Digital Commons Network^™

Exploring The Impact Of Vented Packaging Configurations On Airflow Patterns And Cooling Consistency For Muskmelons In A Cold Storage Environment, Nur Wafidah Roslan, Namasivayam Navaranjan, Zohrah Sulaiman, Naseem Uddin

ASEAN Journal on Science and Technology for Development

The cooling effect of different vented packaging designs was investigated for packed muskmelons fruits in a commercial cold storage condition. Computational fluid dynamics (CFD) simulation and experiments were used. The airflow pattern, heat transfer and temperature profiles were predicted from simulation and analysed. The CFD results reveal an uneven and low efficient airflow distribution inside a commercially used vented packaging (Box A). This resulted slow cooling of the fruits in Box A. Two newly designed packaging (Box B and Box C) showed better airflow distribution around the fruits and cooled them faster than Box A. The design of Box C …

Evaluation Of Physicochemical Properties Of Chicken Sausages Containing Whey Protein Isolate And Guar Gum, Nur Hamizah Hamid, Namasivayam Navaranjan

ASEAN Journal on Science and Technology for Development

The present work aims to evaluate the physicochemical properties and proximate composition of adding whey protein isolate (WPI) and guar gum (GG) as emulsion gels in chicken sausages formulated with different fat percentages. The fat reduction resulted in products having lower moisture content (p

Preliminary Study On The Effects Of Vinegar As Pre- Treatment For The Oven-Drying Of Pacific Yellowtail Emperor (Lethrinus Atkinsoni) Fillets, Nurisa A. Suhaili, Rafael S. Jamih, Normina A. Abubakar, Jaro O. Ajik, Merilyn Q. Amlani

ASEAN Journal on Science and Technology for Development

This study aimed to assess the impact of various vinegar compositions used as pre-treatment for Pacific Yellowtail Emperor (PYE) fillets during the oven-drying process, with a focus on moisture content and optimal drying conditions. Two types of commercially available vinegar, Superior Vinegar and Datu Puti Vinegar, were compared, and different drying temperatures were evaluated. The investigation revealed that the drying temperature significantly influenced the moisture content of the dried PYE fillets. Among the tested temperatures (40°C, 60°C, and 80°C), the most favorable outcome in terms of moisture content was achieved when fillets were dried at 80°C for a duration of …

Application Of Three Of Selected Medicinal Plant Extracts In Brunei Darussalam To Improve Shelf Life Of Poultry Product, Hazirah Abd Hamid, Namasivayam Navaranjan, Zohrah Sulaiman, Aida Maryam Binti Hj Basri

ASEAN Journal on Science and Technology for Development

Abstract. Bioactive compounds from plant derived in food application become increasingly in demand due to natural and nutritionally safe products. Due to some issues concerning food safety on the excessive use of synthetic preservatives; the present study aims to investigate the natural alternatives to synthetic antimicrobial food additives. The chicken meat’s shelf life was studied by adopting bio-based antimicrobial agents using three of selected native medicinal plants; P. betle, A. catechu, and A. tricolor, against common foodborne pathogens; E. coli, P. aeruginosa, S. aureus, and Salmonella spp. The overall results revealed that, all study extracts possessed antioxidant properties by DPPH …

Byproducts Of Tropical Marine Processing As A Candidate For Industrial Food Ingredients: An Appraisal On Macro And Micronutrients, Abdul Aziz Jaziri, Hajariah Hasanuddin, Rossita Shapawi, Ruzaidi Azli Mohd Mokhtar, Wan Norhana Md. Noordin, Masmunira Rambli, Nurul Huda

ASEAN Journal on Science and Technology for Development

Tropical marine fish is a main raw material for surimi processing plants, including golden threadfin bream (Nemipterus virgatus Houttuyn, 1782) and swallowtail dwarf monocle bream (Parascolopsis eriomma Jordan & Richardson, 1909). After processing, more than 60% of fish are considered as byproducts (i.e., head, viscera, skin, bones, fins and scale), and tend to discard due to poor-utilization. Hence, this paper aims to evaluate macro- and micro-nutrients derived from golden threadfin bream (GTB) and swallowtail dwarf monocle bream (SDMB). The higher content of protein (25.31 ± 0.81%) was observed in the skin part of GTB, followed by the flesh (21.26 ± …

