Digital Commons Network^™

Ultrasound Assisted Enzymatic Hydrolysis Combined With Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry For Determination Of Lutein And Natural Vitamin K Homologues In Poultry Eggs, Cai Zhenlin, Li Tao

Food and Machinery

[Objective] To develop an ultra -high performance liquid chromatography -tandem mass spectrometry (UPLC -MS/MS ) method for determining lutein and natural vitamin K (VK) homologues, including phylloquinone (VK1), menaquinone -4 (MK-4), menaquinone -7 (MK-7), and menaquinone -9 (MK-9), in poultry eggs by optimizing ultrasound assisted enzymatic hydrolysis. [Methods] The target compound is extracted from poultry egg samples by ultrasound assisted enzymatic hydrolysis and then separated on C18 (100 mm ×2.1 mm, 3.0 μm) column with 0.1% formic acid aqueous solution -0.1% formic acid methanol for gradient elution.Meanwhile, the samples are quantified by external standard with APCI source for detection and …

Defects Of The Criminal Law On Food Safety And Its Improvement, Hu Weichen, Yu Dehou

Food and Machinery

From the perspective of China's criminal law practices and their effectiveness in addressing food safety issues, the main deficiencies in the current criminal regulation of food safety in China are manifested in three areas:the unreasonable classification of offenses within chapters, the absence of provisions for negligent crimes, and the lack of a mandatory qualification penalty, along with the rigidity of the prohibition order.In response, this article proposes improvement to the current criminal regulation of food safety by reasonably determining the classification of offenses within chapters, scientifically adding specific provisions for negligent crimes, and optimizing the design of the qualification penalty …

Effect Of Distillation Equipment On The Aroma Quality Of Crude Distilled Jujube Wines, Fang Qiang, Feng Zuoshan, Bai Yujia, Alimire Yibulayin, Yan Yahui

Food and Machinery

[Objective] To explore novel distillation equipment and address the adverse effect of burnt tastes in the wines caused by excessively high distillation temperatures of traditional equipment. [Methods] Three types of low -temperature distillation equipment, self -developed in the laboratory, along with pot distillation equipment, are used to distill jujube wines.The volatile components in the crude distilled jujube wines are analyzed using gas chromatography -mass spectrometry (GC-MS). [Results] A total of 74 compounds are identified in the crude distilled jujube wines, including 44 esters, 8 alcohols, 5 acids, 6 aldehydes, 4 ketones, and 7 other compounds.An orthogonal partial least squares discriminant …

Optimization Of Preservation Process And Quality Analysis Of Leisure Dried Tofu By Linalool Synergized With Surfactin, Yuan Chi, Wang Yujie, Huang Zhanrui, Hu Lianhua, He Wanying, Chen Hao

Food and Machinery

[Objective] This study developed a preservation process for leisure dried tofu (LD-tofu) by using natural antimicrobial agents, Surfactin and linalool, to replace chemical preservatives. [Methods] The minimum inhibitory concentration (MIC ) of Surfactin and linalool was determined with Bacillus subtilis as the indicator bacteria, and aerobic plate count and sensory score were used as the evaluation indicators to optimize the optimal preservation process parameters of linalool and Surfactin for LD -tofu through single -factor and response surface experiments, and the quality changes of LD -tofu during storage were analyzed. [Results] The minimum inhibitory volume fraction of linalool was 1.95 μL/mL, …

Effects Of Different Treatments On Phenolic Content And In Vitro Antioxidant Activity In Black Highland Barley, Zhang Jie, Zheng Wancai, Dang Bin, Yang Xijuan, Guo Junling

Food and Machinery

[Objective] To improve the polyphenol utilization and antioxidant activity of black highland barley. [Methods] Black highland barley was treated using ultrasonic treatment (UT), microwave treatment (MT), and ultraviolet irradiation treatment (UVT ).The differences in basic nutritional components, phenolic content, phenolic composition, and antioxidant activity were comparatively analyzed. [Results] Compared with the untreated group, the fat content of black highland barley significantly increased (P<0.05) after all three treatments, while the fiber content significantly decreased (P<0.05).The total phenolic and total flavonoid content were significantly increased (P<0.05) by all three treatments, reaching 1.03~1.19 times and 1.24~1.46 times those of the untreated group, respectively.Among them, UT significantly enhanced polyphenol content in black highland barley, increasing total phenolics and total flavonoids by 18.72% and 46.22%, respectively.UVT mainly increased hydroxycinnamic acids and flavonols, UT primarily increased flavonoids and flavanols, while MT mainly increased hydroxybenzoic acids.The antioxidant potency composite index (APC ) of black highland barley treated by the three methods ranked as follows:UT (99.94%)>UVT (93.35%)>MT (82.91%)>CK (74.10%).There was a strong correlation between phenolic compounds and antioxidant activity. [Conclusion] UT resulted in the highest phenolic content and antioxidant activity in black highland barley.

