Food Science Commons^™

Applying Hermetic Storage And Multiple Abiotic-Stressed Germinations To Actuate Desirable Effects In Wheat Phytochemistry, Food, And Biological Functionalities, Bababode Kehinde

Theses and Dissertations--Biosystems and Agricultural Engineering

Wheat is one of the most widely consumed staple foods in the world, supplying both nutritional and caloric requirements for billions of people. The rising global population and increased food demand behooves all stakeholders across the wheat supply chain to significantly increase their output and efficiency. Beyond the target for increased farm yields, dietary, nutritional, and health requirements along with their continuous supply must be satisfied with improved storage and processing schemes. Post-harvest changes in wheat can result in a significant reduction in its quality. Such losses could be qualitative and/or quantitative, impacting its physical, physiological, organoleptic, and nutritional attributes. …

Effectiveness Of Atmospheric Cold Plasma In Inactivating Microorganisms, Nadee Shanika Kaluwahandi

Electronic Theses and Dissertations

In the food processing industry, Cold Plasma (CP) is an emerging green process with a number of potential applications. Cold plasma has mostly been used to reduce microbial counts in foodstuffs and biological materials as well as in different levels of packaging, particularly in cases where there is thermal sensitivity. Recent studies have demonstrated that CP technology is being developed for use in the food and agriculture industries. The primary focus is on the interactions between reactive species and food-borne microbes to inactivate them. The literature review discusses both proven and potential applications for cold plasma in food processing, as …

Polysaccharide-Based Hydrogel Beads For Biological Nitrogen Fixation, Prashant Dahal

Electronic Theses and Dissertations

No abstract provided.

Physicochemical, Technofunctional, In Vitro Antioxidant, And In Situ Muscle Protein Synthesis Properties Of A Sprat (Sprattus Sprattus) Protein Hydrolysate, Niloofar Shekoohi, Azza Silotry Naik, Miryam Amigo Benevent, Padraigin A. Harnedy-Rothwell, Brian P. Carson, Richard J. Fitzgerald

Articles

This study characterized the physicochemical, technofunctional, and in vitro antioxidant properties along with the AA profile and score of a sprat protein enzymatic hydrolysate (SPH). Furthermore, the impact of the SPH on the growth, proliferation, and muscle protein synthesis (MPS) in skeletal muscle (C2C12) myotubes was examined. The SPH displayed good solubility and emulsion stabilization properties containing all essential and non-essential AAs. Limited additional hydrolysis was observed following in vitro-simulated gastrointestinal digestion (SGID) of the SPH. The SGID-treated SPH (SPH-SGID) displayed in vitro oxygen radical antioxidant capacity (ORAC) activity (549.42 μmol TE/g sample) and the ability to reduce (68%) reactive …

The Biological Responses Of Vitamin K2: A Comprehensive Review, Quanxiang Yan, Tao Zhang, Christine O'Connor, James W. Barlow, John Walsh, Gaia Scalabrino, Feng Xu, Helan Sheridan

Articles

Vitamin K1 (VitK1) and Vitamin K2 (VitK2), two important naturally occurring micronutrients in the VitK family, found, respectively, in green leafy plants and algae (VitK1) and animal and fermented foods (VitK2). The present review explores the multiple biological functions of VitK2 from recently published in vitro and in vivo studies, including promotion of osteogenesis, prevention of calcification, relief of menopausal symptoms, enhancement of mitochondrial energy release, hepato-and neuro-protective effects, and possible use in treatment of coronavirus disease. The mechanisms of action associated with these biological effects are also explored. Overall, the findings presented here suggest that VitK, especially VitK2, is …

Validation Of A Diagnostic Marker For Primocane-Fruiting In Blackberry, Isabella Vaughn, Alexander Silva, Carmen Johns, Lacy Nelson, Margaret Worthington

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Typical blackberries (Rubus subgenus Rubus) have perennial crowns and roots and biennial canes. The first-year canes (primocanes) are usually vegetative, while second-year canes (floricanes) produce fruit. Primocane-fruiting blackberries produce fruit on first-year canes and are desirable to growers because they potentially allow for a longer harvest season in temperate regions and enable production in tropical areas where no natural chill hours are accumulated. The development of molecular markers for desirable traits can potentially increase efficiency in blackberry breeding. However, to date, there are no diagnostic molecular markers for economically important traits in blackberries. Primocane-fruiting is recessively inherited, and tetraploid blackberries …

