Food Science | Open Access Articles | Digital Commons Network™

Tanya Dube, Tanya Dube, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Tanya Dube was born and raised in Massachusetts, and after high school joined the military, serving in the U.S. Marine Corps. She is now a school food service manager in Alaska.

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Johanna Herron, Johanna Herron, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Johanna Herron works with the Alaska Department of Education and Early Development to promote the Farm to School Program.

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Elizabeth E. Edelman, Elizabeth E. Edelman, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

An Anchorage, Alaska native, Elizabeth E. Edelman has worked in numerous areas of school nutrition in Alaska, and now is working as the food service manager in the head cook program in the Valdez district.

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Lori Buzzell, Lori Buzzell, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Lori Buzzell worked for seven years in the Juneau, Alaska school nutrition program and now works in curriculum development, including incorporating a wellness policy into the school physical education programs.

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Debbie Kallio, Debbie Kallio, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Debbie Kallio was a 2016 Regional Director for the School Nutrition Association for the Northwest Region.

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James L. Jones, James L. Jones, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

A South Carolina native, James L. Jones spent twenty-three years in the Air Force before retiring and going to work for the Alaska Military Youth Academy, where he has been for the past twenty years, where in addition to several other responsibilities he manages the child nutrition program.

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Jo Dawson, Jo Dawson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

A lifelong Alaskan, Jo Dawson attended fifteen different schools growing up, as her family followed he father’s career as a state trooper. Having worked as the National School Lunch Program Coordinator, the Child and Adult Care Food Program Coordinator, and the USDA Foods Coordinator, she now is the Alaska State Director for nutrition programs.

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Walter D. Williams, Jr., Walter D. Williams, Jr., Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Born in Alabama and reared in Florida, Walter D. Williams, Jr., then joined the U.S. Air Force and served twenty years all over the world before retiring and settling in Alaska. He now works as a nutrition specialist in rural Alaska.

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Lydia Wirkus, Lydia Wirkus, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Lydia Wirkus, a Florida native, grew up in the Miami area, near the Everglades. After college at Florida State, she taught for a few years in Miami, and then earned a master’s degree. One day she woke up and decided she didn’t want to live in Miami anymore, and that it would be cool to move to Alaska, so she drove from Miami to Alaska and taught for a few years. After earning a second master’s in nutrition at the University of North Carolina in Greensboro, she returned to Alaska and worked for a while in child nutrition, before returning …

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Adrianne Schwartz, Adrianne Schwartz, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Adrianne Schwartz is a food service supervisor in Juneau, Alaska.

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Teresa Harwell, Teresa Harwell, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Teresa Harwell is a school food service director in Alaska.

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Susan Greene, Susan Greene, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

A native of Virginia, with many years serving in Virginia education programs, first as a culinary instructor, then a school principal, before moving into child nutrition, Susan Greene is now a food service director in rural Alaska.

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Sandra Ponte, Sandra Ponte, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Sandra Ponte, a Michigan native, moved to Colorado after high school and worked for a decade in hospitality management. She is now a food service manager in rural Alaska.

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Michael Anderson, Michael Anderson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Michael Anderson, originally from Oregon, now cooks for the Nenana School District in Alaska.

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Carlee Rae Johnson, Carlee Rae Johnson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Carlee Rae Johnson was the 2016 President of the Alaska School Nutrition Association and the food service director for Petersburg, Alaska.

