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Megan R Schumaker, Charles Diako, John C Castura, Charles G Edwards, Carolyn F Ross
Brettanomyces spoilage in wine is due to the production of metabolites, which together create the distinctive 'Bretty' aroma and flavor profile associated with wine. The objective of this study was to assess the influence of three wine flavor matrices on consumer acceptance and the temporal sensory properties of wines containing high and low concentrations of Brettanomyces-metabolites. A commercial Shiraz red wine was altered through additions of whiskey lactone (oaky) and 2-isobutyl-3-methoxypyrazine (green)...
February 2019: Food Research International
Georg Krebs, Magdalena Müller, Thomas Becker, Martina Gastl
Due to changing consumer habits, non-alcoholic beer is the fastest-growing market within the beverage industry. Different processing technologies for limiting the alcohol content of beer yield in completely different matrix compositions and sensory profiles. Especially the specific sensory attributes of palate fullness, mouthfeel, and the perception of harmony (ratio harmony between sweetness and sourness) of non-alcoholic beers are often described as atypical and unbalanced by the consumer. In addition to technological aspects, the matrix components represent a significant factor...
February 2019: Food Research International
Aude A Watrelot, Tonya L Kuhl, Andrew L Waterhouse
The physical aspect of human oral astringency perception - the mouthfeel - of red wine has not been quantitatively studied in depth. In this study, the interfacial friction/lubrication properties of saliva (mucin from bovine submaxillary glands or human saliva) with red wines (cv. Cabernet sauvignon and Pinot noir) were measured with a surface force apparatus (SFA). In SFA measurements sliding occurs between smooth, undamaged surfaces with a well-defined contact area and film thickness. The surfaces were either hard, hydrophilic mica or soft, hydrophobic PDMS-coated mica which mimic in-mouth conditions...
February 2019: Food Research International
Ángel Benito, Fernando Calderón, Santiago Benito
This study researched the winemaking performance of new biotechnology involving the cooperation of Lachancea and Schizosaccharomyces genera in the production of wine. In all fermentations where Lachancea thermotolerans was involved, higher lactic acid concentrations appeared, while all fermentations where Schizosaccharomyces pombe was involved, lower levels in malic acid concentration took place. The sensorial properties of the final wines varied accordingly. Differences in mouthfeel properties and acidity occurred in the different fermentation trials...
February 2, 2019: AMB Express
Sneh Punia, Anil Kumar Siroha, Kawaljit Singh Sandhu, Maninder Kaur
This research investigated the effectiveness of heat treated (120 °C for 1, 2, 3 h) OSA modified mungbean starches, as fat replacers in cake. Physicochemical, pasting, rheological properties of the modified starch and textural and sensorial attributes of cakes incorporated with OSA modified mungbean starch at 10, 20, 30 and 40% were evaluated. The pasting viscosity of the OSA modified mungbean starches was found to be higher when compared with native starch. Magnitude of G' and G″ was slightly increased with the increase of frequency...
January 23, 2019: International Journal of Biological Macromolecules
Chantal Nederkoorn, Katrijn Houben, Remco C Havermans
Selective or picky eating can be an obstacle for a varied diet. One reason why people reject certain foods is because they do not like the texture. Several studies show that in children tactile sensitivity is related to pickiness in eating. Children who do not like the feel of sand or of slimy substances with their hands also reject more kinds of food, presumably because the children are more sensitive to the mouthfeel of several food textures. There is however hardly any research on the role of tactile sensitivity in adult food acceptance...
January 18, 2019: Appetite
Dimitra Mastorakou, Angelica Ruark, Hugo Weenen, Bernd Stahl, Markus Stieger
It is unknown how consumption of bitter foods and beverages in the maternal diet influences sensory properties of fresh human milk. The aims of this study were (1) to determine the sensory characteristics of fresh human fore and hind milk, (2) to establish relationships between sensory properties and composition of fresh human milk, and (3) to assess the relationship between bitterness of the maternal diet and human milk. Twenty-two lactating mothers generated sensory terms to describe perception of their milk and received training on sensory attribute intensity rating...
