Agriculture Commons^™

Optimization Of Anthocyanin Copigmentation Formula Of Purple Corn And Its Effect On The Quality Of Purple Corn, Pang Wenqian, Yu Rui, Li Dajing, Liu Chunju, Bai Bing

Food and Machinery

Objective: This study aimed to explore the copigmentation formula of purple corn anthocyanins. Methods: In this study, fructose, tannic acid, and pectin were used as co-pigmentation. The response surface method was used to optimize the co-pigmentation formula of purple corn anthocyanins, and the untreated purple corn was used as a control test. The anthocyanin components, color, texture, taste and antioxidant activity (DPPH free radical scavenging ability, ABTS free radical scavenging ability, and FRAP iron ion reducing ability) of purple corn after different treatments were determined. Results: 19% fructose, 0.07% tannic acid, and 1.9% pectin had the best copigmentation effect. Compared …

Study On Preparation, Characterization And Stability Of Β-Cyclodextrin Inclusion Compound Of Foeniculum Vulgare Volatile Oil, Zhang Yumeng, Xu Fang, Yao Yuhan, Li Chenyang, Zhao Jun

Food and Machinery

Objective: To Prepared of β-Cyclodextrin inclusion complex with Foeniculum vulgare（fennel） volatile ooil and study on its sstructural characterization and stability. Methods: Based on the inclusion rate, the inclusion yield and the content of trans-anethole in the inclusion compound, the comprehensive evaluation index was established, and the effects of the ratio of fennel volatile oil to β-cyclodextrin, inclusion temperature and inclusion time on it were explored. The preparation process was optimized by orthogonal test. It was characterized by scanning electron microscopy, thin layer chromatography, Fourier infrared spectroscopy and differential scanning calorimetry. Finally, the stability of the inclusion compound was …

Effects Of Drying Methods On The Quality And Volatile Flavor Compounds Of Oil Tea Powder, Li Guanli, Wu Qiuyue, Chen Xixia, Wu Shujie, Duan Qiuxia, Li Xiaochun, Luo Yanghe

Food and Machinery

Objective: This study aimed to explore suitable drying methods for oil tea powder, making it easier for oil tea consumption and storage. Methods: Spray drying, vacuum freeze drying and vacuum drying were used to dry oil tea soup, and the quality (moisture content, sensory evaluation and color) and volatile substances of dried oil tea powder were evaluated. Results: The sensory score of vacuum freeze-drying oil tea powder was the highest (93), the water content was the lowest (3.78%), and the color was better（ΔE value 49.74). 104 volatile substances were identified from three drying methods of oil tea powder using …

Research Progress On The Mechanism Of Food-Derived Antihypertensive Peptides, Wang Baobei, Zhang Hui, Liu Yusong, Chen Hongbin, Guo Fengxian, Zheng Zongping

Food and Machinery

In this review, several mechanisms of antihypertensive peptides derived from food and its by-products were summarized. Mechanisms based on the RAAS system such as ACE/Ang Ⅱ/AT1R signaling pathways and ACE2/Ang (1-7)/MasR signaling pathways were included. Mechanisms targeting at KNOS system including PI3K/Akt/eNOS signaling pathway, PPAR-γ/caspase3/MAPK/eNOS signaling pathway and L-type Ca²⁺ channel were also discussed. In addition, the pathways of reducing blood pressure by inhibiting endothelin-converting enzyme (ECE) activity discovered in recent years were also introduced.

Effects Of Silymarin On S. Aureus Atcc25923 Biofilm And Its Virulence Factors, Wang Jiakang, Tang Haoguo, Chen Jing, Si Qihe, Shen Ruxiao

Food and Machinery

Objective: In this study, the effects of silymarin on the biofilm S. aureus ATCC25923 and its virulence factors were investigated. Methods: The inhibition and clearance of silymarin on S. aureus ATCC25923 biofilm formation were detected by crystal violet staining, the effects of silymarin on its biofilm metabolism were investigated by MTT staining, and the effects of silymarin on its coagulase expression and hemolytic activity were investigated by freeze-dried plasma and aseptic defibrinated sheep blood. In parallel, the effects of different concentrations of silymarin on its biofilm and Fourier transform were observed under an optical microscope. Results: The results showed that …

