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All Journal JBIO: jurnal biosains (the journal of biosciences) Jurnal Pelita Pendidikan Biosfer: Jurnal Tadris Biologi JURNAL PENELITIAN SAINTIKA Jurnal Pendidikan Biologi BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains JOURNAL OF SCIENCE AND SOCIAL RESEARCH Jurnal Review Pendidikan dan Pengajaran (JRPP) JURNAL PENDIDIKAN MIPA Jurnal Pembelajaran dan Biologi Nukleus Best Journal (Biology Education, Sains and Technology) BioEksakta : Jurnal Ilmiah Biologi Unsoed Jurnal Scientia Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Jurnal Pengabdian kepada Masyarakat Nusantara JURNAL BIOSHELL Bioscientist : Jurnal Ilmiah Biologi Jurnal Pendidikan dan Pembelajaran Indonesia (JPPI) Prosiding Seminar Nasional Biologi, Teknologi dan Kependidikan (Biotik) Jurnal Pendidikan Indonesia (Japendi) Jurnal Pelita: Jurnal Pembelajaran IPA Terpadu Meta: Journal of Science and Technological Education
Syahmi Edi
Program Studi Pendidikan Biologi, Program Pascasarjana, Universtias Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Journal : JBIO: jurnal biosains (the journal of biosciences)

 1 
Uji Tanin Pada Jenis Rotan-Rotanan Yang Terdapat Di Hutan Aek-Nauli Parapat Kabupaten Simalungun Sumatera Utara Rahmad Husein; Syahmi Edi
JBIO: jurnal biosains (the journal of biosciences) Vol 2, No 1 (2016): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v2i1.4012

Abstract

Penelitian ini bertujuan untuk mengetahui kadar tanin pada rotan di Hutan Penelitian Aek-Nauli Parapat Kabupaten Simalungun  berdasarkan ketinggian tempat yang berbeda. Penelitian dilaksanakan selama 3 bulan terhitung mulai bulan Februari 2016 Sampai April 2016. Populasi penelitian ini adalah keseluruhan  jenis Rotan yang terdapat di hutan penelitian Aek Nauli Parapat Kabupaten Simalungun Sumatera Utara sedangkan sampel dari penelitian ini adalah keseluruhan jenis Rotan  yang  berhasil ditemukan dilokasi penelitian tersebut. Penelitian dilakukan dengan survey eksplorasi yang didasarkan pada perbedaan ketinggian (1200 mdpl, 1400 mdpl, dan 1600 mdpl). Hasil penelitian didapatkan 3 jenis Rotan  yang terdiri dari Calamus rotang, Plectocomia elongata, Calamus caesius. Uji kadar tanin yang dilakukan pada sampel menunjukkan hasil positif (ada) 1 jenis rotan, yaitu Plectocomia elongate dan Calamus caesius, Calamus rotang tidak positif (tidak ada) menghasilkan senyawa tanin. Melalui pengukuran faktor fisika-kimia diperoleh kelembaban tanah rata-rata sebesar 4,9 %, pH tanah berkisar antara 6,5-6,8, suhu tanah 270 C-280 C, kelembaban udara rata-rata 91%, suhu udara minimum 230C, suhu udara maksimum 240 C, intensitas cahaya matahari 46,85 Candela. Kata Kunci : Metabolit Sekunder, Obat, Tanin
ANALISIS HABITAT (Anaphalis longifolia (Blume) Blume ex DC.) DI SUMATERA UTARA Hary Prakasa; Arina Zawani Akmal; Winda Awalina Guci; Syahmi Edi
JBIO: jurnal biosains (the journal of biosciences) Vol 4, No 2 (2018): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v4i2.10254

