Read by QxMD icon Read

Whey supplement

Michał Wilk, Małgorzata Michalczyk, Artur Gołaś, Michał Krzysztofik, Adam Maszczyk, Adam Zając
The aim of this study was to determine the effect of carbohydrate-protein supplementation with whey protein (CHO-PROw) after resistance training, and casein protein (PROc) before bedtime on the concentration of growth hormone (GH), insulin (I) and insulin-like growth factor (IGF-1), as well as serum creatine kinase (CK) activity. Twelve strength trained male subjects (age: 25.8 ± 4.7 years; training experience 6.1 ± 0.79 years; body mass 75.9 ± 2.7 kg; body height 171.8 ± 13.3 cm) were recruited for the study...
December 2018: Biology of Sport
I T Smykov, A I Gnezdilova, YuV Vinogradova, A V Muzykantova, A K Lyamina
The aim of this work was to develop a methodology to calculate the cooling curve for the sweetened condensed milk with added whey powder production and to assess the cooling regime effect on the distribution of lactose crystals' size and their microstructure. It is proposed to use a two-stage cooling curve. At the first stage, the cooling is carried out at a high speed, and at the second with a speed that varies depending on the rate of lactose crystallization. Electron microscopic studies have confirmed the cooling regime effect on the crystals' microstructure...
February 14, 2019: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
Maryia Mishyna, Jean-Jacques Itzhak Martinez, Jianshe Chen, Ofir Benjamin
In our research soluble proteins from edible grasshopper (S. gregaria) and honey bee brood (A. mellifera) were exposed to defatting, alkaline, and sonication-assisted extractions. New nitrogen-to-protein conversion factors based on amino acid analysis were estimated for both insects: 4.5 for adult grasshopper, and 4.9 and 5.6 for pupae and larvae of honey bee respectively, in contrary to 6.25 commonly used for insects. All fractions were characterized by their composition, yield, color, protein solubility, and functional properties in comparison to whey protein concentrate...
February 2019: Food Research International
Joanna Chwialkowska, Anna Duber, Roman Zagrodnik, Filip Walkiewicz, Mateusz Łężyk, Piotr Oleskowicz-Popiel
The objective of this study was to investigate the potential of supplementing ethanol and lactic acid as electron donors in reverse β-oxidation for short chain carboxylic acids chain elongation during anaerobic fermentation of acid whey. Best results were achieved when lactic acid was added at concentration of 300 mM. It resulted in medium chain carboxylic acids (MCCAs) concentration of 5.0 g/L. In the trials with ethanol addition, the overall yield was 20% lower. Subsequently liquid-liquid extraction with ionic liquids (ILs) was investigated as a potential purification method of caproic acid...
January 23, 2019: Bioresource Technology
Mona A Hassan, Aziza A El-Nekeety, Sekena H Abdel-Aziem, Nabila S Hassan, Mosaad A Abdel-Wahhab
This study aimed to evaluate the hepatoprotective effect of whey protein nanoparticles (WP-NPs) coated Zinc citrate (Zn) against oxidative stress complications and disturbances in gene expression in rats treated with CCl4 . WP-NPs were used to coat Zn at three levels and amino acids content was determined in WP-NPs and the fabrications. Seven groups of male albino rats included the control group, CCl4 -treated group (0.5 ml/100 g b.w) and the groups treated with CCl4 plus WP-NPs, Zn and the three Zn-WP-NPs fabrications...
January 31, 2019: Food and Chemical Toxicology
Fernando Naclerio, Eneko Larumbe-Zabala, Mar Larrosa, Aitor Centeno, Jonathan Esteve-Lanao, Diego Moreno-Pérez
The impact of animal blend protein supplements in endurance athletes is scarcely researched. We investigated the effect of ingesting an admixture providing orange juice and protein from beef and whey versus carbohydrate alone on body composition and performance over a 10-week training period in male endurance athletes. Participants were randomly assigned to a protein (CHO+PRO, n=15) or a non-protein isoenergetic carbohydrate (CHO, n=15) group. Twenty grams of supplement mixed with orange juice was ingested post-workout or before breakfast on non-training days...
January 24, 2019: International Journal of Sport Nutrition and Exercise Metabolism
Hosahalli S Ramaswamy, Anuradha Gundurao
The effects of high pressure treatment on the rheological properties of protein enriched mango puree were evaluated. In the first part, the original soluble solids in mango puree (28° Brix) was lowered to 26, 23 and 20° Brix, and each was supplemented with 2, 5 and 8% of whey protein to assess the influence of added protein. The samples were then evaluated by dynamic rheology. Pressure treatment resulted in a progressive increase in elastic (G') and viscous modulii (G″) as well as complex viscosity (η*)...
