Digital Commons Network^™

Research Progress In The Shellfish-Derived Antioxidant Peptides, Yang Xihong, Qu Chunchun, Li Sai, Li Anqi, Ding Qian, Li Yujin, Li Lidi, Zhang Junyi, Xie Wancui

Food and Machinery

Chinese coastal shellfish resources are abundant with a good prospect of fresh or processed shellfish products. Bioactive peptides from shellfish and its by-products can promote the upgrading of aquaculture development, which belongs to high value utilization of aquatic resources. Antioxidant peptides can suppress and delay lipid oxidation, protect human tissues and organs from damage by the free radicals, therefore this attracted researches in recent years increasingly. The article reviewed methods of preparation of antioxidant peptides from shellfish, including proteolysis, separation, purification and identification. Based on the detection and structural identification methods of antioxidant peptides, the significance and the further clarify …

Research Progress In Regulation Of Energy Metabolism By Dietary Nutrition And Host Inheritance Via Intestinal Flora, Tang Tian, Suo Huayi, Li Jian, Zhang Yu, Wang Hongwei, Zhao Xin

Food and Machinery

The paper will explain the effects of dietary nutrition and host genetics on energy metabolism, aim to provide reference for the research and development of functional foods for metabolic diseases and the exploration of new therapeutic methods for metabolic diseases.

Effect Of Wheat Flour Characteristics On The Quality Of Buckwheat Chinese Steamed Bread Premix, Zheng Yujiao, Guo Xiaona, Zhu Kexue

Food and Machinery

The basic properties, dough rheological properties and fermentation characteristics of 8 different wheat flours were determined, and the buckwheat Chinese steamed bread（CSB）was prepared by using the buckwheat CSB premix prepared by the method. The specific volume, texture characteristics and sensory quality of the buckwheat CSB were determined. To explore the effect of wheat flour characteristics on the quality of buckwheat CSB premix. The results showed that wheat flour of the content of wet gluten was between 33% and 34%, the protein content was between 11% and 12% had less protein weakening, the dough formation time and stability time were longer, …

Detection Of Hydroxyapatite In Milk Powder, Zhu Lixian, Lin Qinbao, Zhong Huaining, Wang Liang, Pan Jingjing

Food and Machinery

The milk powder was dissolved in ultrapure water, and the inorganics-rich components in the milk powder were extracted after ultrasonication, centrifugation and vacuum freeze-drying, and the inorganics-rich components in the milk powder were qualitatively analyzed by X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy. In addition, different concentrations of needle-like nano-hydroxyapatite reference standard were added to the blank milk powder sample, and the same prelimina-ry treatment and analysis as the milk powder samples was carried out. The morphology and nano-size of the inorganics-rich components in sample 1 and spiked sample were characterized by scanning electron microscopy (SEM) and transmission …

Change In The Quality Of Coix Seed During Storage, Luan Linlin, Lu Hongmei, Chen Li, Yang Fengyi, Wu Yuzhang, Mou Cancan

Food and Machinery

The aim of the study was to explore quality of coix seed grown in Xingren, Guizhou (China) during storage. The results indicated that, color, ordor, main contents and correlate indexs of coix seed changed significantly during storage, which reflect the quality of coix seed decreases. Results: the color of coix seed changed with storing time lengthening. Original milky white, glossy coix seed became dimmed with yellowish and grayish with storing period lengthens. The odor was also from the original sweet aroma, which was ultimate rancidity. The rancidity of coix seed bacame stronger with storing time lengthening. During storage period, there …

Efficacy Of Aqueous And Gaseous Chlorine Dioxide In Reducing Salmonella, E. Coli O157:H7, And Listeria Monocytogenes On Sweet Potatoes, Strawberries, And Blueberries, Phillip Luu

LSU Master's Theses

Chlorine dioxide, a stronger oxidizing agent, is effective against a broad spectrum of microorganisms. This study evaluated the efficacy of chlorine dioxide on reducing Salmonella, E. coli O157:H7, and Listeria monocytogenes on sweet potato (aqueous ClO₂), strawberries and blueberries (gaseous ClO₂). Sweet potatoes inoculated with multi-strain cocktails of each bacterial pathogen (10⁷ CFU/cm²) were treated with 5 ppm aqueous ClO₂ or water for 10, 20, and 30 minutes. Strawberries and blueberries spot inoculated with multi-strain cocktails of each bacterial pathogen (10⁷ CFU/g) were treated with gaseous ClO₂ sachets (63 mg/l for strawberry and 30 mg/l for blueberry) …