Formulation Optimization And Flavor Characteristics Of Functional Rice Cake, Shi Jiacheng, Wu Yingying, Shen Cunkuan, Zhang Huien, Yang Hua

Food and Machinery

[Objective] To develop a novel functional rice cake with enhanced nutritional value and improved flavor, achieving a health -conscious modification of traditional rice cake formulation. [Methods] Japonica rice flour was used as the base substrate, supplemented with co -fermentation of plant lactic acid bacteria and brewing yeast.The composite ratio of flaxseed meal (7%) and chickpea meal (5%) was optimized by single -factor experiments combined with principal component analysis (PCA ).The effects of the improved formulation on product quality, nutritional composition, in vitro digestion characteristics, antioxidant activity, and flavor profile were systematically evaluated. [Results] The optimized rice cake maintained whiteness while …

Process Optimization For Microbial Solid-State Fermentation Of Euryale Ferox And Antioxidant Activity Analysis, Chen Yalan, Chen Shunxin, Hou Heli, Chen Weili, Zhu Jing

Food and Machinery

[Objective] To improve the transformation of functional components in the Euryale ferox by microbial solid -state fermentation. [Methods] Euryale ferox is taken as the raw material to screen out the dominant strains, with the total flavonoid and total polyphenol content as indicators.Then, orthogonal experiments are conducted on the dominant bacteria to investigate the effects of fermentation temperature, fermentation time, material -liquid ratio, inoculation amount, and carbon source addition amount on the active components of the fermented Euryale ferox.The in vitro antioxidant activity of Euryale ferox is analyzed, with DPPH free radical scavenging rate, total antioxidant activity, and ABTS free radical …

Effect Of Different Roasting Durations On Volatile Flavor Substances Of Red Oil Pepper, Yan Liqiang, Yi Yuwen, Xiong Yiling, Hou Zhiyong, Qiao Mingfeng

Food and Machinery

[Objective] To explore the effect of different roasting durations on the volatile flavor substances of red oil pepper. [Methods] Sensory evaluation, electronic nose, and gas chromatography -mass spectrometry (GC-MS) were used to analyze the sensory characteristics, color difference, and volatile compounds of red oil pepper roasted for different durations (0, 30, 45, 60, 75, and 90 s).Relative odor activity value (ROAV ) and partial least squares discriminant analysis (PLS-DA) were employed to identify the key flavor compounds in the six types of red oil pepper. [Results] The overall flavor of red oil pepper prepared for different durations showed significant differences.A …

Effects Of Different Siritch And Corn Oil Ratios On Walnut Cake Quality, Han Yumeng, Xin Yuan, He Xinyi, Zhang Sumei, Liao Zhenyu

Food and Machinery

[Objective] To investigate the effects of siritch -corn oil ratio on walnut cake quality. [Methods] Gradient experiments were conducted to analyze the sensory and physicochemical characteristics of walnut cake.Quality under different ratios was comprehensively assessed using sensory evaluation, texture analysis, electronic nose measurements, and gas chromatography -mass spectrometry (GC-MS), combined with determination of moisture content, acid value, and peroxide value. [Results] When the siritch -corn oil ratio was 1∶1, walnut cake achieved the highest sensory score of 82.8, exhibiting golden color (high L* and b* values ), rich aroma, balanced texture, excellent moisture uniformity, and the highest semi -bound water …

Microbiological Characteristics Of Kluyveromyces Marxianus And Its Application In Fermented Foods, Ji Xin, Zhang Yuhang, Huang Weining, He Shan, Tang Xiaojuan

Food and Machinery

Kluyveromyces marxianus is a GRAS -classified fungal microorganism, renowned for its capacity to generate both conventional and specialized enzymes, as well as its function as a vector for the expression of specific enzymes.In the food industry, K.marxianus serves as a fermentation agent capable of effectively controlling the fermentation process and significantly enhancing the quality of fermented foods.This article systematically analyzes the microbiological characteristics of K.marxianus, reviews its application in the fermentation of products such as fruits and vegetables, dairy, grains, meat products, and alcoholic beverages, and explores its potential application in the future food industry.