January 21, 2019: Foods (Basel, Switzerland)
R Caputo Oliveira, K J Sailer, H T Holdorf, C R Seely, R S Pralle, M B Hall, N M Bello, H M White
Postpartum dietary supplementation of gluconeogenic precursors may improve the plasma metabolite profile of dairy cows, reducing metabolic disorders and improving lactation performance. The objective of this trial was to examine the effects of supplementation with fermented ammoniated condensed whey (FACW) postpartum on lactation performance and on profile of plasma metabolites and hormones in transition dairy cows. Individually fed multiparous Holstein cows were blocked by calving date and randomly assigned to control (2...
January 16, 2019: Journal of Dairy Science
H C G Nabuco, C M Tomeleri, P Sugihara Junior, R R Fernandes, E F Cavalcante, D Venturini, D S Barbosa, A M Silva, L B Sardinha, E S Cyrino
BACKGROUND AND AIM: Protein supplementation and resistance training (RT) are interventions that may counteract decline in muscle mass and increase in fat mass, thus reducing the risk of developing chronic diseases during the aging process. The objective of this study was to investigate the effect of whey protein (WP) pre- or post-RT on metabolic and inflammatory profile in pre-conditioned older women. METHODS AND RESULTS: Seventy older women participated in this investigation and were randomly assigned to one of three groups: WP pre-RT and placebo post-RT (WP-PLA, n = 24), placebo pre-RT and WP post-RT (PLA-WP, n = 23) and placebo pre and post-RT (PLA-PLA, n = 23)...
November 29, 2018: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
Mads S Larsen, Dagmar Clausen, Astrid Ank Jørgensen, Ulla R Mikkelsen, Mette Hansen
Recent studies demonstrate that protein ingestion immediately before sleep improves muscle recovery during the night following resistance exercise. Whether this feeding strategy benefits recovery from endurance training has yet to be established. The aim of this study was to investigate the effects of whey protein isolate ingested every night before sleep on subsequent performance and circulatory markers of muscular recovery during a week of intensified endurance training mimicking a training camp. In a parallel design, thirty-two trained runners underwent a one-week intervention with a rigorously controlled diet (g kg-1 d-1 : 7...
January 11, 2019: International Journal of Sport Nutrition and Exercise Metabolism
Amy Banaszek, Jeremy R Townsend, David Bender, William C Vantrease, Autumn C Marshall, Kent D Johnson
This study examined the effects of whey and pea protein supplementation on physiological adaptations following 8-weeks of high-intensity functional training (HIFT). Fifteen HIFT men (n = 8; 38.6 ± 12.7 y, 1.8 ± 0.1 m, 87.7 ± 15.8 kg) and women (n = 7; 38.9 ± 10.9 y, 1.7 ± 0.10 m, 73.3 ± 10.5 kg) participated in this study. Participants completed an 8-week HIFT program consisting of 4 training sessions per week. Participants consumed 24 g of either whey (n = 8) or pea (n = 7) protein before and after exercise on training days, and in-between meals on non-training days...
January 4, 2019: Sports
Ian T Zajac, Danielle Herreen, Kathryn Bastiaans, Varinderpal S Dhillon, Michael Fenech
Whey protein isolate (WPI) is high in vitamin B12 and folate. These and other related markers (holotranscobalamin, methylmalonic acid and homocysteine) have been linked with cognitive health. This study explored the efficacy of WPI for improving cognitive function via delivery of vitamin B12 . Moderately vitamin B12 -deficient participants aged between 45 and 75 years ( n = 56) were recruited into this randomised controlled crossover trial. Participants (55% female) consumed 50 g whey (WPI; active) or soy protein isolate (SPI; control) for eight weeks...
December 21, 2018: Nutrients
Dean M Allerton, Penny L S Rumbold, Daniel J West, Emma J Stevenson
No abstract text is available yet for this article.
December 21, 2018: British Journal of Nutrition
H Hamarsland, S N Aas, A L Nordengen, K Holte, I Garthe, G Paulsen, M Cotter, E Børsheim, H B Benestad, T Raastad
OBJECTIVE: Elderly muscle seems less sensitive to the anabolic stimulus of a meal. Changes in blood concentrations of leucine are suggested as one important trigger of the anabolic response in muscle. The aim of this study was to investigate whether native whey protein, containing high amounts of leucine, may be a more potent stimulator of muscle protein synthesis (MPS) in elderly than regular whey protein (WPC-80) or milk. DESIGN: Randomized controlled partial crossover...
