Determination Of Five Phthalate Residues In White Spirit By Gas Chromatography,
2016
College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
Determination Of Five Phthalate Residues In White Spirit By Gas Chromatography, Cao Yong, Hua Xiaoman, Zheng Mingzhu, Wang Nan, Liu Jingsheng
Food and Machinery
A capillary gas chromatographic method with flame ionization detector (GC-FID) for the detection of five phthalate esters dimethyl phthalate(DMP), di-ethyl phthalate(DEP), di-butyl phthalate(DBP), di-(2-ethylhexyl) phthalate(DEHP) and dioctyl phthalate(DnOP)
Study On Flow Characteristics In Stirred Vessel With Double Impellers With Cfd,
2016
College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 211816, China
Study On Flow Characteristics In Stirred Vessel With Double Impellers With Cfd, Fan Liming, Li Qingsheng
Food and Machinery
Based on the multiple reference frame method and Realizable k-ε model, the whole flow field in a stirred tank with double CBY impellers was numerically simulated using fluent software. The simulation test results were compared with literature. The effects of the blade spacing on the flow field distribution, the lower blade speed and power consumption were examined. The results showed that with the increase of blade spacing, flow pattern from the “connecting flow” into “dispersed flow”, and the test results have good consistency. The influence of blade spacing to the velocity distributions below the upper impellers was relatively large and …
Discriminating Intact And Crack Hazelnuts Using Impact Sound Analysis,
2016
College of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China
Discriminating Intact And Crack Hazelnuts Using Impact Sound Analysis, Liu Bin, Wu Xue, Wang Yafei, Huang Zhigang
Food and Machinery
Impacting sound analysis is a new method for nuts grading and detection. The acoustic characteristic of the intact and crack hazelnuts is presented in this paper. The gradient accumulation, frequency spectrum and mel-frequency cepstral coefficients (MFCC) were extracted from the impacting sound signals. The results showed that the gradient accumulation parameter was easily calculated, and the accuracy of discriminating crack hazelnuts was about 80%. For frequency spectrum analysis, the spectral distribution of the intact hazelnuts sound concentrates was in 5～8 kHz and that of the crack hazelnuts tends to disperse in wide frequency range. It is difficult to choose the …
Design Of Control System For External Thread Whirling Machine Used For Processing Pressing Screw,
2016
School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei, Anhui 230009， China
Design Of Control System For External Thread Whirling Machine Used For Processing Pressing Screw, Lin Xudong, Wen Jie, Lv Tao, Wu Yanming
Food and Machinery
An automatic control system for the external thread whirling machine which is designed, with PLC as master controller and touch screen as human machine interface，using servo motor and AC motor as actuator, achieves automatic processing for different specifications pressing screw by setting different parameters. The control system can be a one-shot forming by thread whirling compared with traditional processing methods and does not require adjustment for master plate compared with the original external thread whirling machine, thus significantly reducing the operator's skill requirements, eliminating human error makes knife angle more accurate.