Research Progress On Physiological Activities , Extraction , And Applications Of Bamboo Shoot Protein, Dai Nana, Chen Jun, Shuai Xixiang, Han Jialong, Dai Taotao

Food and Machinery

In recent years, plant proteins have become highly sought -after ingredients in health foods due to their wide range of sources, high nutritional value, low cost, and minimal environmental pollution.Bamboo shoot protein is abundant in resources and features a well -balanced amino acid composition.It possesses good solubility, oil-holding capacity, foaming ability, antioxidant activity, and anti -tumor activity, playing a significant role in the prevention and treatment of cardiovascular diseases, cancer, and other illnesses.However, under the conventional processing model from harvesting to final product, a large quantity of inedible by -products is discarded, and the complex high -fiber structure of bamboo …

Research Progress Of Adulteration Identification Indexes For Camellia Seed Oil, Zhang Xiaofei, Peng Xinyan

Food and Machinery

Camellia seed oil, valued for its nutritional and economic benefits, is frequently adulterated with lower -grade oils.Additionally, its quality is influenced by multiple factors, including cultivar, geographical origin, and extraction techniques.This review systematically evaluates key analytical indexes for camellia seed oil authentication, focusing on sensory characteristics, physicochemical characteristics, spectral recognition characteristics, and comparison with different methods.From an integrated perspective of identification indexes, collection methods, and identification logic, this paper reviews the research progress of portable UV spectrometers (particularly fiber -optic -based systems ) in technical performance and application scope.

Preparation And Characterization Of Composite Edible Film Based On Soy Protein Isolate , Whey Protein Concentrate , And Arctium Lappa L. Polysaccharide And Its Application In Morchella Preservation, Song Hao, Feng Xiyao, Wei Jiayi, Liu Xuanrong, Lu Naiyan

Food and Machinery

[Objective] To develop an active edible film based on soy protein isolate (SPI), whey protein concentrate (WPC ), and Arctium lappa L.polysaccharide (ALP ) by using the casting method. [Methods] This study characterizes the surface morphology, tensile strength (TS), elongation at break (EAB ), water solubility (WS), moisture content (MC), water vapor permeability (WVP ), and light transmittance of the composite film.It also systematically investigates the impact of different ALP proportions on film properties.The optimal ratio for the film is identified, and its performance in Morchella preservation is evaluated. [Results] When the mass ratio of SPI/WPC to ALP is 1.0∶0.2, …

Method And Practice Of Functional Extension Design For Fruit And Vegetable Packaging, Wang Liheng, Ding Qian

Food and Machinery

This paper explains the current problems and challenges faced by fruit and vegetable industry in China, and proposes the solution strategies of functional extension design for fruit and vegetable packaging.The methods and processes of fruit and vegetable packaging functional extension design are summarized from the four dimensions of packaging vision, structure, material and technology by systematically analyzing the theoretical research and excellent design cases of fruit and vegetable packaging functional extension in China and abroad, and are applied to the packaging design practice of seasonal fruit litchi.

Investigation Of The Flow Field Morphology Of Film Cooling In Supersonic Flow, Umberto Sandri, Massimiliano Ferro, Alessio Picchi, Antonio Andreini, Bruno Facchini, Marc D. Polanka

Faculty Publications

Film cooling is widely implemented in highly thermally stressed gas turbine components. Its performance has been extensively investigated for several decades and many results are available in the literature. In conventional gas turbines, regions of supersonic flow are not prevalent and should generally be avoided. For this reason, results relative to film cooling in supersonic flow are limited. Nevertheless, a new interest related to Rotating Detonation Combustors (RDC) and supersonic turbines is growing. The implementation of those engine components in a gas turbine is likely to need film cooling for thermal protection. In this context, it becomes crucial to gain …

Acceptability, Appropriateness, Willingness To Use, And Perceptions Towards Hiv Self-Testing Among Adolescent Girls And Young Women In Rural Northern Uganda: A Baseline Formative Cross-Sectional Study, Ronald Olum, Morrish Obol Okello, Freddy Eric Kitutu, Elvin H Geng, Philippa Musoke

2020-Current year OA Pubs

BACKGROUND: Adolescent girls and young women (AGYW) in Uganda are at higher risk for and bear a significant HIV burden, accounting for 25% of new infections. Despite improved HIV testing services, AGYW in rural areas face barriers to facility-based testing due to stigma, physical access barriers, and confidentiality concerns. This study assessed the acceptability, appropriateness, willingness to use, and perceptions of HIVST among AGYW in Northern Uganda.

