Relevance Features Of Rice Protein And Its Components To Physical And Sensory Properties Of Cooked Rice,
2016
School of Agricultural and Food Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China; College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang 310018, China
Relevance Features Of Rice Protein And Its Components To Physical And Sensory Properties Of Cooked Rice, Wang Pengyue, Shen Qingxia, Lu Xinghua, Pang Linjiang, Chen Zhongxiu
Food and Machinery
Taking the rice both with similar amylose and different protein contents as the research materials, the relevant characteristics of rice protein and protein component (PC) to physical property and sensory quality were studied. The results showed that the crude protein content of cooked rice changed little, and each PC content decreased to different degrees, in which a substantial reduction in albumin, and globulin changes little. And the rice glutelin content have a significant positive correlation with the total contents of protein components (TCPC) of rice, reduced percentage of glutelin content and TCPC in cooked rice. Most cooked rice physical parameters …
Comparison Of Nutritional And Functional Components In 6 Kinds Of Naked Oat,
2016
Academy of State Administration of Grain, Beijing 100037, China; Tianjin University of Science and Technology, Tianjin 300222, China
Comparison Of Nutritional And Functional Components In 6 Kinds Of Naked Oat, Li Xiaorui, Liu Shan, Wang Shixia, Yao Yang, Ren Guixing, Qi Wentao
Food and Machinery
The components of basic nutritional、functional active and characteristic ingredients in six representative naked oats were detected and compared. The results showed that, the total starch had the highest variation coefficient of 8.21% among all the 6 selected samples, and the amplitude of variation ranged from 51.50% to 64.32%. The contents of slowly digestible and resistant starch of Ba-you 3 and Hua-zao 2 in total starch were relatively high. The variation coefficient of rude fat was 26.29%, ranged from 3.13% to 7.75%. The proportion of unsaturated fatty acids of Ding-you-8 in total fatty acid was 84.00%, which was the highest, and …
Application Of Maillard Reaction To Improve The Quality Of Tobacco Sheets,
2016
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Application Of Maillard Reaction To Improve The Quality Of Tobacco Sheets, Zhang Peng, Yu Jingyang, Long Zhangde, Li Zhihua, Zhang Xiaoming
Food and Machinery
According to the principles，the influences of conditions of the maillard reaction, such as reaction time and ratios of exogenous amino acids to sugars, on the improving effects of tobacco sheets were evaluated. The results showed that when the initial pH being 7.0～8.0 and thermal reaction temperature of 70 ℃, the optimum conditions for maillard reaction of extracts were as follows: reaction time of 13h, and the ratios of exogenous amino acids to carbohydrates being Pro︰Gly︰Phe︰Cys︰peptides︰fructose as 13︰13︰13︰2︰0.3︰70. GC—MS was used to analyze the main flavor components of the reaction mixture, and the tobacco sheet samples were sensory evaluated by professionally …
Assessment On Joint Toxicity Of Heavy Metals In Agricultural Products Based On Luminescent Bacteria Method,
2016
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China; Hunan Province Key Laboratory of Food Science and Biotechnology, Changsha, Hunan 410128, China
Assessment On Joint Toxicity Of Heavy Metals In Agricultural Products Based On Luminescent Bacteria Method, Liu Xia, He Zao, Hu Yuxin, Zheng Shu, Luo Fang
Food and Machinery
Toxic of Pb2+, Cd2+, Hg2+, Pb2++Cd2+, Cd2++Hg2+, Pb2++Hg2+ and Pb2++Cd2++Hg2+ were investigated using luminescent bacteria test. The joint toxicities of heavy metals mixtures were assessed by toxic unit method and additive index method. Results showed that the joint toxicity of Pb2+ with Cd2+ was synergetic in action while the joint toxicities of Cd2+with Hg2+, Pb2+ with Hg2+, and Pb2+ with Cd2+, Hg2+were antagonistic.