Reserch On Separation And Purification Of Flavonoids In Hunan Pomelo,
2016
Hunan Province Institute of Products Quality Supervision and Inspection, Changsha, Hunan 410007, China
Reserch On Separation And Purification Of Flavonoids In Hunan Pomelo, Peng Chengcheng, Deng Fangming
Food and Machinery
Taking Hunan pomelo fruit drop as raw materials, ethanol ultrasonic extraction of flavonoids pomelo, Research AB-8, NKA-9, D110 and ADS-17 four types of macroporous resin separation and purification process optimization pomelo flavonoids. The results showed that: AB-8 macroporous highest amount of total flavonoids Hunan pomelo, reaching 0.70 mg/mL; integrated adsorption, recovery, purity and absorption rate and other indicators, AB-8 macroporous resin separation and purification of the Hunan Xiang optimal conditions grapefruit flavonoids was: 1∶10 aspect ratio; the adsorption velocity 1.5 BV/h, the eluent pH value 4.0, eluent 70% ethanol eluted dosage 4 BV, analytical flow rate 2 BV/h, the resin …
Optimization Of Ultrasound/Microwave Assisted Extraction (Umae) Of Flavones From Vaccinium Bracteatum Thunb Leaves,
2016
School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China
Optimization Of Ultrasound/Microwave Assisted Extraction (Umae) Of Flavones From Vaccinium Bracteatum Thunb Leaves, Chen Yiyong, Zhang Dejin
Food and Machinery
Vaccinium Bracteatum Thunb Leaves (VBTL) was used as material. An efficient ultrasound/microwave assisted extraction (UMAE) technique was employed to extract flavones from VBTL. The effects of microwave power, ratio of solvent to solid, temperature and time on the yield of flavones from VBTL were investigated. To optimize the extraction process, response surface methodology was used based on the results of single factor experiment. IR spectrum was scanned to validate the effect of UMAE technology compared with the traditional solvent extraction technology. The results indicated the optimal conditions of UMAE were 140 W of microwave power, 50 W of ultrasound power, …
Optimization Of Ultrasonic Assisted Pectinase Extraction Of Flavonoid In Hawthorn Juice,
2016
Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Science, Zhengzhou, Henan 450009, China
Optimization Of Ultrasonic Assisted Pectinase Extraction Of Flavonoid In Hawthorn Juice, Liu Hui, Zhang Chunling, Liu Jiechao, Hu Lina, Jiao Zhonggao
Food and Machinery
In order to study the optimum ultrasonic-assisted extraction technology of flavonoids in hawthorn juice under pectinase treatment, the single-factor tests and orthogonal array design were employed to optimize the extraction conditions. The effects of boiling treatment time, ultrasonic extraction time, ultrasonic extraction temperature and ultrasonic power on the content of flavonoids in hawthorn juice were researched. And the hawthorn flavoinoid extraction conditions were optimized as follows: boiling treatment time 30 min, ultrasonic extract time 50 min, ultrasonic extract temperature 50 ℃ and ultrasonic power 150 W. Under the optimized extraction conditions, the content of flavonoids was 335.32 mg/100 mL. Ultrasonic …
Optimization On Enzymatic Hydrolysis Processing From Pepper Meal Protein Isolate,
2016
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
Optimization On Enzymatic Hydrolysis Processing From Pepper Meal Protein Isolate, Zhao Jing, Wang Yan
Food and Machinery
Extraction of crude protein from pepper meal, by the establishment of protease hydrolysis pepper meal protein isolate preparation in the best condition of flavor peptides was studied. Through judging the degree of hydrolysis and yield of peptide, the compound protease had the best hydrolyzation effect in digesting pepper meal protein isolate among the trypsin, papain, alkaline, compound protease. The results showed that compound protease had best effect. Selecting solid-liquid ratio(m︰V), amount of enzyme, hydrolysis time, pH and hydrolysis temperature as experiment factors, the best technological condition of digesting pepper meal protein isolate was determined by method of single factor experiment …
Effect Of Hot Air Drying Temperature On Qualities Of Sweet Potato Powder,
2016
College of Chemical and Biological Engineer, Hezhou University, Hezhou, Guangxi 542899, China; Institute of Food Research, Hezhou University, Hezhou, Guangxi 542899, China
Effect Of Hot Air Drying Temperature On Qualities Of Sweet Potato Powder, Guo Ting, Chen Zhenlin, He Xinyi, Xie Dongdi, Huang Huiling
Food and Machinery
In order to investigate the temperature on the quality of sweet potato powder by hot air drying, the color, rehydration capacity, particle size, viscosity, bulk density, reducing sugar and amylum of the sweet potato powder were compared. Results showed that hot air drying temperature had a significantly influence on the rehydration, particle size, viscosity and amylum of sweet potato powder (P<0.05). With the drying temperature rising, the dry basis moisture content decreased faster, the drying time shortened and amylum content increased. The sweet potato powder particle size prepared at hot air drying in 80 ℃ was the minimum, and the rehydration was the highest with good color.