Papaya Maturity Detection Based On Multi-Target Sampling And Improved Mask R-Cnn, Qi Guohong, Zhang Yunlong, Su Man

Food and Machinery

Objective: Improve the accuracy and robustness of papaya ripeness detection. Methods: A method of papaya ripeness detection based on multi-target sampling and improved Mask R-CNN was proposed. In the process of data expansion, the method introduced multi-object sampling technology to generate enhanced images from small data sets taken under controlled conditions, which was conducive to extending the proposed method to data sets with complex features of actual papaya images. The effectiveness and robustness of the proposed method were verified by means of average accuracy, accuracy, accuracy-recall curve and calculation time, and the results of papaya ripeness detection effect were compared …

Uncertainty Evaluation For The Determination Of Four Quinolone Residues In Honey By Liquid Chromatography-Tandem Mass Spectrometry, Yang Yun, Cao Yang, Li Jing, Zhong Feifei, Zuo He

Food and Machinery

Objective: This study aimed to evaluate the determination uncertainty of four quinolones residues in honey by liquid chromatography-tandem mass spectrometry （LC-MS/MS）. Methods: Based on GB 31657.2—2021, a mathematical model for sources of uncertainty evaluation was established. The uncertainty of each variable which affect the result were calculated and the weight of each uncertainty component was assessed. Results: The uncertainties in the determination of enrofloxacin, sarafloxacin, ofloxacin and ciprofloxacin in honey were （4.97±0.81）, （10.13±1.58）, （7.67±1.23）, （14.97±2.25） μg/kg （P=95%，k=2） respectively. Conclusion: The main influencing factors of the determination uncertainty were preparation and dilution process of standard solution and …

Effects Of Four Packaging Materials On Preservation Of Passion Flower （Passiflora Caerulea L.） Fruit, Lin Yuzhao, Chen Leiyi, Chen Hongbin, Zheng Jinshui, Jiang Xuanjing, Yang Jingmei

Food and Machinery

Objective: The preservation effects of four packaging materials on passion fruit were studied. Methods: The fruit of passion flower cv. Huangjin （maturity: eight） was used as the research material, and passion flower fruit was treated via polyvinyl chloride （PVC） film, polyethylene （PE） bag, bidirectional stretch polyolefin （BSP） heat shrinkable film, biodegradable modified atmosphere （BMA） bag, respectively, with untreated ones as the control group. Then, the fruits was stored at temperature of （25±1） ℃ and relative humidity of 85% for fifteen days, and the preservation indices of fruit were measured every three days. Results: Compared to control passion fruit, the four …

Structural Characteristics And Hypoglycemic Activity Of Polysaccharides From Different Parts Of Wampee, He Junye, Liu Cheng, Yu Chongyang, Sun Pengpeng, Ren Yuanyuan

Food and Machinery

Objective: This study aimed to develop antioxidant products and anti-diabetes drugs of wampee. The study aimed to research the structural characteristics, anti-oxidation and hypoglycemic properties in vitro of polysaccharides from different parts of wampee. Methods: The structural properties, in vitro antioxidant and hypoglycemic activities of polysaccharides from the fruit, peel and seeds of wampee (CWP-F, CWP-P, and CWP-S) were analyzed and compared from the aspects of chemical composition, molecular weight, monosaccharide composition, appearance, DPPH free radical scavenging rate and α-amylase inhibition rate. Results: CWP-F had the highest molecular weight and was mainly composed of galactose and arabinose, CWP-P was mainly …

Extraction Of Active Ingredients From Penthorum Chinense Pursh And Comparison Of Component Distribution In Different Parts, Xiang Zhuoya, Zhu Boyu, Zhu Yongqing, Xia Chen, Chen Song

