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All Journal Journal of Marine Research Indonesian Journal of Biotechnology Planta Tropika Biosaintifika: Journal of Biology & Biology Education
Fitrianto, Nur
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Immunology & microbiology Materials Science & Nanotechnology

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Variasi Karakter Anatomis Talus Padina australis Hauck 1887 (Dictyotales, Phaeophycota) di Pantai Karang Tengah Kabupaten Cilacap Samiyarsih, Siti; Ats’tsaury, Moch Iqbal Sufyan; Insan, Achmad Ilalqisny; Fitrianto, Nur
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v9i4.28208

Abstract

ABSTRAK: Karakter anatomi dapat digunakan untuk menentukan produktivitas kandungan alginat rumput laut P. australis Hauck. Penelitian ini bertujuan mengetahui variasi karakter anatomis talus Padina australis Hauck. Pengambilan sampel dengan purposive random sampling di pantai Karang Tengah, Kabupaten Cilacap. Persiapan mikroskopis dengan metode parafin dengan safranin 1% dalam alkohol 70%. Parameter yang diamati meliputi ketebalan epidermis, ukuran sel medula, ketebalan talus, dan ukuran tetra sporangia. Pengamatan struktur anatomi secara deskriptif dengan membandingkan karakter anatomi P. australis Hauck pada garis konsentris. Data karakter anatomi dianalisis dengan Uji-t dengan tingkat kepercayaan 95%. Hasil penelitian menunjukkan bahwa variasi karakter anatomi talus dengan garis konsentris 5 memiliki ketebalan epidermis adaxial dan abaxial masing-masing adalah 20,05 μm dan 12,55 μm, sedangkan pada garis konsentris 7 memiliki ketebalan 28,33 μm dan 18 μm. Ketebalan talus dengan garis konsentris 5 dan 7 masing-masing adalah 99,44 μm, 114,77 μm. Diameter meduler dengan garis konsentris 5 dan 7 masing-masing adalah 37,88 μm, 45,5 μm. Diameter rata-rata tetra sporangia masing-masing dengan garis konsentris 5 dan 7 yaitu 25,66 μm, 35,66 μm. Talus P. australis Hauck berdasarkan garis konsentris 5 dan 7 memiliki perbedaan ukuran pada ketebalan epidermis adaxial, ketebalan epidermis abaxial, ketebalan talus, diameter meduler, dan diameter tetra sporangia. Implikasi penelitian ini sebagai database pada data dasar karakter anatomi P. australis yang dikaitkan denggan produktsi alginat dan data dasar taksonomi.  ABSTRACT: Anatomical character data can be used to determine the productivity of P. australis Hauck's seaweed alginate content. Each thallus has a thallus size and the number of varied concentric lines. The aim of the research is to determine the anatomical characteristics of the Padina australis Hauck thallus. Seaweed sampling by purposive random sampling technique in Karang Tengah beach, Cilacap regency. Preparation of microscopic by paraffin method with safranin 1% in 70% alcohol. Parameters observed included thickness of the epidermis, size of a medullary cell, the thickness of thallus, and the size of tetra sporangia. The anatomical character data was analyzed by t-Test with a 95% confidence level. The result of the research showed that the anatomical character of the thallus with concentric line 5 had a thickness of adaxial and abaxial epidermis respectively is 20.05 μm and 12.55 μm, whereas in concentric line 7 had a thickness of 28.33 μm and 18 μm. The thickness of the thallus with concentric lines 5 and 7 respectively is 99.44 μm, 114.77 μm. Medullary diameter with concentric lines 5 and 7 respectively is 37,88 μm, 45,5 μm. The average diameter of tetra sporangia with concentric lines 5 and 7 respectively that is 25,66 μm, 35,66 μm. Thallus of P. australis Hauck based on concentric lines 5 and 7 has differences of sizes on the adaxial epidermal thickness, thickness of the abaxial epidermis, the thickness of the thallus, medullary diameter, and diameter of tetra sporangia. The implications anatomical characters associated with alginate productivity and taxonomic baseline data.
Selection of Soybean (Glycine max) Germplasm Against Biotrophic Fungi Disease Based on Anatomical Resistance Samiyarsih, Siti; Pratiwi, Ade Yuanita Putri; Muljowati, Juni Safitri; Fitrianto, Nur
Biosaintifika: Journal of Biology & Biology Education Vol 12, No 3 (2020): December 2020
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v12i3.25109

