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Moralita Chatri
State University of Padang
Education Languange, Linguistic, Communication & Media Other

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POTENSI Aneurinibacillus thermoaerophilus STRAIN N25 DALAM PRODUKSI BIOLISTRIK PADA VARIASI STARTER Echy Dania Putri; Irdawati; Azwir Anhar; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/ddks4p57

Abstract

The development of renewable energy sources is important due to the increasing demand for electricity. Microbial Fuel Cell (MFC) is a technology that utilizes microorganisms to convert organic substrates into electrical energy. This study aims to determine the potential of Aneurinibacillus thermoaerophilus strain N25 in producing bioelectricity at different starter concentrations. The research was conducted using an experimental method with variations of starter concentrations in an MFC system. Bioelectricity production was measured using a digital multimeter in millivolts (mV). The results are expected to provide information about the optimal starter concentration for bioelectricity production by thermophilic bacteria.
UJI EFEKTIVITAS FUNGISIDA KIMIA TERHADAP JAMUR PATOGEN Fusarium sp. SECARA IN VITRO Cleoraissa Insyira; Bayo Alhusaeri Siregar; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v11i1.8001

Abstract

Fusarium sp. is a pathogenic fungus causing wilt disease in Acacia crassicarpa nurseries and reducing seedling quality in industrial forest plantations. The control of this disease is generally done with chemical (synthetic) fungicides, but the most effective one is not yet known. This study aimed to evaluate the effectiveness of several chemical fungicides against Fusarium sp. growth in vitro. The study was conducted from February to June 2025 at the Plant Protection Department (PPD) Laboratory, R&D Division of PT. Arara Abadi using a Completely Randomized Design with four treatments: control, Octave (prochloraz–manganese chloride complex), Besromil (metalaxyl), and Odeon (chlorothalonil), with three replications. The observed parameter was the percentage of fungal growth inhibition. Data were analyzed using ANOVA followed by Duncan’s test at a 5% significance level. The results showed that Octave exhibited the highest inhibitory effect with 100% inhibition and was significantly different from other treatments. Besromil and Odeon showed low inhibition and were not significantly different from the control. Therefore, prochloraz–manganese chloride complex was the most effective fungicide in inhibiting Fusarium sp. growth in vitro.
KEMAMPUAN PSEUDOMONAS BERFLUORESEN SEBAGAI AGEN ANTAGONIS TERHADAP Ralstonia solanaceaerum PENYEBAB LAYU TANAMAN NILAM (Pogestemon cablin Benth) Abil Pratama Putra; Linda Advinda; Moralita Chatri; Dezi Handayani
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v11i1.8088

Abstract

Patchouli (Pogestemon cablin Benth) is a cultivated plant that can produce oil and generate income for farmers. However, attacks by plant pests (OPT) often pose a challenge to patchouli production in Indonesia. One organism that causes wilt disease in patchouli plants is the bacterium Ralstonia solanaceaerum. Therefore, more environmentally friendly and sustainable control methods are needed. One strategy is the use of biological agents, especially antagonistic rhizosphere bacteria such as fluorescent pseudomonas. This study was conducted from June to August 2025 at the Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Padang State University. This study used a completely randomized design (CRD) as the experimental design. In this study, there were 6 treatments (different isolates), each repeated 3 times. The parameter observed was the formation of an inhibition zone using the disc diffusion method. The data were analyzed using analysis of variance (ANOVA). If there were significant differences, Duncan's New Multiple Range Test (DNMRT) was used at a 5% level. Based on the results and discussions, it can be concluded that all fluorescent Pseudomonas isolates tested have the ability to inhibit R. solanaceaerum, the cause of wilt disease in patchouli plants. The isolate with the best ability to inhibit the growth of R. solanaceaerum on patchouli plants was isolate Pf S36 with an inhibition zone of 20.37 mm, but there was no significant difference between the other isolates because the inhibition effectiveness was relatively uniform.
KEANEKARAGAMAN TUMBUHAN ANGIOSPERMAE DI LINGKUNGAN KAMPUS FMIPA UNIVERSITAS NEGERI PADANG Annisa Khairani; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v11i1.8092

Abstract

Angiosperms are a group of closed seed plants that have an important role in maintaining the balance of the ecosystem, especially in the campus environment that functions as a green open space. This study aims to know the diversity of Angiosperms found in the Faculty of Mathematics and Natural Sciences (FMIPA) Campus environment, Padang State University (UNP). The method used is direct observation with exploration techniques in several locations of the FMIPA campus. The data collected include local names, scientific names, families, and classifications of Angiosperms. The results of the observations show that the FMIPA UNP Campus environment has a fairly high diversity of Angiosperms, consisting of various monocot and dicot species originating from various families. This diversity is influenced by environmental conditions, management of campus green spaces, and the use of plants as ornamental plants, shade plants, and medicinal plants. The presence of Angiosperms in the campus environment plays an important role in supporting ecological, aesthetic, and educational functions.
KEANEKARAGAMAN TUMBUHAN DIKOTIL DI KAMPUS UNIVERSITAS NEGERI PADANG Melani Domisofa; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v11i1.8093