Food and Machinery

Objective: This study aimed to determine the extraction solvent and compare the distribution of functional ingredient and antioxidant activities in different parts of Penthorum chinense pursh. Methods: the total phenolic content, total flavonoid content, antioxidant capacity and individual phenolic compounds content in Penthorum chinense pursh were determined and analyzed. Results: The total phenolic content, total flavonoid content increased and then decreased with the increase of solvent concentration. The seven main phenolic compounds （catechin, rutin, pinocembrin-7-O-glucoside, quercetin, kaempferol, pinocembrin and thonningianin A）, ABTS radical scavenging ability, and ferric ion reduction ability were the highest in 80% ethanol extract. The …

Comparative Study On Several Black Bean Components, Antioxidant And Enzyme Inhibition In Vitro, Dang Yuting, Zhang Yan, Jing Boxing, Su Xiaomeng, Chai Xiyan

Food and Machinery

Objective: The difference in bioactive substance content and bioactivity in black beans were compared. Methods: The contents of total phenolic acids, total flavonoids, condensed tannins, total anthocyanins, total polysaccharides and total proteins of nine kinds of black beans were determined. The antioxidant activities of black bean extracts in vitro and their inhibitory effects on α-amylase, pancreatic lipase, acetylcholinesterase and tyrosinase were compared. Results: The contents of total phenolic acid, total flavonoids, condensed tannins and total anthocyanins were as follows: equine bean > small black bean > black bean; Total polysaccharide content: small black bean > black bean > horse bean; Total protein content: horse …

Cradle Explorer: Casfer Interactive Platform For Data And Model Visualization, Olatunde D. Akanbi, Vibha S. Mandayam, Haiping Ai, Arafath Nihar, Erika I. Barcelos, Laura S. Bruckman, Jeffrey Yarus, Yinghui Wu, Huichun (Judy) Zhang, Roger H. French

Student Scholarship

No abstract provided.

Ua12/2/2 Talisman: Pulse, Wku Student Affairs

WKU Administration Documents

Spring 2024 Talisman:

• Hunter, Leah. Pulse
• Muscutt, Carson. High on Bluegrass – Jordan Riehm
• Meyers, Jeffrey. Science of Movement – Exercise Science
• Murray, Debra. Pasture to Plate – Agriculture
• Murray, Debra. Vegetarian Tortilla Soup
• Coffee, Bobbi. Passion, Pain, Curiosity – Innovation Campus
• Story, Miriam. Drafts of a Postcard (October 2023)
• Johnston, Katelyn. Beyond Sound – Deaf
• Hunter, Leah. One Good Week – Madison Weis
• Alali, Cecilia. Crafted Cadence – Speech Team
• Blankenship, Alisa. Loving You
• Sandlin, Ellie. Here After – Death
• Booth, Pandora. Rooted in Rhythm – Step Shows
• Booth, Pandora. Horoscopes
• Pulse Playlist

Linking Reactive Nitrogen Species Within The Vadose Zone With Surface Irrigation, Kaitlyn Richards

Honors Program: Senior Projects (Public)

This study investigated the relationship between irrigation methods and the mobilization of nitrogen in the vadose zone, focusing on soil properties, water dynamics, and nitrogen species distribution. Data collected from dryland and pivot-irrigated soil cores reveal distinct patterns in water content, bulk density, soil texture, pH, conductivity, and nitrogen concentrations. Results indicated that water content has a major influence in nitrogen availability and microbial activity. Nitrate-N and ammonium-N concentrations varied between dryland and pivot soils, with notable disparities observed. In dryland soils, nitrate-N concentrations varied widely across depth intervals, with notable accumulation in deeper layers, while ammonium-N concentrations exhibited a …

Overexpression Of Msdreb1c Modulates Growth And Improves Forage Quality In Tetraploid Alfalfa (Medicago Sativa L.), Yangyang Zhang, Zhen Wang, Fan Zhang, Xue Wang, Yajing Li, Ruicai Long, Mingna Li, Xianyang Li, Quanzhen Wang, Qingchuan Yang, Junmei Kang

