Agriculture Commons^™

Optimization Of Vacuum Osmotic Dehydration Of Cheery Tomatoes, Xu Xin, Wu Yue, Tao Yang, Su Lijuan, Han Yongbin

Food and Machinery

The vacuum osmotic dehydration of cherry tomato cultivated “SU LONG NO.1” was studied. Prior to vacuum osmotic dehydration, cherry tomatoes were pre-treated by blanching combined with lineation, acupuncture, lineation and sonication, separately. Through comparison, blanching combined with lineation was selected as a suitable pre-treatment before osmotic dehydration. Next, the effects of vacuum degree, sugar content, temperature and time on the water loss and solid gain of cherry tomato during osmotic dehydration were studied by single factor study. The osmotic dehydration process at 0.080 MPa was further optimized by response surface methodology. The optimal conditions for osmotic dehydration of cherry tomato …

Application Of Fuzzy Comprehensive And Neural Network Evaluation Models On Tobacco Primary Processing Line Quality, Wang Xiaojuan

Food and Machinery

To solve the problems on determining comprehensive level of pipe tobacco technology via pipe tobacco quality, equipment operation and production consumption, the Fuzzy comprehensive and neural network evaluation models were built based on analytic hierarchy process, linear projection method. The modeling results of the three groups based on the mass coefficient and cutting material condition from September to December indicated that neural network evaluation model could not only verify the rationality and accuracy of multi-factor fuzzy comprehensive evaluation model, but also could independently determine the comprehensive level of pipe tobacco technology. It not only offers scientific evidence to improve production …

The Research On Tobacco Stem Pretreatment Technology In The Production Of Reconstituted Tobacco, Zhao Chunlei, Su Yao, Kou Xiaoteng, Wang Jingyi

Food and Machinery

The effects on physical characteristics, chemical characteristics of tobacco stem, tobacco stem extraction rate and pulp properties after high pressure steam and conventional pretreatiment were investigated in this study. The results showed that the contents of hot water and ethanol soluble in the stem of the high pressure pretreatment increase to a certain extent, and the efficiencies of extraction and the production line were improved. The amount of fine fibers produced by the high pressure pretreatment after the defibrination was less, and this was beneficial to the improvement of the product yield. The dynamic filtration performance of the stem pulp …

Advantage Of Ph Value In Cigarette Smoke, Li Guozheng, Qiu Jianhua, Zhou Hao, Hao Hui, Tian Haiying, Dong Yanjuan, Zhang Zhan, Zhao Wenlong

Food and Machinery

The pH value of cigarette smoke can reflect the proportion of free nicotine in smoke, and the content of free nicotine is closely related to the quality of cigarette. Therefore, it is of great significance to study the pH value of cigarette smoke. In this paper, the current pH value determination methods of cigarette smoke were reviewed, the influences of parameters determination were discussed, such as the methods and counts of cigarette smoking, extraction composition and ratio, object extraction liquid absorption and extraction time and volume. The samples in the literature and the range of pH value were analyzed. The …

Physicochemical Properties Of Resistant Starch Pastes From Potato Modified By A Combination Of Organic Acid And Heat-Moisture Treatments, Xie Tao, Li Xiaowen, Jiang Zhaohui, Yi Cuiping

Food and Machinery

Resistant starches from potato modified by a combination of organic acid hydrolysis and heat-moisture treatments (AH-HMT RS3) were prepared under conditions of excess moisture. Their water binding capacity, degree of swelling, solubility, and pasting, textural, and thermal properties were all studied. The results demonstrated that the water binding capacity of AH-HMT RS3 increased to 1.38～2.32 times (starchwater = 1 g1 g) and 2.20～3.49 times (starchwater = 1 g3.5 g) that of the native starch. At 95 ℃, the degree of swelling decreased to 38.04%~58.10% (starchwater = 1 g1 g) and 53.42%～86.05% (starchwater = 1 g3.5 g) that of the native …

Study Of Membrane Fouling Mechanism In Soy Sauce Clarification, Sun Ye, Yao Lei, Zhao Liming

Food and Machinery

Microfiltration is a popular technology in soy sauce and other brewing products clarification proceducer. As the complex components and the strict requirements in nutrition and flavor, membrane fouling is an intractable problem and the fouling mechanism hasn’t been clarified. In this work, membrane fouling mechanisms was systematically investigated by fitting the flux curve to Hermia model. Results: At the initial stage of soy sauce clarification, the fouling mechanisms was dominated by multi-mechanism, for the complete pore blocking, intermidate pore blocking, and cake layer formation model. During the following process cake layer formation predominated the membrane fouling.The influences of operating conditions …

Effect Of Different Low-Temperature Preservation Methods On The Properties Of Loach (Misgurnus Anguillicaudatus), Shi Qiuling, Shang Yongbiao, Lin Jing, He Xuehua

