Fresh ripe, cantaloupes were processed into juice and juice concentrate. Processing trials were conducted on fresh and frozen fruits with and without rind. The effects of maceration enzymes and fining agents on yield and quality were investigated. Compositional measurement included °Brix, pH, titratable acidity, formol values, ascorbic acid content, total carotenoids, sugar and nonvolatile acid profiles, browning indices and Hunter color parameters. Considerable ascorbic acid degradation occurred during processing. The high juice yield (80%) and low acidity suggest its potential use as an alternate sweetener source. Sensory evaluation by a trained panel showed that concentrating the juice samples from flesh and rind can remove the rind aroma and flavor characteristics. Juices obtained from flesh and from flesh and rind were not significantly different (p [less than or equal to] 0.05) except for overall intensity and fresh fruit flavor characters. Single strength juice was significantly different (p [less than or equal to] 0.05) from concentrate on most aroma and flavor characters. / Graduation date: 1991

Master of Science / Food Science Institute / Kadri Koppel / The pecan, [Carya illinoinensis (Wangenh) K. Koch], has a long history of cultivation and economic value. Knowledge of the compositional differences that exist between cultivars is important to the marketing of pecan varieties. The objectives of this study were to A) profile flavors for various pecans, B) determine flavor differences attributed to preparation method, C) find characteristics of acceptable pecan flavor, and D) evaluate sources of pecan flavor variation through chemical profiling. The flavor profiles of eight pecan cultivars ('Chetopa,' 'Giles,' 'Kanza,' 'Lakota,' 'Major,' 'Maramec,' 'Pawnee,' and 'Witte') were evaluated using descriptive sensory analysis under raw, roasted, and candied preparation methods. A trained panel evaluated samples for 21 flavor attributes. Five of these attributes differed significantly (p ≤ 0.05) between cultivars, while the preparation method significantly affected 17 attributes. Unique profiles were exhibited for each sample, with the 'Pawnee' and 'Lakota' samples displaying outlying characteristics for certain attributes. These results were used to select cultivars with varied but desirable pecan flavor. 102 nut consumers evaluated 'Kanza,' 'Maramec,' 'Pawnee,' and 'Witte' pecans under raw and roasted conditions for liking and flavor intensity. All samples were met with generally positive consumer acceptance, but three consumer segments were formed based on Overall Flavor Liking scores. Segment 1 was driven by cultivar differences, segment 2 by preparation method, and segment 3 by a combination of these factors. The largest drivers of consumer liking related to the roasting process. Chemical differences between cultivars under raw and roasted preparation methods were explored through fatty acid profiling (8 cultivars) and volatile olfactory compound profiles ('Kanza,' 'Maramec,' 'Pawnee,' and 'Witte'). Fatty acid profile variation could generally be attributed to cultivar differences, not changing much with the roasting process. Linoleic, palmitic, and stearic acids were correlated with more roasted-type attributes while linolenic acid was associated with dry, unfavorable attributes. 51 compounds with olfactory contribution were tentatively identified, 33 of which were found in all samples. Chemical profiles were unique to each sample, but some trends were apparent. The roasted 'Pawnee' sample, having many desirable flavor attributes, being met with great consumer acceptance, and having a composition that is associated with preferential attributes, may serve as a good standard for flavor.

<div> <div> <div> <p>A strongly interacting Quark Gluon Plasma (QGP) is created in relativistic heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC). Owning to their large mass, charm quarks are produced by initial parton-parton hard scatterings and experience the entire evolution of the QGP medium created in heavy ion collisions. They can therefore be a valuable tool to study the early time dynamics and the properties of the QGP. Many experimental observables are exploited to extract the information of QGP. This thesis analyzes the directed flow (v1) and the elliptic flow (v2) of D0 mesons (carrying a charm quark) using data collected by the Heavy Flavor Tracker in the STAR experiment in 2014 and 2016 RHIC runs. The v1 and v2 are measured by the first and second order Fourier coefficients of the D0 azimuthal distribution relative to the reaction plane. The measurements help constrain the parameters in theoretical models to describe heavy quark dynamics in the QGP. The measurements are compared to the v1(2) of light flavors to shed additional insights on the QGP. </p> </div> </div> </div>

O Modelo Padrão das partículas elementares descreve com sucesso as interações eletrofracas e fortes, mostrando-se consistente com os dados experimentais disponíveis. Entretanto, há diversas questões que não são respondidas pelo mesmo, entre elas, o problema da hierarquia de gauge e o problema associado à origem das massas dos férmions. Ambos podem ser solucionados de forma natural em teorias com uma dimensão extra curva. No entanto, essas teorias violam sabor em primeira ordem de teoria de perturbações e são não renormalizáveis. Nesta dissertação utilizamos técnicas de desconstrução dimensional para resolver os problemas da hierarquia de gauge e da hierarquia de massas dos férmions com mínima violação de sabor em um modelo puramente quadridimensional. / The Standard Model of elementary particles describes the electroweak and strong interactions, and its predictions have successfully matched existing experimental data. However, there are some issues that are not addressed by this model, such as the gauge hierarchy problem and the origin of fermion masses. Both problems can be solved naturally using Warped Extra Dimensions. On the other hand, these theories are flavor-violating in tree level and are non-renormalizable. In this dissertation we apply dimensional deconstruction techniques to solve the gauge hierarchy problem and the fermion masses hierarchy problem achieving minimal flavor violation in a purely four-dimensional model

