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All Journal Biology, Medicine, & Natural Product Chemistry Biopendix: Jurnal Biologi, Pendidikan dan Terapan Jurnal Pembelajaran dan Biologi Nukleus Konservasi Hayati Jurnal Agrotropika Inornatus: Biology Education Journal EduNaturalia: Jurnal Biologi dan Kependidikan Biologi Organisms: Journal of Biosciences Indonesian Journal of Environment and Sustainability Issues
Ovi Prasetya Winandari, Ovi Prasetya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Stomatal Density of Jackfruit (Artocarpus heterophyllus Lamk.) Leaves as a Bioindicator of Urban Air Quality in Bandar Lampung Rahmawati, Ayu; Nahari, Fadhilah Savana Nurun; Winandari, Ovi Prasetya
Indonesian Journal of Environment and Sustainability Issues Vol. 1 No. 2 (2024): December 2024 | Indonesian Journal of Environment and Sustainability Issues
Publisher : WISE Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70211/ijesi.v1i2.173

Abstract

Urban air pollution is a growing environmental concern, particularly in rapidly developing cities where vehicular emissions contribute significantly to deteriorating air quality. This study investigates the correlation between stomatal density in jackfruit (Artocarpus heterophyllus Lamk.) leaves and air quality in Bandar Lampung, focusing on two high-traffic urban locations: Sultan Agung Street and Pangeran Emir M Noer Street. Using a quantitative approach, leaf samples were collected through purposive sampling and analyzed for stomatal density using light microscopy (400× magnification). Concurrently, air quality was measured by assessing carbon monoxide (CO), nitrogen oxides (NOx), and particulate matter (PM10 and PM2.5) concentrations, which were compared against National Ambient Air Quality Standards (PP No. 41 of 1999). The results indicate a positive correlation between traffic intensity and stomatal density, suggesting that jackfruit trees increase stomatal density as an adaptive response to vehicular pollution. However, while enhanced stomatal density may improve CO₂ uptake for photosynthesis, excessive stomatal opening could lead to higher pollutant absorption, necessitating stomatal closure mechanisms during peak pollution periods. The findings confirm that jackfruit trees can serve as effective bioindicators for urban air pollution monitoring, given their physiological adaptability and widespread distribution in tropical urban settings. This research underscores the potential of plant-based bioindicators in sustainable air quality assessment and urban environmental management strategies.
Utilization Of Composted Organic Waste As Growing Media For Pakcoy (Brassica Rapa Var. Chinensis) Efforts To Reduce Agricultural Environmental Impact Anisya, Shinta; Winandari, Ovi Prasetya; Khusniyah, Lailatul; Pradana, Satria Adi
Indonesian Journal of Environment and Sustainability Issues Vol. 2 No. 1 (2025): June 2025 | Indonesian Journal of Environment and Sustainability Issues
Publisher : WISE Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70211/ijesi.v2i1.174

Abstract

This study aims to analyse organic waste compost as an effective growing medium and evaluate its effect on the growth of pakcoy (Brassica rapa var. Chinensis) plants. In this study, we focused on analysing the content of macro and micro nutrients required by pakcoy plants, such as C, N, P, K, and Ca. We used a Randomised Group Design (RAK) with two factors: growing media (sawdust, cocopeat, husk charcoal) and organic waste compost concentration. The observation parameters include the development of pakcoy plants, namely plant height, number of leaves, and stalks of pakcoy that have been planted in organic waste compost media.The results showed that organic waste compost with a mixture of sawdust and the addition of EM4 has a nutrient content that is in accordance with the Indonesian National Standard (SNI). In addition, the organic waste compost had a more significant effect on pakcoy growth. Thus, this study shows the potential of using organic waste compost as an alternative to chemical fertilisers in vegetable cultivation. These results can help improve soil fertility and yield of vegetable crops, as well as contribute to the development of sustainable agriculture that is more environmentally friendly.
Alterations in the sucrose content and texture of Carica papaya var. California L. and Musa paradisiaca var. formantipyca L. as ripen Saputri, Dwijowati Asih; Ulmillah, Aulia; Winandari, Ovi Prasetya; Handayani, Fitri
Inornatus: Biology Education Journal Vol. 4 No. 2 (2024): Inornatus: Biology Education Journal
Publisher : Univeritas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/inornatus.v4i2.682

Abstract

Changes in texture and sucrose content in California papaya and kepok bananas after harvest due to metabolic processes can reduce the quality of the fruit. This research investigated the changes in sucrose content and texture during the maturation process of California papayas and kepok bananas. The observed parameters included physical properties, such as texture variations and sucrose levels in the fruit. The research followed a qualitative approach. The research results are described descriptively. This study showed a change in the texture of the kepok banana and California papaya in the ripening process. Changes in the texture of kepok bananas decreased from 3.66 kg/cm on day 2 to day 12 after harvesting from 3.66 kg/cm to 0.56 kg/cm. California papayas from 3.63 to 1.36 kg/cm2. California papayas from 3.63 to 1.36 kg/cm2. The highest sucrose content in the ripening process occurred in kepok bananas and California papayas, respectively, at 0.45? Brix on day 12 and 11.38? Brix on day 10. 
Co-Authors Ardiana, Nice Aulia Novitasari Aulia Ulmillah AYU RAHMAWATI Carolin, Lili Anisa Dwijowati Asih Saputri Fatimah, Eis Fitri Handayani Irbah, Istiana Joevira, Ayu Ela Khusniyah, Lailatul Marlina Kamelia Meirina, Meirina Nahari, Fadhilah Savana Nurun Nurhaida Widiani Oktaria, Oktaria Pradana, Satria Adi Pratiwi, Retno Rani Yosilia Rizki, Erika Puspita Shinta Anisya Supriyadi Supriyadi