Abstract

The obstacle to increasing the soybean production is an infection of rust disease caused by the biotrophic fungus, Phakopsora pachyrhizi. The research objectives were to determine the anatomical resistance and the level of resistance of soybean cultivars against rust disease. The embedding method for observed leaf structural anatomy. The disease severity based on the method of International Working Group on the Soybean Rust (IWGSR) rating system.  The experiment was arranged as a Completely Randomized Design (CRD) with Factorial Pattern and five times repetition. The first factor was soybean cultivars, namely Gepak Kuning, Slamet, Tanggamus, and Wilis. The second factor was P. pachyrhizi inoculation with 0 uredospores/mL (uninoculated) and 104 uredospores/mL (inoculated). The results showed that the soybean cultivars that have thicker cuticle and epidermis, high trichomes and low stomatal density, and low of stomatal conductance have better anatomical resistance to leaf rust disease. Wilis and Slamet cultivars are resistant cultivars, indicated by disease intensity of 20% and 24.6%, respectively. While the Tanggamus is moderately resistant cultivar and Gepak Kuning is a susceptible cultivar, indicated by disease intensity of 56.5% and 85.3%, respectively. The novelty of selection soybean germplasm against biotrophic fungal disease are important and effectiveness in order to increase the crop productivity. These three soybean cultivars potentially serve as genetic sources to develop high yielding soybean cultivars and resistant to rust disease.
Tea Fungus Beverages from Torch Ginger (Etlingera elatior): Total microbial, Physicochemical, and Antioxidant Activity Fitrianto, Nur; Husen, Fajar; Samiyarsih, Siti; Ratnaningtyas, Nuniek Ina; Palindung, Lusia Seti; Azizah, Enur
Biosaintifika: Journal of Biology & Biology Education Vol 15, No 3 (2023): December 2023
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v15i3.47944

Abstract

Functional beverages are needed to maintain health and fitness as a part of the instant lifestyle and degenerative diseases. The scientific findings on torch ginger (Etlingera elatior) flower (TGF) as a tea fungus beverage (Kombucha) are still limited. This research evaluated total microbes, physicochemical properties, and antioxidant activity 7 and 14 days after fermentation (daf) of TGF kombuchas. In addition, TGF in variant 0% (TGF0), 5% (TGF5), 10% (TGF10), and 15% (TGF15) are fermented with 3% of SCOBY, 20% culture, 1% green tea, and 10% sucrose. The antioxidant activities of TGF kombuchas were evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-Azino-bis 3-Ethylbenzothiazoline-6-Sulfonic Acid (ABTS) assay—the phenolic and flavonoid content using Folin-Ciocalteu method-gallic acid equivalent, and quercetin acid equivalent, respectively. The result showed that the fermentation time (p0.05) was affected by the properties of TGF kombuchas. Total microbes, physicochemical properties (pH, acidity, cellulose pellicle weight, phenolic, flavonoid content), and antioxidant activity were higher in 14 than in 7 days. Total soluble solid and total yeast count showed lower values in 14 days. The increase in total bacteria count, TGF15%, led to the highest increasing density from 8.08 ± 0.02Log CFU/mL on seven daf to 13.34 ± 0.04Log CFU/mL on 14 daf. The TGF 10% and 15% kombuchas in 14 dafs showed abundance in phenolic and flavonoid content, 121.45±1.07mg GAE/mL and 1.70±0.04 mg QAE/mL, respectively. During 14 daf and TGF 10%, the Kombucha of torch ginger flower demonstrated high antioxidant activity at 85.92±0.07% DDPH and 63.05±0.97ABTS. It is expected to aid future research into developing functional kombucha beverages.
Histopathological Evaluation of Soybean (Glycine max (L.) Merr.) Strains Resistance to Sclerotium rolfsii Disease Samiyarsih, Siti; Erlina, Chindy Ayu; Muljowati, Juni Safitri; Fitrianto, Nur
PLANTA TROPIKA Vol 10, No 1 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i1.8907

