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Schwerin, Dallas E.,Cavalline, Tara L.,Weggel, David C. Korea Institute of Construction Engineering and Ma 2013 Journal of construction engineering and project ma Vol.3 No.1
Use of recycled aggregates in portland cement concrete (PCC) construction can offer benefits associated with both economy and sustainability. Testing performed to date indicates that recycled brick masonry aggregate (RBMA) can be used as a 100% replacement for conventional coarse aggregate in concrete that exhibits acceptable mechanical properties for use in structural and pavement elements, including satisfactory performance in some durability tests. Recycled brick masonry aggregate concrete (RBMAC) is currently not used in any type of construction in the United States. However, use of RBMAC could become a viable construction strategy as sustainable building practices become the norm. This paper explores the feasibility of use of RBMAC in several types of sustainable construction initiatives, based upon the findings of previous work with RBMAC that incorporates RBMA produced from construction and demolition waste from a case study site. A summary of material properties of RBMAC that will be useful to construction professionals are presented, along with a discussion of advantages and impediments to use. Several quality assurance and quality control techniques that could be incorporated into specifications are identified.
Understanding the effects of dietary components on the gut microbiome and human health
Bryna Rackerby,김현정,David C. Dallas,박시홍 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.11
The gut microbiome is the complex microbialecosystem found in the gastrointestinal tract of humans andanimals. It plays a vital role in host development, physiologyand metabolism, and has been implicated as a factorin brain function, behavior, mental health, and many diseasestates. While many factors, including host geneticsand environmental factors, contribute to the composition ofthe gut microbiome, diet plays a large role. Microorganismsdiffer in their nutrient requirements, and alterations inhost dietary composition can have strong impacts on themicrobial inhabitants of the gastrointestinal tract. Thehealth implications of these dietary and microbial changesare relevant as various global populations consume dietscomprised of different macronutrient ratios, and many dietspromote alterations to recommended macronutrient ratiosto promote health. This review will outline the ways inwhich specific macro- and micronutrients impact the gutmicrobiome and host health.
Potential Prebiotic Properties of Whey Protein and Glycomacropeptide in Gut Microbiome
Bryna Rackerby,Hoang Ngoc M. Le,Avery Haymowicz,David C. Dallas,박시홍 한국축산식품학회 2024 한국축산식품학회지 Vol.44 No.2
Proteins in whey have prebiotic and antimicrobial properties. Whey protein comprises numerous bioactive proteins and peptides, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheese making. GMP has traditionally been used as a protein source for individuals with phenylketonuria and also has prebiotic (supporting the growth of Bifidobacterium and lactic acid bacteria) and antimicrobial activities. GMP supplementation may help positively modulate the gut microbiome, help treat dysbiosis-related gastrointestinal disorders and improve overall health in consumers.