Abstract

Edelweis (Anaphalis longofilia (Blume) Blume ex DC.) merupakan tumbuhan yang termasuk ke dalam suku Asteraceae yang tersebar di wilayah dataran tinggi Indonesia. Anaphalis longofilia merupakan tumbuhan khas pegunungan di Sumatera. Kerusakan hutan, illegal loging, perubahan fungsi hutan, dan aktivitas manusia menyebabkan hilangnya tumbuhan ini dari habitatnya. Penelitian ini bertujuan untuk menganalisis habitat A. longifolia yang tersebar di Sumatera Utara, Indonesia. Sebanyak 33 sampel penelitian diperoleh dari kabupaten Karo, Samosir, dan Toba Samosir di Sumatera Utara. Data dianalisis menggunakan program ArcGis 10.3 dengan dikombinasikan menggunakan berbagai data ekologi dari berbagai sumber. Hasil penelitian menunjukkan bahwa A. longifolia tersebar di wilayah dataran tinggi Sumatera Utara dengan Berdasarkan hasil analisis, A longifolia memiliki ciri habitat dengan ketinggian 1000-2000 mdpl, curah hujan 1500-2500 mm/tahun, menempati 3 tipe tutupan lahan (hutan tanaman industri, tanah terbuka, dan pertanian lahan kering), tersebar pada 3 jenis tanah (humic cambisol, orthic acrisol, dan orthic podzols), terdapat pada kemiringan lahan >60, dan berada pada 3 kondisi kritis lahan (lahan kritis, agak kritis, dan sangat kritis). Hasil penelitian diharapkan dapat menjadi informasi penting dalam proses budidaya dan konservasi A. longifolia.
PENGARUH LAMA PENYIMPANAN DAGING AYAM PADA SUHU RUANG DAN REFRIGERATOR TERHADAP ANGKA LEMPENG TOTAL BAKTERI DAN ADANYA BAKTERI Salmonella sp Syahmi Edi; Roro Shofiyah Nur Rahmah
JBIO: jurnal biosains (the journal of biosciences) Vol 4, No 1 (2018): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v4i1.9452

Abstract

The purpose of this research is to understand the existence of bacteria contamination as an indicator of consumption feasibility in chicken meat. The research used 100 grams of chicken meat sample from on of the traditional market in Medan. Each sample was grown on Nutrient Agar and Salmonella Shigella Agar media. If the colony grows on SSA media that appear convex and clear yellow, it will followed by biochemical tests including Triple Sugar Iron Agar and Simmons Citrate Agar. The results showed that chicken meat storage at room temperature for 9 hours and 12 hours above maximum value of SNI (above 1 x 106), that is 173 x 104 and 354 x 104. The results of analysis of variance samples of chicken meat stored at room temperature showed the value of Fcount (101,356) > Ftable (2,866), storage duration of chicken meat at the room temperature have a significant effect to the total plate bacteria count. The results of analysis of variance samples of chicken meat stored at refrigerator temperature showed the value of Fcount (21,443) > Ftable (2,866), storage duration of chicken meat at the refrigerator temperature have a significant effect to the total plate bacteria count. Based on the results of further tests using BNT test obtained that the storage duration of chicken meat at room temperature for 3 hours have a very significant effect on the total plate bacteria count. The results of further tests using BNT test, that chicken meat storage at room temperature have a very significant effect between treatment for 0 hours and 3 hours of storage to total plate bacteria count. While at refrigerator temperature have a very significant effect between treatment for 9 hours and 12 hours of storage to total bacterial plate number. The results showed that 2 samples from 10 samples tested were positive contaminated by Salmonella sp. This indicates that the quality of chicken meat that has been stored for more than 9 hours at room temperature does not accord suit to the standards based on Indonesian Nasional Standard. Keywords: Chicken Meat, Storage Duration, Total Plate Bacteria Count, Salmonella sp.
ANALISIS VARIASI MORFOLOGI DAN HABITAT EDELWEIS (Anaphalis spp.) DI KAWASAN SEKITAR DANAU TOBA Syahmi Edi; Harry Prakasa; Yusran Efendi Ritonga
JBIO: jurnal biosains (the journal of biosciences) Vol 6, No 1 (2020): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v6i1.14957

