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Articles 120931 - 120960 of 255951

Full-Text Articles in Life Sciences

Dynamic Characteristics Of Quick Actuating Valve Of Expangding Machine, Ma Li, Sun Guoyou, Fang Shuqi, Bai Jing Sep 2016

Dynamic Characteristics Of Quick Actuating Valve Of Expangding Machine, Ma Li, Sun Guoyou, Fang Shuqi, Bai Jing

Food and Machinery

No abstract provided.

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Design Of Automatic Steam Control Of Integrated Processing Device For Fish Noodle, Cheng Hong, Jiang Zhigang, Fan Zhuo, Xiang Peng Sep 2016

Design Of Automatic Steam Control Of Integrated Processing Device For Fish Noodle, Cheng Hong, Jiang Zhigang, Fan Zhuo, Xiang Peng

Food and Machinery

A fish noodles integrated processing device, with steam volume controlled automatically, was designed in this study. Using this device, the thickness of fish noodles and operation speed could be detected real-timely. A least square method was used to calculate the corresponding steam volume, and then a smart the intelligent control of steam was realized. Simultaneously, the automatic operation of pressuring, steaming and cutting was integrated, by using motor-driven transmission shaft, and then transmission belt was driven to run fish noodle. The fish noodles device could ensure the quality of fish noodle processing and provide technical support for both the producing …

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Design Of Needle-Typed Moisture Content Detecting Instrument Of Grains, Wang An, Wu Yang, Liu Quan Sep 2016

Design Of Needle-Typed Moisture Content Detecting Instrument Of Grains, Wang An, Wu Yang, Liu Quan

Food and Machinery

In order to enhance the speed and precision of grain moisture content measurement, and to satisfy the need of online detection of drying machinery, a new symmetric needle typed moisture content sensor which direct thrust into the grain was proposed, which was cooperated with high precision testing circuit and optimization algorithm, and the corresponding new equipment was designed. The trial results indicated that the error of paddy moisture content measurement was no more than 1% and the response time was less than 2 s. Through simple parameters setting, this equipment could be applied to measure moisture content of other grains. …

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A Design Of Transfer Robot Based On Electro-Pneumatic Controlling Technologies, Qian Min, Zhang Xingguo Sep 2016

A Design Of Transfer Robot Based On Electro-Pneumatic Controlling Technologies, Qian Min, Zhang Xingguo

Food and Machinery

A type of transfer robot was designed based on electro-pneumatic controlling technologies and module structure combination. Structure of the robot was explained in detail, and the corresponding draw for the working principle of the pneumatic system adopted valve island technology was analyzed. Furthermore, the control program and hardware of the control system were demonstrated. The electro- pneumatic transfer robot integrated the characteristics of cylindrical coordinates and polar (ball) coordinates, it can achieve 5 degrees of freedom movement.

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Improved Design And Application Of Loosening Feeder For Reconstituted Tobacco, Song Weimin, Zhang Jie, Wang Dong, Zhao Yongzhen, Li Chunguang, Yu Guodong Sep 2016

Improved Design And Application Of Loosening Feeder For Reconstituted Tobacco, Song Weimin, Zhang Jie, Wang Dong, Zhao Yongzhen, Li Chunguang, Yu Guodong

Food and Machinery

To solve paper-process reconstituted tobacco loose problem, a reconstituted tobacco feeder with automatic loosening function was designed, which was composed of an automatic loosening device, a control high roller schematic, a silo and an electronic control and security systems. Reconstituted tobacco was conveyed to the automatic loosening device via the feeding belt, the loosened tobacco entered silo discharge beltr, which could be adjusted according to the silo. The results of application showed that there was no obvious tobacco breakage, Compared with the traditional way, the loosen rate and medium rate raised by 0.8 and medium rate 2 percentage points, fragment …

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Development Of Man-Machine Interaction System For Product Modeling, Zhao Jing Sep 2016