An Inclusive Playground For Infant And Toddler Development, Amanda M. Swartz, Jacquelyn D. Wiersma-Mosley, Donia Timby, Shelley Mcnally, Caitlyn Daniel

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The purpose of this project was to help children reach more developmental goals and to make outdoor play at the Jean Tyson Child Development Study Center more inclusive for all children. Children gain many developmental goals from playing outside and being exposed to other environments as compared to just being inside the classroom. Outdoor play should be as inclusive as indoor play and offer many different activities and outlets, just as the indoor classroom does. The implementation of this service-learning creative project was to add more versatility to the outdoor area at the University of Arkansas Jean Tyson Child Development …

Analysis Of Experimental Antimicrobial Prevention Strategies Against Microbial Contamination Of Locally Harvested Poultry And Produce In West Virginia, Rebecca Breanne Stearns

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fresh produce and poultry have been associated with several foodborne illness outbreaks. Strategies to mitigate these risks are a much-needed research priority; therefore, five experiments were conducted to analyze pathogen cross-contamination capabilities on produce and poultry. Microbial contamination prevention and reduction strategies were also studied.

In Chapter Two, three antimicrobial delivery methods in combination with increasing concentrations of hydrogen peroxide-peroxyacetic acid (H₂O₂-PAA) (0.05-0.25 ml/dL) were compared to evaluate their ability to reduce and prevent cross-contamination of Listeria monocytogenes (L. monocytogenes) and Listeria innocua (L. innocua) on inoculated apples. Apples have been …

Pea Protein Isolate As Emulsifier In Oil-In-Water Emulsion Model System, Mujahid Hassan Khan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Plant protein has been progressively demanded as a new-trend, healthier-choice and bioeconomic ingredient. However, the fundamental and technical knowledge of plant-based protein to understand and improve their structural functions are limited. In this study, pea protein isolate (PPI) were selected to be evaluated its emulsifying role on the formation, stability and tribology of model oil-in-water emulsions. Since PPI is a functional ingredient with hypoallergenic property. Firstly, the emulsifying property of PPI were investigated with corn oil-in-water emulsion systems. The results showed that 1% w/v PPI could stabilize the emulsion system of 5% w/v corn oil at pH7 using the high …

A Review Of Alternative Proteins For Vegan Diets: Sources, Physico-Chemical Properties, Nutritional Equivalency, And Consumer Acceptance, Rutwick Surya Ulhas, Rajeev Ravindran, Alok Malviya, Anushree Priyadarshini, Brijesh K. Tiwari, Gaurav Rajauria

Articles

Alternate proteins are gaining popularity as a more sustainable and environmentally friendly alternative to animal-based proteins. These proteins are often considered healthier and are suitable for people following a vegetarian or vegan diet. Alternative proteins can be recovered from natural sources like legumes, grains, nuts, and seeds, while single cell proteins (mycoproteins), and algal proteins are being developed using cutting-edge technology to grow fungus, yeast and algal cells in a controlled environment, creating a more sustainable source of protein. Although, the demand for alternative protein products is increasing, there still happens to be a large gap in use among the …

Evaluation Of Welded And Polished Stainless-Steel Surfaces In Supporting Sporeformer Biofilms In Dairy Plants, Taghreed Almalki

Electronic Theses and Dissertations

No abstract provided.

Biodiversity Of Philippine Marine Fishes: A Dna Barcode Reference Library Based On Voucher Specimens, Katherine E. Bemis, Matthew G. Girard, Mudjekeewis D. Santos, Kent E. Carpenter, Jonathan R. Deeds, Diane E. Pitassy, Nicko Amor L. Flores, Elizabeth S. Hunter, Amy C. Driskell, Kenneth S. Macdonald Iii, Lee A. Weigt, Jeffrey T. Williams

Biological Sciences Faculty Publications

Accurate identification of fishes is essential for understanding their biology and to ensure food safety for consumers. DNA barcoding is an important tool because it can verify identifications of both whole and processed fishes that have had key morphological characters removed (e.g., filets, fish meal); however, DNA reference libraries are incomplete, and public repositories for sequence data contain incorrectly identified sequences. During a nine-year sampling program in the Philippines, a global biodiversity hotspot for marine fishes, we developed a verified reference library of cytochrome c oxidase subunit I (COI) sequences for 2,525 specimens representing 984 species. Specimens were primarily purchased …

Bilirubin Levels Are Negatively Correlated With Adiposity In Obese Men And Women, And Its Catabolized Product, Urobilin, Is Positively Associated With Insulin Resistance, Zachary A. Kipp, Mei Xu, Evelyn A. Bates, Wang-Hsin Lee, Philip A. Kern, Terry D. Hinds Jr.