Optimization On Extraction Technology Of Puerarin From Puerarialobata,
2016
Department of Public Health, Chengdu Medical College, Chengdu, Sichuan 615000, China
Optimization On Extraction Technology Of Puerarin From Puerarialobata, Cao Xiong, Ai Fang, Liu Mengyao, Wang Tong, Wu Aijuan, Zheng Qiang, Li Chao, Yin Xia, Han Qin
Food and Machinery
In order to explore the optimum conditions of puerarin, the extraction process was optimized by single factor test and response surface design. The extract was identified by high performance liquid chromatography (HLPC) for puerarin or not.The results showed that the best extraction conditions were: ethanol volume fraction 50%, solid-liquid ratio of 1∶25(m∶V), extraction time 70 min and extraction temperature of 60 ℃With those conditions, the expected content of puerarin is 96.79%, and the testing results of HPLC is consistent with the element standard of puerarin.
Preparation Of Natural Cream Flavor From Natural Butter By Mixed Enzyme Hydrolysis,
2016
Department of Food Science and Engineering, Jinan University, Guangzhou, Guangdong 510632, China
Preparation Of Natural Cream Flavor From Natural Butter By Mixed Enzyme Hydrolysis, Zhou Meiyu, Fu Liang
Food and Machinery
Prepared natural cream flavor by mixed enzyme with two kinds of lipase. Through the determination of acid value and sensory evaluation, the palatase 20000L and lipase MER were selected for enzymolysis reaction. The optimum conditions for enzymatic hydrolysis of butter were palatase 20000L 0.18%, lipase MER 0.09%, hydrolysis time 9 h, temperature 40 ℃ and pH 7.0. By GC-MS analysis, the main flavor components consist of 11 kinds of substances include short chain fatty acids, small amount of ketones, lactones and esters. Through baking applications and sensory evaluation, finished bakery products had a thick milk and long lasting flavor, without …
Antitumor And Antiangiogenic Effects Of Flavonoids,
2016
College of Materials Science and Engineering of Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Antitumor And Antiangiogenic Effects Of Flavonoids, Li Xiangzhou, Luan Fangfei, Zhang Sheng, Huang Dan
Food and Machinery
Flavonoids drugs are effective, natural, and their toxic and side effect are relatively mild. Otherwise, they have many kinds of biological effects such as anti-inflammatory, anti-bacterial, reducing blood fat, anti-aging and so on.The treatment of malignant tumor is difficult to conquer in the medical community. The majority of clinical antitumor drugs have side effects. This paper elaborated the research progress of anti-tumor and anti-angiogenesis of plant flavonoids from the cellular level, molecular level and animal models level, which can provide a reference for further development and utilization of flavonoids in antitumor and anti-angiogenesis.
2016 Cow-Calf Production Shows Less Profitability,
2016
University of Nebraska-Lincoln
2016 Cow-Calf Production Shows Less Profitability, Roger Wilson
Cornhusker Economics
Economics Department formulated four cowcalf budgets. The Sandhills Cow/Calf Producer Budget is for a herd of 500 cows and the data is from a panel of producers in Cherry County. The remaining three budgets are the 50-cow herd located in the panhandle of the state, and the 300- and 750-head Cow Herd System generally located in and around Custer County. These last three budgets were compiled from producer survey data collected for this purpose. Budgets are available online at http:// farm.unl.edu/beef#budgets.
U.S. Drought Monitor, January 26, 2016,
2016
National Drought Mitigation Center/University of Nebraska-Lincoln
U.S. Drought Monitor, January 26, 2016, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 26, 2016 (1/26/16) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.