Development Of Man-Machine Interaction System For Product Modeling, Zhao Jing

Food and Machinery

In view of designing experience and customization demand for the consumer, the man-machine interaction technology is applied in industrial product design and system development. With involute spur gears as a research example, parametric interaction design interface of gear product is developed which utilizing feature modeling, parametric function and secondary development technique of CREO tool. In the Visual Studio compile environment, can not only realized the editing, modification and reconstruction of the gear’s geometry model conveniently and quickly, but also improve the design efficiency and plasticity of the gear product. Through implement process exploring of the gear product’s operational mode of …

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Design Of Filter Error Prevention Supervising System, Li Yuliang, Zhu Liming, Qian Yongan, Zhang Lihong, Liu Wanli Sep 2016

Design Of Filter Error Prevention Supervising System, Li Yuliang, Zhu Liming, Qian Yongan, Zhang Lihong, Liu Wanli

Food and Machinery

In order to realize the real-time supervising of filter supply procedure, a filter error prevention system was development, based on WINCC, which integrated the technology of PLC, RFID and OPC. This system could show and supervise the whole procedure by data collection and analysis, realize the comparison of the status between the filter exchange center and the filter in use and transfer the monitoring pages to all terminal distributed nodes. The result showed that this system had realized error prevention of the whole filter applying procedure, and enhanced the level of lean management.

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The Designation Of Online Water Quality Monitoring System About The Water Purifier Based On The Internet Of Things, Diao Yifeng, Li Uliping, Chen Can, Yang Peigang, Chen Wei, Chen Qiong Sep 2016

The Designation Of Online Water Quality Monitoring System About The Water Purifier Based On The Internet Of Things, Diao Yifeng, Li Uliping, Chen Can, Yang Peigang, Chen Wei, Chen Qiong

Food and Machinery

The running information of water purification machines, including the temperature, flow rater, inlet pressure and some information related to filter quality of water was collected and analyzed in this study. In order to obtain these data real-timely, an acquisition system using ARM single chip microprocessor was designed based on embedded technology, and it could send the real time data of running state to the management information system in factory and the related users. The results showed that the system has such advantages as good real time, high cost performance and high reliability, therefore it could deal with the present problem …

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The Research Of The Packaging Design Process On Traditional Food, Tong Ling, Zhang Jian Sep 2016

The Research Of The Packaging Design Process On Traditional Food, Tong Ling, Zhang Jian

Food and Machinery

Analyzing and elaborating of the whole process of traditional food packaging design were reviewed. Our design conformed to the idea of green packaging and minimalism, as well as expressed both the traditional food culture and the design of industrialization circuit of the process. Moreover, the market position of traditional food was also analyzed. The traditional food was designed in accordance with the packaging style, material selection, structure optimization, visual language and so on. At the same time, we should implement and pay more attention to the packaging of traditional foods, and inherit the carrier function of traditional culture. We devoted …

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Effects Of Pre-Treatments On Storage Quality Of Blueberry, Zhang Haiwei, Zhang Xiaoqing, Zhang Yulu, Gao Xueling Sep 2016

Effects Of Pre-Treatments On Storage Quality Of Blueberry, Zhang Haiwei, Zhang Xiaoqing, Zhang Yulu, Gao Xueling

Food and Machinery

The effects of 60Co γ irradiation treatment, chlorine dioxide treatment, ozone gas treatment and pre-temperature treatment on the post-harvest quality of blueberry fruit at low temperature storage were investigated. In order to compare the effects of the four treatment methods on preserving blueberries physiological parameters such as fresh rate, weight loss rate, soluble solid content (SSC), value of chromatic aberration, polyphenol oxidase (PPO) were monitored periodically. The results showed that all of those four treatments can enhance the storage quality of blueberries in different degrees, and irradiation treatment show the best result in storage. It can significantly keep fresh …

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Analyses Of Formation Condition And Composition Of Candied Sweet Potato White Spot, Chen Jingping, Wang Keqin, Wu Xiaofen, Chen Liang, Hu Die, Qi Hui Sep 2016

