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You searched for: Subject cellulose Remove constraint Subject: cellulose Subject term caffeine Remove constraint Subject term: caffeine Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Acute caffeine mouth rinsing does not improve 10-km running performance in CYP1A2 C-allele carriers

Author:
Nayra Figueiredo; Marcela Queiroz; Fernanda P. Felício; Jéssica Ferreira; Jose Gerosa-Neto; João F. Mota; Christielly R. da Silva; Paulo C. Ghedini; Bryan Saunders; Gustavo D. Pimentel
Source:
Clinical nutrition ESPEN 2021 v.42 pp. 93-97
ISSN:
2405-4577
Subject:
blood; caffeine; cellulose; clinical nutrition; cross-over studies; heterozygosity; homozygosity; laboratories; mouth; placebos; water
Abstract:
... This study assessed whether caffeine mouth rinsing affects 10-km run performance and vertical jump in recreational runners. A double-blind, placebo-controlled, crossover study was conducted. Ten well-trained volunteers performed two trials, following caffeine or placebo mouth rinse, separated by seven days. Immediately before the 10-km run, a 10-second mouth rinse with either 300 mg of caffeine (1 ...
DOI:
10.1016/j.clnesp.2021.02.012

2. Chemical Characterization of Coffee Husks, a By-Product of Coffea arabica Production

Author:
Lais B. Cangussu; Jean Carlos Melo; Adriana S. Franca; Leandro S. Oliveira
Source:
Foods 2021 v.10 no.12 pp. -
ISSN:
2304-8158
Subject:
Coffea arabica; antioxidant activity; antioxidants; arabinogalactans; bioavailability; byproducts; caffeine; cellulose; chlorogenic acid; galactomannans; hulls; insoluble fiber; oils; pectins; phenolic compounds; pulp; trigonelline
Abstract:
... Coffee husks are a major by-product of coffee production and are currently being underutilized. The aim of this work was to chemically characterize coffee husks to allow for an adequate evaluation of their potential for valorization. Blanched and non-blanched coffee husks were characterized for extractable and non-extractable phenolics, caffeine, trigonelline content, and for their polysaccharide ...
DOI:
10.3390/foods10123125

3. Identification of a cold-adapted and metal-stimulated β-1,4-glucanase with potential use in the extraction of bioactive compounds from plants

Author:
Ricardo Rodrigues de Melo; Evandro Antonio de Lima; Gabriela Felix Persinoti; Plínio Salmazo Vieira; Amanda Silva de Sousa; Letícia Maria Zanphorlin; Priscila Oliveira de Giuseppe; Roberto Ruller; Mario Tyago Murakami
Source:
International journal of biological macromolecules 2021 v.166 pp. 190-199
ISSN:
0141-8130
Subject:
Paullinia cupana; Xanthomonas citri subsp. citri; caffeine; cellobiose; cellulose; chemical structure; cobalt; glycosides; mechanism of action; pH; phylogeny; plant pathogens; temperature
Abstract:
... Cold-adapted endo-β-1,4-glucanases hold great potential for industrial processes requiring high activity at mild temperatures such as in food processing and extraction of bioactive compounds from plants. Here, we identified and explored the specificity, mode of action, kinetic behavior, molecular structure and biotechnological application of a novel endo-β-1,4-glucanase (XacCel8) from the phytopat ...
DOI:
10.1016/j.ijbiomac.2020.10.137

4. Spent Coffee Grounds and Coffee Silverskin as Potential Materials for Packaging: A Review

Author:
Coralia V. Garcia; Young-Teck Kim
Source:
Journal of polymers and the environment 2021 v.29 no.8 pp. 2372-2384
ISSN:
1566-2543
Subject:
beverage industry; biocomposites; biopolymers; caffeine; cellulose; circular economy; environment; hydrophilicity; lignocellulose; oils; polyphenols; wastes
Abstract:
... Coffee is a widely enjoyed beverage and one of the world’s most traded commodities. However, it also generates large amounts of bio-based waste including coffee silverskin (CS) and spent coffee grounds (SCG). Both SCG and CS contain oils, polyphenols, and caffeine among other substances, showing potential for valorization. However, most of the SCG and CS generated by the coffee industry is discard ...
DOI:
10.1007/s10924-021-02067-9