Abstract

Sclerotinia infection of stem and leaf of soybean Glycine max (L.) Merr. caused by the fungal pathogen of Sclerotium rolfsii has recently become more important in the Indonesian soybean production area. This study aimed to evaluate the level of resistance and intensity of infection by S. rolfsii in four soybean strains. The research was arranged in a factorial completely randomized design. The observed variables include the anatomy characteristics of leaves and stems of soybean and disease intensity caused by S. rolfsii. The data were analyzed quantitatively with the Analysis of Variance (ANOVA) at 95% and 99% confidence level, followed by the Least Significant Difference Test (Fisher’s LSD) at the level of 5%. Soybean leaves and stem anatomy inoculated by S. rolfsii showed a decrease in the stomatal density, epidermis thickness, and mesophyll thickness as well as a damaged cuticle, damaged stem epidermis, and swollen stem cortex. Four strains inoculated by S. rolfsii showed a higher disease intensity of 40%-80% compared to the resistant cultivar ('Dering') and susceptible cultivar ('Wilis'), showing disease intensity of 20% and 40%, respectively.
Integrated metabolite profiling and in silico screening reveal the cholesterol‐modulating potential of tauco, an Indonesian fermented soybean paste Nabillah, Salfa Athallah Agtari; Wati, Roidah Cahya; Nurmilah, Siti; Fitrianto, Nur; Ningsih, Dian Riana; Frediansyah, Andri
Indonesian Journal of Biotechnology Vol 31, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.110562

Abstract

Tauco, a traditional Indonesian fermented soybean paste, is a promising yet under‐characterized source of dietary bioactives. To systematically evaluate its functional potential, we first identified ultrasonic‐assisted extraction (UAE) as the most efficient method, yielding the highest total phenolic content (28.70 mg GAE/g) and the strongest in vitro antioxidant activity (ABTS IC50 = 0.238 mg/mL). Untargeted LC–HRMS‐based metabolite profiling of this optimal extract revealed a diverse phytochemical profile rich in isoflavone aglycones, sterols, and specialized lipids. To link this chemical inventory to a specific health‐related mechanism, we performed molecular docking against HMG‐CoA reductase (HMGR), the rate‐limiting enzyme in cholesterol biosynthesis. This in silico screening prioritized the triterpenoid uvaol and the phytosterol stigmasterol as top‐binding candidates, with predicted binding affinities stronger than the reference ligand (−8.2 and −7.6 kcal/mol respectively). Overall, our integrated approach shows that UAE efficiently recovers a complex mixture of antioxidants from tauco and identifies specific metabolites with high predicted affinity for a key cardiometabolic target, providing a mechanistic hypothesis for its functional benefits and prioritizing lead compounds for future validation.
Co-Authors Andri Frediansyah, Andri Ats’tsaury, Moch Iqbal Sufyan Azizah, Enur Dian Riana Ningsih Erlina, Chindy Ayu Fajar Husen Iis Rostini Insan, Achmad Ilalqisny Juni Safitri Muljowati JUNIANTO JUNIANTO Nabillah, Salfa Athallah Agtari Nuniek Ina Ratnaningtyas Nurmilah, Siti Palindung, Lusia Seti Pratiwi, Ade Yuanita Putri Siti Samiyarsih Syauqibik, Achmad Wati, Roidah Cahya