Analyses Of Formation Condition And Composition Of Candied Sweet Potato White Spot, Chen Jingping, Wang Keqin, Wu Xiaofen, Chen Liang, Hu Die, Qi Hui

Food and Machinery

In order to explore chemical composition and the causes of candied sweet potato white spot under different conditions, the composition were analyzed by scanning electron microscopy, fourier transform infrared spectroscopy and ion chromatography, and the case of produced white spot of candied sweet potato in different storage were also studied. The results showed that the reducing sugar and total sugar contents of candied sweet potato white spot were 636.76 mg/g and 961.34 mg/g, respectively. Mainly the sugar composed of galactose, glucose, fructose and galacturonic acid. After storage 150 d at 25 ℃, it was found that nitrogen packing most conducive …

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Mechanism And Inhibitory Effect Of P-Hydroxybenzoic Acid On Anthracnose In Postharvest Citrus, Huang Xiaolan, Ge Zhixing, Wang Rikui, He Mingyang, Han Leng, Zhou Lian Sep 2016

Mechanism And Inhibitory Effect Of P-Hydroxybenzoic Acid On Anthracnose In Postharvest Citrus, Huang Xiaolan, Ge Zhixing, Wang Rikui, He Mingyang, Han Leng, Zhou Lian

Food and Machinery

To explore the antifungal activity and potential mechanism of p-Hydroxybenzoic acid against Colletotrichum gloeosporioides in postharvest Citrus. The addition of p-HBA in-vitro and in-vivo was conducted to test the inhibitory effect. Dynamic changes of peroxidase (POD), polyphenoloxidase(PPO), Superoxide Dismutase (SOD), Ammonia-lyase (PAL)activity and the content of Malondialdehyde(MDA) with different treatment was studied in postharvest citrus. p-HBA displayed strong antifungal activity to C.gloeosporioides，when the concentration was higher, the effect was increased. The value of EC50 is 0.056 mg/mL. The activities of PPO, POD, SOD and PAL were increased when inoculated with p-HBA and C.gloeosporioides, while the content of MDA was …

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Study On Inhibiting Effect On Egg Hatching In Grain Storage By Using Microwave Irradiation, Liu Jinguang, Xiong Xubo, Wang Shiqing, Zhang Yan, Jiang Wenli Sep 2016

Study On Inhibiting Effect On Egg Hatching In Grain Storage By Using Microwave Irradiation, Liu Jinguang, Xiong Xubo, Wang Shiqing, Zhang Yan, Jiang Wenli

Food and Machinery

In order to solve the pollution problems of chemical fumigation pest which commonly used in grain storage currently, based on the principle of thermal physics, microwave irradiation was used to inhibit egg hatching in grain. Through changing the microwave power and irradiation time, the relationship between the factors including microwave properties, grain temperature and grain vigor, and hatchability of eggs were found. The results showed that the effect depth of microwave was 7-10 cm, and the best time of irradiation was 90 s at 1 kW and 60 s at 2 kW, with no change on the grain appearance. Moreover, …

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Effect Of Water Extract From Flos Chrysanthemi Indici On Heat Tolerance Of Drosophila Melanogaster, Zheng Yixin, Li Yijun, Lin Pu, Kong Xiangjia, Xie Yong Sep 2016

Effect Of Water Extract From Flos Chrysanthemi Indici On Heat Tolerance Of Drosophila Melanogaster, Zheng Yixin, Li Yijun, Lin Pu, Kong Xiangjia, Xie Yong

Food and Machinery

In order to investigate the effect of water extract from Flos Chrysanthemi Indici (WE-FCI) on the heat tolerance of organism, drosophila melanogaster was feed with 1%, 3%, 5%, 7% WE-FCI, respectively, to conduct heat exposure test and heat acclimatization test. The results showed: In heat exposure test, WE-FCI could significantly prolong the median lethal time (LT50)、the average survival time (T)and the maximum survival time (Tmax) of female drosophila melanogaster, which were compared to HE-control group; When the concentration of WE-FCI was ≥3%, it would improve the heat tolerance of male drosophila melanogaster. Under heat acclimatization …