5. Caffeine Ingestion Affects Performance in Different Parts of a Novel Multidirectional High-Intensity Intermittent Exercise in Futsal Athletes

Author:
Gerdiel John dos Santos Bezerra; Emmanuel Damasceno Silva Gomes; Carlos Rafaell Correia-Oliveira
Source:
Journal of the American Nutrition Association 2022 v.41 no.2 pp. 149-156
ISSN:
2769-707X
Subject:
body fat; body mass index; caffeine; cellulose; exercise; heart rate; ingestion; nutrition; placebos
Abstract:
... Objective: No study has analyzed the effects of caffeine ingestion on performance during a multidirectional high-intensity intermittent exercise. Thus, we aimed to investigate the effects of caffeine ingestion during a novel repeated agility test in futsal athletes. Methods: Using a double-blind, counterbalanced, and repeated-measures design, ten athletes (mass 71.2 ± 8.7 kg, height 1.77 ± 0.05 m, ...
DOI:
10.1080/07315724.2020.1852450

6. Caffeine increases whole-body fat oxidation during 1 h of cycling at Fatmax

Author:
Carlos Ruiz-Moreno; Jorge Gutiérrez-Hellín; Francisco J. Amaro-Gahete; Jaime González-García; Verónica Giráldez-Costas; Víctor Pérez-García; Juan Del Coso
Source:
European journal of nutrition 2021 v.60 no.4 pp. 2077-2085
ISSN:
1436-6207
Subject:
body fat; caffeine; calorimetry; cellulose; diastolic blood pressure; energy expenditure; exercise; heart rate; hypertension; ingestion; lipid metabolism; nutrition; oxidation; placebos; self-perception; vigor
Abstract:
... PURPOSE: The ergogenic effect of caffeine on exercise of maximum intensity has been well established. However, there is controversy regarding the effect of caffeine on shifting substrate oxidation at submaximal exercise. The aim of this study was to investigate the effect of acute caffeine ingestion on whole-body substrate oxidation during 1 h of cycling at the intensity that elicits maximal fat o ...
DOI:
10.1007/s00394-020-02393-z

7. Similar ergogenic effect of caffeine on anaerobic performance in men and women athletes

Author:
Beatriz Lara; Juan José Salinero; Verónica Giráldez-Costas; Juan Del Coso
Source:
European journal of nutrition 2021 v.60 no.7 pp. 4107-4114
ISSN:
1436-6207
Subject:
body weight; caffeine; cellulose; ergogenic aids; exercise; ingestion; males; placebos
Abstract:
... PURPOSE: Caffeine is widely considered an ergogenic aid to increase anaerobic performance although most of this evidence is supported by investigations with only male samples. To date, it is unknown if the ergogenic effect of caffeine on anaerobic performance is of similar magnitude in men and women athletes. The aim of this study was to determine the magnitude of the ergogenic effect of caffeine ...
DOI:
10.1007/s00394-021-02510-6

8. Spray-dried bacterial cellulose nanofibers: A new generation of pharmaceutical excipient intended for intestinal drug delivery

Author:
Andréia Bagliotti Meneguin; Hernane da Silva Barud; Rafael Miguel Sábio; Paula Zanin de Sousa; Karyn Fernanda Manieri; Luís Alexandre Pedro de Freitas; Guilherme Pacheco; Jovan Duran Alonso; Marlus Chorilli
Source:
Carbohydrate polymers 2020 v.249 pp. 116838
ISSN:
0144-8617
Subject:
biopolymers; caffeine; cellulose; cellulose nanofibers; diclofenac; drug delivery systems; drugs; intestines; lipophilicity; maltodextrins; mannitol; microparticles; pH; spray drying
Abstract:
... Defibrillation of bacterial cellulose by ultra-refining was efficient to release nanofibers (BCNF) which were spray dried with the matrices formers mannitol (MN), maltodextrin or hydroxypropylmethylcellulose. The best microsystem comprised the association of BCNF and MN, so the selected microparticles were loaded with diclofenac sodium or caffeine. Depending on the proportion of BCNF, the nanofibe ...
DOI:
10.1016/j.carbpol.2020.116838

