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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences
Huyop, Fahrul Zaman
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Agriculture, Biological Sciences & Forestry Environmental Science

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Post-Covid-19 Pandemic Awareness on The Use of Micro- and Nano Plastic and Efforts into Their Degradation - A Mini Review Wiratno, Ekwan Nofa; Rozdhl, Amira Azawani Mohd; Hanafi, Nafizatun Eliana Ali; Redzuan, Rabiatul Alia; Huyop, Fahrul Zaman
Journal of Tropical Life Science Vol 11, No 2 (2021)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.11.02.12

Abstract

Micro- and nanoplastic pollution possess a global threat and cause a future problem and needs greater attention. Its pollution is also exacerbated recently by the use of abundance of plastic polymers in efforts to prevent and handle COVID-19 pandemic at the global scale. This review covered the major concerns about the characteristic, effect and bioremediation of micro- and nanoplastics of post COVID-19. Based on size, microplastic is described as debris particles smaller than 5 mm whereas, nanoplastic is referred to any particles smaller than 100 nm. Micro- and nanoplastic are easily ingested by many aquatic organisms at different trophic levels. This ingestion caused negative health impacts to all living organisms. Microplastic direct effect on living organism for example mechanical injury, false satiation, declined growth, promoted immune response, energy loss, disrupted enzyme activity and production, decreased fecundity, production of oxidative stress, and mortality. Nanoplastic could enter the circulatory system and caused negative effects on the cellular and molecular levels. Bioremediation of microplastic by magnoliophyta, bacteria, fungus and algae on several polymer forms was previously reported, however, not many on nanoplastic biodegradation. Therefore, current review will focus on the characteristics, effect and bioremediation effort of micro- and nanoplastic.
Integrated Bacterial and Fungal Microbiome Profiling of Green Honey from Banggi Island, Sabah Ullah, Saeed; Huyop, Fahrul Zaman
Journal of Tropical Life Science Vol. 15 No. 3
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.15.03.15

Abstract

Green honey from Banggi Island, Sabah, is a premium product recognized for its distinctive color, yet its microbial composition remains poorly characterized. This study employed amplicon sequencing to investigate the microbial diversity of green honey, targeting the bacterial 16S rRNA V3 region and the fungal internal transcribed spacer one (ITS1) region. A total of 286 amplicon sequence variants (ASVs) were identified, comprising 270 bacterial and 16 fungal/yeast ASVs across 12 bacterial and 2 fungal phyla. The bacterial community was dominated by members of the phylum Pseudomonadota, with representative genera including Comamonas, Acidovorax, and Bacillus. Fungal profiling revealed a strong dominance of Zygosaccharomyces rouxii, accounting for over 98% of fungal reads. Overall, fungal sequencing reads substantially exceeded bacterial reads, indicating a fungal-enriched microbial profile in this honey sample. These findings provide the first integrated characterization of both bacterial and fungal communities in Banggi Island green honey. While the results highlight distinct microbial patterns potentially shaped by local environmental and floral factors, functional, safety, and bioactivity implications remain exploratory and warrant further investigation using complementary approaches.
Co-Authors ekwan nofa wiratno Hanafi, Nafizatun Eliana Ali Redzuan, Rabiatul Alia Rozdhl, Amira Azawani Mohd Ullah, Saeed