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The Study Of Rough Flavones Components Extracted From The Rape Bee Pollen, Wang Mansheng, Zeng Xinan, Xiong Xiayu, Dai Qiuzhong Sep 2016

The Study Of Rough Flavones Components Extracted From The Rape Bee Pollen, Wang Mansheng, Zeng Xinan, Xiong Xiayu, Dai Qiuzhong

Food and Machinery

In order to clarify the flavonoids compositions of rape bee pollen and evaluate the assisted extraction effect for pulsed electric field (PEF), the ethanol extract of rape bee pollen and its acidolysis component were analyzed in detail by the method of TLC—DPPH and HPLC in this paper. The results showed that the quercetin and kaempferol in the ethanol extract of rape bee pollen could not be detected for their low contents. However, a large number of quercetin and kaempferol were generated after the acidolysis of ethanol extract, and this implied that the flavonoids compositions of rape bee pollen mainly existed …

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Optimization On Ultrasound-Assisted Extraction Process Of Crude Polysaccharide From Bulbil, Ren Jiali, Huang Rengui, Li Zhonghai Sep 2016

Optimization On Ultrasound-Assisted Extraction Process Of Crude Polysaccharide From Bulbil, Ren Jiali, Huang Rengui, Li Zhonghai

Food and Machinery

Response surface analysis was proposed to optimize the ultrasound-assisted extraction process of crude polysaccharides from bulbils. The effects of solid-liquid ratio, ultrasonic power and extraction time on crude polysaccharide yield were investigated by single factor experiments. Response surface analysis was carried out by using the crude polysaccharide yield as response value and the box Behnken method to design the experiments. The optimum extraction conditions were obtained as follows: solid-liquid ratio, 18∶1 (mL/g), ultrasonic power, 760 W; extraction time, 23 min and the crude polysaccharides yield could be up to 60.68%, which agreed with the predicted value (the relative error is …

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Optimization Of Microwave-Assisted Extraction Of Polysaccharide From Fortunella Margarita (Lour.) Swingle And Its Antibacterial Effect, Zeng Hongliang, Huang Cancan, Chang Qing, Xu Wenyan, Zhang Yi, Zheng Baodong Sep 2016

Optimization Of Microwave-Assisted Extraction Of Polysaccharide From Fortunella Margarita (Lour.) Swingle And Its Antibacterial Effect, Zeng Hongliang, Huang Cancan, Chang Qing, Xu Wenyan, Zhang Yi, Zheng Baodong

Food and Machinery

In order to investigate the optimum technology of microwave-assisted extraction of polysaccharide from Fortunella margarita (Lour.) Swingle and its antibacterial abilities, the effects of single factors on the yield of polysaccharide were evaluated in this paper. On the basis of these single factor experiments, the extraction technology was optimized by response surface methodology, and then its antibacterial effect was studied. The results showed that the optimum technology conditions were as follows: microwave power of 460 W, microwave time of 8.4 min, ratio of water volume to raw material weight (W/M ratio) of 38 mL/g and particle size of 60 mesh …

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Separation Of Citral From Litsea Cubeba Oil By Phase Transfer Catalysis, Fu Hongjun, Peng Xianglian, Kuang Chuntao, Zhong Haiyan Sep 2016

Separation Of Citral From Litsea Cubeba Oil By Phase Transfer Catalysis, Fu Hongjun, Peng Xianglian, Kuang Chuntao, Zhong Haiyan

Food and Machinery

Randomly methylated- β-cyclodextrin (RM-β-CD) was used as phase transfer catalysis to separate citral from Litsea cubeba oil by addition reaction and hydrolysis reaction. The optimum separation conditions were obtained by single factor experiment design and Box-Behnken experiment design. The purity and yield of citral were 96.50% and 86.60%, respectively, which was gotten under the optimum conditions of reaction time 3.3 h, RM-β-CD amount 0.65% (molar fraction) and reaction temperature 15.0 ℃. Predicted value was in accordance with actual value. This proposed method was used to separate citral from Litsea cubeba oil with convenient and had high efficient advantages.

