Separation And Purification Of Tea Saponin By Membrane Separation Combined With Macroporous Resin,
2015
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China
Separation And Purification Of Tea Saponin By Membrane Separation Combined With Macroporous Resin, Cheng Wenjuan, Xie Hairong, Qin Yong, Liu Rong, Deng Zeyuan
Food and Machinery
The combination technology of membrane separation technology and macroporous resin purification technology have been adopted to separate and purify tea saponin. Tea saponin extractive was preliminarily purified and concentrated by flowing through ceramic membrane and 360 Da nanofiltration membrane in sequence, the yield and purity of tea saponin is 62.1% and 79%, respectively. On the basis of static adsorption and desorption as well as dynamic adsorption and desorption experiments, the macroporous resin AmberliteXAD7HP was selected for further purification. the The optimum conditions for purification of tea saponin using macroporous resin were established by single factor tests as follows: the sample …
Extra-High Pressure Extraction Of Polyphenols From Walnut Green Peels By Response Surface Methodology,
2015
College of Life Sciences, Tarim University, Alar, Xinjiang 843300, China; Xinjiang Production and Construction Corps Key Laboratory to Process of Agricultural Livestock Products in Southern Xinjiang, Tarim University, Alar, Xinjiang 843300, China
Extra-High Pressure Extraction Of Polyphenols From Walnut Green Peels By Response Surface Methodology, Song Lijun, Hou Xujie, Li Yawen, Zhang Li
Food and Machinery
Studied the extra-high pressure extraction of polyphenols from Walnut green peels. The effect of operation conditions such as extraction temperature, pressure, time and ratio of material were analyzed. On the basis of single-factor test, the optimum extraction technology of walnut green peels polyphenols and mathematical regression model were established by response surface methodology. The results showed that the optimal extraction conditions were as followed: alcohol concentration of 50%, processing temperature of 42 ℃, extraction pressure of 310 MPa, extraction time of 6 min, ratio of liquid to material of 40∶1(V∶m). Under these conditions, the maximum predictive yield of polyphenols from …
Optimization On Protein Extraction From Walnut Dregs,
2015
Hunan Prospecting Designing and Research Institute for Agricultural Forestry and Industry, Changsha, Hunan 410007, China
Optimization On Protein Extraction From Walnut Dregs, Liu Shuangfeng, Wang Huasheng
Food and Machinery
Using orthogonally rotational combination design, alkali extraction and acid precipitation was proposed for extraction of protein from walnut dregs.The optimal preparation conditions of the protein were as follows: extracting pH 9.0, extracting time 124 min, extracting temperature 53 ℃ and solid-liquid ratio 1∶22 (m∶V). Under the conditions, the yield of protein was (67.94±005)%, and its isoelectric point was pH 5.0 .
Optimizati Of Continuous Phase Transition Extraction Progress For Eucalyptus' Polyphenols,
2015
College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
Optimizati Of Continuous Phase Transition Extraction Progress For Eucalyptus' Polyphenols, Tan Rongwei, Cao Yong, Li Jiacheng
Food and Machinery
Eucalyptus' leaves were studied as the main raw material. The continuous phase transition extraction progress for eucalyptus' polyphenols was optimized by single factor test and Box-behnken. The effects were discussed for extraction time, extraction temperature and extraction solvent percentage on the yield of polyphenols. The optimal extraction conditions were found as follows: extraction temperature 79.99 ℃, extraction time 119.98 min and solvent concentration 78.13%. Under the optimal conditions, the yield of polyphenols was 11.58 g/100 g. The actual polyphenols yield was 12.01 g/100 g with the relative error 3.65%. The extraction conditions parameter obtained by the Response Surface Methodology to …
Study On Inteneration And Sterilization Of Areca By High-Temperature Dry Steam Treatment,
2015
Hunan Onyear Food Co., Ltd, Yiyang, Hunan 413000, China;Areca products Technology & Research Institute of Xiangtan,Xiangtan, Hunan 411100, China
Study On Inteneration And Sterilization Of Areca By High-Temperature Dry Steam Treatment, Li Zhi, Xu Huanhuan, Deng Jianyang, Jiang Xuewei, Li Hao
Food and Machinery
The effects were studied for the inteneration of areca hull and sterilization of endophytes in areca using high-temperature with dry steam treatment. The results showed that the optimal conditions were 110 ℃, 0.05 MPa, 15 min, which would intenerate areca fiber better and would not affect other characteristics of qualities. Under the same conditions, it also had a bacteria reduction or sterilization effect, which providing a new harmless and more effective method replacing the atmospheric cooking.
