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All Journal EDUSAINS Jurnal Bios Logos Reaktor FLYWHEEL : Jurnal Teknik Mesin Untirta Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung BIOMA JFMR (Journal of Fisheries and Marine Research) EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi INTELEKTIVA

EKA SARI

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Author-ID : 1760764

Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Transportation Other

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PENINGKATAN KETERAMPILAN MASYARAKAT MELALUI PELATIHAN PEMBIBITAN DAN PEMBUATAN BAGLOG JAMUR TIRAM PUTIH DI DESA PAGARAWAN, BANGKA EKA SARI; Ropalia
JURNAL EKONOMI, SOSIAL & HUMANIORA Vol 1 No 04 (2019): INTELEKTIVA : Jurnal Ekonomi, Sosial dan Humaniora E-ISSN 2686-5661
Publisher : KULTURA DIGITAL MEDIA ( Research and Academic Publication Consulting )

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

Pleurotus ostreatus merupakan jenis jamur tiram putih yang mempunyai manfaat dari segi kesehatan, lingkungan dan ekonomi. Permintaan pasar tinggi sementara petani jamur tiram putih di Pulau Bangka masih sedikit. Desa Pagarawan, Bangka dengan ikon jamur tiram putih mencoba menjawab tantangan tersebut, namun terkendala dengan keterbatasan keterampilan masyarakat terutama dalam produksi bibit dan baglog jamur. Kegiatan Program Kemitraan Masyarakat (PkM) melalui kegiatan budiaya jamur tiram putih skala rumah tangga dengan konsep budidaya dari mulai pembuatan bibit sampai produksi menawarkan alternatif solusi untuk mewujudkan ikon tersebut di Desa Pagarawan. Metode yang dilakukan dalam kegiatan ini adalah pelatihan pembuatan bibit F0, F1, F2 jamur tiram putih dan baglog. Media F0 menggunakan agar kentang, media F1/F2 menggunakan jagung sementara media baglog terdiri atas serbuk kayu, kapur pertanian, gipsum, dedak, dan dekomposer EM4. Hasil pembuatan bibit F0 dari 500 mL media agar kentang adalah 7 buah bibit, namun semua hasilnya mengalami kontaminasi. Dari media jagung 1,2 kg dihasilkan 8 buah bibit F2 jamur tiram. Baglog yang dihasilkan dari 116 kg serbuk kayu adalah 119 baglog dengan komposting dan 97 baglog tanpa komposting. Keberhasilan pembuatan bibit dan media produksi (baglog) jamur tiram putih ditentukan oleh pemahaman terkait teknik sterilisasi. Peningkatan keterampilan masyarakat terkait teknik budidaya jamur tiram terutama pada pembuatan bibit dan baglog sedikit demi sedikit mengalami kemajuan, yang terbukti dengan adanya inisiatif tinggi dari mitra produksi untuk membuat bibit jamur tiram secara mandiri

EVALUASI DEPURASI TOTAL BAKTERI PADA KERANG DARAH DARI PERAIRAN DESA SUKAL, KABUPATEN BANGKA BARAT Fika Dewi Pratiwi; Eka Sari
JFMR (Journal of Fisheries and Marine Research) Vol 3, No 3 (2019): JFMR VOL 3 No. 3
Publisher : JFMR (Journal of Fisheries and Marine Research)

Blood clams cultured in Sukal Village West Bangka Regency sell in the market around Bangka Belitung Island Province. These blood clams often sell without sanitary and hygiene control treatment during cultivation or post-harvest. For that reason, the clams have the potential for pathogenic bacterial contamination that can harm the consumer's health. The study aimed to analyze the initial content of total bacteria (total plate count) in blood clam sample collected from Sukal Village and analyze the content of total bacteria (TPC) after depuration treatment for 24 hours and 48 hours. The depuration experiment followed the recirculating system for 24 hours and 48 hours. The UV light used to irradiate the natural saline water and chitosan from shrimp shell used as a filter and antibacterial agent. The temperature and salinity were constant at 29 o C and 30 o/oo. Total plate count (TPC) method used in this research according to SNI 01-2332.3-2006, while ISO 4833-1: 2013; PerKa BPOM No. 16 used as the quality standard of total bacteria content in blood clam. The result found that the blood clams collected from the first station contained total bacteria exceeded the established quality standards. Independent T-test showed that there was no significant difference between the reduction in the TPC content of blood clam samples with a depuration time of 24 hours and a time of 48 hours.