Antioxidant And Antimicrobial Properties Of Yellow Mealworm (Tenebrio Molitor) Protein Concentrates And Hydrolysates Derived From Varied Dietary Regimens, Shyang-Pei Hong, Eng-Tong Phuah, Wey-Lim Wong, Yee-Ying Lee, Teck-Kim Tang, Ali Yassoralipour

ASEAN Journal on Science and Technology for Development

The larval stage of the darkling beetle, Tenebrio molitor, often referred to as the yellow mealworm, has received significant attention as a promising source of high-quality protein for human consumption due to its exceptional nutritional profile. This study focused on assessing the antioxidant and antimicrobial activities of protein concentrates and hydrolysates obtained from mealworm specimens raised under distinct dietary conditions. One cohort of mealworms was sustained on food waste comprising rice bran, milled corn, and carrots (self-bred) (SM), while another group was exclusively provided with rice bran (commercially fed) (CM). Enzymatic hydrolysis of mealworm protein was accomplished using protease enzymes …

Release Behavior Of Butterfly Pea Anthocyanins From Sago Starch Micro-Composite Films Under Food Stimulants, Afiqah Nabihah Ahmad, Eng Tong Phuah, Namasivayam Navaranjan, Syazana Abdullah Lim

ASEAN Journal on Science and Technology for Development

This study investigates the release behaviour of Butterfly Pea (BP) anthocyanins from Sago starch micro-composite (SMC) films in the presence of food stimulants. To comprehensively describe the release profiles of BP from SMC, six well-established kinetic release models were employed which includes Korsmeyer-Peppas, zero-order, first-order, second-order, Higuchi, and Hixson-Crowell models. These models played a crucial role in examining how the release fraction changes over time, facilitating a comprehensive understanding of the release kinetics of BP anthocyanins. Our data analysis revealed a strong conformity with the Korsmeyer-Peppas model, suggesting its applicability in describing the release of BP anthocyanins from SMC. The …

Formulation Of Naturally Flavoured Mineral Water With Curcuma Longa, Zumirra Affno, Aida M. Basri, Beston F. Nore

ASEAN Journal on Science and Technology for Development

Natural, organic flavoured beverages have become an increasingly important market in the food industry due to flavour and sensory requirements among consumers. Throughout human history, herbs and spices provide a spectrum of natural food flavouring, which became an eminent component of food preparations worldwide. However, their applications in beverages have not been fully exploited. The main objective of this study is to develop flavoured water formulation based on organic turmeric extracts from flower, leaf, and rhizome parts. We adhered the natural mineral water flavouring integrity at refrigerated storage condition (4oC) for a period of 12 weeks. The flavoured water was …

Food Labelling Practices Of Local Products In Brunei Darussalam, Asrarul A. Noraidi, Zikri Zulkifli, Aida M. Basri, Ernina Rani, Beston F. Nore

ASEAN Journal on Science and Technology for Development

Food labelling is an essential feature for food product marketing and is mainly regulated by national food authority. Food package labelling provides information on product composition, usage instructions, shelf-life safety, storage conditions, and nutritional profile. The purpose of this study is to review the scope of the current food labelling system used in local food products. We surveyed 3 different food categories: 1) processed meat products, 2) bread, and 3) snacks, and examined the nutritional labelling criteria with respect to the carbohydrates, protein, and particularly sodium (salt) content. A broad market survey was carried out across Brunei and Muara district, …

Protein Content Analysis On Brunei Delicacies: Kelupis Sulang And Sulang Fruit, Siti Nadia Saifullzan, Jhoorhanah A. Halim, Mas M. Rambli, Aida M. Basri

ASEAN Journal on Science and Technology for Development

Traditional Bruneian delicacy which are often reserved for special occasions; called the kelupis Sulang made from glutinous rice, coconut milk, and the flesh of the Brunei Sulang fruit’s protein content were studied. The protein content of both kelupis and the sulang fruit were examined using both qualitative and protein concentration analyses. The analysis was performed using the Xanthoproteic test, Ninhydrin test, Sulphur Reduction test, and the Biuret test. The readings were obtained from the UV-Visible Spectrophotometry and revealed an average protein concentration of 21 mg/ml in aqueous extracts of kelupis sulang and 26.8 mg/ml in aqueous suspension of kelupis sulang …