Department of Agronomy and Horticulture: Faculty Publications

DREB has been reported to be involved in plant growth and response to environmental factors. However, the function of DREB in growth and development has not been elucidated in alfalfa (Medicago sativa L.), a perennial tetraploid forage cultivated worldwide. In this study, an ortholog of MtDREB1C was characterized from alfalfa and named MsDREB1C accordingly. MsDREB1C was significantly induced by abiotic stress. The transcription factor MsDREB1C resided in the nucleus and had self-transactivation activity. The MsDREB1C overexpression (OE) alfalfa displayed growth retardation under both long-day and short-day conditions, which was supported by decreased MsGA20ox and upregulated MsGA2ox in the OE …

Buying Revenue Protection (Rp) Versus Buying The Rp With Harvest Price Exclusion (Rphpe) Version Of Multi-Peril Crop Insurance, Matthew Stockton, Shannon Sand

Cornhusker Economics

In a conversation with one of the TAPS participants about Multi-Peril Crop Insurance (MPCI) he suggested that you would never recommend RPHPE, due to the risk associated with a higher fall harvest price compared to the spring or predicted price. Since the year 2000, this has occurred about one-third of the time. This price reversal may alter indemnity size considerably, depending on which insurance is selected and if one qualifies for an indemnity. The discussion with the TAPS participant focused on the concern of risk exposure from pre-selling uninsured grain due to an unexpected increase in harvest price. This relates …

Sustainability And Drivers Of Populus Tremuloides Regeneration And Recruitment Near The Southwestern Edge Of Its Range, Connor D. Crouch, Nicholas P. Wilhelmi, Paul C. Rogers, Margaret M. Moore, Kristen M. Waring

Aspen Bibliography

Quaking aspen (Populus tremuloides Michx.) ecosystems are highly valued in the southwestern United States because of the ecological, economic, and aesthetic benefits they provide. Aspen has experienced extensive mortality in recent decades, and there is evidence that many areas in Arizona, United States lack adequate recruitment to replace dying overstory trees. Maintaining sustainable levels of regeneration and recruitment (i.e. juveniles) is critical for promoting aspen ecosystem resilience and adaptive capacity, but questions remain about which factors currently limit juvenile aspen and which strategies are appropriate for managing aspen in an increasingly uncertain future. To fill these critical knowledge gaps, …

Evaluating Consistency Across Multiple Neospectra (Compact Fourier Transform Near-Infrared) Spectrometers For Estimating Common Soil Properties, Sadia M. Mitu, Colleen Smith, Jonathan Sanderman, Richard R. Ferguson, Keith Shepherd, Yufeng Ge

Department of Agronomy and Horticulture: Faculty Publications

Rapid and cost-effective techniques for soil analysis are essential to guide sustainable land management and production agriculture. This study aimed at evaluating the performance and consistency of portable handheld Fourier-transform near-infrared spectrometers and the NeoSpectra scanners in estimating 12 common soil physical and chemical properties including pH; organic carbon (OC); inorganic carbon (IC); total nitrogen (TN); cation exchange capacity (CEC); clay, silt, and sand fractions; and exchangeable potassium (K), phosphorus (P), calcium (Ca), and magnesium (Mg). A diverse set of samples (n = 600) were retrieved from a national-scale soil archive of the Kellogg Soil Survey Laboratory of USDA-NRCS …

The Effects Of Age And Type Of Rearing On Contrafreeloading Behavior In Female Goats, Carly Weems

Honors Theses

Contrafreeloading (CFL) is the willingness of an animal to work for food. This study continues the 2022 pilot study, in which thirteen female goats from the Andrews University Sustainable Agriculture Department were tested to see if there was any correlation between age and contrafreeload in goats, and additionally investigates whether or not there is any correlation between type of rearing and contrafreeloading behavior in female goats. The pilot study found no direct correlation between age and contrafreeloading, therefore early life feeding techniques were also considered for this study.

