Agriculture Commons^™

Food Safety Management In Online Live Broadcast Marketing, Hu Shuiying

Food and Machinery

Literature research and case analysis were used to summarize the development status of online live streaming marketing market, analyze the cases of food safety accidents in live streaming e-commerce, and summarize the food safety problems in current live streaming e-commerce. Governance strategies were proposed, such as strengthening the review of live content, strengthening supervision, unblocking consumer complaint channels and accelerating relevant legislative processes. For the problem of homemade food in network marketing, it can be counseled, supported and invested in the form of an incubator to promote its transformation to formal production.

Design Of Drying Machine With Co-Heating And Dehumidification And Testing Of Its Drying Performance On Shiitake Mushrooms, Bao Huangjie, Guo Wenwen, Li Guoneng, Shi Yuxin, Zhang Mengjie

Food and Machinery

Objective: In order to improve the mushroom drying efficiency and reduce the power consumption, a new type of co-heating and dehumidification drying machine was designed and built. Methods: The drying machine was a closed system, which took the semiconductor refrigeration piece as the main component, with its hot end as heat source for air pre-heating and its cold end as the cold source for water vapor condensation. On the device, the mushroom drying rate at different drying temperatures （55 and 65 ℃） and sample mass （200 and 400 g） were tested. Results: Nine thin layer mathematical drying models were used …

Design Of Automatic Processing Production Line For Fresh Corn, Niu Huli, Zhang Haoyu, Chang Hongjie, Guo Minghao, Yan Haipeng

Food and Machinery

Objective: It solved the problem of low accuracy and large random error when cutting fresh corn, which is easy to damage the grain. Methods: A new process of sweet and waxy corn processing production line was designed, the production line used machine vision technology to judge the attitude of corn, completed the adjustment of corn attitude through reversing equipment, designed adaptive positioning structure to cut the head and tail of corn, and then carried out layer retention processing according to the difference characteristics of ear bract adhesion after cutting results, packed after camera quality screening, and used prototype to carry …

Simulation Analysis Of The Influencing Parameters On The Shelling Efficiency Of Rubber Roller Husker Based On Adams, Wang Zixiao, Wang Wangping, Song Shaoyun

Food and Machinery

Objective: Improve the hulling efficiency of the rice huller. Methods: Simulated the process of rice hulling, and analyzed the influence of various parameters on the hulling process by changing the movement speed of the rubber roller and the line speed difference. Firstly, the model of huller and the model of single-sided shelled brown rice were established in SolidWorks, and then the established model was imported into ADAMS for simulation, and the effects of the corresponding factors on the hulling efficiency of huller were observed by changing the rotational speeds of the fast and slow rollers, the difference in line speeds …

Determination Of Chlorantraniliprole And Penoxsulam Residues In Rice By Quechers-Uplc-Ms/Ms, Huang Zijie, Huang Pengmian, Luo Kuanneng, Xiang Zhongping, Zhang Honggang

Food and Machinery

Objective: To establish a new QuEChERS-ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for the detection of chlorantraniliprole and penoxsulam residues in rice. Methods: After the sample was extracted with 0.2% formic acid-acetonitrile, purified with N-propylethylenediamine (PSA) and graphitized carbon black (GCB) packing, 0.2% formic acid water and acetonitrile were used as mobile phases for gradient elution, and then subjected to C₁₈ chromatography. UPLC-MS/MS was used to column separation and determination. Results: The limits of quantification (LOQ) of chlorantraniliprole and penoxsulam were both 0.004 mg/kg, and the method detection limits (LOD) were both 0.001 mg/kg. Chlorantraniliprole and penoxsulam had …

Fruit Variety And Freshness Recognition Method Based On Yolo-Ffd, Yan Zi, Chen Liangyan, Liu Weihua, Lai Huaqing, Ye Sheng

Food and Machinery

Objective: In order to improve the situation that existing fruit recognition and classification methods rely on manual operation and complex equipment. Methods: A lightweight model YOLO-FFD (YOLO with fruit and freshen detection) was proposed, which based on the YOLOv5 framework. Firstly, LightweightC3 was designed as the basic unit of the backbone feature extraction network based on the depth separable convolution and GELU activation function, which reduced the number of model parameters and computation, and speeds up the convergence of the model. Secondly, EnhancedC3, a large kernel depth separable convolution module, was used to improve the neck of the original model, …