Development Of A Breadfruit Flour Pasta Product, Carmen L. Nochera, Diane Ragone

Peer Reviewed Articles

Breadfruit (Artocarpus altilis) is grown throughout the tropics. Processing the perishable starchy fruit into flour provides a means to expand the use of the fruit. The flour can be used to develop new value-added products for local use and potential export. The purpose of this investigation was to develop a pasta product using breadfruit flour, test the sensory qualities of the breadfruit pasta product by sensory evaluation, and evaluate the nutritional composition. ‘Ma’afala’, a popular and widely distributed Polynesian cultivar was used for the study. Nutritional labeling shows that the breadfruit pasta product is high in carbohydrates (73.3%/100 …

Effect Of Fermentation On Enhancing The Nutraceutical Properties Of Arthrospira Platensis (Spirulina), Elena Demarcocastro, Emer Shannon, Nissreen Abu-Ghannam

Articles

Abstract:Arthrospira platensis(spirulina), a filamentous fresh-water planktonic cyanobacterium,possesses diverse biological activities and a unique nutritional profile, due to its high contentof valuable nutrients. This study aimed to further improve the bioactive profile of spirulina, byfermenting it with the lactic acid bacteriumLactobacillus plantarum.In vitrocomparison of thetotal phenolic content (TPC), C-phycocyanin, free methionine, DPPH radical scavenging capacity,ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC) and proteinfragmentation via SDS-PAGE in untreated versus 12 to 72 h fermented spirulina is reported here.After 36 h fermentation, TPC was enhanced by 112%, FRAP by 85% and ORAC by 36%. After 24 h,the DPPH radical scavenging …

Ice Cream Substitute For Patients With End Stage Renal Disease, Abby Iocca

Theses and Dissertations

Background: Quality of life for patients with end stage renal disease is less than similar-aged, general population counterparts. A large part of the decrease in quality of life is change of diet and nutritional restrictions, oral nutrition supplements are a way to combat this decrease in quality of life.

Methods: An ice cream substitute product was developed for patients with end stage renal disease and that are on dialysis. The product consisted of rice milk, egg whites, evaporated coconut milk, sugar, and vanilla bean paste. There were two flavors: cinnamon and lemon. These flavors were both tested subjectively and objectively. …

Corrigendum: Use Of Uv Treated Milk Powder To Increase Vaccine Efficacy In The Elderly, Sara Schaefer, Kasper Arthur Hettinga, James Cullor, J. Bruce German, Bethany M. Henrick

Department of Food Science and Technology: Faculty Publications

“Peripheral blood samples were collected at the time of enrollment (week 0) and serum was stored at −80◦C until subsequent analysis. Participants were then randomized into two groups and provided with equal concentration and quantity of either dairy or soy supplement provided in powdered form in coded, single-serving bags. Both participants and researchers were blinded to the type of protein received. Participants were asked to consume two servings of protein powder (6 grams/packet) with 4 ounces of water or applesauce twice per day, with meals, for a total of 8 weeks. At week 4, participants were vaccinated with DTaP vaccine …

Blueberry Pectin-Anthocyanin Binding Kinetics And Stability Under In Vitro Digestion, Jee Won Koh

LSU Doctoral Dissertations

Blueberry pectins were sequentially extracted from highbush blueberry powder and precipitated in alcohol to obtain water soluble fraction (WSF) and chelator soluble fraction (CSF). WSF was high methoxyl pectin (degree of esterification: 53), rich in in neutral sugars (40 mol%), and had less negative charge (-21 mV) whereas CSF was low methoxyl pectin (degree of esterification: 21), rich in uronic acids (92 mol%), and had lower negative charge ( -26 mV).

The stability of blueberry pectin-anthocyanin complex was investigated under simulated in vitro digestion. Binding of blueberry pectins with three anthocyanin standards (malvidin-3-glucoside; M3G, cyanidin-3-glucoside; C3G, and delphinidin-3-glucoside; D3G) and …

Sensory Analysis For Determining The Influence Of Visual Stimuli Upon Eating Experiences, Pitchayapat Chonpracha

LSU Doctoral Dissertations

Consumers are currently more conscious about salt and sugar intake than they were in the past. Visual cues have been shown to impact consumers’ cognitive and their taste perceptions. Current research information about visual cues enhancing human’s tastes expectation of saltiness and sweetness is limited. The sophisticated sensory analysis for products containing a reduced amount of salt and sugar is undoubtedly time–consuming and costly if the sensory experiment is designed with many samples. Therefore, the following three studies were achieved: I) an examination of how intrinsic and extrinsic visual cues affect the overall consumer eating experiences; II) a comparison of …

