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3BIO: Journal of Biological Science, Technology and Management
Published by Institut Teknologi Bandung
ISSN : -     EISSN : 26558777     DOI : http://dx.doi.org/10.5614%2F3bio.2020.2.1
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology Neuroscience
3Bio: Journal of Biological Science, Technology and Management is an interdisciplinary peer-reviewed journal in a wide aspect related to the field of life sciences and other related fields of study. The journal aims to promote scientific discourse and disseminate research on various branches and applications of bio-science, biotechnology and bio-based management. This journal invites original empirical research, literature reviews, theoretical or methodological contributions, or short communications on, but not limited to, the following topics: - Ecology and Biosystematics - Microbiology - Genetics and Molecular Biology - Animal Development and Physiology - Plant Development and Physiology - Entomology - Biomedical science - Biochemistry - Agronomy - Forestry - Bioengineering - Bioethics - Management of Biological Resources The journal also invites contributions from other associated disciplines. This journal is an open-access journal. Readers may read, download, copy, distribute, print, search, or link to the full texts of these articles without any charge, provided that readers acknowledge the Creative Commons attached to the articles. All submitted papers are reviewed by at least two referees before being accepted for publication, following a double-blind review process. This journal is delivered in an academic English and rigorously edited to provide a quality standard of a scientific journal. This journal is managed by the School of Life Sciences and Technology, Institut Teknologi Bandung, Indonesia.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 6 No. 1 (2024)" : 5 Documents clear
Relationship of Land Cover Heterogeneity and Insecticide Use with Arthropod Community Structure in Rice Agroecosystems Dewina, Restu Utari; Choesin, Devi N.
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.4

Abstract

Rice agroecosystems generally experience two kinds of environmental stresses, i.e., a decrease in the heterogeneity of land vegetation types due to the development of settlements in the border zone and the excessive use of insecticides. Both of these factors are known to affect the structure of the arthropod community in rice agroecosystems. However, studies related to the effects of these two stresses in shaping the structure of arthropod communities have not been widely carried out, especially during the planting period in the rainy season. This study aims toanalyze the relationship between land cover heterogeneity and insecticide use with the taxonomic and functional diversity of arthropods in thealpha, beta, and gamma dimensions. The study was conducted during the rainy season (October–March) on four rice agroecosystem sites in Bandung, West Java. Data was collected 30 and 50 days after planting (DAP). Arthropod samples were identified, and their taxonomic andfunctional diversity was calculated using the Shannon entropy formula (D). In general, land cover heterogeneity was positively correlated withthe value of arthropod taxonomic and functional diversity, especially in the early vegetative phase of rice plants (30 DAP). In con- trast,insecticides (g/m2) were negatively correlated with the value of arthropod diversity. The composition of arthropod species locally was relativelythe same except in the rice agroecosystem with the lowest land cover heterogeneity and the highest use of insecticides. Additionally, thecoefficient value of the insecticide variable has more influence on the value of arthropod diversity than the variable coefficient of land coverheterogeneity.
Artificial Neural Networks (ANN) to Model Microplastic Contents in Commercial Fish Species at Jakarta Bay Andriwibowo, Andriwibowo; Basukriadi, Adi; Nurdin, Erwin; Meylani, Vita; Hasanah, Nenti Rofiah; Shiddiq, Zulfi Sam; Mulyanah, Sitiawati
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.3

Abstract

Jakarta Bay is known as one of the marine ecosystems that have been contaminated by microplastics. Despite massive loads of microplasticcontamination, Jakarta Bay is also habitat to potential commercial fish species, including anchovy Stolephorus commersonnii and mackerel Rastrelliger kanagurta. While information on the microplastic contents and their determining factors is still limited, the goal of this study was touse artificial neural networks (ANN) as a novel and useful tool to model the determinants of microplastic content in fish in Jakarta Bay, using fish weight and length as proxies. Inside the stomachs of S. commersonnii and R. kanagurta, the order of microplastics from the highest to thelowest was fiber > film > fragment > pellet. Based on the RMSE values of 3.199 for S. commersonnii and 2.738 for R. kanagurta, the ANNmodel of fish’s weight + length ~ pellet was found to be the best fitted model to explain the correlation of fish weight and length with microplastic content in the stomach. The results indicate that ANN is suitable for solving large, complex problems in determining and projecting microplastic contents and provides better estimates that can be used to manage R. kanagurta and S. commersonnii along with microplastic contamination threats.
Optimizing the Wet Fermentation of Ateng Coffee (Arabica) with the Addition of Yeast R1-TKSU and LAB (Leuconostoc suionicum) Inoculum Sabatina, Grace; Astuti, Dea Indriani; Purwasena, Isty Adhitya
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.5