Preparation, Structural Characteristics And Antioxidant Activity Of Cardamine Violifolia Oligopeptides, Wen Xiaolong, Xiang Jiqian, Zhang Liang, Li Yajie, Long Lan

Food and Machinery

Objective: This study aimed to prepare oligopeptidess of Camelina violifolia and expand its application range. Methods: C. violifolia protein was hydrolyzed by alkaline protease, and then used ultrafiltration membrane for isolating and concentrating, and obtained oligopeptides by freeze-drying. The structure and antioxidant activity of C. violifolia oligopeptides were analyzed. Results: The optimum conditions for the hydrolysis of C.violifolia protein were as follows: hydrolysis temperature 50 ℃, pH 10, enzyme dosage 4%, substrate concentration 2%, and hydrolysis degree 17.9%. The C. violifolia oligopeptides contents of protein and polypeptide were 49.01% and 42.87%, respectively. The oligopeptides had a strong absorption band at …

Research Progress Of Visual Information Communication In Food Packaging: A Systematic Review, Tang Cong, Liu Zongming

Food and Machinery

To further develop scientific food packaging design methods, providing consumers with more accurate and prompt food packaging information, the article comprehensively analyzed three types of key cues for food packaging information communication: textual information, food imagery and cross-modal correspondence by integrating domestic and international related literature, and pointed out that textual information was more advantageous in the process of conveying information, positive slogans are more influential, and other detailed information would reduce consumer cognitive bias. Text is more suitable for expressing food functions, while pictures are more suitable for expressing sensory appeals. Secondly, package imagery had a significant impact on …

Research Trends On The Extraction Of Vegetable Oil By Aqueous Enzymatic Method, Guan Mengzhen, Chen Fusheng, Zhao Yuhui

Food and Machinery

Currently, vegetable oil is extracted by pressing method, solvent leaching method and aqueous enzymatic method. The aqueous enzymatic method has the advantages of high oil extraction rate, simple process and good oil quality compared with the pressing method and solvent leaching method. It also reduces the environmental pollution and improves the economic benefits. The review summarized the principle, process flow, characteristics, types of commonly used enzyme preparation, demulsification and vegetable oil quality of vegetable oil production by aqueous enzyme method, and the development trend of vegetable oil preparation by aqueous enzymatic method was prospected.

Optimization Of Macroporous Resin Adsorption Process Of Enzymatic Hydrolysis Of Pueraria Protein And Its Antioxidant Activity In Vitro By Response Surface Method, Yue Yihan, Yan Mingming, Shao Shuai, Ding Yiyuan, Jiang Ting

Food and Machinery

Objective： This study aims to optimize the adsorption of enzymatic hydrolysis of Pueraria protein by macroporous resin and maximize the antioxidant properties in vitro. Methods: The Box-Behnken response surface method was used to determine the optimization of adsorption of enzymatic hydrolysis of Pueraria protein. Using V_C as a control, the antioxidant activity of Kase was determined before and after purification under the optimal purification process. Results： The optimal adsorption-desorption process of macroporous resin is: the mass concentration of the sample solution was 10.0 mg/mL, the flow rate of the eluent was 2.6 mL/min, and the volume fraction of …

Dining Out Behavior In China And The Implications In The Post-Covid-19 Era, Ji Yong Kwon

The Journal of Purdue Undergraduate Research

No abstract provided.

Aspen Recovery In Northern Yellowstone: A Comment On Brice Et Al. (2021), Luke E. Painter, Robert L. Beschta, William J. Ripple

Aspen Bibliography

Aspen sapling recruitment increased as browsing by elk decreased, following the 1995–96 reintroduction of wolves in Yellowstone National Park. We address claims by Brice et al. (2021) that previous studies exaggerated recent aspen recovery. We conclude that their results actually supported previous work showing a trophic cascade benefiting aspen.

Intensifying Rice Production To Reduce Imports And Land Conversion In Africa, Shen Yuan, Kazuki Saito, Pepijn A.J. Van Oort, Martin K. Van Ittersum, Shaobing Peng, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Africa produces around 60% of the rice the continent consumes, relying heavily on rice imports to fulfill the rest of the domestic demand.Over the past 10 years, the rice-agricultural area increased nearly 40%, while average yield remained stagnant. Here we used a process-based crop simulation modelling approach combined with local weather, soil, and management datasets to evaluate the potential to increase rice production on existing cropland area in Africa and assess cropland expansion and rice imports by year 2050 for different scenarios of yield intensification. We find that Africa can avoid further increases in rice imports, and even reduce them, …

Improving Profitability Of Small And Medium Sized Farms Though Economic Optimization Of Wheel-Line Irrigation, John Barker

Funded Research Records

No abstract provided.