A Comparative Research On Detection Methods Of Procyanidins From Chestnut Shells,
2016
Environmental and Biological Engineering College, Wuhan Technology and Bussiness University, Wuhan, Hubei 430065, China
A Comparative Research On Detection Methods Of Procyanidins From Chestnut Shells, Wei Qin
Food and Machinery
Determining the content of procyanidins from chestnut shells respectively with two kinds of methods. The average purity of purified product was 74.78% (RSD=0.99%) by using HPLC. Firstly optimizing molysite catalytic chromogenic condition of colorimetry to determine the colorimetric optimization of procyanidins from chestnut shells (CSPCs) by colorimetry with ferric ions as catalysis agent, on the basis of single-factor experiments, an orthogonal experimental design was employed, with Absorbance of extract as an index, to optimize four factors. The optimum colorimetric conditions were Fe3+ concentration of 0.01 g/mL, reaction time of 40 min, reaction temperature of 100 ℃, butanol-hydrochloric acid volume …
Optimization Of Extraction Process For Hs—Spme In Gc—Ms Of Volatile Compounds In Flavor Pickle Goose,
2016
College of Food, Sichuan Agriculture University, Yaan, Sichuan 625014, China
Optimization Of Extraction Process For Hs—Spme In Gc—Ms Of Volatile Compounds In Flavor Pickle Goose, Zhou Hengliang, Hu Yujiao, Li Cheng, Liu Aiping
Food and Machinery
The optimal extraction fiber was selected by comparing the extraction effect of different extraction fiber. Under this condition, response surface methodology was employed to optimize HS—SPME extraction conditions for volatile components in flavor pickle goose. The effects of extraction temperature, extraction time and desorption time on the total of peak area and the total number of volatile substances. The volatile compounds in flavor pickle goose were determined through SPME—GC—MS. Results indicated that the optimal extraction conditions of flavor pickle goose was obtained as follows: extraction fiber 75 μm CAR/PDMS, extraction temperature 55 ℃, extraction time 53 min, desorption time 4 …
Determination Of Bisphenol A In Canned Food By Hplc Method,
2016
School of Life Sciences, Hefei Normal University, Hefei, Anhui 230000, Chian
Determination Of Bisphenol A In Canned Food By Hplc Method, Dai Huanhuan
Food and Machinery
The hollow fiber liquid phase microextraction high performance liquid chromatography (HF—LPME—HPLC) of bisphenol A in canned food were determined to establish a simple, fast and accurate detection method. Mainly use the two-phase hollow fiber (HF) of liquid phase microextraction (LPME) technology, combined with high performance liquid chromatography to the determination of bisphenol A (BPA) content, so as to realize the optimization of the extractant, sample solution pH, extraction temperature, extraction time and stirring rate and other basic data parameters optimization,The results of the study show that: to octanol as the extractant, the selection of the determination of food sample solution …
Design Ideas Andanalysis On Application Prospects Of Potato Starch Processing Machine,
2016
Henan Quality Polytechnic, Department of Food Chemistry, Pingdingshan, Henan 467000, China
Design Ideas Andanalysis On Application Prospects Of Potato Starch Processing Machine, Li Shuhua, Wang Kai, Yan Zehua
Food and Machinery
In this paper, analyzes the status quo of China's potato starch processing, in view of potato planting more dispersed and intolerance storage features, a machine design ideas was put for small potato starch processing, to avoid the traditional potato starch factory wastewater concentration of waste pollution problem, and its application prospect was analyzed.
Design Of Egg Fruit Automatic Processing Device Based On Principle Of Servo,
2016
College of Horticulture and Landscape Architecture, Hainan University, Haikou, Hainan 570228, China
Design Of Egg Fruit Automatic Processing Device Based On Principle Of Servo, Zhang Zhi, Wang Yumo, Zhang Yan, Ren Xibao
Food and Machinery
Based on the principle of servo, an egg fruit automatic processing device with theoretical computational analysis and structure overall design was designed, . Experimental studies showed that egg fruit automatic processing device,based on the principle of servo, could process fresh fruit 1.1 t averagely per hour, and its obtaining rate of juice reached 28%. Juice, with high quality and purity, presented little foreign flavor. Rate of peel collection was up to 97%, and 26% energy consumption lower than that of P6G-300 type machine. It also obtained self-adaptive ability, thus could separate out juices of high quality in a rapid speed, …
Design Of Rubber Fruit Sheller,
2016
Institute of Electrical and Mechanical Engineering, Hainan University, Haikou, Hainan 570228, China
Design Of Rubber Fruit Sheller, Zhao Hua, Wang Tao, He Zhuoliang
Food and Machinery
In order to realize the mechanized shelling operation and improve the shelling efficiency in rubber fruit processing, a sheller mechine was developed. The shelling principle of the proposed mechanism is based on the ripping and rubbing effects produced by the compression and shearing action together. The shelling unit comprises cutting means, pressing means and separating means. The rubber fruit to be shelled fall into the cutting unit by gravity and are shelled by cutting and squeezing action. The shelled kernels and the broken shell drop to the separating means to be separated. The shelling machine is simple, easy to operate …