9. Caffeine Interactions with Wood Polymers

Author:
Klára Kobetičová; Kristýna Ďurišová; Jana Nábělková
Source:
Forests 2021 v.12 no.5 pp. -
ISSN:
1999-4907
Subject:
bioactive compounds; caffeine; cellulose; hemicellulose; lignin; sinapyl alcohol; ultraviolet-visible spectroscopy; wavelengths; wood
Abstract:
... Caffeine is a verified bioactive substance suitable for wood protection against pests. Unlike studies of the biocidal effects of caffeine, caffeine-wood bonds and interactions with wood polymer structures have not been studied whatsoever thus far. For this reason, caffeine (1 g/L) interactions with the main wood components (cellulose; hemicellulose; lignin and its precursors conipheryl alcohol, si ...
DOI:
10.3390/f12050533

10. Caffeine but not acetaminophen increases 4-km cycling time-trial performance

Author:
F. Tomazini; A.C. Santos-Mariano; V.A. Andrade-Souza; V.C. Sebben; C.A.B. De Maria; D.B. Coelho; R. Bertuzzi; M.D. Silva-Cavalcante; A.E. Lima-Silva
Source:
PharmaNutrition 2020 v.12 pp. 100181
ISSN:
2213-4344
Subject:
acetaminophen; athletic performance; caffeine; cellulose; electromyography; lactic acid; men; oxygen; pain; therapeutics
Abstract:
... Acetaminophen has been combined with caffeine for therapeutic purpose, but the effect of co-ingestion of acetaminophen and caffeine on exercise performance has not been investigated. To determine the effect of isolated and combined ingestion of caffeine and acetaminophen on performance during a 4-km cycling time-trial (4TT). Eleven men, completed a 4TT one hour after the ingestion of cellulose (PL ...
DOI:
10.1016/j.phanu.2020.100181

11. Caffeine increases peripheral fatigue in low- but not in high-performing cyclists

Author:
Pamela S. Santos; Leandro C. Felippe; Guilherme A. Ferreira; Sara K. Learsi; Patrícia G. Couto; Romulo Bertuzzi; Gleber Pereira; Adriano E. Lima-Silva
Source:
Applied physiology, nutrition and metabolism 2020 v.45 no.11 pp. 1208-1215
ISSN:
1715-5320
Subject:
athletes; athletic performance; bicycling; caffeine; cellulose; exercise; metabolism; muscle fatigue; nutrition; placebos
Abstract:
... The influence of cyclists’ performance levels on caffeine-induced increases in neuromuscular fatigue after a 4-km cycling time trial (TT) was investigated. Nineteen cyclists performed a 4-km cycling TT 1 h after ingesting caffeine (5 mg·kg⁻¹) or placebo (cellulose). Changes from baseline to after exercise in voluntary activation (VA) and potentiated 1 Hz force twitch (Qₜw,ₚₒₜ) were used as markers ...
DOI:
10.1139/apnm-2019-0992

12. Effect of acute caffeine intake on hit accuracy and reaction time in professional e-sports players

Author:
Ignacio Sainz; Daniel Collado-Mateo; Juan Del Coso
Source:
Physiology & behavior 2020 v.224 pp. 113031
ISSN:
0031-9384
Subject:
absorption; behavior; body weight; caffeine; cellulose; cognition; color; ergogenic aids; ingestion; placebos
Abstract:
... Caffeine is considered a cognitive enhancer at low to moderate doses because it improves alertness, vigilance, attention, and reaction time. However, no previous investigation has assessed the effect of acute caffeine intake on e-sports-specific performance. The aim of this investigation was to determine the effect of the ingestion of 3 mg per kg of body mass on simple reaction time in a color tes ...
DOI:
10.1016/j.physbeh.2020.113031

