Food Science Commons^™

Progress On Application Research Of Fresh Ice For Aquatic Products Preservation, Wang Qian, Sun Xiaohong, Lan Weiqing, Zhang Wanjun, Xie Jing

Food and Machinery

Aquatic products are good resources of protein, inorganic salt and vitamin, which are tend to be deteriorated easily and affect the circulation of aquatic products. Fresh ice is one of the fresh-keeping methods with ice, such as ozone, electrolyzed water, bio-preservatives and electronic beam etc, so as to achieve the best effect of preservation. The application progress in fresh-keeping effects of aquatic products with traditional ice, ozone ice, slurry ice, electrolyzed water ice and bio-preservative ice were reviewed in this paper. The application of electronic beam and composite bio-preservative with ice were also introduced at the same time. The main …

Progress On Migration Of Uv Absorbers In Pet Packaging Materials, Zou Ping, Li Juan, Li Zhonghai

Food and Machinery

PET packaging materials was widely used in food packaging, a certain amount of the UV absorber were added in it for improving its Anti-light oxidation. As the same time, the long-term storage may lead to the migration of UV absorber. Therefore, the types and the migration principle of UV absorbers in PET packaging materials, the domestic and foreign related transfer were summarized.

Application Of Detection In Food Adulteration By Using Rapid Optical Analysis Technology, Wang Long, Zhu Rongguang, Dua Nhongwei, Xu Weidong

Food and Machinery

The rapid optical analysis technology, which is a fast and nondestructive testing technology, has been widely used. This essay summarizes the application of Near infrared spectroscopy, Raman spectroscopy and Hyperspectral imagimg techniques in detecting adulterated food, including, but not limited to, dairy products, edible oil and meat. This review also proposes the existing technical problems in the present stage of optical fast analysis methods and looks forward into the future of the technology.

Research Progress On Determination Of Total Polyphenols In Grape And Wine, Niu Xue, Zhang Junxiang, Xu Guoqian

Food and Machinery

Phenols are the main components of wine and important, and are the major function substance on health care. Thus, accurate determination of total content of phenolic compounds in wines has important effect on health care and wine quality judgment. The paper summarizes potassium permanganate method, Folin-Ciocalteu, Prussian Blue assay, vanillin-hydrochloric acid (sulfuric acid), high performance liquid chromatography, and protein precipitation assays, and compares and analyze advantages and disadvantages of above methods to provide a reference for the research of ways in screening and optimizing detection of total phenols contents of wines.

Study On Screening Of High Lipase-Producing Strain And Conditions For Enzyme Production, Zhao Xingxiu, Zhao Changqing, He Yiguo, Zou Wei, Zhang Jing

Food and Machinery

16 samples were obtained from 8 sample points such as the soil of oil mill, restaurant, lampblack absorber. 9 strains were gotten by primary screening with bromocresol purple plate and secondary screening with shaking flask fermentation, and a strain, which producing lipase with 12.9 U/mL was determined original strain. By single factor and orthogonal experiment the optimum condition for high lipase-producing of the strain A7 was obtained, which was soybean oil 5 g/L, peptone 20 g/L, MgSO4·7H2O 0.4 g/L, pH 6.0, culture temperature 30 ℃, rotation speed 200 r/min. The enzyme activity of strain A7 was 19.8 U/mL under the …

Effects Of Structural Parameters On Volume Flux And Correction Factor Of Jet Of Nozzles Used Lubricating Gears, Zhou Fang, Liu Shaojun, Zhang Ruiqiang, Lin Ling

Food and Machinery

In order to study the effects of structural parameters on volume flux and correction factor of jet of nozzles used lubricating gears, single phase flow model of the jet flow field of three dimensional nozzles is simulated by employing the Large Eddy Simulation based on the FLUENT. The rationality of the simulation results of the single phase flow model of jet flow field of three dimensional nozzles were demonstrated by the volume flux of jet oil measured by the method of weighting jet oil. The results indicate that the volume flux of jet is influenced by the orifice diameter, the …

Design And Analysis Of A New Automatic Vending Machine, Liu Haigang, Wang Gang, Gao Jianbiao