Eighteen female goats representing three different age groups and three types of …

Evaluating The Importance Of Biosecurity In Swine Operations, Lindsey Lemley, Lilly Rogers, Austin Calhoun

ATU Scholars Symposium

Swine health is critical to maintaining a profitable and productive swine operation. Biosecurity and sanitation are important practices that help maintain herd health. This study aimed to discover how biosecurity protocols and management practices differ between swine operations of different sizes. With diseases such as Porcine Reproductive and Respiratory Syndrome Virus (PRRSV), Brucellosis, and Porcine Circovirus type 2 (PCV2) being common in the swine industry, a strong biosecurity protocol protects swine farmers from financial losses associated with disease outbreaks. In 2004 alone, the estimated financial loss to PRRSV was over $761 million. Data concerning biosecurity and sanitation was collected from …

Accurate Measurement Of Field Size Is Essential For Analysis Of Smallholder Survey Data, Rica Joy Flor, Shen Yuan, Gonzalo Rizzo, Fahmuddin Agus, Anny Ruth P. Pame, Akhara Ouk, Rathmuny Then, Sokheng Keo, Virender Kumar, Particio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Context: Agronomic surveys play a vital role in identifying on-farm yield constraints and opportunities to increase productivity, input-use efficiency, and farmer profit. These surveys typically rely on farmer-reported data, where crop yield and applied inputs per hectare are estimated based on farmer-reported total harvested output and applied inputs per field and associated field size. At question is how accurate field size is, which is vital in the case of smallholders as small inaccuracies can lead to large biases in estimated yield and inputs.

Objectives: The goals of this study are to assess current approaches to determine field size …

Organic-Based Nutrient Solutions For Sustainable Vegetable Production In A Zero-Runoff Soilless Growing System, Maitha Salem Almheiri

Thesis/ Dissertation Defenses

As the adoption of soilless production systems escalates to meet the rising demand for safe and healthy fresh produce, the growing environmental awareness and consumer’s preference for sustainable production systems are stimulating the reduction of synthetic inputs. A greenhouse study using an auto-pot zero-runoff hydroponic system and lettuce (Lactuca sativa L.) as a model vegetable crop was conducted to evaluate the potential of substituting synthetic fertilizer nutrient solutions (NS) with organic-based NS. The use of organic NS resulted in lettuce plants with fewer leaves and a smaller leaf area, plant height, stem diameter, and fresh biomass compared to those grown …

Phenotypic Diversity For Morpho-Agronomic Traits In The Us Proso Millet (Panicum Miliaceum L.) Core Collection, Santosh G. Rajput, Rituraj Khound, Dipak K. Santra

Department of Agronomy and Horticulture: Faculty Publications

Proso millet (Panicum miliaceum L.) is a short-season annual crop known for high water-use efficiency and drought tolerance. The low water requirement makes this ancient grain an excellent rotational crop for the winter wheat-based dryland cropping system in theHigh Plains of theUnited States. The genetic base of the commonly grown US cultivars is very narrow. Assessment of proso millet germplasm for agronomic traits is essential for its efficient utilization in the genetic improvement of this crop. The objectives of this study were to (1) characterize the US proso millet germplasm based on nine important morpho-agronomic traits and (2) classify …

Perspectivas Para El Manejo Sostenible De Las Frutas De La Pasión, Stephany Hurtado Clopatosky, Pilar Rojas-Gracia, Fabián Giovanny Márquez Niño, Juan Camilo Álvarez Mahecha, Edgar Eduardo Roa Guerrero, Yuly Paola Sandoval-Cáceres, Ginna Natalia Cruz-Castiblanco

Ciencias Agropecuarias

Este libro explora el cultivo de pasifloras exóticas, especialmente la gulupa, que ha capturado mercados internacionales debido a su composición rica en antioxidantes, flavonoides y compuestos terapéuticos. Se destaca el impacto económico de su producción en Colombia, convirtiéndose en una de las frutas más exportadas junto a la granadilla y el maracuyá. Además de abordar el crecimiento del comercio global de gulupa, el libro se enfoca en la importancia de gestionar las enfermedades del cultivo y las prácticas sostenibles, el manejo integrado de la artropofauna, y la optimización de la etapa de postcosecha para preservar la calidad del fruto y …