December 26, 2018: Journal of Dairy Science
M R González-Centeno, K Chira, P L Teissedre
Malolactic fermentation (MLF) and oak barrels aging are two oenological processes which modify wine composition and sensory characteristics. The effect of MLF-container (stainless steel tanks, barrels) and barrel toasting (T1, T2, T3) on ellagitannin concentration, volatile composition and sensory attributes of Chardonnay wines was evaluated. Barrel toasting had higher impact on ellagitannin content than MLF-container. When comparing both MLF-modalities, barrel-fermented wines exhibited greater amounts of vanillin and whiskey-lactones but lower concentrations of fruity aroma compounds...
April 25, 2019: Food Chemistry
Cheng Fang, Hai Du, Wei Jia, Yan Xu
Distilled liquors are important products, both culturally and economically. Chemically, as a complex mixture, distilled liquor comprises various chemical compounds in addition to ethanol. However, the chemical components of distilled liquors are still insufficiently understood and compositional differences and similarities of distilled liquors from different cultures have never been compared. For the first time, both volatile organic compounds (VOCs) and non-VOCs in distilled liquors were profiled using mass spectrometry-based metabolomic approaches...
December 21, 2018: Metabolites
Sijing Li, Keren Bindon, Susan Bastian, Kerry Wilkinson
The tannin and polysaccharide profiles and therefore sensory properties of wine are influenced by fruit maturity at harvest, and practices employed during winemaking. This study investigated the extent to which commercial winemaking supplements (skin and seed tannins, and mannoprotein (MP)) can enhance the mouthfeel properties of red wine, in particular, wine made from grapes harvested before commercial ripeness (early-harvest). Supplements were added to wines made from Shiraz grapes harvested at 20.8 and 24...
December 12, 2018: Foods (Basel, Switzerland)
Jingjing Liu, Ying Cui, Yizhou Chen, Wei Wang, Yuanyuan Tang, Hong Men
In this study, to obtain a texture perception that is closer to the human sense, we designed eight bionic tongue indenters based on the law of the physiology of mandibular movements and tongue movements features, set up a bionic tongue distributed mechanical testing device, performed in vitro simulations to obtain the distributed mechanical information over the tongue surface, and preliminarily constructed a food fineness perception evaluation model. By capturing a large number of tongue movements during chewing, we analyzed and simulated four representative tongue movement states including the tiled state, sunken state, raised state, and overturned state of the tongue...
December 3, 2018: Sensors
S Ikeda, D Kondoh, N P D Aryantini, T Urashima, K Fukuda
Viscous exopolysaccharide (EPS)-producing lactic acid bacteria (LAB) have received increasing interest in the dairy industry because of their capability to improve the texture and mouthfeel of fermented dairy products. To date, enormous efforts have been made to reveal the relationship between texture and EPS production in fermented milk products such as yogurt. However, the structure-rheology relationship of EPSs themselves is not yet well understood due to their low yields in general and their wide variety of chemical structures...
2019: Methods in Molecular Biology
Emma P Halmos, Alexandra Mack, Peter R Gibson
BACKGROUND: Dietary emulsifiers are the latest food additives to be associated with intestinal, cardiovascular and metabolic health. Most recently, there are postulations around certain emulsifiers playing a role in the development of Crohn's disease. AIM: To review the use of food-based emulsifiers, their content in the food supply and mechanisms by which they might exert potentially detrimental biological effects. METHODS: Information on emulsifiers and thickeners relevant to human health was critically examined...
November 28, 2018: Alimentary Pharmacology & Therapeutics
M A Paissoni, P Waffo-Teguo, W Ma, M Jourdes, L Rolle, P -L Teissedre
Anthocyanins are water-soluble pigments found in the cell vacuoles of fruits and flowers, performing several roles from insects attraction to stress protection. Their antioxidant activity contributes to human health, and consuming plant-derived products provides their higher source in the diet. Although their colour and nutritional features, their contribution to sensory properties of foods has not been widely investigated. In wine, preferences are connected with sensory attributes of colour, aroma, taste, and mouthfeel...