Food and Machinery

A new automatic vending machine was designed. The principle of the selecting and pushing of vending machine was introduced, and the three dimensional model was established. The software ADAMS was used to carry out dynamic simulation and optimization analysis. The vending machine can transport the goods to outlet rapidly and steadily. When the pushing velocity was kept at the speed of 150 mm/s left and right, the goods have low wiggle and high stability, and it can provide the experimental basics for the practical design. In the case of equal occupancy area, comparing to the height of the market vending …

Visual Design Of Three Dimensional Potato Vertical Peeling Machine Based On Solid Works, Miao Hongtao, Xia Jingjing

Food and Machinery

With the times development, people pays more attention to the food processing industry. Analyzed the wording principles and efficiency of the formal potato peeling machine by Solid Works a three-dimensional simulation, and based on the formal pelling process, an new vertical peeling machine was designed which had a continuous potato peeling recycle system, including elaborated preparing，washing, peeling processing and unloading. It could greatly reduces the manual links, and improved the efficiency of potato peeling. The visual simulation of potato peeling was finished by Solid Works software.

Effects Of Transport Vibration On Storage Quality Of Hami Melon, Zeng Yuanyuan, Wang Xichang, Zhou Ran, Song Zhewen, Xie Jing, Zhou Yan

Food and Machinery

In order to study the effect of transport vibration on storage quality of Hami melons (Cucumis melo var. saccharinus), transport vibration of semi-trailer was simulated. The melons treated by transport vibration was compared with the untreated melons while melons were stored 28 d at room temperature (23 °C). The result showed that: when stored at 28 d, respiration rate of vibration-treated melons was higher than untreated, it was indicated that the transport vibration will accelerate respiration rate and after-ripening, accelerate aging, and the rate of decrease in hardness, speed up the generation of MDA and membrane lipid oxidation, thereby the …

Extraction Of Artemisia Argyi Volatile Oil With Microwave-Assisted Enzyme Method, Yi Xuejing, Liu Gang, Gong Zhengwu

Food and Machinery

Microwave-assisted enzyme method was adopted to improve the extraction ratio of Artemisia argyi volatile oil, the effects of enzyme extraction time, temperature, and microwave power on the extraction ratio had discussed. The extraction process was optimized with orthogonal experiment, and the ingredient of Artemisia argyi volatile oil had analyzed. The results showed that the microwave-assisted process had the benefit to get a higher extraction ratio as 60 min enzyme extraction time, 45 ℃ enzyme extraction temperature, 10 min microwave processing time, 250 W microwave power, 0.9% cellulase dosage and pH 4.0 buffer solution. The average extraction ratio was 3.61% which …

Infrared Heating Technology And Its Application In Food Sterilization, Wen Jiaxiong

Food and Machinery

Infrared heating technology has been widely used in the food industry, which has a very important significance for food sterilization, improve quality and improve the health of food. Meanwhile introduces the working principle of infrared heating technology, the characteristic as well as the influence on the main components of food, and summarizes the application of infrared heating technology in food industry, with examples, of infrared heating technology in food sterilization and other areas of application and research progress of the analysis.

Advances On Methods To Control Fungal Diseases Of Alternaria Spp In Postharvest, Huang Wei, Feng Zuoshan, Bai Yujia, Zhang Peiling, Zheng Feng

Food and Machinery

Alternaria Spp is a fungi, which can cause a variety of postharvest fruit to disease and the serious loss in every year, so prevention and control of postharvest fruit diseases by Alternaria is particularly important and urgent for now. This article will especially introduce research on method against postharvest fruits Alternaria fungi disease including control at preharvest and post harvest of physical, chemical and biological methods, as well as their mutual combination in domestic and aboard. Then put forward that the combination of new and effective way should be taken to improve the control effect in the future, to enhance …

Synthesis, Isolation, And Characterization Of Potentially Carcinogenic Arginine-Based Heterocyclic Amines, Zachary Reichert

Honors Theses

Previous research demonstrates that meat cooked at high temperatures produces heterocyclic amines (HCAs)—a class of carcinogenic molecules—from burned creatin(in)e and amino acids. However, research performed in our lab, as well as in the peer-reviewed literature, suggests that substituting arginine for creatin(in)e may lead to HCA formation. Arginine is structurally similar to creatin(in)e and can be found abundantly in soy-based food products. Therefore, we have burned arginine and phenylalanine to investigate the potential formation of arginine-based HCAs. The present study attempts to isolate and characterize these potential arginine-HCAs.

