Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Biogenesis: Jurnal Ilmiah Biologi Biota Biosaintifika: Journal of Biology & Biology Education BioEksakta : Jurnal Ilmiah Biologi Unsoed Molekul: Jurnal Ilmiah Kimia
Hendro Pramono
Faculty Of Biology, Universitas Jenderal Soedirman, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Veterinary

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

 1   2 
Kualitas Yoghurt dengan Penambahan Bifidobacterium sp. Bb2E Putri, Yolandina Salsabila; Kusharyati, Dyah Fitri; Pramono, Hendro
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 1 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.1.1802

Abstract

Yoghurt merupakan produk pangan fungsional hasil fermentasi dari susu yang melibatkan peran bakteri asam laktat (BAL) Lactobacillus bulgaricus dan Streptococcus thermophillus. Menurut beberapa penelitian terdapat BAL yang memiliki ketahanan lebih baik dalam saluran pencernaan manusia, yaitu Bifidobacterium sp.. Selain itu, Bifidobacterium sp. memiliki manfaat diantaranya adalah meningkatkan fungsi pencernaan, menurunkan kolestrol, sebagai antioksidan dan anti inflamasi, mengurangi gejala alergi, serta dianggap sebagai salah satu bakteri probiotik yang penting dalam tubuh manusia. Tujuan dari penelitian adalah mengetahui pengaruh penambahan Bifidobacterium sp. Bb2E terhadap kualitas yoghurt dan mengetahui konsentrasi Bifidobacterium sp. Bb2E yang terbaik dari segi organoleptik. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 kali ulangan, sehingga terdapat 12 unit percobaan. Perlakuan yang diterapkan adalah perbandingan konsentrasi starter yoghurt yang berbeda dari BAL L. bulgaricus, S. thermophillus dan substitusi Bifidobacterium sp. Bb2E dengan perbandingan 2:2:0 (Y0), 2:2:1 (Y1), 2:2:2 (Y2), dan 2:2:3 (Y3). Variabel dalam penelitian ini, variabel bebas, yaitu konsentrasi Bifidobacterium sp. Bb2E dan variabel terikat, yaitu kualitas yoghurt. Parameter utama adalah kadar asam laktat. Parameter pendukung, yaitu total BAL pada yoghurt, nilai pH, dan sifat organoleptik pada yoghurt. Data diolah dengan Analysis of Variance (ANOVA) dengan taraf kesalahan 5%. Penambahan Bifidobacterium sp. Bb2E tidak memberi pengaruh nyata terhadap kualitas yoghurt dari segi kadar asam laktat, pH, dan total BAL dan yoghurt dengan starter Lactobacillus bulgaricus : Streptococcus thermophillus : Bifidobacterium sp. Bb2E dengan perbandingan konsentrasi 2:2:3 merupakan yoghurt yang disukai konsumen dengan nilai rata-rata tertinggi pada uji organoleptik.
Regional Variations in rpoB Gene Mutations and Their Association with Rifampicin Resistance in Mycobacterium tuberculosis Widodo, Widodo; Wahyono, Daniel Joko; Oedjijono, Oedjijono; Pramono, Hendro
Molekul Vol 20 No 1 (2025)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2025.20.1.13215

Abstract

ABSTRACT. The increasing incidence of tuberculosis (TB) remains a global challenge, driven by the emergence of Mycobacterium tuberculosis resistance to antituberculosis drugs. This study investigated the relationship between rpoB gene mutations, rifampicin resistance levels, and the geographic origin of multidrug-resistant M. tuberculosis (MDR-TB) isolates. A total of 30 MDR-TB isolates were collected from the Central Java Provincial Health and Calibration Testing Laboratory between January and December 2023. Rifampicin resistance levels ranged from 5 to 80 µg/mL and were assessed using the microculture method, while DNA sequencing identified rpoB mutations. The results showed that rifampicin exposure significantly influenced rpoB mutation frequencies, with Ser531Leu (50%), His526 (16.7%), Leu511 (6%), Leu533 (6%), and Gln513 (6%) being the most common. Geographic variations were observed, with isolates from the ex-residencies Pekalongan, Pati, and Banyumas Residencies harboring seven, six, and four distinct mutations, respectively. Mutations such as Leu511Arg+His526Ser and Asp516Val were detected at low rifampicin concentrations (5–10 µg/mL), whereas Ser531Leu mutations dominated at moderate levels (20–80 µg/mL). These findings confirmed that rpoB mutations were influenced by both the region of origin and rifampicin resistance levels, providing critical insights for improving TB diagnosis and optimizing MDR-TB treatment strategies. Keywords: Mycobacterium tuberculosis, rifampicin resistance, rpoB gene mutation
Kemampuan Bakteri Halotoleran dari Sedimen Mangrove Pantai Logending dalam Pelarutan Fosfat dan Penambatan Nitrogen Ramadani, Adib; Oedjijono, Oedjijono; Pramono, Hendro; Pratiwi, Meyta
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 7 No 1 (2025): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2025.7.1.14854