Pengembangan Lembar Kegiatan Peserta Didik (LKPD) Berbasis Karakter Pada Mata Pelajaran Kimia SMA Eka Sari; Syamsurizal Syamsurizal; Asrial Asrial
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 5 No. 2 (2016): Juli 2016
Publisher : Universitas Jambi

The purpose of this study is to create students’ worksheet based on character values. This is an R & D research with model ADDIE instructional design model (analysis, design, development, implementation, and evaluation). The feasibility of worksheet was examined using a questionnaire. Based on the questionnaire results validity tested by the experts, the worksheet was declared to be valid and it is applicable to be used and tested, whereas the response of the teachers and students about the worksheet, it stated that the worksheet categorized as a very good one. Meanwhile the data of character development and students’ skill on doing practical work that gained from the observation sheet. The results of the responses of teachers and students to worksheet in the criteria very good so it has good quality on student interest. While the results of the analysis of observation sheets scientific attitude and skills of students in conducting lab has a good criteria. Keyword: Based Worksheet, Chemistry, Senior High School.

BIODELIGNIFIKASI ENCENG GONDOK UNTUKMENINGKATKAN DIGESTIBILITAS PADA PROSESHIDROLISIS ENZIMATIK Eka Sari; S Syamsiah; Hary Sulistyo; Muslikhin Hidayat
Reaktor Volume 17 No.1 Maret 2017
Publisher : Dept. of Chemical Engineering, Diponegoro University

Abstract Water hyacinth is one of lignocellulose that has potential to bioethanol feedstocks. This is due to the high content of cellulose and hemicellulose its rapid growth and the plant is abundant in nature. Bioconversion of water hyacinth begins with biodelignification process. This biodelignification aims to remove lignin and reduce crystallinity of cellulose and hemicellulose to increase its digestibility in enzymatic hydrolysis processes. The purpose of this study was to evaluate the effect of biodelignification of water hyacinth using fungi and the effect on the digestibility of water hyacinth in the enzymatic hydrolysis process. In this study, Biodelignification using Solid State Fermentation (SSF) method using Phanerochaete Chrysosporium (PC). Hyacinth is inserted in a bioreactor and incubated for 28 days. The analysis of composition of water hyacinth is conducted every 4 days. After the biodelignification process followed by hydrolysis process using cellulase enzyme. Glucose generated from this hydrolysis process will be analyzed using the Somogyi Nelson method. The results show that biodelignification process can improve the digestibility of water hyacinths characterized by increased glucose yield. Without biodelignification process, glucose yield only reached 3.98%. After biodelignification prior to the hydrolysis process, the highest glucose yield was achieved at 67.66% for 16 days incubation. Keywords: biodeglinification;glucose;hydrolysis;lignin; cellulast Abstrak Enceng gondok adalah salah satu lignoselulosa yang berpotensi untuk dijadikan bahan baku bioetanol. Hal ini disebabkan oleh kandungan selulosa dan hemiselulosa yang tinggi dan pertumbuhannya yang cepat sehingga ketersediaannya di alam sangat melimpah. Biokonversi enceng gondok dimulai dengan proses biodelignifikasi. Biodelignifikasi ini bertujuan menghilangkan lignin dan mengurangi kristalinitas selulosa dan hemiselulosa untuk meningkatkan digestibilitasnya pada proses hidrolisis enzimatik. Tujuan dari penelitian ini adalah mengevaluasi pengaruh biodelignifikasi enceng gondok dengan jamur terhadap digestibilitas enceng gondok pada proses hidrolisis enzimatik. Biodelignifikasi pada penelitian ini menggunakan metode Solid State Fermentation (SSF) menggunakan jamur Phanerochaete Chrysosporium (PC). Enceng gondok dimasukan dalam sebuah bioreaktor dan diinkubasi selama 28 hari. Analisis perubahan komposisi enceng gondok dilakukan setiap 4 hari. Setelah proses biodelignifikasi dilanjutkan dengan proses hidrolisis menggunakan enzim selulase. Glukosa yang dihasilkan dari proses hidrolisis ini akan dianalisis menggunakan metode Somogyi Nelson. Hasil penelitian menunjukkan bahwa proses biodelignifikasi dapat meningkatkan digestibilitas enceng gondok yang ditandai dengan meningkatnya yield glukosa. Tanpa proses biodelignifikasi, yield glukosa hanya mencapai 3,98%. Setelah dilakukan biodelignifikasi sebelum proses hidrolisis maka yield glukosa tertinggi dicapai sebesar 67,66% selama 16 hari inkubasi. Kata kunci:biodeglinifikasi;glukosa;hidrolisis;lignin; selulase

