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Effects Of Fruit Position In Standard Place Pack Cartons And Gamma 1 Irradiation On The Postharvest Quality Of ‘Barnfield’ Navel Oranges, Karina Cruz Rodriguez (Friscia), José De Jesús Ornelas-Paz, Vrani Ibarra-Junquera, Maria Criselda Toto, Akanksha Jain, Anuradha Prakash

Food Science Faculty Articles and Research

The objective of this study was to determine if oranges in the top and bottom layers within a Standard Place Pack were impacted differently by irradiation after long-term storage. ‘Barnfield’ Navel oranges were packed in Standard Place Pack cartons and treated with 0, 0.15, or 1 kGy of gamma irradiation. The fruit were stored for 3 weeks at 5 °C and then for 1 week at 20 °C. After storage, the fruit from the top and bottom layers were separately evaluated for quality. The development of stem-end rind breakdown (SERB) was the main cause of quality loss and was greater …

Effects Of Stand Structure, Browsing, And Biophysical Conditions On Regeneration Following Mountain Pine Beetle In Mixed Lodgepole Pine And Aspen Forests Of The Southern Rockies, Kristen A. Pelz, Frederick W. Smith

Aspen Bibliography

Aspen (Populus tremuloides) and lodgepole pine (Pinus contorta var. latifolia) co-occur in the southern Rocky Mountains (USA), where mountain pine beetle (MPB, Dendroctonus ponderosae) has caused extensive lodgepole pine mortality since the late 1990s. Both species excel in post-disturbance high-light environments, but lodgepole pine has generally been thought to establish poorly on undisturbed seedbeds, and aspen suckering may be inhibited by intact aspen overstory. We ask whether lodgepole pine and aspen will regenerate in sufficient quantities to revegetate these forests. We visited a random sample of aspen and lodgepole pine stands across the affected landscape …

A Model For Farmer Support In Zimbabwe – Opportunity For Change, Brierly Kuhudzayi, Daniela Mettos

Cornhusker Economics

Community development refers to the collective action of a group of people to improve their quality of life or to fix a problem they face. It involves active participation by the people facing the problem. Input subsidy programs (ISPs) are commonly used in Sub-Saharan Africa as a strategy to achieve several development goals. They generally aim to improve the lives of poor subsistence-level farmers, improve agricultural output, and stimulate the economy. However, ISPs are not technically a community development tool because they are typically centrally planned and top-down in nature.

Effect Of Salt Content On Physicochemical Properties And Antioxidant Activity During Post-Fermentation Of Douche, Wan Jun, Cheng Weiwei, Shen Xiaolu, Jiang Aimin

Food and Machinery

The impact of salt content on post-fermentation of douchi was studied. In the post-fermentation stage, 8%, 10%, 12% of salt were added for 30 days fermentation. The results showed that, with the increase of salinity, the total acids and pH decreased, the hardness and chewiness increased, which shallowed the color and declined the taste of douchi. The high salinity was bad for producing the total amino acid nitrogen and γ-PGA, and also inhibited the antioxidant activity of douchi. Finally, 8% of salt was considered to be the best, but the flavor remained to be improved.

Studies On Α-Lipoic Acid Molecularly Imprinted Membrane And Its Antioxidant Properties, Yang Bowen, Chen Yuqin, Zhu Qiujin

Food and Machinery

Thermo-sensitive α-lipoic acid molecularly imprinted polymers (ALA-MIPs) were synthesized through pre-polymerization using α-lipoic acid as a functional monomer and N-vinylcaprolactam (NVCL) as both thermo-sensitive monomer and functional monomer. Poly(acrylonitrile) (PAN) and Poly(vinylidene fluoride) (PVDF) were used as the main raw material to synthesis molecularly imprinted membranes through the heterogeneous particle-filling method by adding ALA-MIPs. The morphology of the molecularly imprinted membrane(MIM) was investigated by scanning electron microscopy. The mechanical properties, hydrophilic properties, water absorption abilities, and ALA release properties of the membrane were also investigated. The results show that the PVDF membrane has better mechanical properties and hydrophobic properties when …