13. Effects of acute caffeine ingestion on futsal performance in sub-elite players

Author:
Álvaro López-Samanes; Víctor Moreno-Pérez; Bruno Travassos; Juan Del Coso
Source:
European journal of nutrition 2021 v.60 no.8 pp. 4531-4540
ISSN:
1436-6207
Subject:
caffeine; cellulose; ergogenic aids; ingestion; males; placebos
Abstract:
... PURPOSE: To date, no previous investigation has studied the effect of acute caffeine ingestion on futsal performance during futsal-specific testing and during a simulated match. Therefore, the aim of this investigation was to establish the effects of acute caffeine intake on futsal-specific tests and match-play running performance in male futsal players. METHODS: Sixteen high-performance futsal pl ...
DOI:
10.1007/s00394-021-02617-w

14. Placebo Effect of Caffeine on Substrate Oxidation during Exercise

Author:
Jorge Gutiérrez-Hellín; Carlos Ruiz-Moreno; Millán Aguilar-Navarro; Alejandro Muñoz; David Varillas-Delgado; Francisco J. Amaro-Gahete; Justin D. Roberts; Juan Del Coso
Source:
Nutrients 2021 v.13 no.3 pp. -
ISSN:
2072-6643
Subject:
athletic performance; caffeine; cellulose; exercise; exercise test; lipid metabolism; oxidation; placebos; stoichiometry
Abstract:
... By using deceptive experiments in which participants are informed that they received caffeine when, in fact, they received an inert substance (i.e., placebo), several investigations have demonstrated that exercise performance can be enhanced to a similar degree as a known caffeine dose. This ‘placebo effect’ phenomenon may be part of the mechanisms explaining caffeine’s ergogenicity in exercise. H ...
DOI:
10.3390/nu13030782

15. Cellulose membrane modified with polypyrrole as an extraction device for the determination of emerging contaminants in river water with gas chromatography–mass spectrometry

Author:
Bárbara Viero de Noronha; Márcio Fernando Bergamini; Luiz Humberto Marcolino Junior; Bruno José Gonçalves da Silva
Source:
Journal of separation science 2018 v.41 no.13 pp. 2790-2798
ISSN:
1615-9306
Subject:
acetaminophen; ammonium; bisphenol A; caffeine; cellulose; desorption; gas chromatography-mass spectrometry; ice; pH; polymerization; pyrroles; river water; solid phase extraction; statistical analysis; Brazil
Abstract:
... In this study, a simple, efficient, and reusable device based on cellulose membranes modified with polypyrrole was developed to extract 14 emerging contaminants from aqueous matrices. For chemical polymerization, a low‐cost cellulose membrane was immersed in 0.1 mol/L pyrrole and 0.5 mol/L ammonium persulfate for 40 min in an ice/water bath. The cellulose membranes modified with polypyrrole were a ...
DOI:
10.1002/jssc.201800129

16. Ergogenic effects of caffeine on peak aerobic cycling power during the menstrual cycle

Author:
Beatriz Lara; Jorge Gutiérrez-Hellín; Alberto García-Bataller; Paloma Rodríguez-Fernández; Blanca Romero-Moraleda; Juan Del Coso
Source:
European journal of nutrition 2020 v.59 no.6 pp. 2525-2534
ISSN:
1436-6207
Subject:
absorption; body weight; caffeine; cellulose; ergogenic aids; exercise; ingestion; menstrual cycle; placebos
Abstract:
... PURPOSE: Recent investigations have established that the ingestion of a moderate dose of caffeine (3–6 mg kg⁻¹) can increase exercise and sports performance in women. However, it is unknown whether the ergogenicity of caffeine is similar during all phases of the menstrual cycle. The aim of this investigation was to determine the ergogenic effects of caffeine in three phases of the menstrual cycle. ...
DOI:
10.1007/s00394-019-02100-7