MIKOREMEDIASI LAHAN BEKAS TAMBANG TIMAH TERCEMAR LOGAM PB DENGAN FUNGI PELARUT KALIUM SEBAGAI BIOFERTILIZER POTENSIAL Nur Azizah; Eka Sari; Nur Annis Hidayati; Suyatno Suyatno
Bioma : Jurnal Ilmiah Biologi Vol. 9 No. 2: Oktober 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v9i2.7061

Aktivitas penambangan menyebabkan peningkatan cemaran logam Pb yang dapat berdampak negatif pada tumbuhan dan hewan. Aktivitas tersebut juga dapat menyebabkan penurunan produktivitas tanah. Mikoremediasi merupakan teknik bioremediasi menggunakan fungi. Selain sebagai agen mikoremediasi, fungi juga dapat berperan sebagai agen biofertilizer yang dapat meningkatkan nutrisi tanah termasuk N, P, dan K. Tujuan penelitian ini adalah mengisolasi dan menguji potensi fungi pelarut kalium sebagai agen mikoremediasi yang berpotensi sebagai biofertilizer. Metode yang penelitian meliputi isolasi, uji resistensi logam Pb, uji patogenitas fungi dan hemolisis. Berdasarkan hasil penelitian didapat tiga isolat fungi pelarut kalium dari golongan Gliocladium yang dapat berpotensi sebagai agen mikoremediasi Pb hingga 100 ppm. Gliocladium juga berpotensi sebagai agen biofertilizer yang ramah lingkungan dan tidak patogen terhadap tumbuhan dan hewan.Kata kunci: Biofertilizer, Mikoremediasi, Fungi Pelarut Kalium

PENGERINGAN LADA PADA MESIN PENGERING DENGAN VARIASI PUTARAN MOTOR Yudi Setiawan; Eka Sari; Irfan Wahyudi; Ahmad Mustofa
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume II Nomor 1, April 2016
Publisher : Universitas Sultan Ageng Tirtayasa

Mesin pengering lada yang sudah ada masih menggunakan rak diam (posisi statis), sehingga lada dalam rak tidak bisa berbalik dengan sendirinya. Pada penelitian ini mesin pengering lada akan dimodifikasi menjadi mesin pengering lada dengan rak yang bergerak menggunakan poros engkol dan poros eksentrik dengan memanfaatkan putaran motor listrik. Pada saat proses pembalikkan putaran dari motor listrik ditransmisikan oleh pulley belt menuju poros eksentrik, kemudian putaran tersebut dirubah menjadi gaya dorong dan gaya tarik untuk menggerakkan dudukan rak lada agar lada dapat berbalik pada saat proses pengeringan. Tujuan dari penelitian ini adalah mendapatkan waktu pengeringan yang lebih cepat dengan pengeringan yang merata, sehingga hasil lada kering mengandung kadar air yang lebih rendah berdasarkan SNI. Penelitian ini dilakukan dengan tiga variasi yaitu 30 rpm, 40 rpm, dan50 rpm dengan suhu tetap 40o C. Dari hasil pengujian didapatkan waktu yang lebih cepat dibandingkan mesin pengering lada dengan rak diam, yaitu pada variasi 30 rpm memerlukan waktu selama 10 jam pada rak I, dan 11 jam pada rak II dan rak II dengan kadar air rata-rata sebesar 12,483%. Pada variasi 40 rpm memerlukan waktu waktu selama 9 jam pada rak I, dan 10 jam pada rak II dan rak III dengan kadar air rata-rata sebesar 12,067%, sedangkan pada variasi 50 rpm memerlukan waktu selama 8 jam pada rak I dan 9 jam pada rak II dan Rak III dengan kadar air rata-rata sebesar 11,913%.

ISOLASI DAN KARAKTERISASI Beauveria bassiana SEBAGAI FUNGI ANTI HAMA Eka Sari; Zulvia Intan Sari; Anggi Nico Flatian; Eman Sulaeman
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 3 No 1 (2018): Ekotonia: Journal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Development of biological potential could to be a solution of pest problems and environmental damage by pesticides. One of the organisms that are currently often be used for biopesticides is the entomopathogenic fungi such as Beauveria brassiana. This study aim to isolate, characterize of pest-resistant fungi and apply it to some agricultural insect pests in vitro. Samples which used were planthoppers, aphids, grasshoppers and isolated fungi Beauveria bassiana from Biogen Laboratory. The research was conducted in Soil and Environmental Biotechnology Laboratory, Dramaga, Bogor. Isolation method with Insect Bait Methode. Isolation and characterization of pest-resistant fungi that are planthoppers and aphids show the result that the great possibilities are the Beauveria bassiana fungus, that is clearly visible from the obtained physical characteristics, the white and sealed hyphae and conidia round oval. In addition, the fungi which used is a pathogenic fungi on the pest of aphids, planthoppers, and grasshoppers.

