Early Warning Of Afb1 Contamination In Stored Maize By Monitoring Catalase Activity,
2017
College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, China
Early Warning Of Afb1 Contamination In Stored Maize By Monitoring Catalase Activity, Zhang Yaolei, Zhai Huanchen, Zhang Shuaibing, Cai Jingping
Food and Machinery
The early warning is significant forpreventing stored maize from aflatoxin B1 (AFB1) contamination. To reveal the relationship between the change of catalase activity and AFB1 contamination in stored maize, the storage experiments of maize were carried out at different temperatures and moisture contents. The results showed the increasing trend of catalase activity and contaminated AFB1 was accordant, which displayed a quadratic equation with the correlation coefficient of more than 0.95. The rates of catalase activity increase and AFB1 production by mould in maize could be affected by storage temperature and maize moisture content, but …
Effect Of Nano-Sio2 Modified Ldpe Film On Postharvest Quality Of Gonggan,
2017
Institute of Food Science and Engineering Technology, Hezhou University, Hezhou, Guangxi 542899, China
Effect Of Nano-Sio2 Modified Ldpe Film On Postharvest Quality Of Gonggan, Song Mubo, Fang Fang, Luo Zishen, Li Dong, Chen Zhenlin, Xuan Liting, Shuai Liang, Duan Zhenhua
Food and Machinery
In order to study the effect of nano-SiO2 modified low density polyethylene (LDPE) film on Gonggan storage, the influences of unpacked, LDPE film and nano-SiO2 LDPE film packaging treatments on postharvest quality of Gonggan were investigated. The results showed that both of the packing materials could improve the postharvest quality of Gonggan, and nano-SiO2 LDPE film was better in slowing down the increase of the decay rate and weight loss ratio, and the decrease of firmness. Moreover, the nano-SiO2 LDPE film was found to be better in inhibited the accumulation of malonaldehyde (MDA), and maintained higher …
Research Of Air Distribution Characteristic For Single Evaporator Multiple Temperature Zones Refrigerated Truck,
2017
School of Machinery &Electronic Engineering & Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, China
Research Of Air Distribution Characteristic For Single Evaporator Multiple Temperature Zones Refrigerated Truck, Zhao Yao, Tang Gangzhi, Zhu Sunke
Food and Machinery
Compared to single temperature zones refrigerated truck, multiple temperature zones refrigerated truck is more comfortable with cargo demand and temperature changes. Air distribution in the truck cold room could affect its temperature significantly. In this paper, the influence of air distribution to temperature range in single evaporator multiple temperature zones refrigeration truck was studied based on CFD technology. Moreover, temperature non-uniformity problems were also analyzed. The results provided a theory basis for the design optimization of multiple zones refrigerated truck.
Refrigeration Monitoring System Of Ultra-Low Temperature Cold Storage Onfishing Boat Based On Virtual Instruments,
2017
College of Food Science and Technology, Shanghai Ocean University,Shanghai 201306, China
Refrigeration Monitoring System Of Ultra-Low Temperature Cold Storage Onfishing Boat Based On Virtual Instruments, Xu Minsheng, Xie Jing, Wang Jinfeng
Food and Machinery
There are several problems in the ultra-low temperature refrigeration control system on the tuna fishing boat, including the low degree of automation, unsatisfactory monitoring effect and poor monitoring conditions. In order to solve these problems, a tuna fishing boat ultra-low temperature cold storage refrigeration monitoring system was designed and developed by using the virtual instrument technology, based on LabVIEW. This system achieved a real-time monitoring, and displayed a unit’s data and dynamic curves. Moreover, it also included a data processing and storage, a control parameter settings, an electronic expansion valve real-time status monitoring, a valve control and an output display. …
Control System Of Distributed Cabinet Based On Thermoelectric Cooler For Fruits And Vegetables,
2017
College of Engineering, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Engineering Research Center of Agricultural Product Cold Chain Logistics, Guangzhou, Guangdong 510640, China
Control System Of Distributed Cabinet Based On Thermoelectric Cooler For Fruits And Vegetables, Zou Chidao, Lu Enli, Lu Huazhong, Zeng Zhixiong, Zhao Junhong
Food and Machinery
Preservation of environment temperature is an important factor to protect distribution quality of fruits and vegetables. In this paper, distributed cabinet based on thermoelectric cooler (TEC) for fruits and vegetables was studied while control system based on ATmega16 microprocessor of AVR series was designed. By using ICCV7 for AVR software platform and C program, software of control system was researched. After ambient temperature of distributed cabinet and water temperature of TEC system were acquainted, executions such as TEC, fans and pumps were control automatically by using a dual limit control methods. Persevered temperature of distributed cabinet and high temperature protection …
