Article Per Year (5 Year)
p-Index From 2021 - 2026
2.386
P-Index
This Author published in this journals
All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Sains & Teknologi Lingkungan Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Makara Journal of Science Prosiding Seminar Nasional Biologi BIODIVERS - BIOTROP Scientific Magazine Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Bioteknologi & Biosains Indonesia
ROSITA, Risa
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Social Sciences

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
The Effect of Storage Period and Mixing Techniques on the Chemical Content of Environmentally Friendly BIOPOS Organic Compost at SEAMEO BIOTROP Rosita, Risa; Imran, Zulhamsyah; Fitra, Allegra Aura; Dewi, Amelia Cantrika; Bayuaji, David Yudhoyono; Dewantara Eris, Deden; Widayanti, Sri; Ayu Astari, Risya; Purnajaya, Agus
BIODIVERS - BIOTROP Science Magazine Vol. 3 No. 1 (2024): BIODIVERS (BIOTROP Science Magazine)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2024.3.1.2227

Abstract

SEAMEO BIOTROP produces daily waste from oyster mushroom baglog (Pleurotus ostreatus), dry organic waste that contains little water, such as dry leaves, grass straw, and citronella distilled waste. Managing oyster mushroom baglog waste, leaf waste, grass straw, and citronella distilled waste independently at SEAMEO BIOTROP as organic compost BIOPOS (BIOTROP Compost) is an environmentally friendly practice and can provide benefits both economically and ecologically. Apart from being carried out to protect biodiversity from decline, this study can also keep the soil system healthy and sustainable. The aim of this research is to: (1) make BIOPOS organic compost through the use of oyster mushroom baglog, leaf waste, leaf straw, and citronella distilled waste; (2) determine the influence of various types of BIOPOS organic compost (KT1, KT2, KT3) on the chemical content of compost. Research stages include: (1) creating BIOPOS organic compost, (2) measuring the chemical content of BIOPOS organic compost, and (3) measuring the effectiveness of BIOPOS. During the storage period of 30 dam up to 180 dam, BIOPOS organic compost which still contains N (0,54%), P (36,8%), K (7,23%) and complies with SNI 19-7030-2004 quality standards is KT3. In measuring C-Organic value, BIOPOS code KT2 with a storage period of 30 dam gained C-Organic amount of 28,36%, satisfying quality standards. The application of BIOPOS KT1, KT2, and KT3 with a pH range of 8,2- 8,3 high pH can be used to correct problems that often occur in acidic soils and is not effective when applied to sub-optimal alkaline soils because it will cause soil pH to increase sharply. Key words: BIOPOS, citronella distilled waste, grass straw, leaf waste, oyster mushroom baglog waste
Spore Production and Inoculum Formulation of Claroideoglomus Etunicatum and its Application in Maize (Zea Mays) Rosita, Risa; Dewantara Eris, Deden; Aslan, Aslan; Imran, Zulhamsyah
BIODIVERS - BIOTROP Science Magazine Vol. 3 No. 2 (2024): BIODIVERS Volume 3 No. 2 (2024)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2024.3.2.2297