Research Progresses On Processing And Utilization Of Freshwater Fish Surimi And Surimi Products, Tan Li, Zhou Chunxia, Hong Pengzhi

Food and Machinery

In this paper, the processing utilization of freshwater fish surimi and its products were reviewed from three main aspects combined current research at home and abroad, including the processing characteristics and mechanisms, the influencing processing factors, and the deodorization methods. It was pointed out that the shortages of basic researches, transport conditions, and production equipments in the processing and utilization of freshwater fish surimi. It would provide some useful information for exploring the development directions of surimi and surimi products in future, and promote the optimization utilization of freshwater fish resources.

Advances In Pulsed Light And Its Applications In Food Industry, Du Yan, Chen Fusheng

Food and Machinery

As one of the novel nonthermal methods, pulsed light (PL) is a technology for the fast, mild and residue free surface decontamination of food and food contact materials. This paper introduces the appliance and mechanism of PL firstly, and then details its application in food sterilization and removal of toxins and allergens. At last, the drawbacks of PL and its possible developments in food industry are discussed.

Optimization Of The Process For The Enrichment Of Pinolenic Acid From Pressed Pine Seed Oil By Urea Inclusion Method, Liu Zhixin, Liu Zhibin, Zhang Gensheng, Yue Xiaoxia, Yang Huiduo, Xu Chunming

Food and Machinery

The effects of different concentration of ethanol, ratio of fatty acid to urea, ratio of fatty acid to ethanol, inclusion time, inclusion temperature and times of inclusion on pinolenic acid in pressed pine seed oil were studied. Based on results from single factor test, the optimal experimental design was carried out according to the principle of Box-Behnken central combination test design. The urea inclusion regression model of pinolenic acid was established using the comprehensive score of pinot acid content and loss rate as the response value. The results showed that the fatty acid∶urea =1∶2.88（g/g）, fatty acid∶ethanol =1∶7.98 （g/mL）, inclusion time …

Optimization Of Processing And Gel Properties Of Low-Salt Silver Carp Surimi Gel Prepared By Ultra-High Pressure, Dai Huimin, Ye Tao, Li Lin, Jiang Shaotong, Lu Jianfeng

Food and Machinery

In order to improve the gel properties of low-salt surimi, the optimum conditions for the low-salt silver carp surimi gels by ultra-high pressure processing (UHPP) were obtained by means of response surface methodology (RSM), with the gel strength and water holding capacity (WHC) as indicators. The gel properties (texture, gel strength, WHC, protein pattern and microstructure) of the optimized low-salt surimi (1.5% NaCl, 300 MPa), low-salt surimi (1.5% NaCl, 0.1 MPa) and the standard percentage of added salt of surimi (2.5% NaCl, 0.1 MPa) were compared. The results showed that the optimum conditions of low-salt silver carp surimi gels by …

Discussion On The Status Of Chinese Medicine Dietary Food Certification Management, Xia Xinbin, Yang Yong, Wu Yubing, Xie Mengzhou, Huang Huiyong, Li Ling

Food and Machinery

Starting from the concept of traditional Chinese medicine dietary food, this paper analyzes the problems that Chinese current laws and regulations on food and drug administration restrict the development of traditional Chinese medicinal dietary food,and points out that there is no clear quality standard for traditional Chinese medicinal dietary food industry at present. In view of the above，it is necessary to draw lessons from the current world food and drug certification system,then formulate the certification system of traditional Chinese medicinal diet in line with the characteristics of the traditional Chinese medicinal diet industry, so as to promote the standardization and …

An Investigation On Flavors Formation Between The Reaction Of 5-Hydroxymeth-Ylfurfural And Amino Acid, Wang Ge, Zeng Rui, Qiu Ruixia, Huang Caihuan, Zheng Jie