Application Of A New Type Of Fluorine Free Refrigerant Hcr22 In Food Refrigeration System,
2017
Food Science and Engineering College, Qingdao Agricultural University, Qingda, Shandong 266109, China; Qingdao Key Lab of Modern Agricultural Quality and Safety Engineering, Qingdao, Shandong 266109, China
Application Of A New Type Of Fluorine Free Refrigerant Hcr22 In Food Refrigeration System, Liu Jinguang, Xiong Xubo, Wang Shiqing, Luan Mingchuan, Zhang Yan, Jiang Wenli
Food and Machinery
In order to explore the feasibility of the application of new fluorine free refrigerant in the existing refrigeration system, a traditional one based on R600a refrigeration, a testing equipment of new refrigeration system was designed. This new testing equipment was dominated by a cooling equipment, temperature tester and pressure detector. In this study, the refrigerant R600a replaced by a new type of fluorine free refrigerant HCR22, and the coefficient of performance and cold storage capacity were taken as indexes, and conducted an experiment for 12 h, the refrigerating capacity of two refrigerants in different quantity of charging ratio was studied. …
Extraction And Antioxidant Activity In Vitro Of Flavonoids In Cold Pressed Cake Of Zanthoxylum Armatum Dc. Prodr.,
2017
Sichuan Agricultural University College of Food Science, Ya’an, Sichuan 625014, China
Extraction And Antioxidant Activity In Vitro Of Flavonoids In Cold Pressed Cake Of Zanthoxylum Armatum Dc. Prodr., Wang Chunxia, Pu Biao, Jiang Yan, Fu Benning
Food and Machinery
Response surface methodology was used to optimize the microwave- assisted extraction of flavonoids from cold pressed cake in Zanthoxylum armatum DC. Prodr， and the antioxidant activity in vitro of flavonoids were analyzed. The results showed that the optimum extraction process of flavonoids were： microwave power 506 W, microwave treatment time 256 seconds, ethanol concentration 75%, ratio of liquid to material 501. Under this condition, extraction ratio of flavonoids was 0.40%±0.04% ( in terms of rutin). The reducing power, the hydroxyl free radicals, DPPH free radicals, scavenging capacity of flavonoid extracts were increased gradually with the increasing of the mass concentration, …
Study On Isolation And Antioxidant Activity Of The Polysaccharide From Ganoderma Lucidum,
2017
College of Biological and Chemical Engineering of Hainan Institute of Science and Technology, Haikou, Hainan 571126, China
Study On Isolation And Antioxidant Activity Of The Polysaccharide From Ganoderma Lucidum, Xu Xuefeng, Li Guijuan, Yan Hao, Zhang Yu, Zhang Jingchang
Food and Machinery
Isolation, purification and antioxidant activity in vitro of polysaccharide from Ganoderma lucidum were studied. Polysac-charide was extracted from G. lucidum, and three fractions were isolated through ion exchange chromatography and allyl dextran gel chromatography from them, including GLPa-2, GLPb-1, and GLPc. The weight-average molecular weight was detected by gel permeation chromatographic, and then monosaccharide composition was detected by gas chromatography. The results were described as follows. The component parts of polysaccharides were composed of glucose, arabinose, xylose and mannose, with different containing rates, and the average molecular weight of GLPa-2, GLPb-1, GLPc was detected to be 3.65×105 Da, 3.87×10 …
The Analysis Of Resveratrol Contents And Their Antioxidant Activity In Different Varieties And Tissues Of Grapes,
2017
College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
The Analysis Of Resveratrol Contents And Their Antioxidant Activity In Different Varieties And Tissues Of Grapes, Chen Mengwei, Deng Qunxian, Zhang Jinrong, Lu Xiulan, Xia Hui, Wang Jin
Food and Machinery
The stems, skin and some varieties of grape seeds from six varieties classified as three kinds of color grape were used to extracted the resveratrol by organic solvent and then detected its content by HPLC. Moreover, the effect of resveratrol on DPPH radical and hydroxyl radical scavenging ability were also studied. The results showed that the resveratrol content in different grape varieties and tissue distributed differently, and the volume decreased in fruit stem, skin, and pip orderly. Furthermore, it was also found that the resveratrol content in the varieties of purple-black was the highest in the fruit skin, but it …
The Detection Of The Chemical Components In Oenanthe Javanica And Its Hypoglycemic Activity,
2017
Guiyang Nursing Vocational College, Guiyang, Guizhou 550081, China
The Detection Of The Chemical Components In Oenanthe Javanica And Its Hypoglycemic Activity, Guo Xiaoqing, Wei Longhua, Dai Tiantian, W Uqing
Food and Machinery
The chemical components of Oenanthe javanica from Guizhou and the hypoglycemic effect of its extracts on the diabetic mice induced by streptozotocin (STZ) was investigated in this paper. The chemical composition type in the wild O. javanica was detected in a single prediction experiment by using various chemical components of natural medicine. The total phenolic acids, flavonoids and sugar of O. javanica were determined by spectrophotometry. Diabetic mice model was established by STZ, and metformin was used as a positive control, the extracts from O. javanica was fed, blood glucose was measured. The results showed that O. javanica contained phenols, …