Study On The Processing Technology Of Ding'ao Myrica Rubra Wine,
2015
Wenzhou Vocational College of Science and Technology, Wenzhou, Zhejiang 325006, China
Study On The Processing Technology Of Ding'ao Myrica Rubra Wine, Li Yanpo, Huang Gaodi, Zhang Yang, Xu Jing
Food and Machinery
Taking Ding'ao myrica rubra as materials, the process parameters of wine were optimized by single factor test and Box-Benhnken response surface design. The effects were studied, such as juice content, fermentation time, fermentation temperature, sugar content and yeast adding amount. The results showed the optimal parameters that the juice content was 50%, fermentation time 5 d, fermentation temperature 29 ℃, sugar content 18.9% and yeast adding amount 5.15%, the myrica rubra wine has a unique aroma and color, the wine is clear and transparent, refreshing taste.
Optimization Of Fermentation Conditions For Improving Ferment Conditions Of Soy Sauce Fermented By Aspergillus Oryzae As3.042 Using Response Surface Analysis,
2015
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China; Hunan Key Laboratories of Food Science and Biotechnology, Changsha, Hunan 410128, China
Optimization Of Fermentation Conditions For Improving Ferment Conditions Of Soy Sauce Fermented By Aspergillus Oryzae As3.042 Using Response Surface Analysis, Kang Lei, Liu Suchun, Hu Maofeng
Food and Machinery
To optimize the fermentation conditions with index of amino acid nitrogen content for inspection of soy sauce fermented by aspergillus oryzae As3.042 by the response surface method. Firstly, the experiment was to determine the optimum fermentation conditions at 40 d of temperature, density of adding salty water and addition of salty water by using single factor experiment. On the basis of single factor experiment with amino acids as examining index, fermentation temperature, density of adding salty water and addition of salty water was optimized by using response surface analysis. the result was gotten, the optimum process for the temperature of …
Study On Quality Of Cucumber Pickles Fermented By Lactic Acid Bacteria,
2015
Department of Food Science and Engineering, Tianjin Agricultural University, Tianjin 300384, China
Study On Quality Of Cucumber Pickles Fermented By Lactic Acid Bacteria, Chen Ying, Wang Jinhui, Zhang Wenlingzi, He Xinyi
Food and Machinery
The preparation of cucumber pickled cabbage using direct val set (DVS) lactic acid bacteria fermentation powder was studied. Effects were determined, for DVS lactic acid bacteria powder content on the dynamic change of pH value, nitrite content, salinity, color value and the total number of colonies in the fermentation of pickled cucumber. Fuzzy comprehensive evaluation method was applied to select the optimum fermentation conditions. The results showed that with the increasing of fermentation time, pH value of cucumber pickle juice decreased gradually while acidity increased gradually. Cucumber salinity first increased and then stabilized. The color a value was increasing during …
Effect Of Decoloring Process On The Quality Of Fish Skin Collagen Peptides,
2015
College of Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China
Effect Of Decoloring Process On The Quality Of Fish Skin Collagen Peptides, Zhang Meng, Wang Baozhou, Chen Jun, Weng Wuyin
Food and Machinery
Collagen peptides from tilapia skin were prepared by enzymatic hydrolysis with protamex, and effects of activated carbon and macroporous adsorption resin on decolorizing of peptides were investigated. Based on the decolorizing rate and peptide loss, the optimum decolorizing conditions of collagen peptides were determined by orthogonal test. The results showed that the optimum decolorizing conditions of activated carbon were pH 4.5, 2% (m/V) activated carbon dosage, decolorizing time of 60 min and protein concentration of 50 mg/mL. Under those conditions, the decolorizing rate and peptide loss of collagen peptides were 92.66% and 11.23%, respectively. However, the decolorizing effect of macroporous …
Effect Of Nitrogen Filling On Quality Of Mineral Water,
2015
Company of Guangdong Dinghu Spring, Zhaoqing, Guangdong 526070, China
Effect Of Nitrogen Filling On Quality Of Mineral Water, Wu Musheng, Zhou Xinxin, Li Aimei, Yan Rian, Jiang Xinhui
Food and Machinery
In order to explore the effect of nitrogen filling on quality of mineral water, three kinds of mineral original water were put in airtight high pressure reaction reactor, with nitrogen filled by nitrogen cylinder. The samples under the different nitrogen pressure and pressure time were gotten by controlling the nitrogen pressure and pressure time. A series of factors were detected in the conditions, including chromaticity color, smell and taste, visible, pH, metasilicic acid, carbonates and bicarbonates, total dissolved Solids, Potassium, Sodium, Calcium, Magnesium, Strontium, water clusters. The results showed that there was no effect in mineral substance and water clusters, …
Study On Compound Quality Of Improver And Its Formula Of Sturgeon Fish Rods,
2015
Jiangsu Food and Pharmaceutical Science College, Huaian, Jiangsu 223003, China
Study On Compound Quality Of Improver And Its Formula Of Sturgeon Fish Rods, Tian Qiying
Food and Machinery
Organoleptic quality score of sturgeon fish rods as the indicator, the formula of compound quality improver was optimized through single factor and orthogonal design method. The results showed that, the best formula of compound quality improver: transglutaminase concentration 0.3%, 4% modified starch, maltodextrin 4%, carrageenan 2%. Product features, and the indicators determined were in accordance with the hygienic standard of GB 10144—2005.