Effect Of Environmental Factors And Residual Sanitizers On Survival And Attachment Of Indicator Organism And Human Pathogens On Fresh Produce, Vijay Singh Chhetri

LSU Doctoral Dissertations

A comprehensive understanding of the behavior of microbial contaminants on produce surfaces in agricultural farms and during post-harvest activities is essential for the development of produce safety risk management strategies. Our studies investigated the survival and the attachment of E. coli on watermelon surfaces in agricultural settings with different levels of vegetation, and the effect of residual sanitizers on the survival and the attachment of E. coli O157: H7 and L. monocytogenes on spinach leaves. The attachment strength (S_R) of the E. coli cells on watermelon surfaces significantly increased (P<0.05) from 0.04 to 0.99 in the first 24 h, which was primarily due to the decrease in loosely attached population, given that the population of strongly attached cells was constant. The daily die-off rate of E. coli ranged from -0.12 …

Program Coordinators’ Experiences With Introducing Parent-Focused Health Lessons To A Child-Centered Micronutrient Supplementation Program: An Exploration Of Recent Programmatic Changes In Liahona Children’S Foundation, Shannon Barham

Undergraduate Honors Theses

This paper utilizes survey responses from local coordinators of LCF, an international micronutrient supplementation humanitarian organization, to provide insight into the challenges and personal rewards of providing nutrition education to parents of malnourished children. LCF is based in Utah and operates in 19 countries throughout the world. LCF recently introduced a series of health lessons geared toward parents of malnourished children. A survey was sent to LCF workers in 12 countries in order to gather feedback about the health lessons. Qualitative survey responses are explored, and potential suggestions for future changes to the health lessons are proposed. Additionally, data gathered …

Shirli Self, Shirli Self, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Shirli Self is an Idaho native who has worked in school nutrition both in Idaho and Oregon, in a unique position. The area where she currently works in Oregon is so rural and remote that Oregon pays for her students to finish high school in Idaho after they complete eighth grade in Oregon, because the nearest Idaho high school is much closer than the nearest Oregon high school. She has twenty-one years of school nutrition experience and is a one-woman show, having no employees and being responsible for feeding ninety-three K – 8 students every day.

Reparation Ecologies: Regimes Of Repair In Populist Agroecology, Kirsten Valentine Cadieux, Stephen Carpenter, Alex Liebman, Renata Blumberg, Bhaskar Upadhyay

Department of Nutrition and Food Studies Scholarship and Creative Works

Amidst the backdrop of attention to populism in general, it is instructive to understand populism through social movements focused on food and agriculture. Agrarian populism is particularly salient in agrifood movements. Agroecology has been widely identified as a domain of populist claims on environmental and social governance surrounding agricultural–ecological and political–economic systems. As authoritarian populist leaders gain power throughout the world at a time of expanding economic globalization and contingent socioecological crises, contests over populism in agrifood regimes can highlight current dynamics relevant for formative evaluation of alternative political agroecology strategies and of populist environmental governance more broadly. Can populism …

Food – Eating With My Eyes, Nadia Arévalo

The Transdisciplinary STEAM+ Journal

Whole foods are visually stunning while being scientifically proven to be healthy. Here I share some images and notes of my colorful preparations that embrace the knowledge of the ever-expanding Nutritional Sciences.

The Effect Of Alcohol And Bitterness Levels On Brewing Yeast Viability, Nichole Elizabeth Bryant

Master's Theses

Two of the most popular beer styles within the craft brewing industry are India Pale Ales (IPA’s) and those with high alcohol by volume (ABV). Production of these styles requires high gravity fermentation and high amounts of bittering hops in order to reach the required values for ABV and International Bitterness units (IBU) respectively. The aim of this study was to determine the impact of high gravity fermentation and high IBU levels on yeast viability and repitching cycles.

An initial experiment on high gravity fermentations was done in order to assess the effects this variable had alone. Successive five day …

Ethiopia’S High Childhood Undernutrition Explained: Analysis Of The Prevalence And Key Correlates Based On Recent Nationally Representative Data, Tafere Gebreegziabher Belay, Nigatu Regassa

All Faculty Scholarship for the College of the Sciences

Objective

To examine the contribution of child, maternal and household factors in stunting, wasting and underweight among children under 5 years in Ethiopia. Design

Quantitative cross-sectional design based on nationally representative data. Setting

Urban and rural areas of Ethiopia. Participants

Younger (0–24 months; n 4199) and older age groups (25–59 months; n 5497), giving a total of 9696 children. Results

Among the younger age group, 29 % were stunted, 14 % were wasted and 19 % were underweight; and among the older age group, the prevalence of stunting, wasting and underweight was 47, 8 and 28 %, respectively. Being female, …