Filling The Agronomic Data Gap Through A Minimum Data Collection Approach, Fatima A. Tenorio, Juan I. Rattalino Edreira, Juan Pablo Monzon, Fernando Aramburu-Merlos, Achim Dobermann, Armelle Gruere, Juan Martin Brihet, Sofia Gayo, Shawn Conley, Spyridon Mourtzinis, Nester Mashingaidze, Alex Sananka, Stephen Aston, Jonathan J. Ojeda, Patricio Grassini

Department of Agronomy and Horticulture: Faculty Publications

Context: Agronomic data such as applied inputs, management practices, and crop yields are needed for assessing productivity, nutrient balances, resource use efficiency, as well as other aspects of environmental and economic performance of cropping systems. In many instances, however, these data are only available at a coarse level of aggregation or simply do not exist.

Objectives: Here we developed an approach that identifies sites for agronomic data collection for a given crop and country, seeking a balance between minimizing data collection efforts and proper representation of the main crop producing areas.

Methods: The developed approach followed a …

High Target Homology Does Not Guarantee Inhibition: Aminothiazoles Emerge As Inhibitors Of Plasmodium Falciparum, Sandra Johannsen, Robin M. Gierse, Arne KrüGer, Rachel L. Edwards, Vittoria Nanna, Anna Fontana, Di Zhu, Tiziana Masini, Lais Pessanha De Carvalho, Mael Poizat, Bart Kieftenbelt, Dana M. Hodge, Sophie University Of Nebraska-Lincoln,, Daan Bunt, Antoine Lacour, Atanaz Shams, Kamila Anna Meissner, Edmarcia Elisa De Souza, Melloney Dröge, Bernard Van Vliet, Jack Den Hartog, Michael C. Hutter, Jana Held, Audrey R. Odom John, Carsten Wrenger, Anna K.H. Hirsch

Department of Agronomy and Horticulture: Faculty Publications

In this study, we identified three novel compound classes with potent activity against Plasmodium falciparum, the most dangerous human malarial parasite. Resistance of this pathogen to known drugs is increasing, and compounds with different modes of action are urgently needed. One promising drug target is the enzyme 1-deoxy-D-xylulose-5- phosphate synthase (DXPS) of the methylerythritol 4-phosphate (MEP) pathway for which we have previously identified three active compound classes against Mycobacterium tuberculosis. The close structural similarities of the active sites of the DXPS enzymes of P. falciparum and M. tuberculosis prompted investigation of their antiparasitic action, all classes …

A Survey Of Fusarium Oxysporum In Georgia Hemp Farms And Vegetable Gardens, Christopher D. Burt

Georgia Journal of Science

Recent changes in U.S. federal law have recognized the genetic and chemical differences between hemp and marijuana (Cannabis sativa L.), resulting in the legalization of hemp in the United States. The barriers to this plant’s growth in the state of Georgia are not well understood due to its prohibition for the past 80 years. Among the many possible obstacles is fungal disease. Fusarium oxysporum (Schlecht. emend. Snyder & Hansen) is a fungus that damages various crops and was previously researched as a biocontrol agent for C. sativa. Thus, this study surveyed hemp farms in Georgia to determine the prevalence …

Aspen And Spruce Densities Affect Tree Size, Future Stand Volume, And Aboveground Carbon Following Precommercial Thinning, Philip G. Comeau, Mike Bokalo

Aspen Bibliography

Data collected over a 30-year period from an experiment replicated across 21 locations in western Canada are used to explore the effects of precommercial thinning of trembling aspen to a range of densities in combination with three initial white spruce densities on tree growth and stand dynamics. Increasing differentiation amongst the 15 treatments was observed with age after thinning for both spruce and aspen responses. Spruce height and diameter declined with increasing aspen density. At age 10 spruce diameter with no aspen was 1.5× that of spruce in unthinned while it was 2.6× that of spruce in unthinned at age …

