RSS 1.0Biological Systems Engineering, Department of
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This community features research by faculty members and graduate students in the Department of Biological Systems Engineering at Washington State University. This department works to discover and apply scientific engineering principles and methods to the processes of the natural world and provide advanced graduate education to engineering professionals. Research emphases include agricultural automation engineering; bioenergy and bioproducts engineering; food engineering; and land, air, water resources and environmental engineering.
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Novel process for producing value-added lignin-based chemicals from alkaline effluent of chemical treatment of lignocellulosic biomass
(8/4/2016)The invention discloses a novel process to make hydrophobic interaction between lignin and ABA-block-copolymers, providing solubilization or encapsulation of the lignin in block copolymer micellar systems and utilizing the ... -
Chemoselective aerobic oxidation of aliphatic alcohols in lignin in micellar system
(2016-05)A micellar catalytic system for chemoselective aerobic oxidation of primary alcohol in the diol fragment guaiacylglycerol-guaiacyl ether as one of the most common structure in lignin has been proposed. The catalyst system ... -
Aspen Modeling of the NARA Conversion Processes
(2016)The report provides a set of process flow diagrams, process parameters, and mass and energy balances, which define the NARA conversion process. The described process begins at the plant gate with the reception of forest ... -
Advanced upgrading of pyrolysis oil via liquid-liquid extraction and catalytically upgrading
(2015)Biomass is one of the important renewable energy sources which are used to produce carbon-based liquid fuels through biochemical and thermochemical methods. The bio–oil from the biomass pyrolysis is an intermediate and ... -
Effect of deficit irrigation on yield, quality and grower returns of native spearmint and hops in Washington State
(2013)This study analyzed the effects of water stress levels on the yield, quality, water use efficiency and grower returns of drip irrigated native spearmint and four subsurface drip irrigated hop cultivars: Mt. Hood, Columbus, ... -
DISINFESTATION OF DRIED FRUITS USING RADIO FREQUENCY ENERGY
(2013)The goal of this research is to develop radio frequency (RF) treatments for pest control in dried fruits. The dielectric properties of five dried fruits were determined at RF and microwave (MW) frequencies and temperatures ... -
POLYMERIC-BASED MULTILAYER FOOD PACKAGING FILMS FOR PRESSURE-ASSISTED AND MICROWAVE-ASSISTED THERMAL STERILIZATION
(2013)Advanced food technologies such as Microwave-Assisted (MATS) and Pressure-Assisted Thermal Sterilization (PATS) of foods have the advantage of reducing processing times and the detrimental effects on food quality. However, ... -
TWO-STAGE HETEROTROPHIC AND PHOTOTROPHIC CULTURE TECHNOLOGY FOR MICROALGAL BIOFUEL PRODUCTION
(2013)Microalgae are attractive feedstocks for producing renewable biofuels. In this dissertation, I developed a two-stage heterotrophic and phototrophic microalgae culture system for biofuel production. Heterotrophic cultures ... -
The use of 1H NMR spectroscopy to assay triglyceride content in microalgae, yeast and diatoms for biofuel production.
(3/30/2012)The need for an alternative liquid fuel source to traditional fossil fuels has led researchers to consider microalgae as such a source, especially for biodiesel and aviation fuels. Many species of microalgae produce large ... -
Channel Routing Using Discrete Hayami Convolution Method with Applications to the Water Erosion Prediction Project (WEPP) Model
(2012)The primary goal of this research was to evaluate different channel routing methods that are suitable for watershed modeling and to develop channel routing routines that can be incorporated into typical watershed models. ... -
DEVELOPMENT OF NON-CHEMICAL POSTHARVEST TREATMENTS FOR DISINFESTING AGRICULTURAL PRODUCTS
(2012)Chemical fumigation disinfestation treatments bring more and more concerns due to its hazard to environment and human health, it is necessary to develop alternative non-chemical disinfestation treatments for agricultural ... -
Glass transition influence on ice recrystallization in Atlantic salmon (Salmo Salar) during frozen storage
(2011)Low temperature transitions may occur in frozen foods due to the temperature fluctuations resulting in less viscous and partially melted food matrices; In the current study, the influence of glass transitions and temperature ... -
EFFECT OF THERMAL PROCESSING ON THE PHENOLIC ANTIOXIDANTS OF COLORED POTATOES
(2011)Foods with antioxidant capacity contribute health benefits and provide protection against certain cancers, Alzheimer's dementia, and cardio-vascular diseases caused by oxidative damage. Colored potatoes are a significant ... -
THE IMPACTS OF SUSTAINED DEFICIT IRRIGATION MANAGEMENT ON MINT AND CANOLA OIL CROPS IN THE COLUMBIA BASIN, PACIFIC NORTHWEST, USA
(2011)The need for increased agricultural and industrial production, municipal use and environmental constraints is making it a critical decision to develop new technologies and improve available management options for more ... -
Isoelectric Focusing at the Preparative Scale and Isotachophoresis at the Analytical Scale to Separate and Concentrate Molecules of Interest
(2011)Electrophoresis is a technique to separate and/or concentrate charged analytes under an applied electric field. This thesis is divided into seven chapters. The first chapter outlines the dissertation with an introduction ... -
Morphological and oxygen barrier changes of two multilayer polymeric films subjected to microwave sterilization
(2010)This study compared the effect of conventional retorting and microwave sterilization (MW) on the gas barrier and morphological properties of two multilayer polymeric films; •Significant increase (p<0.05) in oxygen barrier ... -
Gaseous emissions and nutrient fate modeling in dairy operations
(2010)Rise of the Earth's average air temperatures observed since the mid 20th century has been attributed to increase concentrations of green house gases (GHG) -- carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) -- ... -
BACTERIAL CELLULOSE/FIBRIN COMPOSITES: PREPARATION AND MECHANICAL PROPERTIES OF POTENTIAL ARTIFICIAL BLOOD VESSEL MATERIAL
(2010)Bacterial cellulose (BC) and BC/fibrin composites were prepared and the static and dynamic mechanical properties were investigated to assess their suitability to artificial blood vessel applications. An important prerequisite ...