Abstract

Ateng coffee is an Arabica coffee that generally has a high selling value because of its better taste compared to other coffees. However, ateng coffee has poor post-harvest processing, resulting in low coffee quality and an impact on low coffee selling prices. In this study, optimization ofwet fermentation using yeast R1-TKSU and LAB (Leuconostoc suionicum) inoculums was used to improve the quality of ateng coffee. Treatment variations were fermentation with the addition of yeast, LAB, yeast : LAB 1:1, and there is also a control without the addition of inoculum. Sensory assessment showed that the best cupping score was the sample added by LAB with a total score of 86.5. The contents of malic acid, citric acid, lactic acid, sucrose, fructose, and glucose and ethanol which were analyzed by HPLC were found to be relatively stable ingreen coffee beans. Fermentation added inoculum affects the concentration of acetic acid. Amino acid analysed showed that overall the highest concentration of amino acids in green coffee beans was in the yeast : LAB 1:1 treatment. It can be concluded that controlled wet fermentation with the addition of yeast R1-TKSU and LAB (Leuconsotoc suionicum) inoculums can improve the quality of ateng coffee.  
Effectiveness of Tea Leaf (Camellia sinensis) Liquid Smoke as an Antiseptic Rohmah, Fitriani Nurhidayati; Alamsyah, Muhamad Thamrin; Nurjana, Siti; Fadhila, Feldha; Mayuri, Nindya Sekar; Rumidatul, Alfi
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.1

Abstract

Microbes are often the cause of infectious diseases; one method of prevention is to use antiseptics. Excessive use of antisep- tics can cause mild to severe side effects, so an alternative antiseptic is needed. Liquid smoke is an alternative raw material to produce antiseptics because its main component can be used as an inhibitor of microbial growth. This study aims to determine the effectiveness of tea-leaf liquid smoke as an antiseptic against microbial growth in vivo and in vitro. The method for producing liquid smoke via pyrolysis involves distilling grade 3 liquid smoke to generate grade 1 and grade 2 liquid smoke. The in vitro test uses a microbial growth inhibition test with grade 1 and 2 liquid smoke concentrations of 35%, 50%, and 75%. The microbes used were Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923, Candida albicans ATCC 10231, and Aspergillus flavus ATCC 9643. The in vivo test uses the swab test method on the palm of the hand. The results of the invitro test showed that the largest inhibition zone of tea leaf liquid smoke was obtained using grade 2 liquid smoke with a concentration of 75%.The results of the in vivo test showed that the effectiveness of tea leaf liquid smoke was 80% against bacteria and 85% against fungi. Based onthe results of the study, it can be concluded that tea leaf liquid smoke (Camellia sinensis) has potential as an antiseptic.
The Effect of Photoperiod on the Growth of Stevia rebaudiana in vitro Ramadhan, Muhammad Syah; Esyanti, Rizkita Rachmi; Iriawati, Iriawati; Rahmawati, Andira
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.2

Abstract

Stevia rebaudiana, the source of non-caloric natural sweeteners in the form of steviol glycosides, is a plant with a poor germi- nation rate.Therefore, micropropagation is a potential alternative method to propagate the plants in a large number. Light is an important factor for photosynthesis, so changing the intensity, quality, and duration of lighting can affect plant growth. Photo- period, the duration of light within 24hour period, has been known to influence the growth of S. rebaudiana grown in ex vitro conditions. The purpose of this study is to investigate the effect of various photoperiod (8, 12, and 16 hours) on the growth of S. rebaudiana in vitro. The node segments from ex vitro grown S. rebaudiana plants were cultured on solid MS media supple- mented with 1.13mg/L BA and 0.35 mg/L IAA. The shoots were rooted on solid half-strength MS media containing 0.1 mg/L IAA. For acclimatization, therooted shoots were grown on a mixture of fertile soil, burnt rice husk, cocopeat, and manure. The photoperiod treatment was applied from the beginning to the end of the experiment. Our results showed that the highest shoot length was found under 16 hour photoperiod. On the otherhand, root number and root length were not affected by photoperiod. Additionally, a 16 hour photoperiod increased shoot length (5.9 cm) compared to a 12-hour (3.48 cm) and 8-hour photoperiod (3.08 cm) after 5 weeks of acclimatization. A 16 hour photoperiod also producedhighest total leaf fresh weight (0.2 g). Howev- er, different photoperiods did not significantly affect leaf number and leaf area. In conclusion, 16 hour photoperiod is the best condition for S. rebaudiana micropropagation.

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