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Comparative Evaluation Of The Effect Of Methyl Bromide Fumigation And Phytosanitary Irradiation On The Quality Of Fresh Strawberries, Tamar Serapian, Anuradha Prakash

Food Science Faculty Articles and Research

Fresh strawberries are highly perishable and have a short shelf-life especially when the cold chain is not maintained. Strawberries exported to Asia are currently fumigated with methyl bromide for phytosanitary purposes, which exposes strawberries to warm temperatures for several hours and air freight without temperature control, resulting in a shelf life of just a few days in the destination country. Irradiation offers an efficacious alternative to fumigation and can be performed on cold fruit. This study was conducted to compare the quality of strawberries subject to methyl bromide fumigation or irradiation followed by simulated commercial air freight shipment of strawberries …

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Forging Links Between Food Chain Labor Activists And Academics, Laura-Anne Minkoff-Zern, Jennifer Gaddis, Nathan Mcclintock, Joann Lo, Felipe Tendick-Matesanz, Amy K. Coplen, Anelyse M. Weiler

Food Studies - All Scholarship

Interest in food movements has been growing dramatically, but until recently there has been limited engagement with the challenges facing workers across the food system. Of the studies that do exist, there is little focus on the processes and relationships that lead to solutions. This article explores ways that community-engaged teaching and research partnerships can help to build meaningful justice with food workers. The text builds on a special roundtable session held at the Annual Meeting of the American Association of Geographers in Chicago in April 2015, which involved a range of academic scholars and community-based activists. We present these …

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Quality Markers Of Functional Tomato Juice With Added Apple Phenolic Antioxidants, Laura Massini, Daniel Rico, Ana Belen Martin-Diana, Catherine Barry-Ryan

Articles

The natural approach to food stabilisation is at the forefront of research on plant compounds for food use. Matrix interactions and stability studies of the incorporated foods are necessary prior to further food processing. In this study, apple peel phenolic fractionated based on acidity (flavonoids and phenolic acids) were added to a commercial bottled tomato juice. The juice was left open i.e. air in the headspace at 4°C for 4 days to assess its physical-chemical quality, and for 10 days for the microbiological analysis. Quality markers were analysed (colour and turbidity) and showed that apple peel phenolics, particularly procyanidins, could …

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Prebiotics: Why Definitions Matter, Robert W. Hutkins, Janina A. Krumbeck, Laure B. Bindels, Patrice D. Cani, George C. Fahey, Yong Jun Goh, Bruce R. Hamaker, Eric C. Martens, David A. Mills, Robert A. Rastal, Elaine Vaughan, Mary Ellen Sanders

Department of Food Science and Technology: Faculty Publications

The prebiotic concept was introduced twenty years ago, and despite several revisions to the original definition, the scientific community has continued to debate what it means to be a prebiotic. How prebiotics are defined is important not only for the scientific community, but also for regulatory agencies, the food industry, consumers and healthcare professionals. Recent developments in community-wide sequencing and glycomics have revealed that more complex interactions occur between putative prebiotic substrates and the gut microbiota than previously considered. A consensus among scientists on the most appropriate definition of a prebiotic is necessary to enable continued use of the term.

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Study On Screening Of Aroma-Producing Microbe And Growing Characters, Xie Jun, Luo Huibo, Bian Minghong, Yang Wenbin, Wang Dadi, Wang Yong

Food and Machinery

Studied screening of aroma-producing microbe from 62 strains indicated by esterified enzyme activity, total ester content and flavor content. The results showed that: yeast Njsys-YT3 and aspergillus Njsys-MD45 had higher esterified enzyme activity and capability of synthesis of the ester, which can produce rich metabolites. The esterified enzyme activity of strains Njsys-YT3 was 16.58 U/mL and the total ester content was 0.22%, esterified enzyme activities of strains Njsys-MD45 was 7.18 U/mL and the total ester content was 0.14%. The studies of growing characteristics of strains Njsys-YT3 and Njsys-MD45 showed that: Strains Njsys-YT3 and Njsys-MD45 had capability of higher stress tolerance, …

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Response Surface Methodology Optimization Of Fermentation Conditions For Neutral Protease Production By Bacillus Cereus, Xie Wancui, Yang Yadong, Yang Xihong, Wu Shuai, Ji Hongwu

