50 g/L dengan kecepatan 125 rpm sebesar 82,4 %. Penurunan COD yang optimum dengan massa koagulan 50 g/L pada kecepatan 150 rpm sebesar 83,75 %. Dapat dilihat bahwa proses koagulasi-flokulasi menggunakan koagulan dari cangkang tiram mampu menurunkan kadar pencemar yang ada pada limbah cair domestik, sehingga dapat menjadi salah satu solusi dalam pengolahan limbah cair domestik.
Co-Authors Abd Mujahid Hamdan Benazir Benazir Bhayu Gita Bhernama Chalermchai Pawattana Erawati Juliansyah Harahap Kwok-Ching Wong M. Faisi Ikhwali Maulana Ibrahim Rau Muhammad Ridwan Harahap Mutia Zuhra Ping-Shih Yang Reni Silvia Nasution Risna Mauriza Risna Mauriza Rizna Rahmi Santi purnama putri Syafrina Sari Lubis T.M. Ashari T.M. Ashari Teuku Muhammad Ashari Tuti Marlina