Nutritional Quality Of Cultured Giant Freshwater Prawns (Macrobrachium Rosenbergii), Nurul F.M.S. Rizal, Najeebah A. Tashim, Zuhairi Azahari, Aida M. Basri, Tiong H. Lim, Aqilah Junaidi, Suriayati Chuprat, Seno A. Putra, Hanif Fakhrurroja

ASEAN Journal on Science and Technology for Development

Macrobrachium rosenbergii, or the giant freshwater prawn has high market demand due to its exceptional nutritional value for the human diet. Often, most nutritional studies focus on the edible prawn parts, rather than the prawn discarded components. The nutritional evaluation of different prawn parts can provide insights into the nutrient composition and guiding for the development of value-added products. Three groups of prawn samples were collected from 3 different ponds, representing different prawn sizes. The water quality analysis of each pond was also conducted to determine the extent to which it can affect the nutritional composition. The conventional and biochemical …

Parametric Study Of The Effect Of Increased Magnetic Field Exposure On Microalgae Chlorella Vulgaris Growth And Bioactive Compound Production, Sharanabasaweshwara Asundi, Sanurag Rout, Simone Stephen, Sanghamitra Khandual, Sandipan Dutta, Sandeep Kumar

Mechanical & Aerospace Engineering Faculty Publications

This parametric study aimed to analyze the effects of increased magnetic field exposure (MFE) on the growth and production of the bioactive compounds of Chlorella (C.) vulgaris. With the intent of studying the effect of an increased MFE, the magnetic field typically experienced by life on Earth was amplified by an order of magnitude. In the increased-MFE environment, six treatments of C. vulgaris with two repetitions for each treatment were exposed to a magnetic field of 5 Gauss (500 µT) about each axis, which was generated in a state-of-the-art Helmholtz cage. The treatments and the control were characterized by the …

Probiotics-Encapsulated Hydrogel Beadsfor Functional Food Applications, Korlid Thinkohkaew

Chulalongkorn University Theses and Dissertations (Chula ETD)

The growing application of probiotics in functional food products has highlighted the need to preserve their viability and stability throughout gastrointestinal transit and storage. This study aims to address these issues by developing and optimizing biopolymer-based hydrogel beads using a vibrational nozzle-assisted ionic gelation method. Initially, probiotics were encapsulated in chitosan-coated alginate/gellan gum microcapsules using a vibrational nozzle-assisted ionic gelation method. The encapsulation process was optimized via response surface methodology, achieving high encapsulation efficiency (97.35%) under optimal conditions (0.6% gellan gum, 1.61% CaCl2, and a flow rate of 9.84 mL/min). The optimized microcapsules demonstrated strong tolerance to simulated gastric fluid …

Development Of Porous Poly(Methylmethacrylate) Beads For Toxic Cytokine Removal Application, Nutchanon Putthabucha

Chulalongkorn University Theses and Dissertations (Chula ETD)

Sepsis is a vital cause of death globally, primarily due to the uncontrolled secretion of cytokines that disrupt homeostasis. Hemoperfusion is an extracorporeal blood purification technique to treat sepsis that is uncomplicated and effective. The adsorbent material is the essence part of this technique. Since it has to direct contact with blood, the material requires necessary properties, including hemocompatibility, biocompatibility, mechanical stability, etc. Here in this thesis, we developed a new adsorbent material for hemoperfusion using PMMA beads suspension polymerization. Five different porogens, including ethyl acetate, tributyrin (short-chain triglycerides), MCT oil (medium-chain triglyceride), soybean oil (long-chain triglyceride), and toluene were …

Process Simulation And Techno-Economic Evaluation Of Free Lutein Production From Marigold Flowers, Yada Meayrin

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lutein is a carotenoid widely recognized for its health benefits, including improved vision, cognitive function, and prevention of age-related diseases. This study presents a comprehensive techno-economic and environmental assessment of three crude free lutein production processes using marigold flowers (Tagetes erecta L.) at a processing capacity of 74 tons/year, modeled in Asplen Plus V.11. The evaluated processes include sequential extraction and de-esterification (SQP) using hexane (HEX) or liquefied dimethyl ether (LiqDME), and a one-step simultaneous extraction and de-esterification (SMP) using LiqDME. Among these, the SMP-DME process demonstrated the best performance, with a net present value (NPV) of 146.98 million US$, …