Food and Machinery

In order to improve the production of protease from Bacillus cereus, the fermentation medium composition and culture conditions were optimized. By single factor experiment, the effects were studied, including the optimum additions of carbon and nitrogen sources, the adding amounts, fermentation temperature, inoculation age, shaking speed, medium volume, medium initial pH, fermentation time, and inoculation amount on protease production. On this basis, Plackett-Burman was to evaluate the effects of nine variables, and selected significant factors, namely peptone addition amount, fermentation temperature and medium volume. The optimal fermentation condition was obtained by Box-Behnken and response surface analysis. The optimal conditions of …

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Study On Flow Characteristics In Stirred Vessel With Double Impellers With Cfd, Fan Liming, Li Qingsheng

Food and Machinery

Based on the multiple reference frame method and Realizable k-ε model, the whole flow field in a stirred tank with double CBY impellers was numerically simulated using fluent software. The simulation test results were compared with literature. The effects of the blade spacing on the flow field distribution, the lower blade speed and power consumption were examined. The results showed that with the increase of blade spacing, flow pattern from the “connecting flow” into “dispersed flow”, and the test results have good consistency. The influence of blade spacing to the velocity distributions below the upper impellers was relatively large and …

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Dynamic Simulation And Experimental Research On Superfine Pulverization Of Notoginseng By Ball Milling, Zhou Yumei, Huang Zhihong, Wei Hongyu, Zhu Lixue, Luo Shaoming

Food and Machinery

Three dimensional discrete element numerical model was established by PFC3D with different boundary conditions, the grinding process was simulated, and the average contact force between balls was also analyzed. The effects of different milling factors on the superfine pulverization of notoginseng were investigated, and the simulation results were proved through the single factor experiments. The results showed that the order of key factors, which affected the milling process was rotation speed, ball material ratio and mass ratio of balls. The optimum conditions were as followed: the rotation speed of 500 r/min, ball material ratio of 8 to 1, and mass …

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Research And Application Progress Of The Mountain Orchard Rail Transport, Gong Zhiyuan, Li Yifan, Liu Yande, Shi Qi

Food and Machinery

As most of the mountainous hilly region has been the main production areas for apple, citrus fruit, pear, cherry and other fruits in China, the problems existed in transportation network lacking, high labor intensity and low efficiency during the working practice of transportation. Summarized the present application of the key technologies such as motive power, mechanical drive unit, rack construction of the self-propelled conveyor and traction type conveyer that experts home and aboard have developed on their own. And presented the performance indicators in terms of startup, upgoing, swerve, down and pullup. At the same time, described the state and …

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Effect Of Branch-Chain Elongation On Physicochemical Properties And Digestibility Characterization Of Waxy Corn Starch, He Jian, Wang Ren, Zhang Hao, Zhou Xing, Chen Zhengxing

Food and Machinery

Waxy corn starch (WCS) was modified by amylosucrase (AS). The effect of starch elongation degree on the digestibility and physicochemical properties of modified waxy corn starch (WCS) was investigated. The results showed that under the given reaction condition, enzymatic reaction could be fitted by a logarithmic mathematical model. Compared with native starch, the modified WCSs expressed a continuous matrix structure, and the packing arrangement of crystalline converted from A-type into B-type. With transglycosylation rate (TR) increasing, an increased tendency of proportion of Fr I (DP＞30) was observed, whereas the contents of Fr III (DP＜13) was significantly decreased. In vitro test …

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Study On Removal Of Staphylococcus Aureus Biofilm By Acidic Electrolytic Oxidation Water, Yu Ming, Zhang Quankai, Luo Xiaojun, Chen Haiqiang, Yang Gongming

Food and Machinery

The removal efficiency of electrolyzed oxidizing water on biofilm of Staphylococcus aureus was studied. Electrolyzed oxidizing water showed obvious damage on the Staphylococcus aureus biofilm，including substantially destroyed external matrix, severely destroyed cells and decreased bacterial number observed with SEM（scanning electron microscope）on 5 000-times and 40 000-times. The removal efficiency could be reduced significantly by prolonging storage time of oxidation potential acidic water , raising preservation temperature and the presence of organic interfering substances. The removal efficiency of sealing preservation was superior to openning preservation. The available chlorine, pH value and redox potential had a synergistic effect on the removal efficiency. …

