Teerarak, Montinee

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Preferred name
Teerarak, Montinee
Alternative Name
Teerarak, M.
Main Affiliation
Email
montinee.te@kmitl.ac.th

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    Item type:Publication,
    Effect of peppermint essential oil fumigation on seed quality of green soybean cultivar KPS292 after storage
    (2023-02-01)
    Yonsawad, N.
    ;
    Teerarak, M.
    Seed storage conditions can determine germination characteristics and vigor potential of seeds. The present study aimed to test the effect of different storage conditions on seed germination in green soybean (Glycine max [L.] Merr.) 'KPS292'. Five methods of green soybean seed storage were examined: (1) untreated seeds were kept in refrigerator at 4°C (controlled conditions), (2) seeds fumigated with peppermint essential oil were kept in vacuum packed bags or (3) plastic boxes at room temperature, and (4) seeds fumigated with distilled water were kept in vacuum packed bags or (5) plastic boxes at room temperature. Results indicate that seeds stored at 4°C for six months exhibited the highest seed germination rates. No significant difference in germination rates of fumigation with the peppermint essential oil and kept in vacuum packed bag and fumigation with the peppermint essential oil and stored in plastic box was found compared to seed storage at 4°C. In addition, seed storage at 4°C showed the lowest electrolyte leakage from seeds, which did not differ from seeds fumigated with the peppermint essential oil that were kept in a vacuum-packed bag. For 12-month seed storage, all seed storage methods showed seed germination rates of <50%. Growth characteristics and yield performances were also determined under field conditions. All seed storage methods had no significant effects on plant height. Seed storage methods at 4°C, fumigation with the peppermint essential oil and kept in vacuum packed bag, and fumigation with the peppermint essential oil and stored in plastic box showed similar effects on plant height, plant biomass, node number per plant, pod number per plant, and seed yield per plant. On the other hand, the yield of seeds stored in plastic boxes was found to have decreased.
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    Retarding Changes of Postharvest Qualities of Sweet Basil (Ocimum basilicum Linn.) by Vapor-Phase Vinegar
    (2017-10-02)
    Changsawake, Kanokporn
    ;
    Krusong, Warawut
    ;
    Laosinwattana, Chamroon
    ;
    Teerarak, Montinee
    Fresh leaves of sweet basil (Ocimum basilicum) were exposed to ambient upland rice vinegar (URV) vapor containing 4% acetic acid (AA) for 0, 2, 4, 6, 8, or 10 min, before packing in polyethylene bags and storing at 12°C. This extended the postharvest storage life of sweet basil by retaining greenness, freshness, and antioxidants. The gas chromatography-mass spectrometry (GC-MS) results showed a number of other volatiles in URV vapor, including ethyl acetate, propane, pentanal, and acetic acid.