Food and Machinery

The changes of physicochemical qualities and microbiology in fresh loach treated at three different low-temperature conditions were investigated. The loach was slaughtered and then placed at 4 ℃ cold storage, -2.5 ℃ partial freezing, and -18 ℃ freezing storage conditions, respectively. Loach refrigerated was sampled at 0, 2, 4, 6, 8, 10 d (micro-frozen and freezing separately at 0, 5, 10, 15, 20, 25 d). The sensory evaluation, bacterial count, pH value, TVB-N, TBA, cooking loss, drip loss, and shear force were tested. The results showed that sensory and shear values decreased with time; aerobic bacterial count, TBA, TVB-N, drip …

The Study On The Ultrasonic-Assisted Aqueous Two-Phase Extraction On Flavonoids Of Valeriana Officinalis L. And Antioxidant Activity, Wu Dezhi, Zheng Qiang, Li An, Wang Yuyu, Wu Diyao

Food and Machinery

Flavonoids in Valeriana officinalis L. extracted by ultrasonic-assisted aqueous two-phase extraction was utilized in this study. Effects of ultrasonic time, amount of (NH₄)₂SO₄, ultrasonic temperature and liquid-solid ratio were studied by the single factor methodologies, and then the extraction parameters were determined by Box-Behnken response surface methodology. In addition, reducing power, DPPH radical scavenging and hydroxyl radical scavenging activity were compared to investigate the antioxidant effect of flavonoids by reflux extraction. The results showed that optimized extraction parameters were ultrasonic time 35 min, amount of (NH₄)₂SO₄ 0.20 g/mL, ultrasonic …

The Donation-Based Approach To Solving Critical Social Issues: An Examination Of The Food Waste Recovery Approach To Solving Hunger In The United States, Desa Radic

Capstone Collection

As the issue of hunger continues to plague the lives of nearly 1 billion people around the world, we need to find real, lasting and empowering solutions. This is an interdisciplinary research study into the donation-based approach to solving critical social issues in the United States by examining the food waste recovery and hunger debate. Social, public and private sectors advocate that hunger can be solved through food waste recovery and redistribution methods. From a systems perspective, such thinking is not only problematic for the people facing hunger, but raises concern of achieving overall social justice and change. Using qualitative …

Transcriptomic Resources For The Medicinal Legume Mucuna Pruriens: De Novo Transcriptome Assembly, Annotation, Identification And Validation Of Est-Ssr Markers, N. Sathyanarayana, Ranjith Kumar Pittala, Pankaj Kumar Tripathi, Ratan Chopra, Heikham Russiachand Singh, Vikas Belamkar, Pardeep Kumar Bhardwaj, Jeff J. Doyle, Ashley N. Egan

Department of Agronomy and Horticulture: Faculty Publications

Background:

The medicinal legume Mucuna pruriens (L.) DC. has attracted attention worldwide as a source of the anti-Parkinson’s drug L-Dopa. It is also a popular green manure cover crop that offers many agronomic benefits including high protein content, nitrogen fixation and soil nutrients. The plant currently lacks genomic resources and there is limited knowledge on gene expression, metabolic pathways, and genetics of secondary metabolite production. Here, we present transcriptomic resources for M. pruriens, including a de novo transcriptome assembly and annotation, as well as differential transcript expression analyses between root, leaf, and pod tissues. We also develop microsatellite markers …

Ennis, William Franklin, Sr., 1856-1939 (Mss 614), Manuscripts & Folklife Archives

Manuscript Collection Finding Aids

Finding aid only for Manuscripts Collection 614. Journals with short entries about daily happenings and listings of farm expenses for William F. Ennis, a farmer, quarry owner, and businessman from Warren County, Kentucky. Also includes some poetry, weather information, and data about an unnamed individual conducting a school.

North Central Extension Risk Management Education, Christine Lockert, Bradley D. Lubben

Cornhusker Economics

After peaking over $123 billion in 2013, U.S. net farm income fell to $68 billion in 2016 with projections of $62 billion for 2017, a nearly 50% drop (USDA Economic Research Service). The large drop from 2013 to 2017 after nearly a decade of strong growth in agricultural income presents a substantial challenge to agricultural producers and an increased need to manage risk on the farm or ranch carefully.