Food and Machinery

The reaction of 5-hydroxymethylfurfural (HMF) with serine, threonine, gamma-aminobutyric acid and alanine, and the relative volatile substances were determined by Gas Chromatography-Mass Spectrometer (GC-MS). The results showed that 21 volatile components in total were detected from the reaction system of HMF and these amino acids, most of which were carbonyl compounds, furans and hydrocarbon compounds. In HMF-Serine system, the concentrations of pyrazine，5-methyl-2-furaldehyde and nonanal were the highest in the reaction system with the highest contents of the reactants and the longest reaction time. In HMF-Threonine system, the production of acetophenone, 3-methyl-pyrazine and 2,5-dimethyl-pyrazine was positively influenced by the reaction time. …

Development And Testing Of A Standardized Method To Estimate Honeydew Production, Melinda L. Moir, Michael Renton, Benjamin Hoffmann, Mei Chen Leng, Lori Lach

Biosecurity Research Articles

Honeydew production by Hemiptera is an ecologically important process that facilitates mutualisms and increases nutrient cycling. Accurate estimates of the amount of honeydew available in a system are essential for quantifying food web dynamics, energy flow, and the potential growth of sooty mould that inhibits plant growth. Despite the importance of honeydew, there is no standardized method to estimate its production when intensive laboratory testing is not feasible. We developed two new models to predict honeydew production, one based on insect body mass and taxonomic family, and one based on body mass and life stage. We tested the accuracy of …

Preparation And Characterization Of Arabinoxylan From Rice Bran Fiber, Divya Kandanool

Student Theses and Dissertations

The purpose of this investigation was to isolate arabinoxylan (AX) from rice bran fiber and characterize its structural properties with enzyme and chromatographic techniques. The hypothesis was that glycoside hydrolase family 11 endo-xylanase (GH11-XYN) action on rice bran AX would generate oligosaccharide profiles that are distinguishable from other cereal species. The Specific Objectives addressed were to: 1) Extract AX fractions from rice bran fiber and determine yield and compositions. 2) Treat rice bran AX fractions with defined XYNs, and then characterize the enzyme-product profiles. Results showed that GH11-XYN generated large fragments from rice AX (average degree of polymerization 25 to …

Determinants Of Consumer Preference For And Expenditure On Rice In The Kilimanjaro Region, Tanzania, Japhet S. Laizer, Ntam R. Baharanyi, Robert Zabawa, Reuben M.J. Kadigi

Professional Agricultural Workers Journal

The primary objective of the study was to examine determinants of consumer preferences for and expenditure on rice in the Kilimanjaro Region, Tanzania. Data were collected from a random sample of 230 participants, and analyzed using descriptive statistics and regression analyses. The descriptive statistics revealed that domestic rice was preferred by a majority of the participants over imported rice. The most important attribute for consumers was aroma, followed by taste, cleanness, and price. The logistic regression analysis showed that price of a substitute, quality, and household size had significant effects on preference for rice, domestic or imported. The OLS analysis …

Price Seasonality In The Catfish Value Chain In Uganda, James O. Bukenya

Professional Agricultural Workers Journal

Seasonal patterns in production and demand are common in many agricultural markets. Charting these patterns provides information that complements fundamental and technical analyses. It is in this spirit that this paper seeks to examine price seasonality in the catfish value chain in Uganda. The analysis draws on monthly prices taken from secondary source recorded data and uses moving average index to chart price patterns. The results reveal distinct seasonal patterns in the farm-gate, ex-vessel, retail, and wholesale market channels. Across market channels, the results for farm-gate versus ex-vessel prices reveal that farm-gate prices are more affected by seasonal effects compared …

The Effects Of Biochar And Nitrogen Stabilizers Application On Forage Crop Growth, Greenhouse Gas Emission And Soil Quality, Joseph Elias Rodrigues Mikhael

LSU Doctoral Dissertations

ABSTRACT

Forage systems are important for animal production. Nitrogen fertilization and herbicides use has led to a significant increase in forage production. Therefore, this study aimed to investigate the effects of biochar and N-(n-butyl) thiophosphoric triamide + dicyandiamide (NBPT+DCD) application on manure and urea fertilized soil by focusing on nitrogen fertilizer efficiency use, greenhouse gases emissions, microbial community, soil aggregate stability, and organic carbon functional groups. In addition, herbicides effect on greenhouse gases emission was assessed. Biochar and NBPT+DCD increased nitrogen use efficiency of both fertilizers managements and reduced the N₂O emissions following manure fertilization. However, NBPT+DCD was …