Tracing The Maternal Line In Glacial-Interglacial Migrations Of Populus Tremuloides: Finding Trees For Future Sustainable Forests By Searching In The Past, Luke R. Tembrock, Frida A. Zink, Guozhe Zhang, Andrea Schuhmann, Cuihua Gu, Zhiqiang Wu

Aspen Bibliography

Maintaining and planting sustainable forests is fundamental in perpetuating the essential functions of these ecosystems. A central aspect of managing forests for future resilience is the consideration of past migration and evolution of trees using genetic and genomic data to ensure that functionally appropriate diversity is conserved and utilized. In our study, we generated and compared genetic and genomic data from the plastome to better understand phylogeography and molecular evolution in the tree species Populus tremuloides (aspen). With these analyses, we found evidence of divergence and migration between northern and southern sites. Additionally, evidence of deep incomplete plastome sorting across …

Willingness-To-Pay For Rationed Goods: Bobcat Harvest Permits In Indiana, Nicholas A. Lancaster, Carson Reeling, John G. Lee, Richard T. Melstrom, Joe N. Caudell, Geriann Albers

Department of Agricultural Economics Faculty Publications

We use contingent valuation to estimate hunter and trapper willingness to pay (WTP) for a hypothetical bobcat harvest permit being considered in Indiana. Harvest permits would be rationed, with limits on aggregate and individual harvests. A model of permit demand shows that WTP may be subject to “congestion effects” which attenuate welfare gains from relaxing harvest limits. Intuitively, relaxing limits may directly change an individual’s expected harvest and, hence, WTP. Participation may subsequently change, with congestion offsetting welfare increases. These effects may lead to apparent scope insensitivity that may be endemic in the context of rationed goods.

Internal Logic And Policy Recommendations Of Big Data To Support High-Quality Development Of Modern Agricultural Industry, Yingming Li, Zitong Wang, Mingyue Wang, Shiyi Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Clarifying the internal logic of big data to support modern agricultural production is helpful to cultivate and develop new quality productive forces in agriculture. From the perspective of economics, this study proposes that the role of big data in modern agricultural production is mainly reflected in two levels. Firstly, it improves the total factor productivity of the traditional agricultural production function. Secondly, it changes the factor endowment structure of agricultural production and forms a new agricultural production function. Based on these, the realization form of big data to support modern agricultural production can be summarized as improving the efficiency of …

An Empirical Investigation Of Online Grocery Shopping Behaviors Based On Different Generations, Jung-Im Seo

Faculty Publications

The Coronavirus 19 (COVID-19) pandemic has significantly impacted on consumers’ grocery shopping habits and lifestyles. Online grocery shopping is one of the promising ways to have little contact as well as increase convenience. For this reason, the sales and revenues of online grocery shopping have been dramatically increasing during the pandemic. The purpose of this study to explore online grocery shopping behaviors of different generations and their shopping intentions toward online grocery shopping during and after the pandemic. Data were collected from Amazon Mechanical Turk (MTurk) and Southeast region in U.S.A with convenience sample. All Generations know that online grocery …

Effectiveness Of Mycorrhizae And Vermicompost Seed Inoculation For Germination, Vegetative Growth, Cannabinoid Content, And Cured Flower Weight Of Cbd-Rich Hemp (Cannabis Sativa L.), Hannah Boyer, Nicole Wagner, Merritt Drewery

Journal of Agricultural Hemp Research

Effective germination and vigorous growth of hemp cultivars is paramount to cultivators’ ability to produce high-quality hemp products. Beneficial bacteria and fungi are known symbionts to plants and are used in regenerative agriculture to increase plant health and crop yield. This pilot study investigated the effect of microbial seed inoculation on germination rate, plant height, cured flower weight, and cannabinoid content of cannabidiol (CBD)-rich hemp (Cannabis sativa L). The experiment included a control and the following treatments: 1) seed inoculation of Great White ^â Premium Mycorrhizae (GW), 2) seed inoculation of vermicompost (V), and 3) seed inoculation of Great …

Deficit Irrigation Of Pastures, Matt Yost, Clara Anderson, Niel Allen, Burdette Barker, Melanie Heaton, Justin Wyatt Clawson, Earl Creech

All Current Publications

Deficit irrigation is any irrigation level that does not meet the crop’s full evapotranspiration (ET) demand, meaning evaporation from plant and soil surface and transpiration through plant growth. This strategy is often a last resort for optimizing water use as opposed to those that will not limit production. However, deficit irrigation is often necessary in parts of Utah due to drought or inadequate water supplies. This was especially true in 2021–2022 due to record droughts. Deficit irrigation strategies for pastures have been developed, but they have yet to be compared and evaluated in Utah. This fact sheet summarizes 6 years …