Abstract

Recently, the demand for AMF (Arbuscular Mycorrhiza Fungi) fertilizer for agriculture, plantation, and forestry in Indonesia has been very high. Meanwhile, the unavailability of an applicable AMF inoculum that's easy to use and inexpensive is one of the constraints on AMF application as a fertilizer in the field. It indicates that the best formulated inoculum must be found. The study aimed to produce AMF spores using conventional and hydroponic system, formulate the best AMF inoculum, and measure the growth response in maize (Zea mays) after applying the formulated inoculum. In the formulation stage, the study was designed using a Completely Randomized Design (CRD) with 1 factor. The factor was the type of formulation. Data were analyzed using SAS software version 9 and further tested using Duncan's Multiple Range Test (DMRT) at 5% alpha (α) level. The results reported that the conventional pot culture technique (CVNE2) treatment that had been inoculated by Claroideoglomus etunicatum produced the highest spore density amount of 350 ± 6.97 per 10 g of zeolites (P<0.05). On the other hand, the hydroponic NFT (NFTE2) treatment that had been inoculated by C. etunicatum obtained the highest AMF percent colonization amount of 98% ± 2.66% (P<0.05). Analysis of variance in the formulation stage showed TZ60F1 treatment had a significant effect (P<0.05) in increasing plant height, the number of leaves, and dry weight of Zea mays, respectively 120 cm ± 1.7 cm; 15 ± 0.84; 26.3 g ± 2.46 g in 3 months after application.
Degradation and Digestion of Polypropylene, Polyethylene, and Styrofoam by Tenebrio molitor L. (Coleoptera, Tenebrionoidae) Larvae Subchan, Wachju; Rohman, Abdu; Prihatin, Jekti; Salma, Fahriyah Ulimatus; Halimah, Rohima Novianti; Jannah, Alifia Wardhatul; Rosita, Risa
Makara Journal of Science Vol. 28, No. 4
Publisher : UI Scholars Hub

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

Abstract

The increasing use of disposable plastic bags is affecting environmental problems because it requires thousands of years to degrade naturally. To overcome these problems, mealworms (larvae of Tenebrio molitor L.) become an alter-native solution. They can be considered as biodegradation agents of plastic because of the presence of symbiont bacte-ria in its gut that secretes plastic-depolymerizing enzymes. Therefore, this study aimed to compare the degradation and digestion ability of T. molitor in consuming various plastic types and thickness. Two designs have also been used: first, comparing the degradation and digestion of various plastic types, and second, comparing the degradation and diges-tion of various plastic bag thicknesses. The first design consists of three types of treatments, and the control group comprised three repetitions. The control group was fed with concentrate; treatment group 1 (P1), PP plastic bags; treat-ment group 2 (P2), high-density polyethylene (HDPE) plastic bags; and treatment group 3 (P3), styrofoam. The second design encompasses two treatment types, and the control group composed of repetitions. The control group was fed with concentrate; treatment group 1 (P1), HDPE plastic bags with a thickness 0.01 mm; and treatment group 2 (P2), HDPE plastic bags with a thickness of 0.02 mm. The result indicates that in the first design, the highest degradation and digestion occurred in treatment 3 (styrofoam) with an average of 0.001267 and 0.0063 fragment/individual, respective-ly. The second design the highest degradation occurred at P1 of 0.000009609 mg/day/individual. The highest digestion occurred at P1 with a total average of 0.004568 fragment/individual.
The Effect of Mycorrhiza Application and Phosphorus Addition on AMF Spores Density and Pueraria javanica Growth Rosita, Risa; Suryadi, Jennifer Claudia; Eris, Deden Dewantara
BIODIVERS - BIOTROP Science Magazine Vol. 4 No. 1 (2025): Vol. 4 No. 1 (2025): BIODIVERS Volume 4 No. 1 (2025)
Publisher : SEAMEO BIOTROP