Citdet, Jordan A. James, Heather K. Manching, Matthew R. Mattia, Kim D. Bowman, Amanda M. Hulse-Kemp, William J. Beksi

Computer Science and Engineering Datasets - Archive

The CitDet dataset is composed of images captured at the USDA Agricultural Research Service Subtropical Insects and Horticulture Research Unit in Fort Pierce, FL, USA. Data was collected between October 2021 and October 2022. 579 images were captured from different sections of the orchard using the open-source application Field Book on Android tablets. While collecting images, we faced the camera in a portrait orientation directly centered on the tree of interest. All images were taken at the edge of the soil in the tree row to simulate a ground-based robot imaging the tree while moving between two rows of trees. …

Factors Affecting Honey Bee (Apis Mellifera L.) Health As Perceived By South Georgia Commercial Beekeepers, Kimberly Post

Journal of Extension

Honey bees (Apis mellifera L.) are critical to the pollination of many crops. Bee-oriented organizations survey beekeepers annually to gather information about colony loss and contributing factors. Unfortunately, these surveys provide insufficient data from sideliner and commercial beekeepers in Georgia. Through a survey to better understand South Georgia beekeepers’ perceptions of honey bee health, this project engaged a previously underrepresented group of sideliner and commercial beekeepers.

Effects Of Fungal Biopesticide Doses On Mortality In Bumble Bees, Colton Burris

Undergraduate Research Symposium

Agricultural practices often include the use of pesticides to produce meaningful crop yields. While the pesticide may be used to target “pest” insects (e.g. thrips, aphids, whiteflies), it can also have negative effects on important pollinating insects such as bees. Neonicotinoid pesticides have been found responsible for widespread decline in bee biodiversity, and were even banned in Europe (Sgolastra et al. 2020) . Beauveria bassiana, sold as Botanigard, on the other hand, is a fungal biopesticide that is marketed to be a safer alternative for bees, and has been found to have other possibly harmful effects to the inner …

Effect Of Medium On Epigenetics In Fertilized And Cloned Embryos, Ethan Loertscher

Student Research Symposium

• The metabolic pathways that oocytes and embryos take during early development have an important effect on epigenetic events. This leads to the question of whether different cultures affect epigenetics.
• There are some concerns that serum-containing mediums may be correlated with poor health outcomes.
• Acetylation of lysine 9 on histone 3 is associated with chromatin configurations. The intensity of H₃K₉ac is much lower in cloned embryos (somatic cell nuclear transfer (SCNT)) than what is seen in normal embryos
• This study was aiming to compare IVF and SCNT embryos cultured in a medium containing serum and a medium …

Resource Allocation Of Ecosystem Services Of Cross Timbers Forests, Iryna Mcdonald

SACAD: Scholarly Activities

Abstract

Forested ecosystems offer numerous goods and services, many of which are challenging to quantify directly. The productive potential of the Cross-Timber Forest region requires significant policy attention resulting from the economic contributions these services offer the locality – extending from southern Kansas to central Oklahoma and into Texas, including the metropolitan areas like Tulsa (Oklahoma), Oklahoma City (Oklahoma), and Dallas (Texas), providing ecosystem services to millions of residents along the Midwest-South continuum. Stand variety, in this transitional ecoregion, is largely comprised of post oak (Quercus stellata) and blackjack oak (Quercus marilandica) woodlands with varying tree densities interspersed with patches …

Community And Regional Economic Analysis: Unveiling Economic Dynamics With The Location Quotient Method And Beyond, Daniela M. Mattos

Cornhusker Economics

In addition to the Location Quotient analysis, several other economic development analytical tools can contribute valuable insights to investment decisions, such as population-employment ratios and shift-share analysis. The use concomitant of these tools boosts the information provided by the Location Quotient analysis, offering a more holistic perspective. Recognizing that each analytical tool provides only a partial view, it is essential not to rely solely on one method when making investment decisions. Comprehensive decision-making necessitates leveraging multiple tools to gain a more nuanced and accurate understanding of local economies.