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http://dx.doi.org/10.9721/KJFST.2014.46.5.588

Optimization Study for the Production of 6-Shogaol-rich Ginger (Zingiber officinale Roscoe) under Conditions of Mild Pressure and High Temperature  

Park, Ho-Young (Food Resource Research Center, Korea Food Research Institute)
Ha, Sang Keun (Food Resource Research Center, Korea Food Research Institute)
Choi, Jiwon (Food Resource Research Center, Korea Food Research Institute)
Choi, Hee-Don (Food Resource Research Center, Korea Food Research Institute)
Kim, Yoonsook (Food Resource Research Center, Korea Food Research Institute)
Park, Yongkon (Food Resource Research Center, Korea Food Research Institute)
Publication Information
Korean Journal of Food Science and Technology / v.46, no.5, 2014 , pp. 588-592 More about this Journal
Abstract
Under optimized condition mild pressure in combination with specific temperature for heat treatment transform the 6-gingerol into 6-shogaol. The purpose of this study was to optimize the conditions used for heat treatment under pressure for increasing 6-shogaol content in ginger (Zingiber officinale Roscoe). A central composite experimental design was used to evaluate the effects of application temperature ($70-130^{\circ}C$) and temperature-holding time (95-265 min) on the transformation of 6-shogaol. The experimental values were shown to be in significantly good agreement with the predicted values (adjusted determination coefficient, $R^2{_{Adj}}=0.9857$). 6-Shogaol content increased as the application temperature and temperature-holding time increased. By analyzing the response surface plots, the optimum conditions of heat treatment (temperature and time) for increasing 6-shogaol content were found to be $127^{\circ}C$ and 109 min, respectively. Under these optimal conditions, the predicted 6-shogaol content was 3.98 mg/g dried ginger. The adequacy of the model equation for predicting the optimum response values was effectively verified by the validation data.
Keywords
Zingiber officinale Roscoe; 6-shogaol; 6-gingerol; response surface methodology;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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