Abstract

Penelitian ini bertujuan untuk mengetahui variasi morfologi edelweis (Anaphalis spp.) dan mengetahui faktor fisika-kimia lingkungan di Kawasan Sekitar Danau Toba. Penelitian telah dilaksanakan di daerah dataran tinggi dengan ketinggian 1000-2000 mdpl. (Meter di atas permukaan laut) yaitu Gunung Pusuk Buhit, Kabupaten Samosir, Bukit Sipiso-piso (Kabupaten Karo), Taman Eden, (Kabupaten Toba Samosir). Metode yang di lakukan adalah dengan metode explorasi. Sampel yang di amati karakter morfologi dan juga mencari faktor fisika-kimia lingkungan berupa pH tanah, kelembapan udara, suhu udara, ketinggian, suhu tanah dan struktur tanah. Jenis edelweis yang di peroleh dari ke 3 lokasi penelitian hanya 1 jenis yaitu (Anaphalis longofilia) (Blume) Blume ex DC. Berdasarkan cluster analysis atau Analisis Gerombol menggunakan software NTSYS, Edelweis (Anaphalis) di 3 lokasi penelitian (Gunung Pusuk Buhit, Bukit Sipiso-piso, Taman Eden) terbagi menjadi 3 kelompok dan memiliki variasi morfologi yang rendah dengan memiliki nilai kesamaan morfologi 0,80 (80%). Seluruh sampel memiliki nilai similaritas di atas 60%, hal ini menunjukkan bahwa kelompok tersebut di kategorikan masih dalam 1 spesies. Hasil pengukuran faktor fisika-kimia lingkungan di 3 lokasi penelitian, diperoleh ph tanah 6-8, kelembapan udara 70-76%, suhu udara 26-310C. Edelweis (Anaphalis) ditemukan di ketinggian antara 1234-1889 mdpl. dengan tekstur tanah lempung berpasir.
EFFECT OF SOAKING TIME AND CONCENTRATION OF GIBERELIN (GA3) ON THE GROWTH OF GARLIC (Allium sativum) VAR. SANGGA SEMBALUN Syahmi Edi; Malem Teta Sinulingga
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.43694

Abstract

This study aims to determine the germination of garlic (Allium sativum) var. Sangga sembalun to the treatment of soaking time and GA3 concentration. This research was conducted in the field of planting in Sukandebi Village, Naman Teran District, Karo Regency. This research was conducted from March to July 2022. The research design used was a factorial completely randomized design (CRD) with 2 factors and 4 replications. The first factor is the soaking time of GA3 which is 12 hours and 24 hours. The second factor was the concentration of GA3, namely 0 ppm, 3 ppm, 6 ppm, 9 ppm, and 12 ppm. The parameters observed consisted by time of seed germination, germination percentage, sprout height, and root length. The data obtained from this study were analyzed by analysis of variance (ANOVA) and to determine the best treatment, Duncan Multiple Range Test (DMRT) was conducted at the 5% significance level. The results of the study showed that the soaking time and GA3 concentration on garlic var. Sangga sembalun significantly affected all parameters of observation which are time of seed germination, germination percentage, sprout height, and root length. The results showed that the soaking time of garlic var. Sangga sembalun for 24 hours was able to speed up the time of emergence of sprouts, germination percentage, sprout height, and root length. The concentration of 15 ppm GA3 can accelerate the time to sprout and increase the percentage of germination, while the concentration of 9 ppm GA3 increases the sprout height and root length.
THE EFFECT OF LIQUID ORGANIC FERTILIZER FROM CABBAGE WASTE ON THE GROWTH OF PAKCOY (Brassica rapa L. Var. Chinensis) Syahmi Edi; Veby Emeninta Br Barus
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i2.50408

Abstract

This study aims to determine the effect of liquid organic fertilizer from cabbage waste on the growth of mustard greens (Brassica rapa L. Var Chinensis). This research was conducted from March to May 2022 in Sukandebi Village, Naman Teran District, Karo Regency. This type of research is an experimental study with Non Factorial Completely Randomized Design, with 5 treatments and 5 replications. Analysis of research data used analysis of variance (ANOVA) with Duncan's multiple range test or Duncan's Multiple Range Test (DMRT). The parameters observed in this study were plant height, number of leaves, root length, fresh weight and dry weight. From the results of the study it was concluded that liquid organic fertilizer from cabbage waste had a significant effect on the observation of plant height, number of leaves, root length, fresh weight, and dry weight. The best growth of pakcoy mustard (Brassica rapa L. Var Chinensis), was at a dose of 500 ml/polybag. Meanwhile, the lowest growth of mustard greens (Brassica rapa L. Var Chinensis) was found in the control.
THE EFFECT OF KEPOK BANANA PEEL EXTRACT (Musa acuminate balbisiana Colla) AND BAP ON THE GROWTH OF RED POTATO PLANLETS (Solanum tuberosum L.) IN VITRO Edi, Syahmi; Parhusip, Tiropa Oktavia; Panggabean, Nurul Huda
JBIO: jurnal biosains (the journal of biosciences) Vol 10, No 1 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v10i1.60290

