Pilasombut, Komkhae

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Preferred name
Pilasombut, Komkhae
Alternative Name
Pilasombut, K.
Main Affiliation
Email
komkhae.pi@kmitl.ac.th

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    Item type:Publication,
    Effects of humectant and roasting on physicochemical and sensory properties of jerky made from spent hen meat
    (2016-01-01)
    Sorapukdee, Supaluk
    ;
    Uesakulrungrueng, Chanpen
    ;
    Pilasombut, Komkhae
    This study was carried out to develop jerky product utilizing spent hen meat. Manipulation of water activity (aw) of semi-dried meat with the addition of humectants (glycerol and sorbitol at the concentration of 0, 10, and 15%) and roasting process were applied to enhance quality of jerky product. After spent hen meat was ground, formulated, reformed and then dried in convection oven at 85oC for 2 h followed by 60oC for 1 h, all jerky samples showed values of aw ≤0.85 with total aerobic bacteria, yeast and mold and Staphylococcus aureus counts were reduced to undetectable levels. Moreover, the results showed that the 15% glycerol added jerky showed superior quality, indicated by the lowest aw, low protein aggregation as evaluated by sorption isotherm and the lowest shear value as compared to sorbitol added and control samples (p<0.05). Regardless effect of humectant, roasting could improve the quality of the jerky via enhanced sensory attributes by increasing color, appearance, flavor and overall acceptability scores (p<0.05). Therefore, spent hen meat could be used as a potential raw material for jerky in which soft product texture obtained by the addition of glycerol and intense flavor resulted from roasting process after drying, leading to sensory acceptance.
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    Item type:Publication,
    Effect of glycerol on improving quality of ready to eat Nham jerky, an innovation of Thai fermented meat product
    (2019-01-01)
    Pilasombut, K.
    ;
    Sorapukdee, S.
    ;
    Chetawan, T.
    ;
    Ngamyeesoon, N.
    Different concentrations of glycerol were investigated for improving qualities of ready to eat pork Nham jerky, an innovation of Thai fermented meat product. Three concentrations at 0 (control), 5 and 10% of glycerol were applied in pork Nham. Microbiologica and physicochemical qualities were recorded during fermentation period and after drying. The results showed that addition of 10% glycerol displayed higher pH particularly on the third day of fermentation (p<0.05), causing lower total acidity and purge loss in pork Nham during fermentation process. However, lactic acid bacteria population were not different in all treatments. Greater red color (a*) and lower lightness (L*) was observed in Nham with 5% and 10% glycerol adding (p<0.05). After 3 days of fermentation process, pork Nham was cooked and dehydrated until the internal temperature reached 72C and water activity (a <inf>w</inf> ) < 0.75. This product, ready to eat Nham jerky is a novel meat product as normally Nham consume as raw product. Percentage of drying yield, a <inf>w</inf> , shear force, color and sensory evaluation were compared among treatments. The results demonstrated that drying yield percentage of jerky Nham containing 5% and 10% glycerol was significantly higher than that of the control (p<0.05), while a <inf>w</inf> and shear force obtained the lower value than control (p<0.05). Sensory evaluation indicated that the highest score in overall acceptance was observed in Nham jerky containing 10% glycerol. In conclusion, adding glycerol in Nham jerky improved qualities and sensory acceptance.