Effect Of Different Harvest Dates On Qualities Of Juglans Siggillata L.,
2016
Production Forest Institution of Xinjiang Academy of Forest Science, Urumqi, Xinjiang 830000, China
Effect Of Different Harvest Dates On Qualities Of Juglans Siggillata L., Wang Jianyou, Liu Fenglan, Mao Jinmei, Han Hongwei
Food and Machinery
In order to study and analyze the effect of different dates on qualities of walnut (Juglans siggillata L.), main qualities of wen 185, xin 2, zha 343 were determined and analyzed on September first, tenth, twentieth, thirtieth and October tenth 2014. The results showed that the contents of reducing sugar, fat and protein in wen 185, xin 2 and zha 343 increased and reached the peak on October tenth. The contents of Vitamin E and ash of walnuts were comparatively high, and less moisture was lost. Over all, there were significant differences between nutrients in every single specie, as well …
Optimization On Compound Solvent Extraction Of Oat Bran Oil And Its Antioxidants Analysis,
2016
The School of Food Science and Technology, Jiangnan University,Wuxi, Jiangsu 214122, China
Optimization On Compound Solvent Extraction Of Oat Bran Oil And Its Antioxidants Analysis, Yuan Ruling, Wang Ren, Wang Li, Luo Xiaohu, Li Yongfu, Li Yanan, Chen Zhengxing
Food and Machinery
In order to obtain higher antioxidant activities of oat bran oil, used n-hexane and ethanol as extraction solvent were seleted as the extracting solvents. The effects of volume ratio of n-hexane to ethanol, mass ratio of extraction solvent to oat bran, extraction time and temperature on the yield and the antioxidant activities of oat bran oil were investigated. The result showed that the optimum extraction conditions of oat bran oil were volume ratio of n-hexane to ethanol 1∶1, the liquid-solid 8∶1 (V/m), extraction time 2 h, extraction temperature 50 ℃; In this condition, the yield and the IC50 of …
Isolation And Identification Of Polyphenols From Lens Culinaris Medik,
2016
College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; Tianjin Key Laboratory of Food Biotechnology, Tianjin 300134, China
Isolation And Identification Of Polyphenols From Lens Culinaris Medik, Liu Xiangyu, Zhao Pei, Yan Yali, Liu Jianfu, Chen Qingsen
Food and Machinery
Using organic solvent method to extract polyphenols in lentils, the extraction process was optimized by making response surface experiment. Results of the study indicated that, when the mass ratio of solid and solvent was 190︰1 (V︰m); the temperature was 82.60 ℃; the concentration of acetone was 12.96%, a better extraction effect could be obtained, and the average extraction rate could reach 26.94%(m/m). High performance liquid chromatography (HPLC) analysis has showed that the polyphenols of lentils which extracted by this method were mainly composed of vanillin, p-coumaric acid, rutin and quercetin.
Optimization Of Fermentation Conditions For Preparation Of Antioxidant Peptides From Yak Blood Antioxidant Peptides With Bacillus Subtilis,
2016
College of Food, Sichuan Agriculture University, Ya’an, Sichuan 625014, China
Optimization Of Fermentation Conditions For Preparation Of Antioxidant Peptides From Yak Blood Antioxidant Peptides With Bacillus Subtilis, Du Xin, Xiao Lan, Li Cheng, Wen Xin, Tian Tian, Zhou Hengliang, Song Likun, Liu Jing, Fan Yinyi
Food and Machinery
In order to optimize fermentation conditions for production preparation of Yak blood antioxidant peptides with Bacillus subtilis, ·OH scavenging rate was taken as index to analyze the effects of fermentation time, inoculum concentration, substrate concentration on the antioxidant result with response surface methodology. The optimum fermentation conditions were determined as followsfollowed: 75 g/L of substrate concentration, 69.5 h of fermentation time, 2.5%(V/V) of inoculum concentration. Under such conditions, the ·OH scavenging rate was 74.48%, which was close to the theoretical value of 75.77%. Eventually, the content of peptides in fermented supernatant was 2.31 mg/mL.
Effects Of Transglutaminase On Qualities Of Buckwheat Noodles,
2016
Collaborative Innovation Center for Food Safety and Quality Control, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Effects Of Transglutaminase On Qualities Of Buckwheat Noodles, Wei Xiaoming, Guo Xiaona, Zhu Kexue, Peng Wei, Zhou Huiming
Food and Machinery
Addition of transglutaminase (TG) was used to improve the quality of buckwheat noodles. The effect of TG on the water absorption, cooking loss, texture properties and microstructure of buckwheat noodles was investigated, as well as protein polymerization and the mechanism impacting on the quality of noodles by SDS—PAGE and SE—HPLC. The results indicated that addition of TG significantly (P < 0.05) decreased the water absorption and cooking loss of noodles, increased the hardness and tensile force. When adding 0.01% TG, the lowest cooking loss of buckwheat noodles was obtained. In addition, with the increase of TG, RVA viscosity properties of buckwheat noodle flour increased except for breakdown. Furthermore, an obvious decrease in the intensity of the protein bands with lower molecular weight was observed in SDS—PAGE patterns and the SDS extractable protein decreased, which demonstrated that TG promoted the protein cross-linking in the buckwheat noodles. And a tight and continuous protein network was observed by CLSM, which made the starch granules be well embedded in it and thus impacted the quality of buckwheat noodles.