17. Impact of microwave-assisted extraction on roasted coffee carbohydrates, caffeine, chlorogenic acids and coloured compounds

Author:
Guido R. Lopes; Cláudia P. Passos; Carla Rodrigues; José A. Teixeira; Manuel A. Coimbra
Source:
Food research international 2020 v.129 pp. 108864
ISSN:
0963-9969
Subject:
Fourier transform infrared spectroscopy; antioxidant activity; arabinogalactans; boiling point; brewing; caffeine; cellulose; chlorogenic acid; circular economy; color; dietary fiber; galactomannans; ingredients; instant coffee; microwave treatment; solvents; sugars; temperature
Abstract:
... Microwave-assisted extraction (MAE) allows to quickly achieve soluble compounds from solid matrices due to the promotion of temperatures higher than the solvent (atmospheric) boiling point, once a closed-vessel system is used for operating at high pressure. In this study, the feasibility of MAE for producing high yield coffee extracts with properties that allow their commercial application was tes ...
DOI:
10.1016/j.foodres.2019.108864

18. Taste compound – Nanocellulose interaction assessment by fluorescence indicator displacement assay

Author:
Hanna Manninen; Nikita Durandin; Anu Hopia; Elina Vuorimaa-Laukkanen; Timo Laaksonen
Source:
Food chemistry 2020 v.318 pp. 126511
ISSN:
0308-8146
Subject:
aspartame; caffeine; cellulose; cellulose nanofibers; dyes; fluorescence; glutamic acid; naringin; quinine; stevioside; sucrose; surface area; taste
Abstract:
... Interactions between taste compounds and nanofibrillar cellulose were studied. For this, a new fluorescent indicator displacement method was developed. Two fluorescent indicators, namely, Calcofluor white and Congo red, were chosen because of their specific binding to cellulose and intrinsic fluorescence. Seven taste compounds with different structures were successfully measured together with nano ...
DOI:
10.1016/j.foodchem.2020.126511

19. Bio-refinery approach for spent coffee grounds valorization

Author:
Teresa M. Mata; António A. Martins; Nídia S. Caetano
Source:
Bioresource technology 2018 v.247 pp. 1077-1084
ISSN:
0960-8524
Subject:
antioxidants; biorefining; caffeine; case studies; cellulose; energy; flavonoids; food waste; hemicellulose; high-value products; issues and policy; lignin; lipids; metals; oils; polyphenols; recycling; tannins; waste treatment
Abstract:
... Although normally seen as a problem, current policies and strategic plans concur that if adequately managed, waste can be a source of the most interesting and valuable products, among which metals, oils and fats, lignin, cellulose and hemicelluloses, tannins, antioxidants, caffeine, polyphenols, pigments, flavonoids, through recycling, compound recovery or energy valorization, following the waste ...
DOI:
10.1016/j.biortech.2017.09.106

20. Preparation and properties of cotton fabrics finished with spent coffee extract

Author:
Eunmi Koh; Kyung Hwa Hong
Source:
Cellulose 2017 v.24 no.11 pp. 5225-5232
ISSN:
0969-0239
Subject:
Klebsiella pneumoniae; Staphylococcus aureus; antimicrobial properties; antioxidant activity; antioxidants; brewing; caffeine; cellulose; chlorogenic acid; coffee beans; cotton; cotton fabric; extracts; methanol; trigonelline
Abstract:
... The objective of this study was to evaluate the ability of spent coffee extract to enhance the antioxidant and antimicrobial properties of cotton fabrics. Spent coffee collected after brewing using an espresso machine was extracted with 60% methanol solution, and the extract was applied to cotton fabrics through a pad-dry-cure process. Of the compounds identified in the spent coffee extract, caffe ...
DOI:
10.1007/s10570-017-1466-8