Papers by Keyword: Cooking

Abstract: An experimental program was carried out to investigate how to improve the characteristics of steel slag. Mainly the pretreatment methods of cooking and autoclave were used to detect such as free CaO content in the steel slag. The physical and chemical characteristics of steel slag were measured by X-ray diffraction (XRD) and fluorescence (XRF) analysis. The aim of improving the slag utilization is an important way to resolve large production problem, and then the research progress of steel slag utilization at home and abroad are recycled as raw material to be applied. By means of those ways to manage steel slag we have received the following conclusions: With the increase of cooking temperature the content of free CaO is gradually reduced. When temperature higher than 90oC the means could greatly reduce the free CaO content from about 7% wt. to less than 2.5% wt. in 3 h. By means of autoclave pressure upto 1.5MPa could greatly reduce the free CaO content from about 7% wt. to less than 3.2% wt. in 3 h. Through the study of the relevant of steel slag after pretreatment can effectively reduce the free CaO content in the steel slag, improving the stability of the steel slag is advantageous to the seven used in the construction field.

Abstract: Target For the lotus roots have caring characteristics on inventions of obesity and preventions of“Three Height”, which compared the test on the absorption function of lotus roots absorbing cholesterol and fatty acids after cooking ,provide the basis for reasonable edible method and develop the special adsorbent.Method The lotus roots were steamed, boiled, fried and microwaved,then tested and compared the changes of the adsorption of cholesterol and fatty acid, studied on the influence factors of adsorption, and got the processing method of high adsorbability.Results ① With the extension of adsorption time，the amount of cholesterol absorbed by all samples surges，which peaks after 1-1.5h. While as more lotus roots are used ,the amount of cholesterol absorbed declines, which compared absorption by different methods: microwaving ＞ poaching＞steaming＞frying. ② The lotus roots absorbed saturated fatty acids＞the lotus roots absorbed unsaturated fatty acids,which compared absorption by different methods: steaming＞poaching＞microwaving＞frying.Conclusion In order to treat disease of heart head blood-vessel and ensure to play a role in absorption and excretion on cholesterol and saturated fatty acids after eating ,Lotus roots are promoted to use cooking recipes of microwaving,steaming and poaching instead of frying .

Abstract: Non-enzymatic browning often occurs in the processing of chestnut kernel.Chemical components of chestnut kernel that related to the browning have been studied in this paper in order to control the browning. Results were showed as followed: after the non-enzymatic browning in processing,the protein content of the cooked chestnut kernel decreased by 30.34%, reduced sugar content decreases by 38.44% and ascorbic acid content decreases by 85.81%. Therefore, Maillard reaction and ascorbic acid oxidation were the main reactions resulting in the browning of cooked chestnut kernel. In addition, the influence of pH is significant while sucrose and sodium chlorine had no effects on the non-enzymatic browning. Solution with pH of 3,4,or 5 displayed rather good effects on inhibiting the browning of cooked chestnut kernel.

Abstract: FDS simulation software was used to establish the full size lampblack physics model of single wind pipe, using the orthogonal design method design of analog calculation conditions, research in the nozzle pressure, the droplet radius, nozzle, flow quantity and injection angle parameters under different conditions of water mist fire extinguishing effect. Based on a full-scale combustion and water mist fire extinguishing experiment, the water mist fire suppression was observed and test analysis etc, to better understand the flue water mist fire extinguishing feasibility, provides the theory basis for the design of efficient, reliable flue fire extinguishing system.

Abstract: In this paper, the effect of ultrasonic wave on sizing materials is analyzed to optimize sizing properties. To give an overall view on the advantages of ultrasonic wave treatment in mixing and cooking , a range of solid contents are taken into account. By comparing with the traditional method of mixing and cooking, the relationships between sizing materials’(s) gelatinization temperature and time ,viscosity and viscosity stability are discussed. Experimental results have demonstrated that a certain ultrasonic frequency ( 40kHz ) in mixing and cooking method can reduce the gelatinization temperature and time, lower the viscosity of sizing solutions and increase viscosity’s stability.

Abstract: The chemical composition of various parts of banana stem and leaf were analysed. The soda cooking and kraft cooking process of banana stem were optimized. The bleaching performance of the banana stem pulp was discussed. The results showed that the banana stem and leaf kraft pulp were good fiber material for pulping and papermaking. The brightness of banana stem bleached pulp can reach above 80%ISO through ClO₂ bleaching.

Abstract: In order to produce paper from agricultural residues such as wheat straw, it is necessary to delignify the wheat straw. Ethanol cooking is a novel process for the fractionation of biomass components. This study evaluated the effectiveness of sulphate acid catalyzed ethanol pulping on pulp yield, chemical composition of wheat straw, strength properties of the resulted paper sheet. The raw wheat straws, which were impregnated with 1.0% sulphate acid for about 12 h at room temperature, were subjected to ethanol cooking. The results showed that total pulp yield and kappa number decreases while screened pulp yield and brightness increases as the cooking severity increases. The optimal conditions of pulping were determined. Under the optimal condition, the screened pulp yield was up to 55.4%, with the kappa number of 66.35, brightness of 16.1 SBD, and the maximum paper sheet strength.