Study On Stability Of Monascus Pigment In Production Process Of Red Sweet Rice Wine,
2016
Academe of Life Science and Agriculture, Qiannan Normal College for Nationalities, Duyun, Guizhou 558000, China
Study On Stability Of Monascus Pigment In Production Process Of Red Sweet Rice Wine, Li Yongbo, Xiao Guoxue, Ma Yuan
Food and Machinery
Monascus-rice was prepared through solid-state fermentation, and red pigment was extracted in nature . Taking the color value as the index, the effects were studied, including light, temperature, heating time and metal ions on the stability of Monascus pigment. The results showed: The order of the lighting effect on the stability of Monascus pigment was: Light > UV >dark. The influence of light on the stability of Monascus pigment was the most obvious; In addition, with the increasing of temperature, the stability of Monascus pigment was worse. Meanwhile, with the longer heating time, the color value loss was more. Among metal …
Study On Problems And Suggestions From The Development Of China Food Industry Tourism——An Analysis Of Changsha Food Industry Tourism,
2016
Hunan Internation Economic University, Changsha, Hunan 410205, China
Study On Problems And Suggestions From The Development Of China Food Industry Tourism——An Analysis Of Changsha Food Industry Tourism, Zhu Fang
Food and Machinery
Development of Chinese food industry tourism nowadays possesses a series of advantages and profound necessity. Facing good prospects, food industry tourism yet confronts problems from of the development environment, concept, design of product development, and team construction. Through analyzing the food tourism mode of Changsha, in the future, developing food tourism needs explore useful ways on policy, environment, products and staff.
Progress On Modification Of Carbon Nanotubes And Applications In Food Detection,
2016
Faculty of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Progress On Modification Of Carbon Nanotubes And Applications In Food Detection, Wang Kun, Li Zhonghai
Food and Machinery
Carbon nanotube (CNT) is a new material of nano-carbon materials. In this paper, it describes the non-covalent and covalent modification methods of carbon nanotubes, and its application in the field of pesticide and veterinary drug residues, heavy metals testing, food additives testing and detection of genetically modified foods, and its development direction in the field of food testing was discussed.
Toxicological Evaluation On Safety Of Hemp Seed Oil,
2016
College of Light Industry and Food Science, South China University of Technology, Guangzhou, Guangdong 510640, China
Toxicological Evaluation On Safety Of Hemp Seed Oil, Wei Yueyuan, Li Li
Food and Machinery
The acute toxicity test, genotoxicity and subchronic oral toxicity of hemp seed oil were investigated. Results indicated that LD50 from the acute toxicity test of mouse was higher than 40 mL/kg. The negative results were showed in Ames test, micronucleus test of bone marrow and sperm abnormality test. No significant differences were found in body weight, food efficiency and blood endpoint values between testing groups and control group. Furthermore, the values of serum biochemical endpoints separately fell into the ranges of their normal specific concentrations. An absence of histological changes in rat organs was observed. It is concluded that …
Isolation, Identification And Biological Characteristics Of A Bacteriocin-Producing Lactic Acid Bacteria Strain Isolated From Fermented Soybean Processing Wastewater,
2016
Department of Biological and Chemical Engineering, Shaoyang University, Shaoyang, Hunan 422000, China; SoybeanProcessing Techniques of the Application and Basic Research Base in Hunan Province, Shaoyang, Hunan 422000, China
Isolation, Identification And Biological Characteristics Of A Bacteriocin-Producing Lactic Acid Bacteria Strain Isolated From Fermented Soybean Processing Wastewater, Yin Lebin, Zhang Chenfei, Sun Jing, Kong Xiaoting, Xia Qiuliang, Zhou Xinxing, Du Yan, Lai Han, Zhao Liangzhong
Food and Machinery
A bacteriocin-producing lactic acid bacteria strain designated as NLB-3 was isolated from natural fermentation broth of a soybean plant. By excluding the disturbances of organic acids and H2O2 to antibacterial activity of indicator bacteria, and after the fermentation broth protein stability analysis, the antibacterial substance was determined as bacteriocin. On the basis of the colonies, cells morphology, dissolved calcium circle, physiological and biochemical characteristics, strain NLB-3 was preliminary identified as Lactobacillus sp.. The biological characteristics of strain NLB-3 showed that, its optimum growth temperature was at 35 ℃, after 16 hours fermentation, the pH value reached 3.45 …