Stakeholder Information Interdependence Mapping For Area-Business Continuity Management: A Case Study Of Flood In Industrial Areas In Thailand, Penpitcha Arayachookiat

Chulalongkorn University Theses and Dissertations (Chula ETD)

The great flood of 2011 in Thailand significantly disrupted supply chains and caused substantial economic damage. The concept of Area-Business Continuity Management (Area-BCM) was developed. This concept aims to enable vulnerable areas to maintain operations during crises. This research focuses on understanding the information interdependence among stakeholders involved in Area-BCM. Its objective is to develop an information interdependence map for Area-BCM, using a case study of flood events in three industrial areas in Phra Nakhon Si Ayutthaya Province. The study employed a qualitative research approach, collecting and analyzing data through in-depth interviews with various stakeholders. The data analyzed was then …

A Simple, Inexpensive Alkaline Method For Bacterial Dna Extraction From Environmental Samples For Pcr Surveillance And Microbiome Analyses, Abdulkarim Shwani, Bin Zuo, Adnan Alrubaye, Jiangchao Zhao, Douglas D. Rhoads

Poultry Science Faculty Publications and Presentations

DNA extraction for downstream molecular diagnostic applications can be an expensive, time-consuming process. We devised a method to quickly extract total bacterial DNA from environmental samples based on the sodium hydroxide lysis of cells with or without capture by magnetic beads for subsequent PCR or quantitative PCR. The final DNA extraction method using NaOH is extremely low-cost and can be completed in as little as 10 min at room temperature with dilution, or the DNA can be further purified using silica-coated paramagnetic beads. NaOH extraction was effective for Gram-negative and Gram-positive bacteria in samples from air, soil, sewage, food, laboratory …

Adaptation Of Conventional Wheat Flour Mill To Refine Sorghum, Corn, And Cowpea, Michael Joseph, Sajid Alavi, Akinbode A. Adedeji, Lijia Zhu, Jeff Gwirtz, Shawn Thiele

Biosystems and Agricultural Engineering Faculty Publications

This study evaluated the refinement of sorghum, corn, and cowpea grains using the processing steps and equipment originally designed for wheat milling that consists of a conventional gradual reduction system. The need to mill these grains resulted from a desire to produce alternative ingredients for developing new fortified blended extruded foods used for food aid programming. Milling of white sorghum grain resulted in a crude protein content of 7.4% (wb) for both whole and coarse-milled flour. The crude protein content in whole fine-milled sorghum was 6.8% (wb), which was significantly lower than that of whole coarse flour at 9.3% (wb). …

Implications Of Nanopesticides On Downstream Wetland Ecosystems, Kiley Power

Theses and Dissertations--Biosystems and Agricultural Engineering

Nanopesticides are thought to be a promising course of action for reducing agricultural impacts on the environment, however, little is known regarding the fate and transport of nanopesticides, specifically their influence on downstream wetland ecosystems. The objective of this study was to assess the implications of a nano-Cu fungicide (Kocide 3000) and a neonicotinoid insecticide (imidacloprid) on downstream wetland habitats, particularly their effects on wetland nutrient cycling, using fifteen mesocosm wetlands. The complex interactions between nitrogen, Kocide 3000, and imidacloprid were found to increase nitrate removal rates, decrease phosphate removal rates, and inhibit nitrogen uptake in below-ground biomass. Each treatment, …

Valorization Of Bourbon Distilling Waste Using Thermal Conversion Processes For Nutrient-Rich Food Products, Tosin Olayemi Olanrewaju

Theses and Dissertations--Biosystems and Agricultural Engineering

The Commonwealth of Kentucky accounts for over 95% of global bourbon production. A primary byproduct of bourbon production is stillage, which has a very high moisture content (91–94%) and high biochemical oxygen demand, making it challenging to manage. The recent expansion of the bourbon industry has heightened environmental concerns regarding the best methods to handle this byproduct. Dewatering and drying of stillage produce distillers' spent grains (DSG-B), which are rich in dietary fiber and protein and could serve as an excellent source of functional fiber in human nutrition.