Food Processing In Haiti, Maggie R. Del Ponte

Engagement & Service-Learning Summit

No abstract provided.

Hunger Doesn't Take A Spring Break, Jessica Isaacs

Engagement & Service-Learning Summit

The rates of food insecurity amongst Hoosier children is slightly above the national average. For many of these children, school lunches are their primary source of nutrition. During school breaks, these children are at risk of going hungry. While Purdue Nutrition Society wishes that we could help all Hoosier children stay fed with nutritious meals, for now we are focusing on helping 20 local elementary students most at risk of going hungry over spring break. Working with Glen Acres Elementary in Lafayette, Indiana, a school where in 2014, over 71% of the students qualified for free or reduced lunches, we …

Automatic Food Expiration Notification System, Nikolas-Viktor P. Doukas, Ozan Celebi, Lindsey E. Colgrove, Michael D. Werner, Tre Commings, Christopher M. Zatek, Daniel E. Odihi

Engagement & Service-Learning Summit

No abstract provided.

Analysis Of Johne's Disease Elisa Status And Associated Performance Parameters In Irish Dairy Cows, A. E. Kennedy, N. Byrne, A. B. Garcia, Jim O'Mahony, R. G. Sayers

Department of Biological Sciences Publications

Background

Infection with Mycobacterium avium subspecies paratuberculosis (MAP) has been associated with reductions in milk production in dairy cows and sub optimal fertility. The aim of this study was to highlight the production losses associated with testing MAP ELISA positive in Irish dairy cows. Secondary objectives included investigation of risk factors associated with testing MAP ELISA positive. A survey of management practices on study farms was also conducted, with examination of associations between management practices and herd MAP status.

Blood samples were collected from 4188 breeding animals on 22 farms. Samples were ELISA tested using the ID Screen Paratuberculosis Indirect …

Analysis Of Johne’S Disease Elisa Status And Associated Performance Parameters In Irish Dairy Cows, A. E. Kennedy, N. Byrne, A. B. Garcia, Jim O'Mahony, R. G. Sayers

Department of Biological Sciences Publications

Infection with Mycobacterium avium subspecies paratuberculosis (MAP) has been associated with reductions in milk production in dairy cows and sub optimal fertility. The aim of this study was to highlight the production losses associated with testing MAP ELISA positive in Irish dairy cows. Secondary objectives included investigation of risk factors associated with testing MAP ELISA positive. A survey of management practices on study farms was also conducted, with examination of associations between management practices and herd MAP status.

Blood samples were collected from 4188 breeding animals on 22 farms. Samples were ELISA tested using the ID Screen Paratuberculosis Indirect Screening …

Use Of The Mitochondrial Control Region As A Potential Dna Mini-Barcoding Target For The Identification Of Canned Tuna Species, Jacquelyn K. Mitchell, Rosalee S. Hellberg

Food Science Faculty Articles and Research

In this study, a DNA mini-barcoding methodology was developed for the differentiation of species commonly found in canned tuna. Primers were designed to target a 236-base pair (bp) fragment of the mitochondrial control region (CR) and a 179-bp fragment of the first internal transcribed spacer region (ITS1). Phylogenetic analysis revealed the ability to differentiate 13 tuna species on the basis of the CR mini-barcode, except in a few cases of species introgression. Supplementary use of ITS1 allowed for differentiation of introgressed Atlantic bluefin tuna (Thunnus thynnus) and albacore tuna (Thunnus alalunga), while differentiation of introgressed Atlantic …

Breadtalk: Managing An Expanding Brand Portfolio, Singapore Management University

Perspectives@SMU

The Singapore-based company has expanded into foodcourts and restaurants in 17 countries. How can it manage its burgeoning portfolio of brands?