Rungjindamai, Nattawut

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Preferred name
Rungjindamai, Nattawut
Alternative Name
Rungjindamai, N.
Main Affiliation
Email
nattawut.ru@kmitl.ac.th

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    Item type:Publication,
    Unravelling the hidden diversity of cave mycobiota in Thailand’s Satun Geopark
    (2023-12-01)
    Suetrong, Satinee
    ;
    Preedanon, Sita
    ;
    Kobmoo, Noppol
    ;
    Srihom, Charisa
    ;
    Somrithipol, Sayanh
    Karst caves are distinctive ecosystems that have limited nutrients, darkness, low to moderate temperatures, and high moisture levels, which allow for a diverse range of fungal communities to thrive. Despite their significance, little is understood about the fungi found in karst caves in Thailand. In 2019, we studied the cultured mycobiota from five substrate types (air, water, rock, soil/sediment, and organic debris) in two karst caves (Le Stegodon and Phu Pha Phet Caves) of the Satun UNESCO Global Geopark, southern Thailand. A cumulative count of 829 distinct fungal morphological types was identified, encompassing 319 fungal culturable were observed. Based on preliminary analyses of the internal transcribed spacer (ITS) sequence using BLAST searches, the most common phylum among the fungal morphotypes was Ascomycota, harboring 282 species in 91 genera, 93.4% of which were distributed in the classes Eurotiomycetes, Sordariomycetes, and Dothideomycetes. The most common fungal genera identified in the two karst caves were Aspergillus, Penicillium, Cladosporium, Talaromyces, Xylaria, and Trichoderma, with 45, 41, 24, 14, 14, and 6 species identified, respectively. Discovering fungi in Thai karst caves highlights the extensive fungal diversity in the Satun UNESCO Global Geopark, implying undiscovered species, and emphasizing the need for comprehensive investigations in other unexplored Thai karst caves.
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    Item type:Publication,
    Fabrication of mycelium (oyster mushroom)-based composites derived from spent coffee grounds with pineapple fibre reinforcement
    (2024-01-01)
    Kohphaisansombat, Chatchai
    ;
    Jongpipitaporn, Yanisa
    ;
    Laoratanakul, Pitak
    ;
    Tantipaibulvut, Sukon
    ;
    Euanorasetr, Jirayut
    Mycelium-based composites (MBCs) are eco-friendly materials made by combining mushroom mycelia with lignocellulosic biomass, offering diverse applications such as packaging and construction. The specific characteristics of MBCs can be significantly influenced by the choice of substrates and reinforcing materials during myco-fabrication. This study aims to improve MBCs sourced from Pleurotus ostreatus (oyster mushroom) using spent coffee grounds (SCGs) as the main substrate, combined with natural pineapple fibres (NPFs). NPFs are incorporated to SCGs in different proportions (10% to 30%) to explore their potential in improving the material properties of MBCs. The findings demonstrate that the mechanical properties of MBCs, as well as the physical and chemical properties, can be altered by manipulating the proportion of NPFs. The MBCs reinforced with 10% NPFs exhibit the highest density and compressive strength, while the MBC with 30% NPFs outperforms others in terms of bending strength, water absorption, swelling, and sound absorption. Furthermore, a fire resistance test affirms the non-combustible properties of the MBC made of SCGs and NPFs, thereby demonstrating its safety features. These MBCs, made from oyster mushroom, embody a hopeful substitute for product creation and production in relation to practical usage, eco-friendly manufacturing techniques, and recyclability throughout its lifecycle.