This study examined the approach for dewatering, drying, inclusion of DSG-B as …

Energy Content Of Acorns Of Shinnery Oak (Quercus Havardii) In The Diet Of Scaled Quail (Callipepla Squamata) In Southeastern New Mexico, J.L. Hunt, M.E. Grilliot, T.L. Best, D. Lozano-Lopez, E.R. Neilson, I.C. Castillo

Journal of the Arkansas Academy of Science

Shinnery oak (Quercus havardii) is a deciduous, low-growing shrubby tree that is a dominant plant in large areas of grassland in western Oklahoma, the Texas Panhandle, and eastern New Mexico. Acorns of the plant are important food items for many wildlife species, including scaled quail (Callipepla squamata), mourning doves (Zenaida macroura), and endangered lesser prairie-chickens (Tympanuchus pallidicinctus). We analyzed the energy content of acorns of shinnery oak obtained from the crops of scaled quail collected from plains-mesa sand-scrub in Lea and Eddy counties, New Mexico. Acorns were removed from crops and dried for 48 hours at 60°C to remove moisture …

Machine Learning Applications In Spine Biomechanics, Farshid Ghezelbash, Amir Hossein Eskandari, Xavier Robert-Lachaine, Shufan Cao, Mehran Pesteie, Zhuohua Qiao, Aboulfazl Shirazi-Adl, Christian Larivière

Études primaires

Spine biomechanics is at a transformation with the advent and integration of machine learning and computer vision technologies. These novel techniques facilitate the estimation of 3D body shapes, anthropometrics, and kinematics from as simple as a single-camera image, making them more accessible and practical for a diverse range of applications. This study introduces a framework that merges these methodologies with traditional musculoskeletal modeling, enabling comprehensive analysis of spinal biomechanics during complex activities from a single camera. The real-world applications explored in this study include assessment in workplace lifting, evaluation of whiplash injuries in car accidents, and biomechanical analysis in professional …

Unlocking Antioxidant Potential: Comparative Analysis Of Sembada 188 And Keladi Rice As Functional Ingredients In Novel Food Production, Mas Munira Rambli, Natasha Azamain, Eng-Tong Phuah

ASEAN Journal on Science and Technology for Development

Rice (Oryza sativa L.) is an essential crop that is a dietary staple for more than half of the world's population. There is currently a movement in consumer behaviour toward healthier food consumption, which is fuelling interest in functional diets like coloured rice. Sembada 188 and Keladi rice are underutilised in Brunei Darussalam and are expected to have functional qualities. A comparison of antioxidant properties between Sembada 188 and Keladi rice was performed in this study. This research produced puffed rice treats prepared by steaming rice, washing, drying for 6-8 hours at 60℃, deep frying for 25 seconds at 180℃, …

Cellular Level Changes Induced In Cancer Cells Due To Microgravity, Sai Deepika Reddy Yaram

Graduate Theses, Dissertations, and Problem Reports (ETD)

The increase in human activity in space has revealed several kinds of physiological challenges brought on by the absence of Earth's gravitational pull. NASA observed that during spaceflight, astronauts experience a 1-1.5% monthly loss in the mineral density of weight-bearing bones, with rehabilitation efforts on Earth often proving ineffective. This issue extends to muscles, the neuro vestibular system, the cardiovascular system, and vision. Cancer has emerged as a significant cause of mortality among astronauts, with studies up to 2017 showing that 41.3% of natural cause deaths among U.S. astronauts were due to cancer, primarily due to space radiation exposure. Cancer …

Development Of Fungal Hydrogels For 3d Bioprinting And Cellular Agriculture, Lauren E. Doyle

Theses and Dissertations--Biosystems and Agricultural Engineering

Hydrogel scaffolds are an important component to cellular agriculture. There is a need for a sustainable alternative to the commonly used gelatin-sodium-alginate hydrogels. Specific edible fungus species may provide a suitable alternative. Many fungi possess high protein contents, ease of cultivation, and strong functional properties. However, functional characterizations and application of fungal flour and protein extracts in cellular agriculture are lacking in the literature. Therefore, this study’s objectives were to 1) Develop processes to create functional fungal protein fractions from different fungal strains and evaluate their characteristics, and 2) Quantify the printability of the resulting fungal gels for the creation …