Analysis On Marketing Risk Of Chinese Dairy Enterprises In Price Declining Of Milk Source,
2015
Wuhan Business University, Wuhan, Hubei 430056, China
Analysis On Marketing Risk Of Chinese Dairy Enterprises In Price Declining Of Milk Source, Gao Jincheng
Food and Machinery
Under the background of price of milk source at home and abroad, Chinese dairy enterprises will face a series of marketing risks including lack of domestic milk source, warehouse explosion, unreasonable product structure, and fierce market competition. In order to guarantee the healthy development of Chinese dairy industry, Chinese government and relevant parties should play the active role at the same time of improving the awareness of marketing risk prevention of Chinese dairy industry; establish the long-term benefit mechanism of dairy enterprises and dairy farmers; actively expand the dairy products consumption in domestic market; reasonably modify the consumption structure of …
Research Progress Of Ultrasonic Effect On Protein Extraction And Modification,
2015
College of Grain & Oil, Henan University of Technology, Zhengzhou, Henan 450000, China
Research Progress Of Ultrasonic Effect On Protein Extraction And Modification, Wu Qian, Zhang Lifen, Chen Fusheng
Food and Machinery
Protein is the basis of life activity, and is also one of the three largest indispensable energy materials. Ultrasonic, as a physical technique, has been applied in the research of extraction and modification of large molecules such as proteins and polysaccharides. The effect of ultrasonic on the physical and chemical properties, structure and functional properties of protein was discussed, and put forward the direction and expectation.
Defect And Improved Method Of The Food Security Law System,
2015
School of Social Management, Guiyang University, Guiyang, Guizhou 550005, China
Defect And Improved Method Of The Food Security Law System, Zeng Li
Food and Machinery
China's food security law system has been gradually established, but there are three fundamental flaws: the lag legal theories, the poor legislative system, inadequate attention to food safety risk monitoring and evaluation system. In this regard, the idea should be changed on food safety and food labeling, improvement of the food safety legislation system, and improvement of food safety risk monitoring and evaluation system, and then the system of food safety laws will be consummate.
The Role And Cultivation Of The Third Party Power In Food Safety Problems,
2015
Yancheng Institute of Health Sciences, Yancheng, Jiangsu 224005, China
The Role And Cultivation Of The Third Party Power In Food Safety Problems, Jiang Jie
Food and Machinery
In recent years, frequent exposure of the food safety problems have caused people to panic and social unrest. Now “Unified” government regulation pattern in China already can't adapt to the new problems under the wave of reform. The existing supervision method must be adjusted, and develop the third-party to fully mobilize the strength like industry associations, testing organizations, news media and social public to participate in the food safety supervision, and construct the food safety supervision system which is government-led and governed collaboratively by multiple subjects.