Copies of author's previously published articles inserted. Bibliography: leaves 121-144. This study investigates the site of biosynthesis of flavour compounds in the grapevine. Most of the secondary metabolites, including flavour compounds, are glycosylated and stored in plant tissues as glycosides. The chemical properties of these compounds, especially their water solubility, suggests that glycosides might be forms of translocated secondary metabolites in plants.

This work set out to examine the methodologies of dry hopping, compare different hop materials, and look at the extraction behavior of different types of hop compounds. This work consists of two discrete studies, where the first study informed the design of the second. The first study measured the concentrations of hop aroma compounds extracted from Cascade hops during dry hopping using a model beer system devoid of malt, yeast aromas, and hops. Cascade hops pelletized by four different processors yielded different particle size distributions and pellet densities. These pellets were dosed into a degassed medium (water, 6% v/v ethanol, pH 4.2) and the hop aroma extraction was measured periodically over a one week period. Solid phase micro-extraction (SPME) followed by gas chromatography (GC-FID) was used to analyze the levels of aroma compounds in the extraction medium. Variation in the hop pellet physical properties did not significantly impact the extraction rate of hop volatiles such as linalool, geraniol, limonene and myrcene with one exception. One treatment showed an increased absolute concentration of geraniol. Separately, dry hop aroma extraction was measured over a short time (1 day) at room temperature in an unhopped beer using small-scale (1L), stirred vessels. Irrespective of the hop form (whole or pellet), the concentrations of hydrocarbon terpenes peaked between 3 and 6 hours and subsequently declined, while the concentrations of terpene alcohols continued to increase throughout the 24 hour dry hop extraction. The rate of hop aroma extraction did not appear to be significantly influenced by hop pellet properties and occurred rather rapidly regardless of the hop form. The second study examined the extraction of hop aroma compounds during a pilot brewery scale (~4hL) dry hop treatment. Dry hop treatments consisted of whole cone hops and pellet hops (Cascade cultivar, 2011 harvest) which were dosed into cylindroconical vessels which were either stirred with a pump or left quiescent. Samples were taken for GC-FID and HPLC analysis as well as sensory evaluation at various time points between 30 minutes and 12 days. Polyphenol and alpha acid extraction was highest in a stirred system dosed with pellets. Hop aroma compound extraction was also the highest in the stirred system utilizing pellet hops. The sensory panel rated the stirred pellet samples as having the highest hop aroma, bitterness, and astringency. The results showed that hop flavor from dry hopping can be readily achieved with much shorter contact time than the current 4-12 day industry practice. / Graduation date: 2013

Graduation date: 1995

The object oriented programming style used in the Smalltalk and Actor languages is available in Lisp Machine Lisp, and used by the Lisp Machine software system. It is used to perform generic operations on objects. Part of its implementation is simply a convention in procedure calling style; part is a powerful language feature, called Flavors, for defining abstract objects. This chapter attempts to explain what programming with objects and with message passing means, the various means of implementing these in Lisp Machine Lisp, and when you should use them. It assumes no prior knowledge of any other languages.

The presence of off-flavor compounds in fish represents one of the significant economic problems encountered in aquaculture. These off-flavor compounds are due to the absorption of substances produced by microorganisms. Currently, a number of strategies have been employed to prevent or limit the growth of these microorganisms in recirculating aquaculture system. Therefore, it is important to evaluate the effectiveness of these strategies by monitoring the concentrations of off-flavor compounds in fish. In-vivo solid phase microextraction (SPME), a rapid and simple sample preparation method, allows the monitoring of concentrations of off-flavor compounds in live fish. In this research, geosmin and 2-methylisoborneol (2-MIB), which are produced by cyanobacteria and actinomycetes being the major sources for “earthy” and “muddy” flavors in fish, were selected as representatives. In order to accurately quantify these compounds in fish muscle, two kinetic calibration methods, on-fibre standardization and measurement using pre-determined extraction rate, were used. Results obtained were validated by traditional methods. The detection limit of in-vivo SPME in fish muscle was 0.12 ng/g for geosmin and 0.21 ng/g for 2-MIB, both below the human sensory threshold. Additionally, the binding effect of geosmin and 2-MIB in fish muscle was investigated in details. Facilitated by the agarose gel model, it was proven that binding did not impact the extraction rate under the pre-determined sampling time. Furthermore, an optional sampling position was undertaken by inserting the fibre into the fat tissue found under the fish belly, the results indicating that this method could decrease extraction time by up to two-thirds of its usual time.

Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Food Science." Includes bibliographical references (p. 113-126).