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

Abstract

One of the suitable host plants for AMF (Arbuscular Mycorrhizal Fungi) is Pueraria javanica. Several factors that can affect the growth of P. javanica are the availability of nutrients and the activity of potential soil microbes, such as AMF. Applying potential soil microbes (AMF) to plants can increase plant growth, chlorophyll levels, and enzyme activity, and even improve soil quality. The ability of AMF to increase plant nutrient absorption causes plants with AMF tend to have optimum growth. The study aimed to understand the effect of AMF application and phosphorus (P) nutrients addition on AMF spore density and P. javanica growth. The experiment used a completely randomized design with one factor (formulation). Results of the study proved that phosphorus (P) addition was able to reduce AMF spore densities (Glomus etunicatum and Glomus mosseae) 3 weeks after application (WAA). The availability of P in a fairly high amount around the root area caused plants to reduce their dependence on AMF, which resulted in a decrease in AMF colonization and AMF spore densities. On the other hand, adding P nutrients proved to increase growth parameters (plant height and number of leaves) of P. javanica because AMF helped the absorption of P and received carbon from plants in return. Treatment P6 (G. etunicatum 10 g + without phosphorus) had the highest spore density value (400.33/10 g planting media), and treatment P9 (G. mosseae 10 g + phosphorus 10 ppm) showed the highest increase in plant height of 13.333 (P < 0.05) 3 weeks after application. Meanwhile, the maximum increase in the number of leaves occurred in plants that received 10 g of G. mosseae and 10 ppm of P every two days for three weeks. Studying AMF spore density can significantly improve plant growth, agronomic efficiency, and agricultural sustainability.
THE DIVERSITY AND CHARACTERISATION OF CELLULOLYTIC BACTERIA ISOLATED FROM VARIOUS CONDITIONS OF EMPTY FRUIT BUNCHES IN OIL PALM PLANTATION Agam Pamungkas, Edo; Madusari, Sylvia; Putri, Halida Adistya; Rosita, Risa
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 1 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.10238

Abstract

The utilisation of oil palm empty fruit bunches (EFB) remains underexplored. Harnessing cellulolytic microorganisms for the production of cellulase enzymes offers sustainable approach to addressing waste management challenges while aligning with the principles of the Sustainable Development Goals (SDGs) and address waste management challenges. This study aims to isolate, characterize, identify, and test the potential cellulase activity of cellulolytic bacteria from EFB taken from three different locations: PO code from organic fertilizer plantations (POU1, POU2, POU3), PL code from oil palm plantations (PLU1, PLU2, PLU3), and PK code from Sulung mills (PKU1, PKU2, PKU3). This study used three isolated cultures in its testing. The research process includes sample preparation, bacterial isolation, gram staining, catalase test, hypersensitivity test, DNA amplification, bioinformatics analysis and cellulase activity analysis. The results of the bacterial isolation obtained 28 colonies. The results of the characterisation were all 3 non-pathogenic bacterial isolates, with a positive catalase test. The result of staining Gram-negative with bacilli-shaped bacteria. The amplification results obtained a band size of 1500 bp. The results of the identification obtained the species Aeromonas enteropelogenes, Nitrosomonas stercoris, and Methylobacillus caricis. The results of phylogenetic analysis showed low homology. Cellulase activity of six positive isolates with medium ability isolates code POU3 (1.3), PLU2 (1.0), PLU3 (1.0); low isolates POU1 (0.2), POU2 (0.2), PLU (0.8) and 3 negative isolates no enzyme activity PKU1 (-1), PKU2 (-1), and PKU3 (-1).
Characterization of Phosphate Solubilizing Bacteria from Three Types of Soil Rhizosphere and Their Potency to Increase Growth of Corn Plants (Zea mays) Rosita, Risa; Apriana, Edwin; Hazra, Fahrizal; Eris, Deden Dewantara
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 10 No. 1 (2023)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v10i1.288