The Real Footprint Of Electric Vehicles, And What That Could Mean For Our Future,
2016
Colby College
The Real Footprint Of Electric Vehicles, And What That Could Mean For Our Future, Krista Brown
Journal of Environmental and Resource Economics at Colby
This paper looks at the impact of electric vehicles on CO2 emissions specifically based on the type of electricity used in each New England state analyzed. The research looks at the question of whether or not emissions will in fact be lowered as electric cars start to take the majority of vehicles used instead of the conventional cars that take up a much larger percent of the motor vehicles used today. Taking into account the use of electricity and how many sources of electricity also release a substantial amount of emissions, we see how valid the public opinion of electric …
The Effect Of The Deer Population On The Number Of Car Accidents,
2016
Colby College
The Effect Of The Deer Population On The Number Of Car Accidents, Timothy J. Hallock Jr
Journal of Environmental and Resource Economics at Colby
This paper examines the relationship between the deer population and the number of car accidents in New York State from 2002-2012. Data collected includes information on the amount of deer hunted, the number of car accidents, and the number of hunting permits issued. This paper also involves a county level analysis within New York State of 56 counties from 2007 - 2012. An important part of analysis of this paper is the examination of the Buck population vs. the Doe population on the number of car accidents. This is an important study because of its possible policy implications regarding the …
The Effect Of Information On Avoidance Behavior And Bicycle Transportation: A Study Of “Spare The Air” And Bay Area Bikeshare,
2016
Colby College
The Effect Of Information On Avoidance Behavior And Bicycle Transportation: A Study Of “Spare The Air” And Bay Area Bikeshare, Paige W. Whistler
Journal of Environmental and Resource Economics at Colby
This paper seeks to address the effect of “Spare the Air” pollution control alerts in the San Francisco Bay Area in California on the use of Bay Area BikeShare as a form of transportation. By observing the daily alerts on the duration of rides using BikeShare, this paper observes if STA ozone alerts are effective in changing human behavior. The results show that only as a subscriber to the BikeShare program and on an alert day does duration decrease whereas customers regardless of if it is an alert day will ride more often and at longer distances. The results contradict …
Socioeconomic Attributes’ Relationship To Green Commercial Office Buildings,
2016
Colby College
Socioeconomic Attributes’ Relationship To Green Commercial Office Buildings, Tianyang Zhou
Journal of Environmental and Resource Economics at Colby
This paper examines the relationship between the socioeconomic attributes of a state and its green commercial office space adaptation. I hypothesize that a state with high socioeconomic status will have a high green building adoption. Additionally, the high socioeconomic status states may be more likely to invest in green commercial buildings with higher LEED certification levels, and various types of LEED commericial office projects are affected by the socoeconomic attributes differently.
Do Peers Get Punished: Stock Market Effect Of Bp Oil Spill On Peers,
2016
Colby College
Do Peers Get Punished: Stock Market Effect Of Bp Oil Spill On Peers, Yuga Koda
Journal of Environmental and Resource Economics at Colby
This paper examines the stock market reaction to the British Petroleum oil spill on April 20, 2010. This event study looks at different sectors that may be affected by the oil spill. It finds that different industries do not have significant abnormal returns, with two exceptions. First, utilities companies have a very small positive abnormal return for a short period of time after the incident. Second, when only looking at BP's direct competitors, there is a statistically significant negative abnormal return, implying that BP's competitors are punished for BP's mishap.
Media Effects On Solar Panel Installations Across 20 States,
2016
Colby College
Media Effects On Solar Panel Installations Across 20 States, Casey Romeo
Journal of Environmental and Resource Economics at Colby
This paper looks at the relationship between media coverage of solar power and the solar panel installation at a state level. Specifically, it aims to find if more newspaper articles cause more households to adopt solar energy. Use data from 20 states from 2009 to 2014. I find that there is a modest, yet positive and statistically significant relationship between newspaper articles and installations, which suggests that the media does influence the decision to install solar panels. There is possible endogeneity between these two variables. Disentangling this endogeneity is beyond the scope of this research and would be a topic …