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Optimization Of Ultrasonic Assisted Cellulase Extraction Process Of Pleurotus Ostreatus Polysaccharide By Uniform Design, Zhang Xiao, Zhu Caiping, Deng Hong, Li Yun, Zhang Yang, Hu Changyao Sep 2016

Optimization Of Ultrasonic Assisted Cellulase Extraction Process Of Pleurotus Ostreatus Polysaccharide By Uniform Design, Zhang Xiao, Zhu Caiping, Deng Hong, Li Yun, Zhang Yang, Hu Changyao

Food and Machinery

The Ultraction-cellulase synergistic extraction process of pleurotus ostreatus polysaccharide (POP) was optimized by uniform design method. Extraction temperature, pH, solvent/material ratio, cellulase dosage, enzymolysis time, ultrasonic power and ultrasonic time were selected to carry out the single factor tests. According to the experimental results, better levels of these factors were chosen to implement the U18 (95×62) mixed uniform design experiment to optimize the technology. The effects of the seven single factors as well as their interactions on the POP yield were investigated. The optimal process parameters were predicted and verified by using regression analysis. The …

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Optimization On Ultrasound-Assisted Extraction Of Polyphenols From Red-Flesh Apple By Response Surface Methodology, Qi Na, Li Han, Zhang Zhiyu, Deng Hong, Hu Yan, Guo Yurong, Meng Yonghong Sep 2016

Optimization On Ultrasound-Assisted Extraction Of Polyphenols From Red-Flesh Apple By Response Surface Methodology, Qi Na, Li Han, Zhang Zhiyu, Deng Hong, Hu Yan, Guo Yurong, Meng Yonghong

Food and Machinery

[Objective] Response surface methodology was used to optimize the extraction process condition of polyphenols from red-flesh apple with ultrasonic assistance. [Method] Using the red-flesh apple of XINJIANG as material, on the basis of single-factor experiment, four factors, inclouding extraction time, ultrasonic power, extraction temperature and ratio of material-to-liquid were chosed to design the experiment with response surface method. With Box-Behnken design and response surface analysis, the optimum extracting conditions of polyphenols from red-flesh apple were determined. [Result] The optimal process parameters of polyphenol extraction were determined and they were as follows: extraction time and temperature were 20 min and 62 …

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The Optimization Of Ultrasonic Assisted Extraction Of Pigment From Peanut Skin, Luo Xuan, He Jing Sep 2016

The Optimization Of Ultrasonic Assisted Extraction Of Pigment From Peanut Skin, Luo Xuan, He Jing

Food and Machinery

Using the response surface method, the process conditions of ultrasonic-asssisted extraction peanut red pigment from the peanuts red skin was optimized. Based on the single factor experiment, Plackett-Burman experiment design and the steepest ascent experiment, with peanut red pigment comprehensive extraction effect value as a response, using the response surface method studied the factors and their interactions of peanuts red pigment extraction effect, the prediction model was established. The results showed that the optimun conditions for ultrasonic assisted extraction of peanut red pigment are as follows: ethanol as solvent, ethanol concentration 68%, solid-liquid ratio 1∶30 (g/mL), working at 55 ℃ …

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Influence Of Enzymatic Extrusion Of Corn Starch On Preparation Of Isomalto-Oligosaccharides, Ge Jie, Wu Chunsen, Wang Ying, Wang Ren, Jin Zhengyu, Xu Xueming, Jiao Aiquan, Zhou Xing Sep 2016