Abstract

Lingkungan mangrove dapat menjadi sumber yang baik untuk mendapatkan bakteri halotoleran yang berpotensi sebagai agensia pupuk hayati dengan kemampuan melarutkan fosfat dan menambat N2 bebas. Tujuan penelitian ini adalah menguji toleransi isolat bakteri asal sedimen mangrove terhadap salinitas, menguji kemampuan isolat bakteri halotoleran dalam pelarutan fosfat dan penambatan nitrogen bebas, dan karakterisasi fenetik isolat bakteri halotoleran terpilih. Hasil penelitian menunjukkan bahwa dari 43 isolat yang diteliti, sebanyak 29 isolat toleran terhadap NaCl 5-7%. Dari 29 isolat, sebanyak 11 isolat bakteri halotoleran (>5% NaCl) diketahui mampu melarutkan fosfat dan menambat nitrogen dengan tiga isolat terpilih (LG36, LG60, dan LG66). Ketiga isolat tersebut menunjukkan efisiensi pelarutan fosfat masing-masing 125, 123,72, dan 126,92; dan kemampuan penambatan nitrogennya berturut-turut 38,02 ppm; 28,4 ppm; dan 51,93 ppm. Identitas ketiga isolat terpilih menunjukkan bahwa isolat LG60 merupakan spesies anggota genus Rhizobium, sedangkan isolat LG36 dan LG66 belum dapat diidentifikasi pada level genus. Kata kunci: fiksasi nitrogen, halotoleran, mangrove, pelarutan fosfat
Petroleum Degradation by Bacteria Explored from Logending Mangrove Sediments Apriliani, Herlina; Pramono, Hendro; Oedjijono, Oedjijono; Widodo, Wimbuh Tri; Kristianto, Sonny; Putri, Rury Eryna; Unsunnidhal, Lalu
Biota Vol 12 No 1 (2026): Jurnal Biota 2026
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/biota.v12i1.29245

Abstract

Oil spills resulting from shipping activities, tanker-based oil transportation, and fuel oil usage can cause coastal pollution, particularly in sensitive ecosystems such as mangroves. More than 90% of petroleum consists of hydrocarbons with complex carbon chain structures, making them difficult to decompose. Biological remediation using microorganisms offers a promising alternative for pollution mitigation, as microbes can degrade petroleum components and oxidizing hydrocarbons. This study aimed to evaluate the petroleum-degrading ability of selected bacterial isolates obtained from mangrove sediments at Logending Beach. The research employed experimental and survey methods. The primary parameter measured was Total Petroleum Hydrocarbons (TPH), while supporting parameters included pH and bacterial population density. The study consisted of several stages, including bacterial isolation, screening, and evaluation of the petroleum degradation capacity of selected isolates. The results identified two potential bacterial isolates capable of degrading crude oil. Isolate LG62 exhibited a degradation efficiency of 71.40%, while isolate LG105 showed a degradation efficiency of 57.10%. Petroleum concentrations of 2% (v/v) and 5% (v/v) were degraded more effectively than higher concentrations. Overall, the two bacterial isolates (LG62 and LG105) from Logending mangrove sediments demonstrated significant potential as bioremediation agents for petroleum hydrocarbon contamination.
Genetic Homogenity of Commerson’s Anchovy (Stolephorus commersonnii) in Segara Anakan Cilacap Central Java Inferred from PCR-RFLP Markers Nuryanto, Agus; Dewi, Rani Eva; Pramono, Hendro
Biogenesis: Jurnal Ilmiah Biologi Vol 7 No 1 (2019)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v7i1.6352

Abstract

Commerson’s anchovy (Stolephorus commersonnii) is a small pelagic fish that live in a group and its existence is very abundant in Segara Anakan Cilacap. This anchovy is widely consumed by communities live around Segara Anakan. This leads to a high exploitation rate. Exploited populations generally have low genetic diversity. This study aims to evaluate genetic diversity of commerson’s anchovy population in Segara Anakan Cilacap inferred from PCR-RFLP of the cytochrome c oxidase 1 (CO1) gene. This study was conducted from January to April 2018 and used survey method by applying random sampling. As many as 30 samples of anchovy were taken. Genomic mtDNA was isolated using modified Chelex method. Partial sequences of the COI gene were amplified using a pair forward commercially available primer. The lengths of 650 base pair of the PCR products were digested with four restriction enzymes. The HindIII enzyme produces PCR-RFLP fragment with the size of 416 bp and 234 bp lengths, VspI produces 435 bp and 214 bp, CO1-TaqI produces 556 bp and 94 bp and RsaI produces 319 bp, 183 bp, and 148 bp fragments, respectively. The PCR-RFLP fragments were obtained from all samples but they produced uniform band pattern for all 30 anchovy individuals. These results indicated that the anchovy population in Segara Anakan Cilacap has monomorphic allele for all PCR-RFLP markers. Hence, it can be concluded that genetic homogenity was observed on anchovy population in Segara Anakan Cilacap as inferred from PCR-RFLP COI gene.
Co-Authors A.A. Ketut Agung Cahyawan W AGUS HERY SUSANTO Agus Irianto Agus Nuryanto Agus Nuryanto Andareswari, Novi Apriliani, Herlina Daniel Joko Wahyono Dewi, Rani Eva Dini Ryandini Dyah Fitri Kusharyati Fitriyani, Nur Lu'lu Ghifari, Muhammad Iqbal Kusbiyanto Kusbiyanto Kusbiyanto Kusbiyanto, Kusbiyanto Moh Husein Sastranegara Moh. Husein Sastranegara Muhammad Iqbal Ghifari Nael Huda Qonita Nael Huda Qonita Novi Andareswari Oedjijono Oedjijono, Oedjijono Petrus Hary Tjahja Soedibja Petrus Hary Tjahja Soedibja Pratiwi, Meyta Putri, Yolandina Salsabila Ramadani, Adib Rovik, Anwar Rury Eryna Putri Sonny Kristianto Syamsiar, Syamsiar Unsunnidhal, Lalu Widodo Widodo Wimbuh Tri Widodo