Effect Of Total Flavonoids From Perennial Lablab Sp. Hull On Immune Function In Mice,
2017
Food Engineering College of Jilin Engineering Normal University, Changchun, Jilin 130052, China
Effect Of Total Flavonoids From Perennial Lablab Sp. Hull On Immune Function In Mice, Cao Baiying, Jiang Xiujuan, Qi Yingxin, Chang Youquan
Food and Machinery
The effect of total flavonoids from Perennial Lablab sp. Hull(FPLH) on the immune function and antioxidant activity in vivo were studied. With index of immune organ, spleen lymphocyte proliferation function, phagocytic activity of macrophages, cytokine levels in serum(IFN-γ and IL-4), the activity of alkaline phosphatase in serum, the activity of SOD, GSH-Px and the level of MDA in serum as the evaluated indices, the immune function and antioxidant activities of FPLH in mice was studied. The results showed that the thymus index and spleen index of FPLH was higher than the control group by 12.34% and 8.67% respectively; the spleen …
Ultrasonic Enhancement Of Tartary Buckwheat Germination And The Production Of Nutrients In Sprouts,
2017
College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
Ultrasonic Enhancement Of Tartary Buckwheat Germination And The Production Of Nutrients In Sprouts, Wang Shunmin, Wang Jianfei
Food and Machinery
Tartary buckwheat (Fagopyrum tataricum) seeds were treated using ultrasonic at different power and time and temperature. The exposed grains were germinated, then harvested after incubation on the 2rd, 4th, and 6th days. The effects of ultrasonic on the germination rate of the tartary buckwheat seeds and some nutrient compounds in the sprouts were detected, and the DPPH radical-scavenging activities of the seedlings were investigated. The results showed that with treatment of 280 W ultrasonic, at 20 ℃ for 35 min, the highest rates of initial (88.0%) and final (100.0%) germination were obtained after incubation. With the treatment of 240 W …
Ultrasonic-Assisted Extraction And Physicochemical Characteristics Of Collagen From Rabbit-Skin,
2017
College of Food Science, Southwest University, Chongqing 400715, China
Ultrasonic-Assisted Extraction And Physicochemical Characteristics Of Collagen From Rabbit-Skin, Zhang Xiaojie, Zhang Yuhao, Ma Liang, Ma Mingsi, Zheng Hong, Sun Yi
Food and Machinery
The application of ultrasonic irradiation to extract pepsin-soluble collagen from the skins of rabbit was investigated in this study. The results showed that the extraction rate of collagen using the ultrasonic irradiation was (83.69±0.51) % and the yield increased by 25% in comparison with the conventional pepsin isolation method. The result of polyacrylamide gel electrophoresis confirmed that the subunits structure of collagen using the ultrasonic irradiation was mainly of α1, α2 and β, without subunit degradation. Moreover, the ultraviolet spectrum exhibited a typical absorption peak at 217 nm, indicating that it greatly maintained the characteristics of type I collagen. Additionally, …
The Effect Of Different Hydrolloids On The Quality Of The Germinated Brown Rice Bread,
2017
Institute of Agro-products Processing, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China
The Effect Of Different Hydrolloids On The Quality Of The Germinated Brown Rice Bread, Cao Lei, Xia Qing, Song Yu, Lu Chaoqun, Tao Shu, Liu Chao
Food and Machinery
The effect of different hydrolloids on quality of the germinated brown rice (GBR) bread was investigated in this study, by adding different content of hydroxy propyl methyl cellulose, sodium alginate and xanthan gum. The results showed that different hydrolloids had different effects and suitable adding concentration on the bread. Compared with the GBR bread without any hydrolloids, the specific volume of bread increased by 25%, whereas its hardness decreased by 35%. However, the springiness and the cohesiveness increased by 9.5% and 9.8%, respectively, when added with 2% hydroxy propyl methyl cellulose in the bread. After adding 0.1% sodium alginate, the …
Optimization On Extrusion Process Ofaloe-Maize Blend By Linear Interpolation Method,
2017
Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China
Optimization On Extrusion Process Ofaloe-Maize Blend By Linear Interpolation Method, Wei Hongyu, Luo Shaoming, Zhu Lixue, Zhou Yumei
Food and Machinery
Aiming at the problem of low efficiency of by-product in aloe processing, the aloe leaves were dried，crushed and mixed with maize flour, and then were extruded to make aloe-maize health food. Single factor and five factors four levels orthogonal test were used to study the influence of process parameters on characteristics of the extruded products. Linear interpolation method was used to evaluate the products characteristics, and the process parameters were optimized: the feeding rate is 30 r/min, the screw speed is 115 r/min, the water content is 14%, the aloe content is 4% and the extrusion temperature is 150 ℃