Influence Of Enzymatic Extrusion Of Corn Starch On Preparation Of Isomalto-Oligosaccharides, Ge Jie, Wu Chunsen, Wang Ying, Wang Ren, Jin Zhengyu, Xu Xueming, Jiao Aiquan, Zhou Xing

Food and Machinery

The treatment of corn starch by adding enzyme extrusion technology as material to produce isomalto-oligosaccharide. With the sum content of isomaltose (IG2), panose (P) and maltotriose (IG3) as the yield index of isomalto-oligosaccharide, the parameters were optimized by orthogonal experiment, and the optimum processes for production of ismalto-oligosaccharide from corn starch with enzymatic extrusion were as followed: the extrusion temperature 95 ℃, the water content 45%, and the amount of enzyme 0.8%. And the yield of the ismalto-oligosaccharide with the highest yield could reach over 35%.

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Preparation And Characters Of Edible Film From Soy Protein Isolate, Dong Zeng, Sun Pengpeng, Wang Haichao, Gao Guizhen, Cao Wengen Sep 2016

Preparation And Characters Of Edible Film From Soy Protein Isolate, Dong Zeng, Sun Pengpeng, Wang Haichao, Gao Guizhen, Cao Wengen

Food and Machinery

The new biomaterials were produced by soy protein isolate (SPI) as base material. The effects of film property such as film integrity, thickness, light transmittance, water soluble, water vapor permeability (WVP) and oil permeability (PO) were investigated by film forming conditions included SPI content, ethanol content, plasticizer (glycerol), reducing agents (Na2SO3), temperature, pH value of film-forming reagent and medium. With more addition of SPI concentration between 2% to 6%, it was more likely to form film, while the thickness, WVP, and PO of films increased and the film became dark. With no more than 2% addition …

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Effect Of Different Drying Methods On Sensory Quality Of Upper Flue-Cured Tobacco Leaves, Li Dan, Li Huanwei, Zhao Reifeng, Ye Rongfei, Luo Fuming Sep 2016

Effect Of Different Drying Methods On Sensory Quality Of Upper Flue-Cured Tobacco Leaves, Li Dan, Li Huanwei, Zhao Reifeng, Ye Rongfei, Luo Fuming

Food and Machinery

Effects of five different drying methods on sensory quality of upper flue-cured tobacco leaves were investigated. The flavor notes, aroma characteristics, smoke characteristics and taste characteristics (containing 21 subindices) of cigarette were measured. The positive and negative indicators were also analyzed to evaluate the sensory quality of upper flue-cured tobacco leaves with different drying methods. The results indicated that (1) casing proeess could significantly improve the sensory quality of upper flue-cured tobacco leaves; (2) The sensory quality subindices of upper flue-cured tobacco leaves significantly affected by drying method, partially relating to the pretreatment intensity and process complexity. The drum drying …

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Study On Sourdough Bread, Wang Li, Yu Yafang, Qian Haifeng, Zhang Hui, Qi Xiguang Sep 2016

Study On Sourdough Bread, Wang Li, Yu Yafang, Qian Haifeng, Zhang Hui, Qi Xiguang

Food and Machinery

The sourdough and its main microorganism, together with the preparation technology, properties and research status of this kind of bread both domestic and overseas, were introduced in the paper, hoping to provide a new clue for its development and promotion. Finally, a possible development tendency of sourdough bread was also forecasted.

