Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Kinetic Models for Determining Vitamin C Content in Fresh Jujube and its Shelf LifePublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: 2012 Dallas, Texas, July 29 - August 1, 2012 121340828.(doi:10.13031/2013.41972)Authors: Cong Liu, Yaohua Hu, Ling Zhao, Chengcheng Wang, Kangquan Guo Keywords: vitamin C content; kinetic modeling; fresh jujube; shelf life Fresh jujube is rich in vitamin C, which is the important quality index and generally decreases with storage time. The aim of this study was to develop kinetic models for determining the vitamin C content, thus predicting the quality characteristics and shelf life of fresh jujubes. The quality changes of the jujubes stored room temperature storage were analyzed using-near infrared spectra. The significant spectra wave number was determined and the calibration model of vitamin C content was developed. The results showed that vitamin C content could be described by the zero-order kinetics model based on the regressions. In addition, the shelf life of the jujubes at room temperature was calculated according to the regression model. This kinetic model could be extended to predict vitamin C content of the jujubes stored under cold storage conditions. (Download PDF) (Export to EndNotes)
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