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a novel resistant maltodextrin

Josephine Ho, Raylene A Reimer, Manpreet Doulla, Carol Huang
BACKGROUND: The gut microbiome is increasingly recognized as a contributor to disease states. Patients with type 1 diabetes (DM1) have distinct gut microbiota in comparison to non-diabetic individuals, and it has been linked to changes in intestinal permeability, inflammation and insulin resistance. Prebiotics are non-digestible carbohydrates that alter gut microbiota and could potentially improve glycemic control in children with DM1. This pilot study aims to determine the feasibility of a 12-week dietary intervention with prebiotics in children with DM1...
July 26, 2016: Trials
Lauren E O'Connor, Wayne W Campbell
Previous research supports that consumption of resistant starch and guar gum independently influences insulin-mediated glucose responses to meals. This research assessed a novel co-processed fiber composite (FC) ingredient comprising whole-grain high-amylose maize flour and viscous guar gum on glucose and insulin responses to co-consumed and subsequent meals in humans. It was hypothesized that a smoothie-type beverage or a cold-pressed snack bar containing the FC would blunt and sustain serum glucose and insulin postprandial responses compared with maltodextrin (MD)...
March 2016: Nutrition Research
Joanne Harrold, Leanne Breslin, Jennifer Walsh, Jason Halford, Christine Pelkman
The current study assesses the impact on appetite and food intake of a novel co-processed ingredient containing a viscous fibre and whole-grain high-amylose corn flour, a source of type 1 and type 2 resistant starch (HAM-RS). Ninety adults completed a crossover, placebo-controlled study comparing two doses of the ingredient (20 and 30 g) to a maltodextrin control in a fruit-based smoothie served with breakfast. Ad libitum food intake was measured over the day and visual analogue scales were used to assess subjective appetite sensations...
October 2014: Food & Function
David J Baer, Kim S Stote, Theresa Henderson, David R Paul, Kazuhiro Okuma, Hiroyuki Tagami, Sumiko Kanahori, Dennis T Gordon, William V Rumpler, Maria Ukhanova, Tyler Culpepper, Xiaoyu Wang, Volker Mai
Resistant maltodextrin (RM) is a novel soluble, nonviscous dietary fiber. Its metabolizable energy (ME) and net energy (NE) values derived from nutrient balance studies are unknown, as is the effect of RM on fecal microbiota. A randomized, placebo-controlled, double-blind crossover study was conducted (n = 14 men) to determine the ME and NE of RM and its influence on fecal excretion of macronutrients and microbiota. Participants were assigned to a sequence consisting of 3 treatment periods [24 d each: 0 g/d RM + 50 g/d maltodextrin and 2 amounts of dietary RM (25 g/d RM + 25 g of maltodextrin/d and 50 g/d RM + 0 g/d maltodextrin)] and were provided all the foods they were to consume to maintain their body weight...
July 2014: Journal of Nutrition
Evelyn B Parr, Donny M Camera, José L Areta, Louise M Burke, Stuart M Phillips, John A Hawley, Vernon G Coffey
INTRODUCTION: The culture in many team sports involves consumption of large amounts of alcohol after training/competition. The effect of such a practice on recovery processes underlying protein turnover in human skeletal muscle are unknown. We determined the effect of alcohol intake on rates of myofibrillar protein synthesis (MPS) following strenuous exercise with carbohydrate (CHO) or protein ingestion. METHODS: In a randomized cross-over design, 8 physically active males completed three experimental trials comprising resistance exercise (8×5 reps leg extension, 80% 1 repetition maximum) followed by continuous (30 min, 63% peak power output (PPO)) and high intensity interval (10×30 s, 110% PPO) cycling...
2014: PloS One
Sarah K Cervantes-Pahm, Yanhong Liu, Annette Evans, Hans H Stein
BACKGROUND: Consumption of different dietary fibers may influence the digestibility of carbohydrates and other nutrients. Therefore the objectives of this experiment were to determine the effect of novel fiber ingredients on the apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of gross energy (GE), dry matter (DM), crude protein (CP) and total dietary fiber (TDF) in pigs and to calculate the standardized digestibility of analyzed TDF in four novel fiber ingredients...
May 2014: Journal of the Science of Food and Agriculture
Jong-Hyun Jung, Dong-Ho Seo, James F Holden, Cheon-Seok Park
The deduced amino acid sequence from a gene of the hyperthermophilic archaeon Pyrococcus sp. ST04 (Py04_0872) contained a conserved glycoside hydrolase family 57 (GH57) motif, but showed <13% sequence identity with other known Pyrococcus GH57 enzymes, such as 4-α-glucanotransferase (EC, amylopullulanase (EC, and branching enzyme (EC This gene was cloned and expressed in Escherichia coli, and the recombinant product (Pyrococcus sp. ST04 maltose-forming α-amylase, PSMA) was a novel 70-kDa maltose-forming α-amylase...
March 2014: Applied Microbiology and Biotechnology
Aline de Conti, Volodymyr Tryndyak, Igor Koturbash, Renato Heidor, Joice Kuroiwa-Trzmielina, Thomas P Ong, Frederick A Beland, Fernando S Moreno, Igor P Pogribny
The reversibility of non-genotoxic phenotypic alterations has been explored in order to develop novel preventive and therapeutic approaches for cancer control. Previously, it has been demonstrated that histone deacetylase (HDAC) inhibitor tributyrin, a butyric acid prodrug, to have chemopreventive effects on rat hepatocarcinogenesis. The goal of this study was to determine molecular mechanisms associated with the chemopreventive activity of tributyrin. Male Wistar rats were allocated randomly to untreated control group and two experimental groups...