An Iterative Process For Training Design And Implementation Increased Health Workers' Knowledge For Taking Nutrition Behavior Change To Scale, Wendy Gonzalez, Anabelle Bonvecchio Arenas, Armando García-Guerra, Mireya Vilar-Compte, Alejandría Villa De La Vega, Laura Quezada, Cynthia Rosas, Ana Lilia Lozada-Tequeanes, Amira Hernández

Department of Public Health Scholarship and Creative Works

The shortage of skilled, motivated, and well-supported health workers is a major barrier to scaling up nutrition interventions and services. Objective: The objective of this study is to describe the process for developing and implementing a training of health personnel for the delivery of the Integrated Strategy for Attention to Nutrition (EsIAN), an evidence-based strategy for promoting infant and young child feeding through primary health care in Mexico. The specific objective is to provide a case study and highlight challenges, as well as elements to successfully mitigate these, and discuss potential applications of findings beyond the Mexican context. Methods: The …

Formation And Regulation Of 1,2-Dicarbonyl Compounds And Ages In Steamed Cakes, Lu Yongling, Lu Min, Wang Xi, Lv Lishuang

Food and Machinery

In view of the formation of harmful products of Maillard reaction in baked foods, different recipes of steamed cakes (sugar type, oil type, cake acidity regulator and the ratio between egg white and yolk) were selected to analyze the changes of glyoxal (GO), methylglyoxal (MGO) and advanced glycation end products (AGEs) in cakes, and the inhibitory effects of natural flavonoids (geneistein and luteolin) were investigated. The results showed that fructose (hexacarbohydrate) produced the highest MGO, xylose (pentose) produced the highest GO, GO and MGO contents were the lowest in cakes produced by xylitol; The influence of oil on the production …

Effects Of Pomegranate Peel Polyphenols On Cholesterol Efflux And Related Protein Expression, Zhao Shengjuan, Xiang Jinle, Chen Shuxing, Fei Peng, Xu Yunfeng, Li Jianke

Food and Machinery

In order to explore the effects of pomegranate peel polyphenols (PPPs) on SR-B1 protein expression and cholesterol efflux, in this study, Raw264.7 macrophages derived from foam cells were used as the model to illuminate the effects of PPPs on cholesterol efflux mediated by HDL. Western blot method was used to analyze the expression of scavenger receptor B1 (SR-B1), acyl-coenzyme A1: cholesterol acyltransferase (ACAT1) and cholesteryl ester hydrolase (nCEH). Further, the activity changes of ACAT1 and nCEH were revealed. The results showed that PPPs promoted the HDL-mediated cholesterol efflux and up-regulated the expression of SR-B1 significantly (P＜0.05). In addition, the PPPs …

The Ultrahigh-Pressure/Thermally Induced Technologies Of The Β-Glucan Mixed Gel And The Evaluation System For Their Properties, Fan Rui

Food and Machinery

The apparent and functional properties of the mixed gel prepared with the thermal and ultrahigh-pressure were compared by rheological, texture, scanning electron microscopy and other analytical methods. The results showed that the β-glucan typical gels formed by ultra-high pressure and thermally induced at the total concentration of 7% and 8%, respectively, and the properties in water hold capacity, gel hardness, elasticity, chewiness and internality of β-glucan mixed gel formed by ultra-high pressure showed the more superior, in which the hardness of gel formed by ultrahigh pressure was significantly stronger than gel formed by thermal-induced gel (P＜0.05), while the oil hold …

Comparison Of Fermentation Characteristics Between Clostridium Butyricum And Clostridium Tyroburicum, Wang Youling, Wei Zhujun, Liu Qing, Zhu Lilei, Xiao Haifang, Song Yuanda

Food and Machinery

In this study, three strains of Clostridium butyrate were isolated from human feces, pit mud and animal intestinal contents. Which were named as Clostridium butyricum NK, SY and RX respectively. The fermentation characteristics of C. butyricum NK, SY and RX and C. tyroburicum ATCC25755 grown in synthetic medium were compared. The results showed that the growth ability of C. butyricum NK and SY were strong. C. tyroburicum had higher butyric acid, but lower lactic acid-production than C. butyricum. Compared among the three different strains of C. butyricum, C. butyricum NK had a stronger ability to produce butyric acid, with the …

Flavor Components Of Fermented Coconut Milk Using Omics Technology Combined With Spme-Gc-Ms, Lei Wenping, Zhou Hui, Zhou Xingrong, Wu Kun, Wu Ni, Song Yanfei, Liu Chengguo