Abstract

This study was motivated by the important role of campus green spaces in supporting plant biodiversity conservation. The aim of this research was to identify and describe the diversity of dicotyledonous plants on the campus of Universitas Negeri Padang, West Sumatra, Indonesia. The research was conducted from November to December 2025 using a descriptive method. Data were collected through direct field observations by recording morphological characteristics of dicotyledonous plants, including growth habit, stems, leaves, and flowers. Plant identification was supported by the PlantNet application and relevant botanical literature. The data were analyzed descriptively by classifying species based on taxonomic levels. The results showed that all recorded plants belonged to the dicotyledonous group within the class Magnoliopsida, comprising 25 species, 22 genera, 14 families, and 10 orders. Dominant families included Anacardiaceae, Myrtaceae, Euphorbiaceae, Rubiaceae, Apocynaceae, Solanaceae, and Combretaceae, which exhibit diverse ecological roles and benefits. In conclusion, the Universitas Negeri Padang campus supports a relatively high diversity of dicotyledonous plants and functions as an important habitat for plant biodiversity. This study is recommended as baseline data for green space management, further botanical research, and biology education.
ANALISIS KONTAMINASI JAMUR PADA KUNYIT GILING CURAH DI PASAR LUBUK BUAYA KOTA PADANG Zulia Putri Azzahra; Dezi Handayani; Moralita Chatri; Irdawati
Jurnal Biogenerasi Vol. 11 No. 1 (2026): Volume 11, no 1, 2026, (Januari - Maret 2026)
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/biogenerasi.v11i1.8185

Abstract

Keamanan pangan sangat penting untuk melindungi kesehatan masyarakat, khususnya untuk produk pangan yang rentan terhadap kontaminasi mikroba. Kunyit bubuk curah yang dijual di pasar tradisional berisiko terkontaminasi jamur karena praktik penanganan yang tidak higienis, yang dapat mengurangi kualitas produk dan menimbulkan bahaya kesehatan. Penelitian ini bertujuan untuk mengetahui tingkat kontaminasi jamur pada kunyit bubuk curah yang dijual di Pasar Lubuk Buaya, Kota Padang, dan untuk mengidentifikasi karakteristik makroskopis jamur yang tumbuh. Penelitian ini dilakukan dari Oktober 2025 hingga Januari 2026 di Laboratorium Mikrobiologi, Departemen Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Padang. Desain penelitian deskriptif digunakan dengan metode pengambilan sampel purposif. Sampel kunyit bubuk curah dipilih dan dikumpulkan dari lima pedagang dengan tingkat kebersihan yang berbeda. Kontaminasi jamur dinilai menggunakan metode penghitungan kapang dan ragi (MYC) dengan teknik spread plate pada media Potato Dextrose Agar (PDA), diikuti dengan pengamatan makroskopis morfologi koloni jamur. Hasil menunjukkan bahwa semua sampel kunyit bubuk curah terkontaminasi jamur, dengan tingkat kontaminasi berkisar antara 2,67 × 10⁵ hingga 2,9 × 10⁶ CFU/g. Semua sampel melebihi batas maksimum yang diizinkan untuk kontaminasi mikroba sebagaimana ditetapkan oleh Badan Pengawas Obat dan Makanan Indonesia (BPOM). Jamur kontaminan yang diidentifikasi meliputi Aspergillus flavus, A. niger, Penicillium sp., dan ragi. Oleh karena itu, dapat disimpulkan bahwa kunyit bubuk curah yang dijual di Pasar Lubuk Buaya, Kota Padang, tidak memenuhi standar keamanan pangan mikrobiologis.
Analisis Produksi Biolistrik oleh Aneurinibacillus thermoaerophilus Strain N25 pada Variasi Konsentrasi Starter dalam Sistem Microbial Fuel Cell (MFC) Echy Dania Putri; Irdawati; Azwir Anhar; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 2 (2026): April - Juni 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/4102hx98

Abstract

The increasing demand for electrical energy drives the development of renewable energy technologies such as Microbial Fuel Cell (MFC), which converts organic substrates into electricity using microorganisms. This study aims to determine the effect of starter concentration and identify the optimal concentration of Aneurinibacillus thermoaerophilus strain N25 in bioelectricity production. An experimental method was used with a dual-chamber MFC system and starter concentrations of 3%, 6%, 9%, 12%, and 15%. Voltage production was measured using a digital multimeter (V) over 24 hours. The results showed that starter concentration affected bioelectricity production, with voltage increasing over time and reaching a peak at the 20th hour. Higher starter concentrations produced higher voltage due to increased microbial activity and more efficient electron transfer.
KEANEKARAGAMAN POHON PELINDUNG DI KAMPUS UNIVERSITAS NEGERI PADANG DAN MANFAATNYA Anisa Syahrul Rahmi; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 2 (2026): April - Juni 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/7mjpwc90