Abstract

This research aims to determine the effect of from kepok banana peel extract (Musa acuminata balbisiana Colla) and BAP and their interaction on the growth of red potato plantlets (Solanum tuberosum L.) in vitro. This research was conducted in September-October 2023 at the G10 Agrotech Medan Plant Tissue Culture Laboratory Jl. Sei Bahorok No. 47 F Medan Baru. This research used a factorial Completely Randomized Design (CRD) with two factors. The first factor is the concentration of Kepok banana peel extract in 3 levels, namely (0, 25 and 50 g/L) and the second factor is BAP which consists of 4 levels, namely (0, 0.5, 1 and 1.5 mg/L). 12 treatment combinations were obtained and each treatment was repeated 3 times to obtain 36 experimental units. The research parameters were plantlet height, number of shoots, number of leaves and number of roots analyzed using Analysis of Variance (ANOVA) and if they were significantly different, further tests would be carried out using the Duncan Multiple Range Test (DMRT) at the 5% level. The results showed that the treatment of kepok banana peel extract and BAP had a significant effect on plantlet height, number of shoots, number of leaves and number of roots. The highest average plantlet height was produced by banana peel extract 50gr/L (7.60 cm), BAP 1mg/L (6.70 cm). The highest number of shoots was produced by banana peel extract 50gr/L (6.33 shoots), BAP 1.5 mg/L (6.33 shoots). The highest number of leaves was produced by sweet corn extract 25 gr/L, namely (10.00 leaves), BAP 0.5 mg/L as much as (8.00 leaves). The highest number of roots was produced by the 50gr/L sweet corn extract treatment, namely (12.00 roots), the highest number of roots was produced by BAP 1 mg/L, namely (7.33 roots). The highest average plantlet height, number of shoots and leaves were produced by the A2B1 treatment interaction, namely 7.40 cm plantlet height, 6.33 shoots and 16.33 leaves. The highest number of roots was produced by the A2B2 treatment interaction, namely 8.67 roots.  This is an open-access article under the CC-BY-SA license                                                        
THE EFFECT OF KEPOK BANANA PEEL EXTRACT (Musa acuminate balbisiana Colla) AND BAP ON THE GROWTH OF RED POTATO PLANLETS (Solanum tuberosum L.) IN VITRO Edi, Syahmi; Parhusip, Tiropa Oktavia; Panggabean, Nurul Huda
JURNAL BIOSAINS Vol. 10 No. 1 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v10i1.60290