Markey Cancer Center Faculty Publications

Bilirubin levels in obese humans and rodents have been shown to be lower than in their lean counterparts. Some studies have proposed that the glucuronyl UGT1A1 enzyme that clears bilirubin from the blood increases in the liver with obesity. UGT1A1 clearance of bilirubin allows more conjugated bilirubin to enter the intestine, where it is catabolized into urobilin, which can be then absorbed via the hepatic portal vein. We hypothesized that when bilirubin levels are decreased, the urobilin increases in the plasma of obese humans, as compared to lean humans. To test this, we measured plasma levels of bilirubin and urobilin, …

Germination And Simulated Gastrointestinal Digestion Of Chickpea (Cicer Arietinum L.) In Exhibiting In Vitro Antioxidant Activity In Gastrointestinal Epithelial Cells, Ashley Newton, Kaustav Majumder

Department of Food Science and Technology: Faculty Publications

Plant-based proteins, in particular pulse proteins, have grown in popularity worldwide. Germination, or sprouting, is an effective method to release peptides and other dietary compounds. However, the combination of germination and gastrointestinal digestion in enhancing the release of dietary compounds with potential health-beneficial biological activity has yet to be entirely elucidated. The present study illustrates the impact of germination and gastrointestinal digestion on the release of dietary compounds with antioxidant activity from chickpeas (Cicer arietinum L.). Germination up to 3 days (D0 to D3) increased the peptide content by denaturing chickpea storage proteins and increased the degree of hydrolysis …

Peanut Allergen Ara H 6 Is Detectable In Blood Transfusion Products, Fleur A. C. Jansen, Klaske Van Norren, Joseph L. Baumert, Annegeet Van Den Bos, Joannes F. M. Jacobs, Stef J. Koppelman

Department of Food Science and Technology: Faculty Publications

Peanut allergen Ara h 6 is known to maintain IgE‐binding capacity upon exposure to digestive enzymes1 and its presence in circulation after consumption of peanut has been demonstrated.2,3 Therefore, it has been speculated that food‐derived allergens could be transferred via blood transfusion products, causing an allergic reaction in food-allergic recipients.4,5 However, in published case reports, presence of food allergen in donated material could not be confirmed due to lack of remaining transfusion material and/or lack of sensitive analytical methods. Using a newly developed sensitive immune‐assay for detecting Ara h 6 in human serum, we now report to what extent consumed …

Evaluation Of Micro-Dwarf Tomato Cultivars For Controlled Environment Research, Noah Langenfeld, Bruce Bugbee

Dwarf Crops

Controlled environment research on tomato (Solanum lycopersicum) is often hindered by large plant size. Desired cultivar traits for research include a compact plant size, fast flowering time, and good fruit set. We grew eight micro-dwarf tomato cultivars to examine their suitability as model plants for research. The cultivar ‘Rejina Red’ had the highest harvest index and most ripe fruits among the red-fruited cultivars; ‘Jochalos’ had the highest harvest index and most ripe fruits among the yellow-fruited cultivars. ‘Microtina’ had a higher harvest index than ‘Rosy Finch’, but fruits were smaller, and growth was less determinate. ‘Monetka’ had a …

Novel Delivery Systems Of Curcumin And Resveratrol, Mohamed Salem Elfaruk

Electronic Theses and Dissertations

No abstract provided.

Development Of Probiotic Whipped Cream And Butter Using Whey Protein Hydrolysate-Encapsulated Probiotic Organisms, Kritika Gaba

Electronic Theses and Dissertations

No abstract provided.

Addition Of Apple Pomace To Feeding Substrate On Growth, Development, And Survival Rates Of Yellow Mealworms (Tenebrio Molitor) And Characterization Of Their Proteins Extracted By A Ph-Shift Process, Michelle Duvall

Graduate Theses, Dissertations, and Problem Reports (ETD)

The weight changes, survival/mortality rates, and proximate compositions of Tenebrio molitor (yellow mealworm) larvae whose diets were supplemented with apple pomace were analyzed after a 4-week feeding study to examine the nutritional quality of the insects for use as a future potential food source. Going forward, the terms “mealworm(s)”, "yellow mealworm(s)”, “T. molitor” will be used interchangeably and will always refer to the same species. The mealworm larvae were randomly divided into two groups: in addition to standard worm chow, one group was given 15 g/week of non-nutritive water-storing polymer crystals and the other was given apple pomace …