Abstract

Pemberian dosis pupuk P (fosfat) yang tinggi tidak sejalan dengan ketersediaan P dalam tanah karena sebagian besar P terikat oleh Al, Fe dan Ca sehingga tidak tersedia bagi tanaman. Pemanfaatan mikrob pelarut P merupakan salah satu upaya dalam meningkatkan ketersediaan P yang dapat diserap oleh tanaman. Tujuan dari penelitian ini adalah untuk mengisolasi, mengkarakterisasi dan menguji potensi mikroba pelarut P yang diisolasi dari tiga jenis rizosfer. Penelitian menggunakan Rancangan Acak Lengkap (RAL) satu faktorial. Serangkaian karakterisasi melalui uji hipersensitivitas, uji pewarnaan gram, uji katalase, uji oksidase, uji kebutuhan oksigen, uji motilitas, kemampuan menggunakan berbagai sumber karbon (glukosa, laktosa, dan sukrosa), uji metil merah, dan uji pertumbuhan pada berbagai pH . Hasil penelitian menunjukkan sebanyak 5 bakteri pelarut P terpilih (Ca-Al-7, Ca-Al-8, Ca-Al-4, Ca-NF-1, dan Ca-NF-3) bukan patogen tanaman, dengan nilai kelarutan fosfat berturut-turut 1,7; 2,9; 2,5; 3,1; 3,2 berpengaruh nyata terhadap parameter tinggi tanaman, jumlah daun, biomassa segar dan kering tanaman Zea mays setelah inokulasi 4 minggu (p < 0,05).
Keanekaragaman Fungi Mikoriza Arbuskula (FMA) dari Rizosfer Tanaman Hias: Karakterisasi Morfologi dan Seleksi Hazra, Fahrizal; Rosita, Risa; Fadhilla Br Siregar, Rizky Tri
COMSERVA : Jurnal Penelitian dan Pengabdian Masyarakat Vol. 4 No. 11 (2025): COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/comserva.v4i11.3008

Abstract

Salah satu tantangan dalam budidaya tanaman hias adalah optimalisasi pertumbuhan tanpa ketergantungan berlebihan pada pupuk dan pestisida kimia. Oleh karena itu, pemanfaatan FMA sebagai biofertilizer alami dapat menjadi solusi yang berkelanjutan untuk meningkatkan kualitas dan ketahanan tanaman hias. Eksplorasi keanekaragaman FMA dari rhizosfer tanaman hias menjadi penting untuk mengidentifikasi spesies-spesies yang berpotensi dalam meningkatkan pertumbuhan tanaman secara alami. Karakterisasi morfologi spora FMA dapat memberikan informasi mengenai spesies yang ada dan potensinya dalam mendukung ekosistem tanah. Penelitian ini bertujuan untuk mengeksplorasi dan mengidentifikasi morfologi FMA yang diisolasi dari rhizosfer berbagai jenis tanaman hias, guna memberikan wawasan lebih lanjut mengenai keanekaragaman dan peran ekologi fungi ini. Tahapan penelitian meliputi koleksi tanaman hias, sampling tanah, isolasi Fungi Mikoriza Arbuskula (FMA), pengelompokkan dan identifikasi morfologi spora Fungi Mikoriza Arbuskula (FMA), dan seleksi FMA pada kultur spora. Hasil penelitian menyatakan bahwa Kepadatan spora tanaman Soka (Ixora coccineal L.) memiliki kepadatan spora yang paling tinggi senilai 36 spora. Hal ini diketahui bahwa tanaman soka memiliki kondisi akar yang menguntungkan untuk kolonisasi mikoriza. Hasil identifikasi total spora Glomus sp. lebih banyak di temukan karena memiliki tingkat adaptasi yang lebih tinggi terhadap lingkungan dibandingkan genus lainnya. diperoleh data bahwa spora FMA pada kode D1, D2, D5, D6, D7, dan D8 berhasil mengkolonisasi perakaran tanaman inang sorghum yang ditandai dengan terbentuknya hifa. Kolonisasi FMA dimulai ketika spora berkecambah dan menghasilkan hifa eksternal yang tumbuh menuju akar tanaman inang. Glomus sp. merupakan jenis FMA yang memiliki kolonisasi FMA yang tinggi karena memiliki kemampuan kolonisasi yang cepat dibandingkan jenis FMA lain. Pada kultur spora kode D3 dan D4, tidak terjadi kolonisasi dan tanaman menjadi mati. Hal ini disebabkan oleh spora yang kurang adaptif. Akibatnya, tanaman sorgum tidak mendapat manfaat dari simbiosis mikoriza.
Impact of Tin Mining on Soil Physio-Chemical Properties in Bangka, Indonesia Wulandari, Dewi; Agus, Cahyono; Rosita, Risa; Mansur, Irdika; Fikri Maulana, Ahdiar
Jurnal Sains dan Teknologi Lingkungan Vol. 14 No. 2 (2022): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol14.iss2.art2