Abstract

This research aims to determine the effect of from kepok banana peel extract (Musa acuminata balbisiana Colla) and BAP and their interaction on the growth of red potato plantlets (Solanum tuberosum L.) in vitro. This research was conducted in September-October 2023 at the G10 Agrotech Medan Plant Tissue Culture Laboratory Jl. Sei Bahorok No. 47 F Medan Baru. This research used a factorial Completely Randomized Design (CRD) with two factors. The first factor is the concentration of Kepok banana peel extract in 3 levels, namely (0, 25 and 50 g/L) and the second factor is BAP which consists of 4 levels, namely (0, 0.5, 1 and 1.5 mg/L). 12 treatment combinations were obtained and each treatment was repeated 3 times to obtain 36 experimental units. The research parameters were plantlet height, number of shoots, number of leaves and number of roots analyzed using Analysis of Variance (ANOVA) and if they were significantly different, further tests would be carried out using the Duncan Multiple Range Test (DMRT) at the 5% level. The results showed that the treatment of kepok banana peel extract and BAP had a significant effect on plantlet height, number of shoots, number of leaves and number of roots. The highest average plantlet height was produced by banana peel extract 50gr/L (7.60 cm), BAP 1mg/L (6.70 cm). The highest number of shoots was produced by banana peel extract 50gr/L (6.33 shoots), BAP 1.5 mg/L (6.33 shoots). The highest number of leaves was produced by sweet corn extract 25 gr/L, namely (10.00 leaves), BAP 0.5 mg/L as much as (8.00 leaves). The highest number of roots was produced by the 50gr/L sweet corn extract treatment, namely (12.00 roots), the highest number of roots was produced by BAP 1 mg/L, namely (7.33 roots). The highest average plantlet height, number of shoots and leaves were produced by the A2B1 treatment interaction, namely 7.40 cm plantlet height, 6.33 shoots and 16.33 leaves. The highest number of roots was produced by the A2B2 treatment interaction, namely 8.67 roots.  This is an open-access article under the CC-BY-SA license                                                        
Co-Authors ., Herkules ., Lazuardi Amalia Akita Arina Zawani Akmal Armaniar, Armaniar Ashar Hasairin Asri, Elita Ayu Putri Ningsih Bimbi Nullah Binari Manurung Binari Manurung, Binari Br Bangun, Edmy Febriani CICIK SURIANI Cut Badzlina Roza Cut Badzlina Roza, Cut Badzlina Daulae, Abdul Hakim Daulay, Abdul Hakim Dewi Sri Lestari Sigalingging Elsa Bunga Dayanti Elsa Bunga Dayanti, Elsa Bunga Ely Djulia Ely Djulia Eryati Zetkas Eryati Zetkas, Eryati Fauzi Fauzi Fauzi Fauzi Fauziyah Harahap Fauziyah Harahap Fitri Rahmadani Fitri Rahmadani, Fitri Gultom, Novayanti Gunawan, Roni Harahap, Salamah Hariyadi, Itra Harry Prakasa Hary Prakasa Hasanah, Dwi Hasibuan, Mardhiyah Riswan Hasruddin Hasruddin Hasruddin Herbert Sipahutar Herbert Sipahutar, Herbert Herkules Herkules Herkules, Herkules Hutri Purnama Sari Lubis Hutri Purnama Sari Lubis, Hutri Purnama Sari Intan Bayati Nasution Intan Bayati Nasution, Intan Bayati Kamila, Aryediutami Naura Karinanta Sembiring, Surya Kelar, Luh Cinta Tarissyah Putri Khairun Nisa' Lestari Sigalingging, Dewi Sri Limbong, Forentina Malem Teta Sinulingga Melva Silitonga Melva Silitonga Mufti Sudibyo, Mufti Nadhilla, Annisa Nasirwan Nasirwan Nasution, Marina Azzahra Naura Kamila, Aryediutami Nora, Putri Nurajijah Nurajijah Nursamsu Nursamsu Nusyirwan Nusyirwan Panggabean, Nurul Huda Panggabean, Syakilah Kurnia Fahmi Parasetya, Eko Parhusip, Tiropa Oktavia Prayeni Margaretha Hutabalian Rahmad Husein Rizka, Chairany Roro Shofiyah Nur Rahmah Ruth Susanty, Revi Sailana Mira Rangkuti Sailana Mira Rangkuti, Sailana Mira Samsul Kamal Sari, Anggi Wulan Sari, Elvira Nanda Sembiring, Gres Anjelia Sembiring, Surya Karinanta Sihombing, Josephine Gloria Margareth Simanjuntak, Maria Meita Sinurat, Asri Sinuraya, Kenari Br Sipahutar , Herbert siti, siti aisyah Situmorang, Berri Sri Susanti Sri Susanti Sri Tia Indah Simamora Suryani, Cicik Susanty, Revi Ruth Syarifuddin Syarifuddin Syarifuddin Syarifuddin Veby Emeninta Br Barus Willyana Utari Siahaan Winda Awalina Guci Yusran Efendi Ritonga Zahara, Nurlia Zulpadly Zulpadly Zulpadly Zulpadly, Zulpadly