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Study On Influence Of Amino Acids Commercial Cigarette Sensory Quality By Partial Least Square Regression, Zhao Juan, Shen Ning, Yu Jingyang, Xia Shuqin, Cai Jibao, Luo Juanmin, Xu Da, Zhang Xiaoming, Su Jiakun

Food and Machinery

The Partial Least Square Regression (PLSR) analysis was used to study the specific influence of free and hydrolyzed amino acids contents on sensory quality of 10 different kinds of commercial tobacco. The results showed that there were negative correlation between free amino acids and most of sensory quality. Asp, his and thr of the free amino acids have the most significant influence on comfort characteristics. Thr, glu and his of the free amino acids have the most significant influence on smoke characteristics. It indicates that the lower tobacco free amino acids contents, the higher sensory quality. Hydrolyzed amino acids have …

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Analysis On Stability Of Producing Exopolysaccharides By Streptococcus Thermophilus During Multiplication, Bao Zhining, Wu Jinyu, Lin Weifeng, Chen Zhong

Food and Machinery

For the purpose of exploring the stability of producing exopolysaccharides (EPS) for Streptococcus thermophile, 3 different strains (ST-5P, ST-7P, ST-134P) fermented in the exopolysaccharides selection medium for 30 periods (24 hours for each period) multiplication. The results showed that the proliferation and acid production of ST-5P, ST-7P and ST-134P were stable. The stability of producing EPS among these three strains was different. The EPS production of ST-7P was significantly more stable than those of ST-5P and ST-134P. The correlation analysis in SPSS showed that there was no direct correlation between EPS concentration and viable cell numbers or pH value.

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Effect Of Hot Air Drying Dehydration And Artificial Inoculation On Quality Of Kohlrabi Product, Tang Renyong, Guo Xiulan, Liu Dayu, Xie Zhenjian, Wang Chao

Food and Machinery

Aimed to perfect modern fermentation technology of Kohlrabi, and the effects were investigated, of natural wind dehydration, hot air drying dehydration and hot air drying dehydration combined artificial inoculation, on the sense score, physical and chemical index and color of Kohlrabi fermentation product. The results indicated that: 50 ℃ was the optical temperature of hot air drying dehydration; Kohlrabi product with hot air drying dehydration had white color, deficient flavor and taste of typical Kohlrabi fermented, lower sense score, amino nitrogen and lactic acid contents compared with the product with natural wind dehydration. Kohlrabi product with hot air drying dehydration …

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Screening Of Lactic Acid Bacteria From Sichuan Bacon And Analysis On Its Acid Production Characteristics And Amino Acid Production, Liu Youqing, Huang Dan, Yu Hua, Mao Xiang, Liu Dayu, Cheng Hua

Food and Machinery

The lactic acid bacteria were screened in Sichuan bacon, and the acid production characteristics and amino acid products were also stydied. Using culture methods, lactic acid bacteria were isolated and screened from Sichuan bacon, and identified by 16S rDNA sequencing technique. Studied the growth metabolism and acid production capacity on the different temperature, pH, NaCl concentration, nitrite concentration and fermentation products of amino acid. The results showed that the isolation strain was Lactobacillus paraplantarum. Through conditions of producing acid and free amino acid analysis, logarithmic growth phase of strain was 6～18 h; the optimum fermentation acid temperature range was 30～40 …

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Full-Text Articles in Food Science

Tanya Dube, Tanya Dube, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Johanna Herron, Johanna Herron, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Elizabeth E. Edelman, Elizabeth E. Edelman, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Lori Buzzell, Lori Buzzell, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Debbie Kallio, Debbie Kallio, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