Food and Machinery

In order to analyze the correlation between characteristic flavor components and sensory flavor of fermented coconut milk. Solid-phase micro extraction (SPME) combined with gas chromatography-mass spectrometry (GC-MS) was employed to analyze the volatile flavor compounds of fermented coconut, natural coconut milk and yogurt, respectively. The sensory properties of flavor were assessed, and the characteristic flavor of the fermented coconut milk was analyzed from the sensory and flavor substances in combination with the omics technology. The results showed that the sensory flavor characteristics of fermented coconut milk were higher in sweet, sour, coconut, milky, creamy and alcoholic sensory scores; the sweetness …

Discrimination Of Big Or Small Particle Coix Seed Varieties Based On The Major Nutrient Content, Liu Xing, Fan Kai, Yang Junhua, Song Weiguo

Food and Machinery

Based on the crude fat, protein, amino acids and mineral element content of different areas big particle Coix seed (BCS) and small particle Coix seed (SCS), this paper analyzed whether there was a difference on the major nutrient content between BCS and SCS by using analysis of variance, and discriminated the BCS and SCS by using principal component analysis (PCA) and support vector machine (SVM). The results indicated that the nutrient contents measured in this text of SCS were higher than or not significant difference from those of BCS except the crude fat, Mg, and Al content. The characteristic variables …

Optimization On Enzymatic Hydrolysis Conditions Of Rice Dreg And Effect On Cadmium Content, Qi Wenlei, Feng Yanying, Xu Zhou, Chen Maolong, Cheng Yunhui

Food and Machinery

Low solubility and high cadmium content are the technical bottlenecks of protein resource utilization in rice dregs by-products. Rice dregs with high cadmium content were used as raw materials,Alcalase 2.4 L alkaline protease was selected, The factors of enzymatic hydrolysis of rice dregs were studied by response surface center combinational design. According to the results of single-factor experiment, the time of enzymatic hydrolysis, pH, the amount of enzyme added and the concentration of substrate were taken as the influencing factors, and the soluble nitrogen recovery rate of rice dregs protein was taken as the response value. The optimal conditions for …

Studies On The Antioxidant And Enzyme Inhibitory Activities Of Galangal Methanol Extract And The Correlation With The Bioactive Components, Li Jiao, Zhang Xiaofeng, Wang Xiaokai, Wang Wanyu

Food and Machinery

The Galangal was degreased and extracted by methanol to evaluate its polyphenols content and total flavonoids content, and the relationship of them with the antioxidant capacity and inhibitory activities against pancreatic lipase and α-glucosidase were studied. The polyphenols and total flavonoids were determined respectively by Folin-Ciocalteu assay and AlCl₃ colorimetric method. The antioxidant potential was estimated by DPPH method, ABTS method and FRAP method. Additionally, inhibitory effects against pancreatic lipase and α-glucosidase in vitro were also assessed. The results showed that the polyphenols and total flavonoids were 62.91 mg GAE/g DW and 13.12 mg QE/g DW, respectively. When concentration …

The Effects Of The Antioxidant Activity And Inhibition On Ldl Oxidation Of Clove Oil Extracted By Soxhelt And Steam Distillation Methods, Li Xuejin, Xiong Yifan, Zheng Changhong, Yang Liping, Chen Hui, Liu Changjin, Jiang Shenhua

Food and Machinery

The comparison of antioxidant activity and inhibition efficiency on LDL oxidation of two kinds of clove oil were studied by spectrophotometry and fluorescence analysis in this study. The results showed as follows. The scavenging ability on DPPH radicals, total reducing and antioxidant capacities, ferric reducing antioxidant power of COESD were significantly stronger than those of COESM (P＜0.05 or P＜0.01). During LDL oxidation, the inhibition effect of COESD on tryptophan (Trp) fluorescence quenching, the formation of total fluorescence products and lipofuscins, lysine (Lys) modification detected by MDA and UV-Visible scanning spectra were also better than those of COESM. The results of …

Optimization Of Coupled Pulping And Steam Blanching On Lipoxygenase Denaturation Of Soybeans, Wang Xiukun, Wu Jiaqi, Cui Zhengwei

Food and Machinery

In order to minimize the beany flavor and improve the quality of soybean milk, the pulping of soybean milk coupled with steam inactive lipoxygenase (lox) activity was investigated. The effect of three factors, including temperature, heating rate, and soaking time, impacting on the lipoxygenase (lox) activity and sensory evaluation of odor of product, were evaluated based on the results of single-factor experiment. Thenafter, the response surface methodology was applied to find optimal condition for the denaturation of the lipoxygenase (lox). The optimum conditions were as follows: being heated at 95.34 ℃, with heating rate of 0.37 ℃/s and soaking for …