Assessing Household Gac Water Filters For Pfas Removal From Private Drinking Water Wells, Mccallah Ferry

Williams Honors College, Honors Research Projects

This research paper delves into the efficacy of a typical household water filter in removing per- and polyfluoroalkyl substances (PFAS), a concerning class of chemicals prevalent in water sources. PFAS, known for their persistence and potential health risks, have prompted regulatory actions such as the Third Unregulated Contaminant Monitoring Rule (UCMR 3) and the National Primary Drinking Water Regulation (NPDWR) by the U.S. EPA. While municipal water utilities are subject to regulatory oversight, individuals relying on private wells face challenges in ensuring water quality.

The study employs a model to assess the performance of a SAMSUNG Ice and Water Refrigerator …

A Survey Of Strongyle Nematodes In New England Dairy Goats, D.J. Richardson, E.M. Wray, D. Watters, U. Hanif, E. Jalbert, E. Thompson, G. Trajkovic, A.R. Sirois, N. Pilotte

Journal of the Arkansas Academy of Science

The paucity of information concerning the occurrence of strongyle nematodes in New England dairy goats prompted a survey of 241 dairy goats from throughout New England. Of the 241 goats examined using the McMaster technique, 104 (42.7%) were infected with strongyles with a mean intensity (+ SE) of 369.7 + 45.8 eggs per gram. Subsequent molecular examination of 50 random samples from these goats revealed a prevalence of 88% infection specifically with Haemonchus contortus. Haemonchus contortus is the most important internal parasite of sheep and goats, exerting a crushing economic burden on the livestock industry worldwide due to lowered milk …

An Overview Of The Relationships Between The Food Industry And Nanotechnology, Mehdi Koushki, Nasrin Amiri-Dashatan, Hossein Pourghadamyari, Hadi Khodabandehloo, Fatemeh Bagheri, Masoumeh Farahani, Lobat Tayebi

Electrical & Computer Engineering Faculty Publications

Background and Objective: Due to the growth of the global population, food demands are increasing. Hence, the need to develop more efficient methods for producing better quality, safer, and more sustainable food seems essential. In the past decades, the use of nanoscale materials has increased greatly due to the unique chemical, physical, and biological characteristics of nanomaterials compared to bulk materials. This research presents nanotechnology role in improving sensorial properties (taste, appearance, and texture) and safety aspects as well as processing and packaging of foods. The use of nano-omics-based technologies and artificial intelligence-nanotechnology-based technologies in the food industry is also …

Dental Students’ Psychological Stress: A Comprehensive Investigation Of Stress Inducing Factors At Mohammed Vi University Of Sciences And Health, Latifa El Mouden, Elmehdi Fettach

Health Sciences

Dental students are significantly confronted with mental health problems. We conducted a prospective recruitment of students at the Faculty of Dentistry of the Mohammed VI University of Sciences and Health to investigate the determinants of stress specific to this population in order to find solutions to improve their quality of life. In our study, 410 students responded to the survey, the average age of the students was 21.51 ± 2.102 years, 70% were female, 30% were in their 6th year, and 60% of the students were from Casablanca. The average MSP-25B score was 101.94 ± 33.035. In our study, there …

Highlighting Opportunities For Anaerobic Co-Digestion Of Food Waste From Universities With Pulp And Paper Mill Sludge, Md Nizam Uddin

College of Graduate Studies: Theses & Dissertations

The disposal of food waste (FW) in landfills presents significant environmental and economic challenges, including greenhouse gas emissions and loss of potential resources. Concurrently, the pulp and paper industry, a major sector in the United States, generates substantial quantities of recalcitrant organic waste that is high in lignocellulosic content. Anaerobic co-digestion of FW with pulp and paper mill sludge (PPMS) emerges as a potential strategy to address both waste streams simultaneously, potentially enhancing organic matter degradation and biogas yield. However, the efficacy of this co-digestion approach and its broader sustainability implications remain insufficiently characterized. This study employs laboratory-scale experiments to …