Evaluate A Mixer Of Hydrogen Peroxide And Peroxyacetic Acid To Mitigate Microbial Cross-Contamination Of Salmonella Typhimurium And The Surrogate Enterococcus Faecium During Triple-Washing Of Butternut Squash, Jesica M. Temple

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Recent foodborne illness outbreaks have been linked to fresh fruits and vegetables. For public safety, awareness of the risks of contamination from foodborne pathogens that can occur during post-harvest farming practices is essential to prevent foodborne outbreaks. Controlling the spread of foodborne pathogens on produce requires proper washing procedures, antimicrobials and doses. Given the speed and diversity of the produce being distributed, local incidents may become international emergencies. Methods: Studies were included if they assessed the efficacy of antimicrobials and various washing procedures and had to conclude the mitigation of cross-contamination of foodborne pathogens on produce grown in the …

Effects Of Cyclic Heat Stress On The Acute Inflammatory Response In Broilers, Alessandro J. Rocchi, Chrysta N. Beck, Jossie M. Santamaria, Gisela F. Erf

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Heat stress (HS) is a growing concern in broiler production. Little is known regarding the effect of HS on immune function. To examine the effects of HS on innate immunity, the local- and systemic-inflammatory responses to lipopolysaccharide (LPS) were examined in Cobb 500 male broiler chicks reared under thermoneutral (TN) or cyclic HS conditions. Beginning at four days of age, HS birds were subjected to 35 °C from 8:00 a.m. to 10:00 p.m. and TN temperatures from 10:00 p.m. to 8:00 a.m. At 37 days of age, four groups of broilers were formed: LPS-TN (8 broilers), phosphate-buffered saline (PBS)-TN (4 …

Control Of Persistent Environmental Listeria Monocytogenes Using Phenotypic And Genomic Approaches, Bhaswati Chowdhury

Electronic Theses and Dissertations

No abstract provided.

Chemical, Microbial And Safety Profiling Of A Standardized Withania Somnifera (Ashwagandha) Extract And Withaferin A, A Potent Novel Phytotherapeutic Of The Millennium, Pawan Kumar, Samudra P. Banik, Apurva Goe, Sanjoy Chakraborty, Manashi Bagchi, Debasis Bagchi

Publications and Research

Background:Withania somnifera (L.) Dunal, popularly known as Ashwagandha, is an ethnomedicinal plant with multiple pharmacotherapeutic applications. The diverse medicinal properties of the plant are largely due to the presence of withanolides, a group of C28 ergostane based steroidal lactones, with several sites of unsaturation and oxygenation. Withaferin A, a major with anolide present in Ashwagandha plant accounts for its emerging new roles to treat cancer, arthritis, inflammatory responses, immunomodulatory properties, and neuronal disorders. The root and leaf extracts are specifically important constituent materials for the development of phytotherapeutics, mostly intended for oral consumption. Several studies have been carried out …

Investigating Optimal Lipid:Protein Profiles For Infant Milk Formula, Valentina Ivanova

Theses

From the early twentieth century onward, much research has focused on improving infant milk formula (IMF). During the development of IMF, breast milk is commonly considered as the reference and IMF manufacturers are thriving to mimic the composition and/or to match the functionality of breast milk as closely as possible. A variety of bioactive ingredients, found in human breast milk, have been isolated and investigated for their potential functionality and utilised in the production of IMF. This study evaluated the current knowledge on compositional differences between human breast milk and IMF, and recent advances and developments in IMF production. Following …

Development Of Antioxidant From Spent Coffee Ground And Its Appication, Chitinsee Paidech

Chulalongkorn University Theses and Dissertations (Chula ETD)

Spent coffee grounds (SCG) are a by-product from coffee brewing process. SCG contains a considerable amount of organic compounds and is a great source of antioxidants. This research aimed to evaluate the antioxidant activities of SCG and SCG extracts by comparing different solvent (hexane and 60 - 90% ethanol) extractions, together with determining the effect of different concentration (5, 10, 15, 20 and 25%) of SCG extracts (SCG) and comparing these extracts with commercial antioxidants (BHA (A), BHT (T), tocopherol (TO)) for application to vegetable oil. The results showed that the total phenolic content (TPC) of SCG was 16.49 mg …

อิทธิพลของความเค็มต่อไมโครไบโอต้าและการแสดงออกของยีนที่เกี่ยวข้องกับกรดไขมันไม่อิ่มตัวเชิงซ้อนของโคพีพอด Apocyclops Royi, ณัฐกนกพร ประยูรมณีรัตน์