Resistance Of Two B. Japonicum Strains To Antibiotics And Their Effect With Or Without Solid Carriers On Growth And Biomass Yield Of Cowpea, Amarachi Grace Nwokocha Miss

Andrews Research Conference

Biological Nitrogen Fixation (BNF) is one of the major sources of nitrogen to inherently low tropical soils (Bohool et al.,1992). The level of resistances of microorganisms to different concentrations of antibiotics is a factor for determining the degree of tolerance of microbes to stressful environments, especially microbes which take part in BNF. Carriers are also required for effective inoculant preparation to facilitate the survival and multiplication of rhizobium strains(microbes). Parent rhizobium strains USDA 3384 and USDA 3451 were exposed to antibiotics at different concentrations to determine their intrinsic resistance level. These were further seeded into three different solid carriers (peat, …

Nebraska National Agri-Marketing Association: Practical Experience And Professional Development, Kara Heideman, Rosalee A. Swartz

Cornhusker Economics

The University of Nebraska-Lincoln National Agri- Marketing Association (NAMA) chapter concluded a successful year at the NAMA annual conference. The chapter brought home three awards, a chapter performance award for chapter communications, fourth place outstanding student chapter and fifth place in the John Deere Signature Award competition. Chapter performance award judges praised Nebraska NAMA's collaboration with the University of São Paulo. Students from São Paulo joined Nebraska students each week to work on developing the marketing plan for the competition. The John Deere award is given to student chapters based on business knowledge, academic excellence, leadership development and community citizenship. …

Speculations On A City For Mars, Edouard Terzis

School of Architecture - Theses

This thesis proposes the reinterpretation of architectural forms as the index of the constitution of the idea of the city. “Speculations on a City on Mars” is paradoxical in a sense as it superposes both the managerial representation of a city, that is Zoning, along with the speculative aspect of an extra-terrestrial city.

A Comprehensive Analysis Of Alternative Splicing In Paleopolyploid Maize, Wenbin Mei, Sanzhen Liu, James C. Schnable, Cheng-Ting Yeh, Nathan M. Springer, Patrick S. Schnable, William Brad Barbazuk

Department of Agronomy and Horticulture: Faculty Publications

Identifying and characterizing alternative splicing (AS) enables our understanding of the biological role of transcript isoform diversity. This study describes the use of publicly available RNA-Seq data to identify and characterize the global diversity of AS isoforms in maize using the inbred lines B73 and Mo17, and a related species, sorghum. Identification and characterization of AS within maize tissues revealed that genes expressed in seed exhibit the largest differential AS relative to other tissues examined. Additionally, differences in AS between the two genotypes B73 and Mo17 are greatest within genes expressed in seed. We demonstrate that changes in the level …

Family Feud Ends Up In Court, J. David Aiken

Cornhusker Economics

A May 2017 decision by the Nebraska Court of Appeals deals with an unfortunately common situation in Nebraska family farm corporations– is the on-farm heir (or heirs) in charge of the corporation legally required to share the corporation’s income with the off-farm heirs? (24 Neb. App. 649) As we shall see, the court answered “no” even though that seems to be an unfair result.

Postharvest Quality And Physiology Of ‘Fuji’ Apples Subjected To Phytosanitary Irradiation, Nasim Kheshti, Alan Baquero, Anderson Melo, Anuradha Prakash

Student Scholar Symposium Abstracts and Posters

Irradiation is an effective treatment to sterilize and destroy insect pests on fresh fruit. It serves as an alternative to cold treatment and to fumigation which are time consuming and ozone depleting, respectively. In this study, the postharvest quality of Fuji apples was evaluated after irradiation at 400 Gy and 800 Gy. The quality of the apples which were stored at 1˚C for 7 days to mimic ground transportation and distribution and then at ambient temperature for another 7 days to mimic retail storage and consumer use, was assessed. Irradiation caused an immediate decrease in firmness by 12% at 400 …

Effects Of Integrating Mathematical Concepts Into A Nutrition Unit In The Animal Science Curriculum, Andrea R. Gardner, Brian K. Warnick, Rebecca G. Lawver

Journal of Research in Technical Careers

Achievement test scores in mathematics have been a concern among educators for many years. Teaching contextualized mathematics has been found to be effective and includes providing a direct application to real-life scenarios rather than teaching linear equations and algebraic principles in isolation. This study measured the effects of integrating mathematical skills in one instructional unit in an animal science curriculum. Students from eight schools participated in the research study. Students completed a pretest measuring their existing mathematical skills and self-efficacy in math. All students were taught a unit of instruction about animal nutrition and feeding. The control group received a …

Using Ancient Practices To Fix Modern Problems: The Effect Of Biochar On Einkorn Wheat And Soil Quality, Sarah L. Miller

Senior Honors Projects, 2010-2019

As farmland soils become more and more depleted, the importance of effective soil amendments grows. Biochar is a potential soil and carbon amendment that could improve water and nutrient holding capacity and foster growth of beneficial microbes and fungi. Biochar does not contain nutrients but acts like a sponge, absorbing nutrients around it. It is so effective at holding nutrients that in the first year, if applied alone, it can make the nutrients unavailable to plants and lowers crop yields. To get the best results biochar must be saturated, also referred to as inoculated or charged, with nutrients. Once the …