Koiwanit, Jarotwan

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Preferred name
Koiwanit, Jarotwan
Alternative Name
Koiwanit, J.
Main Affiliation
Email
jarotwan.ko@kmitl.ac.th

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    Item type:Publication,
    Business viability and carbon footprint of Thai-grown Nam Dok Mai mango powdered drink mix
    (2020-05-01)
    Koiwanit, Jarotwan
    ;
    Riensuwarn, Fonthong
    ;
    Palungpaiboon, Penpicha
    ;
    Pornchaloempong, Pimpen
    This research analyzes the business feasibility of freeze-dried powdered drink mix from Thai-grown Nam Dok Mai (NDM) mango for exportation to the United States. Since food processing generates large quantities of greenhouse gas emissions which contribute to global warming, the cradle-to-grave environmental impact of the mango powdered mix, specifically global warming potential (GWP), was determined using life cycle assessment. Based on the feasibility analysis, the mango powdered mix is thus positioned as a novelty for health-conscious and environmentally-concerned consumers because the product uses NDM mango fruits of premium quality as the main ingredient and carries a carbon footprint label on the packaging. A 50 g sachet of freeze-dried NDM mango powdered drink mix is priced at USD 7.80. The financial analysis showed that the mango drink mix possesses great business potential with high profitability. The environmental impact assessment identified the freeze drying process as the dominant contributor of GWP (15.40 kgCO<inf>2</inf>eq) due to high electricity consumption.
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    Item type:Publication,
    Carbon footprint assessment of home-stays in Thailand
    (2021-01-01)
    Koiwanit, Jarotwan
    ;
    Filimonau, Viachaslau
    Home-stays represent a popular category of tourist accommodation in South-East Asia but their carbon footprint has not been systematically assessed. This hampers an understanding of the energy consumption patterns of home-stays, impedes identification of the main carbon hotspots in home-stay operations and prevents a comparative analysis of the carbon performance of home-stays against other tourist accommodation categories. Using the method of screening Life Cycle Energy Analysis (LCEA), this study assessed the carbon footprint of a sample of home-stays in Thailand and undertook its comparative analysis against other categories of tourist accommodation, globally and in Thailand. The overall annual carbon footprint of home-stays was assessed as low (1.3 tonnes of CO<inf>2</inf>-eq. per home-stay on average) which was due to small size and limited guest amenities. The ‘per guest night’ carbon footprint of home-stays was comparable to that of budget hotels in Thailand (0.32 kg of CO<inf>2</inf>-eq. per home-stay on average) which was attributed to low occupancy driven by high demand seasonality.