Abstract

Surface mining, including tin mining, is the most common mining practice in Indonesia. The existence of mining ore or minerals close to the surface soil is the reason for carrying out this mining method. The process of mining surface resulted in the change of land landscape, which may cause soil erosion and even flood. It has caused various ecological and environmental problems, including soil degradation. This study describes soil physio-chemical properties impacted by surface tin mining in Bangka, Indonesia. Soils were collected from three different land use in natural forest, agroforestry, and post tin mining area in Bangka Regency, Province of Bangka Belitung Island. Five-spot soils were sampled from each site. Each site had three replication of the sampling area. The plot size for each site is about 200-500 m2. Soil texture, pH, total N, available P, exchangeable K, organic carbon, C/N ratio, CEC, Al3+, and H+ were analyzed. The results showed that mining decreased organic carbon, total N, available P, exchangeable K, and CEC. Mining changed the soil texture to be dominated by quartz sand. These results indicate that mining significantly deleterious soil fertility, therefore, potential as a limiting factor for plant growth, which could be a hamper for restoration efforts of post tin mining areas. Keywords: tin mining, restoration, soil physiochemical properties, soil degradation
Effectivity of Signal Grass (Brachiaria decumbens) Enrich with Microorganism to Absorb Heavy Metals (Pb) Rosita, Risa
BIODIVERS - BIOTROP Science Magazine Vol. 1 No. 2 (2022): BIODIVERS (BIOTROP Science Magazine) - Save Biodiversity for Sustainable Well-b
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2022.1.2.1978

Abstract

-
Hand Soap Based on Moringa Leaf to Reinforce Agro-Eco-Edu-Tourism in Generating Creative Younger Generation Sugiyanto, Wardani; Yulvianah; Rosita, Risa; Darwati, Aan
BIODIVERS - BIOTROP Science Magazine Vol. 2 No. 1 (2023): BIODIVERS (BIOTROP Science Magazine) : Agro-Eco-Edu-Tourism in Managing Tropica
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2023.2.1.1995

Abstract

Teaching Factory is a learning model that can be adopted in the Agro-Eco-Edu-Tourism (AEET) program. The learning model products in Teaching Factory are soap and hand sanitizer. The study's results reported that hand washing soap with the addition of Moringa leaf extract could inhibit the growth of Staphylococcus aureus and Escherichia coli bacteria that cause diarrheal disease. Diarrheal disease is still a public health problem in developing countries such as Indonesia because of its high morbidity and mortality. Diarrhea occurs due to the spreading S. aureus and E. coli bacteria, most often transmitted from hand to hand. Washing hands using soap and hand sanitizer is an activity that aims to remove dirt on hands.
Co-Authors Agam Pamungkas, Edo Apriana, Edwin Aslan Aslan, Aslan Ayu Astari, Risya Bayuaji, David Yudhoyono Cahyono Agus Darwati, Aan Dewantara Eris, Deden Dewi Suryani Dewi Wulandari Dewi, Amelia Cantrika Eris, Deden Dewantara Fadhilla Br Siregar, Rizky Tri Fahrizal Hazra Fikri Maulana, Ahdiar Fitra, Allegra Aura Halimah, Rohima Novianti Irdika Mansur Jannah, Alifia Wardhatul Jekti Prihatin Purnajaya, Agus Putri, Halida Adistya Rohman, Abdu Salma, Fahriyah Ulimatus Sarah Asih Faulina, Sarah Asih Sri Widayanti Sugiyanto, Wardani Suryadi, Jennifer Claudia Sylvia Madusari Tamimi, Thariq Final Wachju Subchan Yulvianah Zulhamsyah Imran