FAG Salmonella ASAL LIMBAH PASAR IKAN DAN AIR SUNGAI DI SEKITAR KAMPUS UNIVERSITAS BANGKA BELITUNG Rizky Putri Deshanda; Rahmad Lingga; Nur Annis Hidayati; Eka Sari; Rossy Hertati
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 3 No 2 (2018): Ekotonia: Journal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Seven Salmonella lytic phages found in water sample of river near UBB campus building. Phages were characterized by plaque morphology (plaque diameter size and shape) and phage host range. Phages formed plaques with diameter size ranges from 1.06 mm to 4.90 mm, and form shape such as small dot, circle, elongated, or irregular. Factors effect plaque forming by phages are phage titer number and incubation time. All phage isolates have broad host range include Gram negative and positive. Six phage isolates are able to lyse Salmonella, Staphylococcus aureus, and Escherichia coli, meanwhile one phage isolate is able to lyse Salmonella and Staphylococcus aureus.

ISOLASI DAN KARAKTERISASI Rhizobium DARI Glycine max L. DAN Mimosa pudica Linn. Eka Sari; Anggi Nico Flatian; Zulvia Intan Sari; Eman Sulaeman
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 3 No 2 (2018): Ekotonia: Journal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

N availability in Indonesia is still relatively low. Various types of fertilization techniques are developed in order to reduce N losses, but the efficiency of N fertilizer use is not optimal. Therefore, biological N-belay technology is needed through Rhizobium inoculation to improve N fertilization in legume plants. This study aims to isolate and characterize Rhizobium bacteria from nodules formed in the roots of legume plants. The collection of Glycine max L. and Mimosa pudica Linn. root nodules is ashamed to be chosen from the pink root nodules. Rhizobium isolation using selective media of Yeast Extract Manitol Agar + congo red using the spread plate method. Characterization carried out, in the form of macroscopic observations, Gram staining, biochemical physiological tests, manufacturing growth curves and pathogenicity tests. The results of isolation from both plants obtained five types of Rhizobium isolates. The results of the characterization of isolates in both plants also showed the same thing, namely: bacteria have Echinulate shape when grown on sloping media, and when grown in cup media (large size, milky white, opaque (not penetrated by light, circular shape, convex elevation (convex), the surface is smooth shiny, the entire margin), including Gram negative bacteria, rod shaped, facultative anaerobic, motile, can degrade hydrogen peroxide, show positive oxidase, can ferment glucose and sucrose, grow well at pH 5 - pH 7, and not pathogenic to plants.

PERTUMBUHAN DAN KADAR KLOROFIL DAUN Acacia mangium PADA LAHAN BEKAS TAMBANG TIMAH DI PULAU BANGKA Robika Robika; Eka Sari
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 4 No 1 (2019): Ekotonia: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Tin-mined land has sandy characteristics (more than 95%), is very porous, low KTK, acidic pH and nutrient poor. Revegetation programs have been carried out to improve soil fertility using local and exotic species (Acacia mangium). Rapid growth, tolerance to various environmental conditions and high economic value are the reasons for choosing A. mangium as a revegetation plant. This study aims to analyze the growth and chlorophyll content of A. mangium leaves which grow in two locations of tin-mined land (Tanjung Ratu Village and Rebo Village). The results showed that A. mangium which was grown on a younger tin mined land (in Tanjung Ratu Village) showed an increase in root dry weight, root length, number of root nodules, and decreased leaf chlorophyll levels. On older tin mined land (in Rebo Village), root dry weight, root length, and number of root nodules were lower, but chlorophyll content increased. The characters affected can be used to determine the ability of tolerance and adaptation of A. mangium in tin mined land.

Co-Authors Aghita Ade Novia Hirmarizqi Ahmad Mustofa Anggi Nico Flatian Anggraeni Anggraeni Asrial Eddy Nurtjahya Eman Sulaeman Fika Dewi Pratiwi Hary Sulistyo Irfan Wahyudi Muslikhin Hidayat Novalia lia NUR ANNIS HIDAYATI Nur Azizah Rahmad Lingga Ratna Santi Rizky Putri Deshanda Robika Robika Ropalia, Ropalia Rosha Kurnia Fembriyanto Rossy Hertati S Syamsiah Suyatno Suyatno Syamsurizal Syamsurizal Yudi Setiawan Zulvia Intan Sari

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