November 20, 2018: Scientific Reports
Guy Carpenter, Leanne Cleaver, Matthew Blakeley, Nurulezah Hasbullah, Jack Houghton, Alex Gardner
The bitterness of vegetables is a leading reason why they are avoided by children and some adults. Bitterness is perceived via TAS2R receptors located on the tongue. In contrast, astringency is a mouthfeel rather than a taste, and is perceived as a dry, puckering sensation. To date few reports have suggested any interactions between the two processes even though they often occur simultaneously in many real foods. In this study, we have used Brussels sprouts as an exemplar bitter vegetable and examined the influence of a number of different interventions on perceived intensity...
November 2, 2018: Journal of Texture Studies
Jingyi Mo, Enyu Guo, D Graham McCartney, David S Eastwood, Julian Bent, Gerard Van Dalen, Peter Schuetz, Peter Rockett, Peter D Lee
Ice cream is a complex multi-phase colloidal soft-solid and its three-dimensional microstructure plays a critical role in determining the oral sensory experience or mouthfeel. Using in-line phase contrast synchrotron X-ray tomography, we capture the rapid evolution of the ice cream microstructure during heat shock conditions in situ and operando , on a time scale of minutes. The further evolution of the ice cream microstructure during storage and abuse was captured using ex situ tomography on a time scale of days...
October 19, 2018: Materials
Nannan Li, Binjia Zhang, Siming Zhao, Meng Niu, Caihua Jia, Qilin Huang, Yejia Liu, Qinlu Lin
With screening of Lactobacillus fermentum M9 and Candida santamariae Y11 from a natural fermentation broth (Jinjian) for rice noodle production, this work concerns how fermentation with M9:Y11 suspensions of different volume ratios affects the texture and sensory features of rice noodles. The M9:Y11 strains regulated rice structures and thus the physicochemical features of rice noodles. In particular, 5:5 and 8:2 v/v M9:Y11 strains endowed rice noodles with better texture and sensory performance than did Jinjian...
January 2019: International Journal of Biological Macromolecules
Diego Taladrid, Laura Lorente, Begoña Bartolomé, M Victoria Moreno-Arribas, Laura Laguna
Wine sensory sessions normally involve the tasting of several samples, to remove food residues from the mouth the use of palate cleansers (PC) is needed. Until now, there is no agreement on the best PC to use during wine tasting sessions. The aim of this work is to study the relationship between the components retained in saliva after wine tasting and the remnant sensory feeling (astringency, alcohol, and acidity). For that, different common PC (water, carbonated water, and milk) were tested and saliva samples (expectorated and scraped) from nine trained panelists were collected after wine with and without PC trials...
September 10, 2018: Journal of Texture Studies
David N Cox, Gilly A Hendrie, Haidee J Lease, Megan A Rebuli, Mary Barnes
As "taste" is a primary driver of food choice, the objective of this study was to understand how the sensory properties of diets relate to energy intake (EI). A database of 720 frequently consumed foods, described by a trained panel for basic tastes (sweetness, saltiness) and fatty mouthfeel, was systematically applied to all foods reportedly consumed in 24hr recalls as part of the 2011-2012 Australian National Nutrition and Physical Activity Survey (n = 12,153 adults and children). Food groups were classified according to the Australian Guide to Healthy Eating, and their contribution to total nutrient and sensory intake estimated...
August 31, 2018: Appetite
Revathy Krishna Kumar, Manmath Bejkar, Shanshan Du, Luca Serventi
Gluten-free bread is generally associated with several quality defects such as reduced volume, dry texture and poor mouthfeel. Flaxseed gum has been shown to increase viscosity of bread dough. The aim of this study was to evaluate the effect of 1% (total base) addition of seed powders from flax ( Linum usitatissimum) and four acacia cultivars ( Acacia dealbata, A. decurrens, A. terminalis and A. verniciflua) on pasting properties, texture and volume of gluten-free bread. The incorporation of all seed powders reduced crumb hardness by 30-65% and increased specific loaf volume by 50%...
August 31, 2018: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
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