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Research Progress On Preparation Of Nano-Starch And Its Application In The Preparation Of Edible Films, Zhou Yujia, Xiao Qian, Deng Fangming Sep 2016

Research Progress On Preparation Of Nano-Starch And Its Application In The Preparation Of Edible Films, Zhou Yujia, Xiao Qian, Deng Fangming

Food and Machinery

Nano-composite natural polymer based film not only have low energy consumption, ease the pollution to environment and the pressure on the dying up raw material of non-degradable synthetic material, but also realized the sustainable development of resources. Because of the enhancement of nano particles, the composite film shows more unique and excellent properties than conventional edible film, with low cost, rich available, regenerative and less pollution. Reviewed methods on the preparation of nano starch at home and abroad, including the, physical and chemical methods. Described the application in nano-composite edible films briefly, and summarized the researches on the improvement of …

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A Review About The Adsorption And Sustained Release Of Traditional Chinese Medicine Or Plant Active Components By Activated Carbon Nanoparticles, Zeng Zhaoyan, Li Xiangzhou, Zhang Sheng, Huang Dan Sep 2016

A Review About The Adsorption And Sustained Release Of Traditional Chinese Medicine Or Plant Active Components By Activated Carbon Nanoparticles, Zeng Zhaoyan, Li Xiangzhou, Zhang Sheng, Huang Dan

Food and Machinery

This review made a summary of the functions and types of activated carbon nanoparticles for sustained drug delivery system. The physical and chemical properties of activated carbon nanoparticles as the carrier of natural extractives and medicine were reviewed. The research progresses in activated carbon nanoparticles as the carrier of traditional Chinese medicine or natural extractives from plants have been summaried. The technical bottleneck in preparation and utilization of activated carbon nanoparticles as the active ingredient sustained-release were also analyzed.

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Innovative Path On Scientific English Teaching To Food Science Students Under The Framework Of Applied Talents Cultivation, Ren Wenlin Sep 2016

Innovative Path On Scientific English Teaching To Food Science Students Under The Framework Of Applied Talents Cultivation, Ren Wenlin

Food and Machinery

With the emphasis on the cultivation of applied talents and the rapid development of information technology and economic globalization, the scientific English teaching to food science students is facing the new challenge of our ages. To examine the current situation of scientific English teaching, there are still a lot of problems. The author suggests to improve awareness of the importance on the profession, ensure systematicness and advancement of teaching content, construct the learning mode of the scene type, introduce the multiple evaluation system as well as grasp the way and method of obtaining industry information and professional literature, to improve …

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Status Of Nondestructive Detection Methods On Chilled Pork Freshness And Prospect Of Thz Spectrum Inspection Technique, Qi Liang, Zhao Jie, Zhao Maocheng Sep 2016

Status Of Nondestructive Detection Methods On Chilled Pork Freshness And Prospect Of Thz Spectrum Inspection Technique, Qi Liang, Zhao Jie, Zhao Maocheng

Food and Machinery

This essay summarizes the application of visible/near infrared spectroscopy, electronic nose, electronic tongue, machine vision and multi-sensor fusion techniques in detecting chilled pork freshness rapidly and nondestructively. The feasibility of THz spectroscopy analysis method used in nondestructively detecting pork freshness attributes is predicted and analyzed by molecular spectroscopy combined with chemometrics.

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Preparation Of Starch-Graft-Poly (Vinyl Acetate) Nanoparticles And Effect On The Stability Of Astaxanthin, Liu Zhanjun, Li Xiaochun, Geng Xufang, Zhao Zan, Zhao Linlin Sep 2016

Preparation Of Starch-Graft-Poly (Vinyl Acetate) Nanoparticles And Effect On The Stability Of Astaxanthin, Liu Zhanjun, Li Xiaochun, Geng Xufang, Zhao Zan, Zhao Linlin

Food and Machinery

The starch-graft-poly (vinyl acetate) was prepared using potassium diperiodatonickelate (IV) as an initiator. Afterwards, it was produced into nanoparticles containing hydrophobic core and hydrophilic surface in water, using sodium tripolyphosphate as crosslinking agent. Then the nanoparticles loaded with astaxanthin were made by the dialysis method. IR spectra of the starch and the graft copolymer, the average particle size, particle size distribution, and morphology of the nanoparticles loaded with astaxanthin were measured. The stability of nanoparticles loaded with astaxanthin was determined with an acetone solution of astaxanthin as control. The results showed that the stability of the nanoparticles loaded with astaxanthin …

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