Optical Emission Spectroscopy Diagnostics Of Cold Plasmas For Food Sterilization,
2015
Purdue University
Optical Emission Spectroscopy Diagnostics Of Cold Plasmas For Food Sterilization, Abhijit Jassem, Michael Lauria, Russell Brayfield Ii, Kevin M. Keener, Allen L. Garner
The Summer Undergraduate Research Fellowship (SURF) Symposium
There is a growing need for economical, effective, and safe methods of sterilizing fresh produce. The most common method is a chlorine wash, which is expensive and may introduce carcinogens. High voltage cold atmospheric pressure plasmas are a promising solution that has demonstrated a germicidal effect; however, the responsible chemical mechanisms and reaction pathways are not fully understood. To elucidate this chemistry, we used optical emission spectroscopy to measure the species produced in the plasma generated by a 60 Hz pulsed dielectric barrier discharge in a plastic box containing various fill gases (He, N2, CO2, dry …
Preparation Of New Attapulgite Probiotic Emulsion,
2015
School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huai’an, Jiangsu 223003, China
Preparation Of New Attapulgite Probiotic Emulsion, Zhao Yuping, Wang Weijie, Yang Li
Food and Machinery
Attapulgite clay, soy protein, vegetable oil and Tween 80 were used to prepare Lactobacillus emulsion. By comparing the encapsulation rate, the results of the water-in-oil type were better than those of the oil-in-water type. The best encapsulation rate of the water-in-oil emulsion was 92.31% by the optimal orthogonal experiments. The viable cell was 5.171×1010 CFU/mL, and the emulsification was 2.176. The cells in the emulsion in the artificial simulation gastric juice declined with the time increasing, then constantly released in the artificial simulation intestinal juice, and the cells reached the maximum at the sixth hours, then gradually decay. The …
Identification Of Microorganisms In Traditional Sausage Using Molecular Methods,
2015
School of Chemical and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, China
Identification Of Microorganisms In Traditional Sausage Using Molecular Methods, Li Bingchao, Hu Weidong, Tang Wencai, Li Xingling, Zhong Qiang, Li Zaixin, Zhang Zhi
Food and Machinery
To explore the mechanism of the microbial flora in fermented sausage, traditional methods of microbiological plate dilution and biochemical detection were performed to isolate and culture yeast, E. coli., lactic acid bacteria and other microorganisms. DNA of these suspected strains were extracted, and 16S rDNA and ITS were amplified using PCR technique, and then the amplification products were sequenced. After the obtained gene sequences were compared with those in GenBank by sequence homology comparison, three high abundance suspected strains were identified as: Debaryomyces, Staphylococcus saprophyticus strain YSY1-6 and Lactobacillus delbrueckii subsp respectively.
On-Line Detection Research Of Apple’S Soluble Solids Content Of Diffuse Transmission Technology Based On Near Infrared Spectroscopy,
2015
School of Mechanical and Power Engineering, North University of China, Taiyuan, Shanxi 030051, China
On-Line Detection Research Of Apple’S Soluble Solids Content Of Diffuse Transmission Technology Based On Near Infrared Spectroscopy, Lu Huishan, Chen Pengqiang, Yan Hongwei, Gao Qiang, Wang Fujie
Food and Machinery
To study on internal quality of the fruit, in order to improve the detection speed and robustness, near infrared spectral diffuse transmission is applied to on-line detection research, using partial least squares regression (PLSR) algorithm combined with different pre-processing methods to establish the quantitative models of soluble solids content (SSC) of internal quality of the apple. The results of final model were achieved as follow: the model was stability which was used by first derivative combined with multiplicative signal correction (MSC), rootmean square errors of calibration and rootmean square errors of prediction are 0.17 and 0.39, respectively, the correlation coefficient …
Uncertainty Evaluation On Determination Of P-Hydroxy Benzoic Acid Ethyl Ester In Edible Betel Nut By Gas Chromatography Mass Spectrometry,
2015
Xiangtan Institute for Food and Drug Control, Xiangtan, Hunan 411100, China
Uncertainty Evaluation On Determination Of P-Hydroxy Benzoic Acid Ethyl Ester In Edible Betel Nut By Gas Chromatography Mass Spectrometry, Chen Xingying
Food and Machinery
To analyze the uncertainty evaluation of measurement results for p-hydroxy benzoic acid ethyl ester in edible betel nut by Gas chromatography mass spectrometry, the various factors were found, which affected uncertainty according to JJF 1059.1-2012 Evaluation and Expression Uncertainty in Measurement, and evaluated the synthetic uncertainty and expanded it, gave the uncertainty range of the measured value. It was provided support for methods discussing and evaluation on test reports. It is showed that three kind of factorshave significant contribution to the uncertainty synthesis, such as recovery factor, gas chromatography mass spectrometry and measurement repeatability.