Study On Technology Of Coagulated By Fermented Soybean Processing Waste Water,
2017
Department of Biological and Chemical Engineering,Shaoyang University, Shaoyang， Hunan 422000,China; Soybean Processing Techniques of the Application and Basic Research in Hunan Province, Shaoyang, Hunan 422000,China; Hunan Provincial Engineering Research
Study On Technology Of Coagulated By Fermented Soybean Processing Waste Water, Xie Linglai, Zhao Liangzhong, Yin Lebin, Chen Chuqi, Zhou Juan, Zhu Dan
Food and Machinery
Fermented soybean processing waste water was used as coagulant to produce tofu. On the basis of single factor experiments, the total acid of fermented soybean processing waste water, amount of fermented soybean processing waste water and the temperature of pointing soybean milk were main factors, taking the sensory evaluation score and springiness, and the coagulation conditions were optimized through response surface methodology. Results showed that the optimum coagulation parameters were as follows: the total acid of fermented soybean processing waste water 5.3 g/kg, the amount of fermented soybean processing waste water 29% and the temperature of pointing soymilk 76 ℃. …
Optimization Of Technological Conditions For Enzymatic Hydr Olysis Of Sweet Corn Pulp,
2017
Faculty of Environmental and Biological Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China)
Optimization Of Technological Conditions For Enzymatic Hydr Olysis Of Sweet Corn Pulp, Lu Manxia, Zhang Ling, Lin Zhisang, Wang Zeqi, Huang Xiaocui, Xie Huxi
Food and Machinery
The sweet corn juice was prepared by using double enzymes method, i.e. catalyzed by medium temperature α-amylase and saccharifying enzyme. The soluble solid matter content was analyzed as the basis of evaluation. The liquefaction process was investigated in solid-liquid ratio, medium temperature α-amylase dosage, enzymatic hydrolysis temperature and time on the amylolysis effect, and then the effects of the amount of saccharifying enzyme, saccharification temperature and time on the enzyme solution were also studied. On the basis of single factor experiments, the optimum technological conditions of double enzyme hydrolysis for sweet corn were optimized by orthogonal experiment. The results showed …
Research Progress Of Inonotusobliquus Polysaccharides,
2017
College of Forestry, Northeast Forestry University, Harbin, Heilongjiang 150040, China
Research Progress Of Inonotusobliquus Polysaccharides, Chang Chen, Bao Yihong
Food and Machinery
Inonotus obliquus polysaccharide is one of the major constituents of active components in Inonotus obliquus, which has important function on antioxidant, anti-tumor etc. and is one kind of potential health ingredients. Study the progresses of Inonotus obliquus polysaccharide, including the extraction, isolation, purification, identification, bioactivity and composition, and offer the futher researchs and prospects of Inonotus obliquus polysaccharide.
Statistics And Analysis Of Research Literature Of Genetically Modified Food In China,
2017
Department of Humanities and Foreign Languages, Anhui Business College of Vocational Technology, Wuhu, Anhui 241002, China
Statistics And Analysis Of Research Literature Of Genetically Modified Food In China, Wu Songfei, Fan Jinhua
Food and Machinery
Based on the theories of statistics and econometrics, the research selected 341 CNKI research papers on Chinese genetically modified food, published during 1997 and 2016. It was pointed out that these published journals demonstrated a certain degree of concentration, core scholars carried out in-depth researches and research directions representing a certain degree of regularity and extensionality. The results showed that researches of domestic scholars on genetically modified foods tend to increase, while few research literatures on natural science were found. It was necessary that the researchers should commit to studying transgenic engineering technology. However, as social science research literature revealed, …
The Origin Of Ecological Liquor-Making And Its Industrial Thought,
2017
Department of Biology and Chemistry, Shaoyang University, Shaoyang, Hunan 422000, China
The Origin Of Ecological Liquor-Making And Its Industrial Thought, Yu Yougui, Zeng Hao
Food and Machinery
The ecological wine products as the center have been provided, and the new model of circular economy have also been built in the industry of ecological liquor-making. Ecological liquor-making embodied in the pursuit of harmony of economic, social and ecological benefits to achieve coordinated development between the human and the nature environment, between the brewing industry and natural environment, and between social and natural environment. It was contained that the harmony thought of Taoist culture, Marx's thought of ecological ethics, the whole idea of system theory, the sustainable development's thinking of scientific development views, and the beautiful Chinese thought of …