James L. Jones, James L. Jones, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Jo Dawson, Jo Dawson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Walter D. Williams, Jr., Walter D. Williams, Jr., Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Lydia Wirkus, Lydia Wirkus, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Adrianne Schwartz, Adrianne Schwartz, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Teresa Harwell, Teresa Harwell, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Susan Greene, Susan Greene, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Sandra Ponte, Sandra Ponte, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Michael Anderson, Michael Anderson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Carlee Rae Johnson, Carlee Rae Johnson, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Comparative Evaluation Of The Effect Of Methyl Bromide Fumigation And Phytosanitary Irradiation On The Quality Of Fresh Strawberries, Tamar Serapian, Anuradha Prakash

Food Science Faculty Articles and Research

Forging Links Between Food Chain Labor Activists And Academics, Laura-Anne Minkoff-Zern, Jennifer Gaddis, Nathan Mcclintock, Joann Lo, Felipe Tendick-Matesanz, Amy K. Coplen, Anelyse M. Weiler

Food Studies - All Scholarship

Quality Markers Of Functional Tomato Juice With Added Apple Phenolic Antioxidants, Laura Massini, Daniel Rico, Ana Belen Martin-Diana, Catherine Barry-Ryan

Articles

Prebiotics: Why Definitions Matter, Robert W. Hutkins, Janina A. Krumbeck, Laure B. Bindels, Patrice D. Cani, George C. Fahey, Yong Jun Goh, Bruce R. Hamaker, Eric C. Martens, David A. Mills, Robert A. Rastal, Elaine Vaughan, Mary Ellen Sanders

Department of Food Science and Technology: Faculty Publications

Study On Screening Of Aroma-Producing Microbe And Growing Characters, Xie Jun, Luo Huibo, Bian Minghong, Yang Wenbin, Wang Dadi, Wang Yong

Food and Machinery

Response Surface Methodology Optimization Of Fermentation Conditions For Neutral Protease Production By Bacillus Cereus, Xie Wancui, Yang Yadong, Yang Xihong, Wu Shuai, Ji Hongwu

Food and Machinery

Study On Flow Characteristics In Stirred Vessel With Double Impellers With Cfd, Fan Liming, Li Qingsheng

Food and Machinery

Dynamic Simulation And Experimental Research On Superfine Pulverization Of Notoginseng By Ball Milling, Zhou Yumei, Huang Zhihong, Wei Hongyu, Zhu Lixue, Luo Shaoming

Food and Machinery

Research And Application Progress Of The Mountain Orchard Rail Transport, Gong Zhiyuan, Li Yifan, Liu Yande, Shi Qi

Food and Machinery

Effect Of Branch-Chain Elongation On Physicochemical Properties And Digestibility Characterization Of Waxy Corn Starch, He Jian, Wang Ren, Zhang Hao, Zhou Xing, Chen Zhengxing

Food and Machinery

Study On Removal Of Staphylococcus Aureus Biofilm By Acidic Electrolytic Oxidation Water, Yu Ming, Zhang Quankai, Luo Xiaojun, Chen Haiqiang, Yang Gongming

Food and Machinery

Study On Influence Of Amino Acids Commercial Cigarette Sensory Quality By Partial Least Square Regression, Zhao Juan, Shen Ning, Yu Jingyang, Xia Shuqin, Cai Jibao, Luo Juanmin, Xu Da, Zhang Xiaoming, Su Jiakun

Food and Machinery

Analysis On Stability Of Producing Exopolysaccharides By Streptococcus Thermophilus During Multiplication, Bao Zhining, Wu Jinyu, Lin Weifeng, Chen Zhong

Food and Machinery

Effect Of Hot Air Drying Dehydration And Artificial Inoculation On Quality Of Kohlrabi Product, Tang Renyong, Guo Xiulan, Liu Dayu, Xie Zhenjian, Wang Chao

Food and Machinery

Screening Of Lactic Acid Bacteria From Sichuan Bacon And Analysis On Its Acid Production Characteristics And Amino Acid Production, Liu Youqing, Huang Dan, Yu Hua, Mao Xiang, Liu Dayu, Cheng Hua

Food and Machinery