Chulalongkorn University Theses and Dissertations (Chula ETD)

โคพีพอด Apocyclops royi เป็นแพลงก์ตอนสัตว์ในกลุ่มครัสเตเชียนที่มีบทบาทสำคัญต่อการอนุบาลสัตว์น้ำวัยอ่อนเนื่องจากมีคุณค่าทางโภชนาการที่โดดเด่นและสามารถสังเคราะห์กรดไขมันสายยาวไม่อิ่มตัวเชิงซ้อน (LC-PUFA) ในงานวิจัยนี้ได้ศึกษาหน้าที่และการแสดงออกของยีน Fatty acid-binding protein (FABP) ซึ่งเป็นโปรตีนที่มีหน้าที่สำคัญในการขนส่งกรดไขมัน ผลจากการศึกษาลักษณะสมบัติของยีน ArFABP ของโคพีพอดสายพันธุ์ไทย A. royi-TH พบว่าประกอบด้วยบริเวณ open reading frame จำนวน 465 คู่เบส ซึ่งสามารถแปลรหัสเป็นโปรตีนขนาด 154 กรดอะมิโน โดยโปรตีน ArFABP ประกอบด้วยบริเวณ Lipocalin_7 domain ซึ่งมีความเหมือนกับโปรตีน FABP ในโคพีพอด Caligus rogercresseyi 55% จากการศึกษาหน้าที่ของยีน ArFABP ต่อความเกี่ยวข้องในการสังเคราะห์กรดไขมัน PUFA ในโคพีพอด ได้ทำการตรวจสอบการแสดงออกของยีน ArFABP ในตัวอย่างโคพีพอด A. royi-TH กลุ่มที่เลี้ยงด้วย Tetraselmis sp. (TET) เปรียบเทียบกับ Thalassiosira sp. (THA) พบว่าโคพีพอดกลุ่มที่เลี้ยงด้วย THA มีระดับการแสดงออกของยีน ArFABP สูงกว่าโคพีพอดกลุ่มที่เลี้ยงด้วย TET อย่างมีนัยสำคัญทางสถิติ ซึ่งสอดคล้องกับผลการวิเคราะห์องค์ประกอบของกรดไขมัน พบว่าโคพีพอดกลุ่มที่เลี้ยงด้วย THA มีสัดส่วนของกรดไขมัน LC-PUFA และกรดไขมัน arachidonic acid (ARA) สูงกว่ากลุ่มที่เลี้ยงด้วย TET อย่างมีนัยสำคัญทางสถิติ นอกจากนี้ผลจากงานวิจัยยังพบว่าระดับการแสดงออกของยีน ArFABP มีการแสดงออกสูงในโคพีพอดที่เลี้ยงในสภาวะความเค็ม 15 พีพีที (ความเค็มต่ำ) เปรียบเทียบกับกลุ่มโคพีพอดที่เลี้ยงในสภาวะความเค็ม 25 พีพีที (กลุ่มควบคุม) โดยพบว่าโคพีพอดกลุ่มความเค็ม 15 พีพีที มีสัดส่วนของกรดไขมัน ARA สูงกว่ากลุ่มความเค็ม 25 พีพีที อย่างมีนัยสำคัญทางสถิติ โดยจากผลการศึกษานี้แสดงให้เห็นว่ายีน ArFABP อาจมีบทบาทเกี่ยวข้องกับการขนส่งกรดไขมันในการสังเคราะห์กรดไขมัน LC-PUFA ในโคพีพอด และจากการศึกษาไมโครไบโอมพบว่าการเพาะเลี้ยงโคพีพอด A. …

การศึกษาลักษณะสมบัติและการแสดงออกของยีนที่เกี่ยวข้องกับการสร้างไขมันในโคพีพอด Apocyclops Royi, ณัฐวรรณ เทพสุนทร

Chulalongkorn University Theses and Dissertations (Chula ETD)