August 2013: Carcinogenesis
Abby S Klosterbuer, Meredith A J Hullar, Fei Li, Elizabeth Traylor, Johanna W Lampe, William Thomas, Joanne L Slavin
Fibre has been shown to exert a number of benefits on gastrointestinal (GI) health, yet its intake is low. Addition of novel fibres to food products may increase fibre intake and improve gut health. The objective of the present study was to evaluate the influence of three novel fibres on GI outcomes in healthy human subjects. A total of twenty healthy participants (ten men and ten women) with normal BMI (23 (sem 2) kg/m2) participated in the present randomised, double-blind, cross-over study with five treatment periods...
September 28, 2013: British Journal of Nutrition
M Ukhanova, T Culpepper, D Baer, D Gordon, S Kanahori, J Valentine, J Neu, Y Sun, X Wang, V Mai
Improvements in high-throughput sequencing technologies have spurred a large number of studies aimed at obtaining a better understanding of the composition and the dynamics in gut microbiota and its associations with various human diseases, especially those in the intestinal tract. Here we briefly summarize results from three different such studies from our group, all of which used 454 based high-throughput 16S rRNA sequence analysis combined with other microbiota profiling methods to determine faecal microbiota composition...
July 2012: Clinical Microbiology and Infection
Joana F P S Gomes, Sandra Rocha, Maria do Carmo Pereira, Ivone Peres, Susana Moreno, José Toca-Herrera, Manuel A N Coelho
A novel system to carry and protect epigallocatechin gallate (EGCG), an antioxidant from the green tea, is reported. The system consists of maltodextrin and gum arabic nanoparticles coated with egg-yolk l-alpha-phosphatidylcholine (Egg-PC)/stearylamine (SA) bilayers. In this study, the polysaccharide core was produced by homogenization followed by spray-drying. The lipid coating was performed by the lipid film hydration method. The polysaccharide core revealed negative zeta potential, which changed to opposite signs after lipid coating...
April 1, 2010: Colloids and Surfaces. B, Biointerfaces
A Drakoularakou, G Tzortzis, R A Rastall, G R Gibson
BACKGROUND/OBJECTIVES: Prebiotics have attracted interest for their ability to positively affect the colonic microbiota composition, thus increasing resistance to infection and diarrhoeal disease. This study assessed the effectiveness of a prebiotic galacto-oligosaccharide mixture (B-GOS) on the severity and/or incidence of travellers' diarrhoea (TD) in healthy subjects. SUBJECTS/METHODS: The study was a placebo-controlled, randomized, double blind of parallel design in 159 healthy volunteers, who travelled for minimum of 2 weeks to a country of low or high risk for TD...
February 2010: European Journal of Clinical Nutrition
Keiji Tsusaki, Hikaru Watanabe, Tomoyuki Nishimoto, Takuo Yamamoto, Michio Kubota, Hiroto Chaen, Shigeharu Fukuda
The bacterial strain PP710, isolated from soil and identified as Paenibacillus species, produced a low-digestibility alpha-glucan containing a large amylase-resistant portion. This alpha-glucan was obtained in high yields from maltodextrin (dextrose equivalent 3) by using the condensed culture supernatant of the strain as the enzyme preparation. The water-soluble dietary fiber content of the low-digestibility alpha-glucan was 80.2%, and showed resistance to a rat intestinal enzyme preparation. The alpha-glucan was found to be a novel highly branched alpha-glucan by acid hydrolysis, NMR analysis, gel permeation chromatography, methylation analysis, and enzymatic digestion...
November 2, 2009: Carbohydrate Research
Nathaniel D Fastinger, Lisa K Karr-Lilienthal, Julie K Spears, Kelly S Swanson, Krista E Zinn, Gerardo M Nava, Kazuhiro Ohkuma, Sumiko Kanahori, Dennis T Gordon, George C Fahey
OBJECTIVE: Resistant maltodextrin has been shown to increase fecal bulk by resisting digestion and being partially fermented by colonic bacteria to short-chain fatty acids (SCFA). The objective of this experiment was to determine potential prebiotic effects, gastrointestinal tolerance, and fecal characteristics of free-living humans fed a novel resistant maltodextrin or a normal maltodextrin control. METHODS: Subjects (n = 38) were enrolled in a randomized, double-blind study where they were assigned to one of three daily treatments: 15 g maltodextrin; 7...
April 2008: Journal of the American College of Nutrition
H Meissner, W Liebl
A novel enzyme acting on starch and malto-oligosaccharides was identified and characterised. The non-hydrolytic enzyme, designated maltosyltransferase (MTase), of the hyperthermophilic bacterium Thermotoga maritima MSB8 disproportionates malto-oligosaccharides via glycosyl transfer reactions. The enzyme has a unique transfer specificity strictly confined to the transfer of maltosyl units. Incubation of MTase with starch or its constituents. i.e. amylose and amylopectin, led to the formation of a set of multiples of maltose (i...
December 15, 1998: European Journal of Biochemistry
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