2019: Journal of Nutrition, Health & Aging
Kaitlin D McGinnis, Jeremy S McAdam, Christopher M Lockwood, Kaelin C Young, Michael D Roberts, JoEllen M Sefton
This project investigated whey protein and/or carbohydrate supplementation effects on musculoskeletal injury (MSI) outcomes. Four groups of Initial Entry Training soldiers consumed either: (1) one protein (38.6 g, 293 kcal); (2) one carbohydrate (63.4 g, 291 kcal); (3) two protein (77.2 g, 586 kcal); or (4) two carbohydrate servings/day (126.8 g, 582 kcal) after physical training and before bed, or before bed only. Odds Ratio, Chi-square and Wilcoxon ranked-sum test compared supplementation/no supplementation, number of servings, and protein/carbohydrate for MSI and limited/missed duty rates and limited/missed training days...
December 6, 2018: Nutrients
Jaya Mishra, Adam Bohr, Thomas Rades, Holger Grohganz, Korbinian Löbmann
Whey proteins are extensively used as nutritional supplements but have so far not been investigated as co-formers for amorphous solid dispersions (ASD) to enhance the solubility and dissolution rate of poorly water soluble drugs. In this study, whey protein isolate (WPI) and whey protein hydrolysate (WPH) were each mixed with three poorly water soluble drugs (indomethacin: IND, carvedilol: CAR and furosemide: FUR) and prepared as ASDs at 50% (w/w) drug loading using vibrational ball milling. Subsequently, solid state characteristics, dissolution rate and physical stability of the obtained samples were analyzed...
December 4, 2018: European Journal of Pharmaceutical Sciences
Sabrina S Sabo, Attilio Converti, Simone Ichiwaki, Ricardo P S Oliveira
Whey, the main by-product of the dairy industry, is frequently disposed of in the environment without any treatment due to the high cost of this process. Alternatively, whey can be used as a medium to culture lactic acid bacteria and produce value-added products such as bacteriocins. In this work, we attempted to improve bacteriocin production by Lactobacillus plantarum ST16Pa in a whey powder formulation supplemented with additional sources of carbon, nitrogen, and vitamin B12 at different levels and varying the agitation intensity according to a Plackett-Burman experimental design...
October 24, 2018: Journal of Dairy Science
Nancy K Ramadan, Gamal Badr, Hanem S Abdel-Tawab, Samia F Ahmed, Mohamed H Mahmoud
Objectives: Heat stress (HS) is a catastrophic stressor that dampens immunity. The current study investigates the effect of dietary administration with camel whey protein (CWP) on apoptotic pathway caused by HS. Materials and Methods: Forty-five male mice were divided into three groups: a control group; HS group; and HS mice that were orally supplemented with CWP (CWP-HS group). Results: We found that reactive oxygen species (ROS), pro-inflammatory cytokines (IL-6), and C reactive protein (CRP) were elevated in the HS group along with a significant increase of caspase-9 and -3 and decrease of total antioxidant capacity (TAC)...
September 2018: Iranian Journal of Basic Medical Sciences
Alime Cengiz, Talip Kahyaoglu, Karin Schröen, Claire Berton-Carabin
BACKGROUND: Interest in supplementing food with iron to counteract dietary deficiencies has been on the rise in recent years. A major challenge is the pro-oxidant activity of soluble iron, which compromises the chemical stability of the enriched food products. This problem could be mitigated by encapsulating iron, to physically keep it separated from oxidisable substrates, such as unsaturated fatty acids. In the present work, the physical and chemical stability of surfactant- or protein-stabilized oil-in-water emulsions fortified with iron was investigated...
November 24, 2018: Journal of the Science of Food and Agriculture
Paul A Roberson, Matthew A Romero, Petey W Mumford, Shelby C Osburn, Cody T Haun, Christopher G Vann, Heidi A Kluess, Michael D Roberts
Introduction: Protein supplementation is proposed to promote recovery and adaptation following endurance exercise. While prior literature demonstrates improved performance when supplementing protein during or following endurance exercise, chronic supplementation research is limited. Methods: Runners (VO2 peak = 53.6 ± 8.9 ml/kg/min) were counter-balanced into a placebo group (PLA; n = 8) or protein group (PRO; n = 9) based on sex and VO2 peak, and underwent 10 weeks of progressive endurance training. Prior to training, body composition, blood cell differentials, non-invasive mitochondrial capacity using near-infrared spectroscopy, and a 5 km treadmill time trial (TT) were evaluated...
2018: Frontiers in Nutrition
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"