Takeungwongtrakul, Sirima

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Preferred name
Takeungwongtrakul, Sirima
Alternative Name
Takeungwongtrakul, S.
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Email
sirima.ta@kmitl.ac.th

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    Item type:Publication,
    Change in fatty acid profile, volatile compounds and FTIR spectra of samrong seed oil during storage
    (2020-01-01)
    Takeungwongtrakul, S.
    ;
    Karnjanapratum, S.
    ;
    Kaewthong, P.
    ;
    Nalinanon, S.
    Samrong (Sterculia foetida Linn.) is a wild plant. It is used in traditional medicine. The kernels of samrong seeds have been reported to contain a high amount of oil. The changes in fatty acid profile, volatile compounds, and fourier transform infrared (FTIR) spectra of oil from samrong seed kernel during storage (48 days) were investigated. With increasing storage time, the content of saturated fatty acid (SFA) and polyunsaturated fatty acid (PUFA) decreased. There was little change in fatty acid profile at the end of storage. As to FTIR spectra, a slight change in wave number from 3600 cm<sup>-1</sup> to 3200 cm<sup>-1</sup> and wave number 1711 cm<sup>-1</sup> was observed with increasing storage time. After storage, the results observed 12 volatile lipid oxidation compounds. However, slight changes in abundance of volatile compounds were found. Therefore, samrong seed kernel oil had good oxidative stability.
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    Item type:Publication,
    Extraction and antioxidant activities of broken Ganoderma lucidum spore
    (2021-11-01)
    Senphan, T.
    ;
    Takeungwongtrakul, S.
    ;
    Kaewthong, P.
    Soxhlet and microwave-assisted extraction (MAE) methods showed the highest extraction yield and total phenolic content of extract from broken spores of Ganoiderma lucidum (p<0.05). However, the extraction time of MAE method was shorter than the soxhlet extraction method. The broken spores of G. Lucidum were extracted using different solvent types with MAE method. Ethanol extraction rendered extract with the highest total phenolic content and ferric reducing antioxidant power (FRAP) value (p<0.05). For metal chelating activity, ethanol and hexane extracts were significantly high compared to other extracts of broken G. lucidum spores (p<0.05). Thus, the use of appropriated extraction method and solvent type rendered to extract with high total phenolic content and antioxidant activities.