Australian Cool-Season Pulse Seed-Borne Virus Research: 1. Alfalfa And Cucumber Mosaic Viruses And Less Important Viruses, Roger A C Jones, Benjamin S. Congdon

Biosecurity Research Articles

Here, we review the research undertaken since the 1950s in Australia’s grain cropping regions on seed-borne virus diseases of cool-season pulses caused by alfalfa mosaic virus (AMV) and cucumber mosaic virus (CMV). We present brief background information about the continent’s pulse industry, virus epidemiology, management principles and future threats to virus disease management. We then take a historical approach towards all past investigations with these two seed-borne pulse viruses in the principal cool-season pulse crops grown: chickpea, faba bean, field pea, lentil, narrow-leafed lupin and white lupin. With each pathosystem, the main focus is on its biology, epidemiology and management, …

Program Requirements For Beef Cattle Certified As Usda Organic, Carsten Loseke, Elliott James Dennis

Cornhusker Economics

This document provides an overview of the use and production of the USDA Certified Organic program for the beef cattle industry, with an emphasis on the state of Nebraska. We detail what cattle qualify, feed requirements, medical and health standards of cattle, and premiums paid by consumers for USDA certified organic products. All information is taken from the Organic Foods Production Act Provisions available in the Federal Register.

Chemical Control Of Powdery Mildew Of Bigleaf Hydrangea, Christina Jennings, Terri Simmons, Madhav Parajuli, Cansu Oksel, Prabha Liyanapathiranage, Kumuditha Hikkaduwa Epa Liyanage, Fulya Baysal-Gurel

Agricultural and Environmental Sciences Faculty Research

The efficacy of the fungicide pydiflumetofen + difenoconazole (Postiva) was evaluated at varying application rates and intervals for the control of powdery mildew (Golovinomyces orontii, formerly Erysiphe polygoni) in bigleaf hydrangea (Hydrangea macrophylla ‘Nikko Blue’). Container-grown hydrangeas were arranged in a completely randomized design with six single-plant replications. Experiments were done in 2022 and 2023 under both greenhouse and shade house conditions (56% shade). Powdery mildew in hydrangea was developed naturally. Pydiflumetofen + difenoconazole at 1.1, 1.6, and 2.2 ml·L21 and a standard fungicide azoxystrobin + benzovindiflupyr (Mural) at 0.5 g·L21 were sprayed to runoff on 2-, 4-, and 6-week …

High Tunnel Broccoli Cultivar Evaluations, Lewis Jett

Midwest Vegetable Trial Reports

Broccoli is a potentially profitable crop for high tunnel production. Updated information on yield and quality of new cultivars is important for producers making planting decisions. This evaluation of 11 cultivars was conducted within a high tunnel in Fall 2023.

Exploring The Spiritual Alliance Of Maintaining A 5-Acre Tropical Farm Through The Lens Of Occupational Engagement, Jose Rafols, Amy Wagenfeld

The Open Journal of Occupational Therapy

Large-scale commercial farmers and small scale “hobby” farmers engage in growing crops for subsistence and survival for themselves, their families, communities, and beyond. Their reverence and passion for farming make them good stewards of both community and world population nourishment. We suggest there may be a collective physical, emotional, and spiritual draw to farming that is interwoven with occupational engagement. Through a personal narrative approach, we reflect on the meaning and the work-focused occupation of farming and specifically how spirituality may be a guiding force that supports engagement despite seemingly insurmountable environmental and personal hardships. With an increasing interest in …

The Antagonist Effect Of Pichia Kluyveri Against The Aflatoxigenic Aspergillus Flavus, Wafa Masoud

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Aspergillus flavus is one of the main fungi that are known to produce Aflatoxin B1 (AFB1). AFB1 has been detected in many food products and reported to be a carcinogenic. Using a biocontrol agent against A. flavus can safely eliminate or reduce the occurrence of AFB1 in food. Therefore, the effects of four yeast strains of Pichia kluyveri on the growth and spore germination of A. flavus were studied. In addition, the effect of exposure of A. flavus to the yeast’s headspace, as well as the effects of different headspace concentrations of 2-phenyl ethyl acetate and ethyl acetate, on the …