Li Zuo's research while affiliated with Daegu University and other places

Publications (6)

Article
Water vapor adsorption kinetics of vacuum-dried jujube powder were investigated in temperature and relative humidity ranges of 10 to 40°C and 32 to 75%, respectively. Water vapor was initially adsorbed rapidly and then reached equilibrium condition slowly. Reaction rate constant for water vapor adsorption of vacuum-dried jujube powder increased wit...
Article
The moisture sorption isotherms of vacuum-dried edible green alga (Capsosiphon fulvescens) powders were determined at 25, 35, and 45°C and water activity (a w) in the range of 0.11~0.94. An inversion effect of temperature was found at high water activity (>0.75). Various mathematical models were fitted to the experimental data, and Brunauer, Emmett...
Article
The thin-layer vacuum drying behavior of Zizyphus jujuba Miller slices was experimentally investigated at the temperature of 50, 60, and 70 °C and the mathematical models were used to fit the thin-layer vacuum drying of Z. jujuba slices. The increase in drying air temperature resulted in a decrease in drying time. The drying rate was found to incre...
Article
Water vapor adsorption kinetics of 3 different types of chitosan-based films, i.e., control chitosan, chitosan/montmorillionite (Na-MMT), and chitosan/silver-zeolite (Ag-Ion) nanocomposite films, were investigated at temperature range of 10-40°C. In all the films, water vapor is initially adsorbed rapidly and then it comes slowly to reach equilibri...
Article
Water vapor sorption by sodium alginate-based films may result in swelling and conformational changes in the molecular structure and affecting the water vapor barrier properties. Sodium alginate film specimens were dried in a vacuum freeze dryer and their moisture content was determined by an air-oven method. The water vapor absorption was determin...
Article
Full-text available
The effects of active packaging on the surface stiffness, mass, volume, density and weight changes of fresh as well as stored eggplant were studied at 11 and 25°C for 10 days with active packaging material Type 1 and 2 and control. Mass, volume, and surface stiffness of eggplant decreased linearly throughout the storage period regardless of storage...

Citations

... While the KGM-KC-CO film increased from 0.1 to 0.60, 0.63, and 0.75. The initial moisture absorption rate of the film increased rapidly due to the filling capillaries on the surface of the film being filled (Seog, Zuo, Lee, & Rhiml, 2008) and then gradually flattens, and finally reached an equilibrium state (1000-1500 min). As shown in Table 4, the equilibrium moisture content of emulsion film less than the KGM-KC film. ...
... The CCE describes the a w of a food as a function of temperature for a given MC (Tadapaneni et al., 2017). This equation was initially developed to evaluate the impact of temperature on the a w of a pure system (Labuza & Altunakar, 2007), but has been used to model changes of a w in different dried food products or ingredients, including blueberry, pineapple, potato, and green algae, over a wide range of temperatures (Hossain et al., 2001;Lim et al., 1995;McMinn & Magee, 2003;Zuo et al., 2015). Recent studies show that by using the CCE, MSIs can be obtained for a larger range of temperatures and in less time than traditional methods Tadapaneni et al., 2017). ...
... Coefficient of determination (R 2 ), root mean square error (RMSE) and reduced chi-square (χ 2 ) measures were chosen as goodness-of-fit criteria to determine the model of best-fit for the Kurut samples. For the most suitable model, reduced χ 2 and RMSE values should be close to zero and R 2 should be close to one [24,[44][45][46]. The values of R 2 , RMSE and χ 2 were obtained from Equations (11)-(13), respectively: ...
... In fact, several reports indicate that the shift in V th of metal oxide TFTs has been attributed to the adsorption of moisture and oxygen at the semiconductor interface and trap-states under the influence of an electric field [38][39][40]. In this work, we used NaAlg electrolyte as a gate dielectric which is a hygroscopic polymer electrolyte [41] and permeable to the diffusion of oxygen and water molecules at a rate dependent on ambient conditions [42]. The adsorbed oxygen can seize an electron from the conduction band of the semiconducting In 2 O 3 layer and lead to formation of the depletion layer at the semiconductor/electrolyte interface, resulting in a change in the electrical properties of the semiconducting film [38]. ...