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All Journal JURNAL PENELITIAN SAINTIKA Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Sains Indonesia BIO-CONS: Jurnal Biologi dan Konservasi Jurnal Ekonomi Pertanian dan Agribisnis
Ahmad Shafwan S. Pulungan, Ahmad Shafwan S.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN TALAS TERHADAP BAKTERI PATOGEN Pulungan, Ahmad Shafwan S.; Brata, Wasis Wuyung Wisnu
JURNAL PENELITIAN SAINTIKA Vol 17, No 2 (2017): SEPTEMBER 2017
Publisher : JURNAL PENELITIAN SAINTIKA

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

Abstract

Talas merupakan tanaman yang banyak dikonsumsi umbinya oleh masyarakat indonesia. Selain umbinya yang dimanfaatkan sebagai makanan, daun talas dapat dijadikan sebagai alternatif obat untuk antibakteri. Kandungan metabolit sekunder yang dimiliki oleh daun talas mampu menghambat pertumbuhan bakteri patogen Escherichia coli dan Bacillus cereus. Metode yang digunakan dalam penelitian ini adalahdengan menggunakan esktrak daun talas yang dibagi keberbagai variasi konsentrasi. Ekstrak daun talas menggunakan pelarut etanol. Hasil menujukkan bahwa masing-masing konsentrasi menunjukkan kemampuan antibakteri dalam menghambat pertumbuhan bakteri patogen. Konsentrasi terbaik dalam menghambat pertumbuhan bakteri adalah 50mg/ml. Semakin tinggi konsentrasi esktrak daun talas yangdigunakan maka kemampuan dalam menghambat pertumbuhan bakteri juga semakin besar.
Pengaruh Pemberian Pupuk Hayati Mikoriza Terhadap Pertumbuhan Tanaman Tomat (Lycopersicum esculentum Mill) Pulungan, Ahmad Shafwan S.; Rangkuti, Marlinda Nilan Sari; Rahmi, Nisrina Afiqah
Jurnal Ekonomi Pertanian dan Agribisnis Vol. 1 No. 1 (2023): Juli - Desember
Publisher : CV.ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62379/jepag.v1i1.1295

Abstract

Mycorrhiza is a type of biological fertilizer that can improve soil health, environmental protection, soil nutrient status and agricultural yields. The demand for tomatoes continues to increase every year along with population growth and in 2021. In order to meet the need for tomato consumption every year, various efforts are being made to continue to increase production through the use of minimal and environmentally friendly output such as the use of mycorrhiza biological fertilizer. This research aims to determine the effect of the use and dosage of mycorrhizal fertilizer on the growth of tomato plants (Lycopersicum esculentum Mill). This research was carried out on Jln Rela, Gg. Danau Toba, No. 16. starting from 10 September 2023 - 11 November 2023. Mycorrhizal fertilizer was given in 2 treatments, namely 5 gr and 10 gr with 2 repetitions each and control (no mycorrhizal fertilizer was given). Providing 10g of mycorrhizal biofertilizer/plant provides the best growth and results for tomato plants with the parameters of plant height and number of leaves.
Isolasi dan Identifikasi Jamur Endofit pada Daun Sirih Merah (Piper crocatum Ruiz & Pav) dengan Potensi Antibakteri terhadap Escherichia coli dan Staphylococcus aureus Siregar, Santa Gracia; Pulungan, Ahmad Shafwan S.
BIO-CONS : Jurnal Biologi dan Konservasi Vol. 7 No. 1 (2025): BIO-CONS: Jurnal Biologi dan Konservasi
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31537/biocons.v7i1.2196