อาหารที่มีคุณค่าทางโภชนาการสูงเป็นสิ่งสำคัญสำหรับการอนุบาลลูกสัตว์น้ำแรกเกิด ซึ่งจะส่งผลทำให้สิ่งมีชีวิตเติบโตได้อย่างมีประสิทธิภาพและช่วยเพิ่มอัตราการรอดของสัตว์น้ำวัยอ่อน โคพีพอด Apocyclops royi จัดอยู่ในกลุ่มของครัสเตเชียนขนาดเล็ก เป็นอาหารของสัตว์น้ำ ที่อุดมไปด้วยคุณค่าทางโภชนาการที่ดี เนื่องจากสามารถสังเคราะห์กรดไขมันไม่อิ่มตัวเชิงซ้อนสายยาว (LC-PUFA) ได้สูง โดยงานวิจัยมีวัตถุประสงค์เพื่อศึกษาลักษณะสมบัติและบทบาทของยีน Sterol regulatory element-binding protein 1 (ArSREBP-1), ยีน Carbohydrate-responsive element-binding protein (ArChREBP) และยีน Max-like factor X (ArMLX) ในโคพีพอด Apocyclops royi สายพันธุ์ไทย (A. royi-TH) และศึกษาอิทธิพลขององค์ประกอบไขมันในอาหารต่างชนิดกันที่ส่งผลต่อปริมาณกรดไขมันในโคพีพอด A.royi-TH จากการศึกษาพบว่ายีน ArSREBP-1 มีความเหมือนกับยีน SREBP-1 ของ Tigriopus kingsejongensis เท่ากับ 64%, ยีน ArChREBP มีความเหมือนกับยีน ChREBP ของParacyclopina nana เท่ากับ 58% และ ยีน ArMLX มีความเหมือนกับยีน MLX ของ Paracyclopina nana เท่ากับ 62% จากผลการศึกษาการแสดงออกของยีน Delta 6 desaturase (ArD6D), ยีน ArSREBP-1, ยีน ArChREBP และ ยีน ArMLX ต่อความสำคัญในการสังเคราะห์กรดไขมันในโคพีพอด A. royi-TH โดยเลี้ยงโคพีพอดด้วยอาหารที่แตกต่างกัน 2 ชนิด คือ สาหร่าย Tetraselmis sp. (TET) และ Chlorella sp. (CH) พบว่าระดับการแสดงออกของยีน ArD6D, ยีน ArSREBP-1, ยีน ArChREBP และ ยีน ArMLX เพิ่มขึ้นอย่างมีนัยสำคัญทางสถิติ …

Effects Of Soluble Dietary Fibers On Encapsulation Of Betacyanin Extract From Red Dragon Fruit Peel (Hylocereus Polyrhizus) As Functional Natural Food Colorant, Rahmat Widianto

Chulalongkorn University Theses and Dissertations (Chula ETD)

Betacyanins are bioactive pigments found in red dragon fruit peels with potential health benefits, but low stability and bioaccessibility. This study aimed to investigate the impact of using dietary fibers inulin (IN) and pectin (PE) combined with maltodextrin (MD) as wall materials for betacyanin encapsulation on its physicochemical properties, storage stability, and in vitro release behavior. Various concentrations were tested: 30% MD + 10% IN, 20% MD + 20% IN, 10% MD + 30% IN, 39% MD+ 1% PE, 38% MD + 2% PE, 37% MD + 3% PE, and 40% MD (control). Results showed encapsulation improved physicochemical properties, storage …

Extraction Of Bioactive Compounds From Tamarind Seed Using Ultrasound And Its Encapsulation By Spray Drying Technique, Shivansh Honarao

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this study was to optimize the ultrasound-assisted extraction (UAE) conditions for tamarind seed extract (TSE) using response surface methodology (RSM). Subsequently, microcapsules were produced via spray drying using various wall materials and ratios. The extraction conditions were temperature levels (30, 40, and 50 °C), exposure periods (5, 10, and 15 minutes), and ethanol concentrations (30, 40, and 50 % v/v). The optimization criteria focused on maximizing the total phenolic compound, total flavonoid content, and antioxidant activity, assessed using DPPH free radical scavenging and FRAP assays. The optimal UAE conditions identified were 45 °C temperature, 15 minutes extraction …

Aroma Components And Antioxidative Activity Of Thua Nao From Black Soybean With Bacillus Subtilis, Pakavit Mathatheeranan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Thua nao is a fermented soybean product that is widely consumed, especially in the northern part of Thailand. Thua nao can be used as a condiment to enhance the aroma and flavor of foods. In this study, stir bar sorptive extraction (SBSE) coupled with gas chromatography‒mass spectrometry/olfactometry (GC‒MS/O) was used to analyze volatile aroma compounds in thua nao products. Thua nao fermented with commercial Bacillus subtilis under controlled conditions exhibited the presence of compounds such as 2-methyl butanoic acid, phenylethyl alcohol, benzaldehyde, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, and 2-methoxy phenol. These compounds contributed to an increase in fermented/sour, floral, almond-like, nutty, and wood …