METHODS: This cross-sectional study was part of a baseline assessment for a quasi-experimental trial evaluating community-led HIVST among AGYW aged 15-24 years in 5 sub-counties in Omoro District. Data were collected using systematic …

Enhancing Graduate Employability Through The Role Of The School Career Center (Bursa Kerja Khusus) At Smkn 1 Bandung, Dwi Purwanto, Didik Nurhadi, Widiyanti Widiyanti

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study examines the role of the Bursa Kerja Khusus (BKK) in enhancing graduate employability at SMKN 1 Bandung. Using a qualitative descriptive design, data were collected through interviews with BKK staff, teachers, alumni, and industry partners, supported by observations and document analysis. The findings reveal that BKK functions as a strategic bridge between school and industry by providing digital job information services, facilitating structured recruitment processes, and maintaining strong industry partnerships. These practices effectively support graduates’ transition into the workforce. However, challenges persist, particularly related to limited soft skills and occasional mismatches between school competencies and industry demands. Supporting …

Effectiveness Of Drill And Imitation Methods In The Application Of Canon And Broken Design Techniques In Feto Hitu Dance, Kadek Paramitha Hariswari, Natalsya Vandana Sape

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study was motivated by the need to identify effective dance learning methods that enhance dancers’ technical and aesthetic abilities, particularly in applying canon and broken design techniques to creatively reconstructed traditional dances. The purpose of this research is to analyze the effectiveness of the drill and imitation methods in developing dancers’ ability to apply canon and broken techniques in the Feto Hitu dance. The study employed a qualitative descriptive approach using field action methods. Data were collected through observations of the training process, interviews with instructors and dancers, and video documentation at the Dance Studio of the Music Education …

A Force Of Leadership: The Ron Mclaughlin Story, Leahcim Powell

Night Flight: Online Literary Journal

This narrative explores the personal and professional evolution of Ron McLaughlin, an Army Apache helicopter mechanic whose relentless work ethic is shaped by a lifelong fear of failure. Growing up in West Palm Beach, Florida, Ron learns early that discipline–not luck–opens doors, a belief that follows him into military service, where structure and high expectations feed both his ambition and his anxiety. The story follows Ron's journey as he excels in his technical craft, while wrestling with the internal pressure to be perfect, ultimately realizing that leadership extends beyond personal achievements. A pivotal mistake made by a junior soldier under …

Citizens Bank Of Jacksonville Statement Slips

Eartha M. M. White Textual Material

Document: Statement slips from Citizens Bank of Jacksonville with handwritten notes. Undated.

R. F. Bowden, Tax Collector Payment Form

Eartha M. M. White Textual Material

Document: Payment form to the order of R. F. Bowden, Tax Collector, Jacksonville, Florida. Handwritten on reverse: R. E. Kimmell. Undated.

You Are Invited To Open A Charge Account That Builds Dollars Banking Brochure

Eartha M. M. White Textual Material

Brochure: The Citizens Bank of Jacksonville brochure regarding opening a charge account. Undated.

Letter To Editor From Mr. And Mrs. Laudermilk, Henry Laudermilk

Bob Schieffer Vietnam War Collection

Letter to the city editor of the Fort Worth Star-Telegram from Mr. and Mrs. Henry Laudermilk about their son, Tommy L. Laudermilk, in Vietnam, December 27, 1965.

Letter To Editor From Mrs. Larkin

Bob Schieffer Vietnam War Collection

Letter to the city editor of the Fort Worth Star-Telegram from Mrs. W. W. Larkin about her son, William W. Larkin III, in Vietnam, December 27, 1965

Letter To Editor

Bob Schieffer Vietnam War Collection

Letter to the city editor of the Fort Worth Star-Telegram from L. Arch [Wayman] about Captain [Roland Jary] in Vietnam, January 4, 1966.

Letter To Bob From Rita, Rita Lacy

Bob Schieffer Vietnam War Collection

Letter to Bob Schieffer from Rita Lacy about her son, Michael J. Lacy, in Vietnam, January 12, 1966.

Letter To Editor From Mr. Hunn, Oliver Wheatly Hunn

Bob Schieffer Vietnam War Collection

Letter to the city editor of the Fort Worth Star-Telegram from O. W. Hunn about his son, Van T. Hunn, in Vietnam.

Letter To Bill From Mrs. Hollenbach, Roy C. Hollenbach

Bob Schieffer Vietnam War Collection

Letter to Bill Hicks, city editor of the Fort Worth Star-Telegram, for Bob Schieffer from Mrs. Roy C. Hollenbach about her son, Roy Gene Hollenbach, in Vietnam, January 18, 1966.

Letter For Bob From Mrs. Horne Jr.

Bob Schieffer Vietnam War Collection

Letter for Bob Schieffer from Mrs. J. D. Horne Jr. about Captain J. D. Horne Jr., December 19, 1965.

Letter To Bob From Mrs. Henderson, Kate K. Henderson

Bob Schieffer Vietnam War Collection

Letter to Bob Schieffer from Mrs. Kate K. Henderson about her husband, Robert D. Henderson, in Vietnam, January 26, 1966.