Abstract

Daun Sirih Merah (Piper crocatum Ruiz & Pav) merupakan tanaman yang sering digunakan oleh masyarakat karena dapat mengobati berbagai macam penyakit, di antaranya sebagai antikanker, mengobati gangguan pencernaan, antioksidan hingga berpotensi sebagai antibakteri. Daun sirih merah berpotensi sebagai antibakteri karena adanya kandungan senyawa metabolit sekunder aktif. Pemanfaatan jamur endofit termasuk salah satu mencegah kelangkaan. Jamur endofit mampu menghasilkan senyawa metabolit sekunder yang sama dengan tanaman inangnya. Penelitian ini bertujuan untuk mengisolasi jamur endofit pada daun sirih merah dan mengetahui potensi yang dihasilkan jamur endofit sebagai antibakteri. Metode yang digunakan adalah isolasi jamur endofit, pemurnian jamur endofit, karakteristik jamur endofit, serta uji aktivitas antibakteri jamur endofit. Hasil penelitian diperoleh sebanyak 5 isolat jamur endofit dan masing-masing isolat memiliki kemampuan menghambat pertumbuhan bakteri Escheria Coli dan Stapyhloccocus aureus ditandai dengan terbentuknya zona hambat. Diameter zona hambat yang terbentuk pada bakteri Escherichia coli yang paling besar yaitu isolat JSM 4 dengan diameter zona hambat 18,9 mm dan yang paling kecil yaitu isolat JSM 2 dengan diameter zona hambat 10,8, sedangkan pada bakteri Staphylococcus aureus yang paling besar isolat JSM 5 dengan diameter zona hambat 24,9 mm dan yang paling kecil yaitu isolat JSM 2 dengan diameter zona hambat 10,8 mm.
PENGARUH POLA MAKAN TERHADAP SISTEM IMUN PASIEN YANG MENGALAMI DIARE DI PUSKESMAS MOGANG Pandiangan, Vany Natalia; Tamba, Lisna P.J.; Pulungan, Ahmad Shafwan S.
Jurnal Sains Indonesia Vol. 6 No. 1 (2025): Vol 6 No 1 (2025): Volume 6, Nomor 1, 2025 (Maret)
Publisher : PUSAT SAINS INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59897/jsi.v6i1.229

Abstract

Diarrhoeal disease is a condition in which the shape of faeces changes and the frequency of bowel movements increases abnormally. The emergence of the incidence of diarrhoea is the factor of providing an unhealthy diet is likely to cause diarrhoea so that it is more susceptible to disease. This study aims to analyse the relationship between diet and immune system of patients with diarrhoea in Mogang Health Centre. The results showed that diarrhoeal disease is a significant health problem in Indonesia, especially in toddlers, who have a high risk of dehydration and malnutrition. An unbalanced diet and lack of nutritional intake can contribute to a decrease in the immune system, thus helping the condition of diarrhoea sufferers. This study shows that children who consume a nutritionally balanced diet have a better immune system compared to those who rely on unhealthy foods.
Potential Microplastic-Degrading Bacteria from Mangrove Sediment in The Paluh Getah Area, Percut Sei Tuan District Pulungan, Ahmad Shafwan S.; Utami, Larasati Arum; Rangkuti, Marlinda Nilan Sari; Ningsih, Ayu Putri; Muliandhira, Cindy Suci
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12647

Abstract

Microplastic pollution poses a severe threat to marine ecosystems due to its persistence and toxicity, necessitating innovative biodegradation strategies. This study explored the potential of bacteria isolated from mangrove sediments of the Paluh Getah mangrove forest, North Sumatra, to degrade common microplastics, including LDPE, HDPE, PET, PP, and PS. Ten bacterial isolates were obtained and screened for their ability to grow on microplastic-supplemented mineral salt medium over 20 days. Three isolates (BPM 5, BPM 9, and BPM 10) demonstrated robust growth, with biochemical tests confirming catalase activity critical for managing oxidative stress during plastic degradation. Molecular identification via 16S rRNA gene sequencing revealed the isolates as Enterobacter sp. and Brevibacillus parabrevis, both known for their biodegradation capacities. The findings underscore the diverse metabolic pathways these bacteria employ to utilize microplastics as carbon sources. This research highlights the promise of mangrove sediment bacteria as eco-friendly bioremediation agents to mitigate microplastic pollution in coastal environments. Further studies are required to optimize degradation conditions and elucidate enzymatic mechanisms to enhance practical applications.
Co-Authors Ayu Putri Ningsih Larasati Arum Utami Muhammad Rivai Muliandhira, Cindy Suci Pandiangan, Vany Natalia Rahmi, Nisrina Afiqah Rangkuti, Marlinda Nilan Sari Siregar, Santa Gracia Tamba, Lisna P.J.