Nebline, August 2018

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Nutrition Education Kits developed by Extension help LPS students learn about nutrition and physical activity

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

and other extension news and events

Special pullout section: Lancaster County Super Fair 2018 Schedule & Map

Forage News [2018-08], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Plan your fall seeding now
• Submitting plant samples for diagnosis
• Minimize alfalfa crown rot with potassium

Toxic Effects Of Lead Disposal In Water: An Analysis Of Tri Facility Releases, Patrick Koval

Economics Department Working Papers

Using county-level TRI data from 2003 to 2016, I find evidence that lead emissions in water adversely affect birth weights within the emitting county, especially with respect to the percentage of births considered low birth weight within that county (less than 2,500 grams). I find that a one percent increase in lead emissions per square mile increases the proportion of low birth weights by 0.27 percentage points. For a county with an average number of births in a particular year, this one percent increase in lead per square mile translates to an additional $475,000 in hospitalization costs from complications with …

Assessing A Peer Mentor Program In An Honors College Of Agriculture, Isabel Whitehead

Graduate Theses and Dissertations

The purpose of the study was to assess mentees’ experiences in a peer mentor program in an honors college of agriculture and to determine which factors impact mentees’ ability to relate to their peer mentor based on the theory of homophily and interpersonal attraction. Colleges of agriculture are encouraged to examine which determinants impact students’ decisions to enter agri-science programs, what draws students to postsecondary agricultural programs, and to try recruiting underserved individuals into higher education to fulfill open employment opportunities for diverse, skilled, and globally competent individuals (Goeker, et al., 2015; Stripling & Ricketts, 2017). Peer mentoring is often …

The Relationship Of Male And Female Pastoralist Income With Household Food Security And Nutrition Status In Tanzania: Maasai, Sukuma, And Barabaig Ethnic Groups, Henriette Gitungwa

Department of Agricultural Economics: Dissertations, Theses, and Student Research

Although previous work provides a significant baseline for understanding the impact of gender on household decision making and resource (i.e. income and food) allocation, there are gaps in evidence for important groups, including East African pastoralists. Previous authors have noted that pastoralists’ gender roles and relations appear to be resistant to change, potentially impeding household development. This paper attempts to assess the relationship between male and female pastoralists’ income control and household food security and nutritional status in Tanzania. We use three surveys: a household-level livestock health and economics survey, a household food security survey, and an individual woman-level survey …

Socioeconomic Impacts Of Infrastructure Investment In Eswatini: The Case Of Lusip, Noussayma Njeim

Graduate Theses and Dissertations

The 2016 Eswatini Vulnerability Assessment Report indicated that over half of the Eswatini population required livelihood support due to the severe El Niño drought. Since agriculture is the backbone of Eswatini’s economy, investments in climate change mitigation are needed in order to help protect the agriculture sector and associated livelihoods from increased yield and profit variability associated with future droughts. The IPCC (Intergovernmental Panel on Climate Change) estimates climate change in Eswatini could reduce rain-fed agricultural yields by up to 50%, threating the ability of Eswatini to be food secure. As such, investing in water capture systems could help mitigate …

Effect Of Corn Silage Harvest, Hybrid, And Concentration On Performance In Growing And Finishing Beef Cattle, Fred H. Hilscher Jr.