Abstract

The diversity of shade tree on campus plays an important role in supporting ecological, aesthetic, and educational functions of the environment. This study aimed to identify the species, number of individuals, and potential uses of tree-like plants at Padang State University campus. The study was conducted in December 2025 using survey and direct field observation methods with a qualitative descriptive approach. Species identification was based on plant morphological characteristics with the assistance of literature and plant identification applications. The results showed 1.544 tree individuals belonging to 26 species from 17 families. The most dominant species was Leucaena leucocephala, followed by Pterocarpus indicus, Terminalia catappa, Terminalia mantaly, and Veitchia merillii. The high diversity was influenced by habitat heterogeneity, tropical climate conditions, and variations in soil physical and chemical properties. The presence of tree vegetation contributes to improved air quality, microclimate regulation, CO₂ absorption, and habitat provision for other organisms. The UNP campus area has a high diversity of tree-like plants and plays an important role in supporting the sustainable management of campus green open spaces.
KEANEKARAGAMAN TUMBUHAN MONOKOTIL DI KAMPUS UNIVERSITAS NEGERI PADANG Rahaditha Dwi Hisana; Moralita Chatri
Jurnal Biogenerasi Vol. 11 No. 2 (2026): April - Juni 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/746vdd66

Abstract

Plant diversity plays an important role in maintaining environmental balance, particularly in urban areas. Universitas Negeri Padang has considerable potential for plant diversity, especially within the monocotyledonous plant group (Monocotyledonae). This study aimed to identify and describe the diversity of monocot plant species in the campus environment based on their morphological characteristics. The research employed a descriptive method through field observations by recording morphological traits, including growth habit, stem, leaves, and reproductive organs. Species identification was carried out using botanical literature and taxonomic references, while data were analyzed descriptively based on taxonomic levels. The results showed that 24 species of monocot plants were identified, belonging to 12 families and 5 orders, namely Arecales, Asparagales, Poales, Zingiberales, and Alismatales. The dominant families included Arecaceae, Araceae, Asparagaceae, and Poaceae. The identified species exhibited morphological variations in leaf structure, stem, root system, and reproductive organs. This diversity reflects the relationship between morphological characteristics and environmental conditions, and also provides educational value as a learning resource in plant morphology and taxonomy studies.
INVENTARISASI TANAMAN HIAS DI KAMPUS UNIVERSITAS NEGERI PADANG Mina Almiah; Moralita Chatri; Linda Advinda; Filza Yulina Ade
Jurnal Biogenerasi Vol. 11 No. 2 (2026): April - Juni 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/yg3bpj84

Abstract

Inventarisasi tanaman hias merupakan langkah penting dalam mendukung pengelolaan ruang terbuka hijau dan penerapan konsep green campus di lingkungan perguruan tinggi. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis tanaman hias yang terdapat di Kampus Universitas Negeri Padang (UNP), mengetahui sebarannya, serta menganalisis fungsi ekologisnya. Penelitian dilaksanakan dengan menggunakan metode survei eksploratif melalui metode jelajah (cruise method). Data dikumpulkan melalui pengamatan langsung, dokumentasi, dan identifikasi tanaman berdasarkan karakter morfologi menggunakan literatur botani dan aplikasi identifikasi tanaman. Hasil penelitian menunjukkan bahwa di Kampus UNP ditemukan 12 spesies tanaman hias yang tergolong ke dalam 8 famili, dengan famili Araceae dan Asparagaceae sebagai famili yang paling dominan. Tanaman hias tersebar di berbagai area kampus seperti taman fakultas, halaman rektorat, jalur pedestrian, dan area parkir. Keberadaan tanaman hias tersebut tidak hanya berfungsi sebagai elemen estetika, tetapi juga memiliki peran ekologis penting seperti penyerap polutan udara, penghasil oksigen, pengatur suhu mikro, serta penunjang keanekaragaman hayati. Hasil inventarisasi ini diharapkan dapat menjadi data dasar dalam perencanaan dan pengelolaan lanskap hijau kampus yang berkelanjutan serta mendukung kegiatan pembelajaran dan konservasi lingkungan di Universitas Negeri Padang.
Co-Authors Abil Pratama Putra Anisa Syahrul Rahmi Annisa Khairani Azwir Anhar Bayo Alhusaeri Siregar Cleoraissa Insyira Dezi Handayani Echy Dania Putri Filza Yulina Ade Irdawati Linda Advinda Melani Domisofa Mina Almiah Rahaditha Dwi Hisana Zulia Putri Azzahra