Department of Animal Science: Dissertations, Theses, and Student Research

Six studies were conducted to evaluate effects of corn silage harvest, hybrid, and concentration in growing and finishing diets. Experiment 1, evaluated corn silage DM (37 or 43%) and replacing corn grain with silage (15 or 45% of diet DM) in finishing diets. Experiment 2, evaluated corn silage DM (37 or 43%) and response to rumen undegradable protein (RUP) supplementation in growing diets. Experiment 3, evaluated nutrient digestibility of 37 or 43% DM corn silage at two different intakes. Experiment 4, 5, and 6 evaluated three corn silage hybrids: a standard hybrid control (CON), a brown midrib (bm3) …

U.S. Consumers’ Perception, Intention, And Purchase Behavior Of Grass-Fed Beef, Elizabeth K. Crandall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research study was to compile regional profiles of the consumers who intend to consume grass-fed beef in the U.S. and to create marketing strategies that would assist producers in marketing their product to consumers. The researcher sent an online survey to a panel of 484 consumers across the U.S. to learn about their perceptions of and intention to purchase grass-fed beef.

Respondents had a weak, positive attitude toward purchasing grass-fed beef but had low knowledge of production practices. These consumers had a desire to eat healthier; however, they wanted meat that was priced right and had …

Evaluation Of The Interaction Of Beta-Adrenergic Agonists Supplementation And Heat Stress On Growth Performance And Carcass Composition In Feeder Lambs, Lauren Elisabeth Kett

Department of Animal Science: Dissertations, Theses, and Student Research

Forty-nine crossbred feeder lambs (wethers, n = 49; 53.3 ± 3.7 kg BW) were utilized to evaluate the interaction of b - adrenergic agonist (bAA) supplementation and heat stress on growth performance and carcass composition. Utilizing and 3 x 2 factorial design, lambs were randomly assigned to one of three bAA supplementation: 1) Control, CON, 2) Ractopamine Hydrochloride at 40 mg/hd/d, RHCL, and Zilpaterol Hydrochloride at 2.5 mg/hd/d, ZHCL for a period of 20 d and one of two environmental conditions (Thermal Neutral: TN and Heat Stress: HS). The TN environment had a constant thermal heat index (THI) of 16.6°C. …

Fresh And Easy: How To Make Pureed Baby Food, Shayla Shearer, Mateja R. Savoie-Roskos, Carrie Durward

All Current Publications

This fact sheet tells how to safely prepare and store pureed baby food so it is nutritious, convenient and less expensive than store bought baby food.

Proper Care And Management Of Common Health Concerns With 4-H Steers And Heifers, Karah Nay, Matthew D. Garcia, Kerry A. Rood, Chelsea Walker

All Current Publications

The purpose of this fact sheet is to give youth and their parents a basic guide of what signs and symptoms to watch for to prevent illness or death. It includes instructions on how to take vitals, how to assist the veterinarian when called, the compiling of materials for a first aid kit, proper antibiotic administration, vaccinations, and preventive practices that the youth can implement while caring for their animal.

Proper Care And Management Of Common Health Concerns With 4-H Hogs, Karah Nay, Dennis Worwood, Kerry A. Rood

All Current Publications

The purpose of this fact sheet is to give youth and their parents a basic guide of what signs and symptoms to watch for to prevent illness or death. It includes instructions on how to take vitals, how to assist the veterinarian when called, the compiling of materials for a first aid kit, proper antibiotic administration, vaccinations, and preventive practices that the youth can implement while caring for their animal.

Nutritional Needs Among High School Athletes, Andy Mitchell, Mateja R. Savoie-Roskos, Natalie Norris, Carrie Durward

All Current Publications

High school athletes have a greater need for nutritional adequacy for proper growth, development, wellness and performance as compared to students who do not participate in sports. This fact sheet discusses the purpose of carbohydrates, protein, fat, and hydration, why they are necessary in an athlete’s diet, food sources of each, and fun facts to help the young athlete enhance their diet.

Create Farm Fresh Food Curriculum, Casey Coombs

All Current Publications

This curriculum focuses on increasing Food Sense participants' use of Utah farmers market. It includes information to successfully implement, and evaluate Create Farm Fresh Food classes. The goal of this set of classes is to increase SNAP participants’ use of local farmers’ markets. Markets are a great place to buy fresh fruits and vegetables that offer better taste and nutritional value than many of those found at traditional grocery stores. With the Double Up Food Bucks, and Fresh Fund incentive programs, shopping at farmers’ markets has even become more economical for our target population.