Search results for "Chocolate"

Nosespace of dark chocolates differing in sensory characteristics using PTR-TOF-MS and link to flavour perception through simultaneous Temporal Domin…

2019

International audience; Aroma of dark chocolate depends on process and cocoa origin and variety. Repeated sensory analyses of standardized chocolates produced from various cocoa beans using a standard fabrication process allowed classifying them in four sensory categories. These categories were confirmed in a PTR-MS analysis of the volatilome of 206 chocolate samples [1]. The objective here was to study the nosespace of a subset of chocolates simultaneously with their temporal profile to better explain the sensory categorization at a perception level. A Temporal Dominance of Sensations (TDS) evaluation of 8 chocolates (2 selected per category) was done in triplicate by 12 subjects while the…

Nosespace PTR-MS analysis with simutaneous TDS or TCATA sensory evaluation: Release and perception of the aroma of dark chocolates differing in senso…

2021

International audience; Perception of flavor is a dynamic process during which the concentration of aroma molecules at the olfactory epithelium varies with time as they are released progressively from the food in the mouth during consumption. However, how the various components combine to produce a sensory impression is still not completely understood. Real-time mass spectrometry (MS) techniques that measure aroma compounds directly in the nose (nosespace) aim at obtaining data patterns that are supposed to reflect the way aromas are released in real time during food consumption. These patterns are supposed to be representative of the retronasal stimuli perception. Real-time sensory methods…

Does aroma composition allow to discriminate groups of dark chocolates categorized on the basis of their organoleptic properties? Inputs of direct-in…

2017

International audience

Organoleptic properties of dark chocolates investigated by direct-injection mass spectrometry (PTR-ToF-MS) and GC-MS-Olfactometry

2017

Chocolates classification according to their volatile compounds fingerprints measured by PTR-ToF-MS

2017

Dark chocolates develop several organoleptic characteristics depending on cocoa origin, cocoa variety and fabrication process. These parameters influence the chemical composition of the chocolates, and among other components volatile organic compounds (VOCs) responsible for aroma mainly determine their sensory perception. Sensory evaluation is able to discriminate chocolates with various organoleptic properties. Proton Transfer Reaction Mass Spectrometry (PTR-MS) is capable of monitoring VOCs released in foodstuffs headspace at ppb level in real time. But is PTR-MS able to discriminate chocolates as sensory analysis does? To answer this question, 192 dark chocolates produced from cocoa bean…

Organoleptic properties of dark chocolates investigated by direct-injection mass spectrometry (PTR-ToF-MS) and GC-Olfactometry

2017

Effects of different emulsifiers and refining time on rheological and textural characteristics of compound chocolate

2018

The purpose of this study was to investigate the possibility of producing reduced fat dark compound chocolate in the ball mill refiner and using some selected emulsifiers. The effects of selected emulsifiers including lecithin, Polyglycerol polyricinoleate (PGPR) and citrem in two levels and two refining times on the characteristics such as moisture, particle size, hardness and rheological properties of the samples was examined. Data analysis revealed that the Casson model was appropriate to describe the rheological behavior of the samples containing lecithin and citrem; however, Power law model was appropriate for the samples containing PGPR. The results showed that citrem is the most effe…

Reduction of saturated fat in chocolate by using sunflower oil-hydroxypropyl methylcellulose based oleogels

2021

The suitability of sunflower oil-hydroxypropyl methylcellulose (HPMC) based oleogel obtained by emulsion template approach as partial cocoa butter (CB) replacer in chocolates was investigated. A level of 50% CB replacement was optimum, as higher level of replacement affected the sensory appearance in comparison to the control chocolate (without added oleogel). Four levels of HPMC (0.5, 1, 1.5 and 2%) were considered. Textural and calorimetric properties, as well as sensory properties obtained by Free Choice Profile of the formulated chocolates were investigated. Partial replacement of CB by the sunflower-HPMC based oleogel reduced significantly the chocolate hardness. Higher HPMC concentrat…

The impact of chocolate on cardiovascular health

2011

Cardiovascular disease is the leading determinant of mortality and morbidity in women. Functional foods are attracting interest as potential regulators of the susceptibility to disease. Supported by epidemiological evidence, chocolate has emerged as a possible modulator of cardiovascular risk. Chocolate, or cocoa as the natural source, contains flavanols, a subclass of flavonoids. The latter years have witnessed an increasing number of experimental and clinical studies that suggest a protective effect of chocolate against atherogenesis. Oxidative stress, inflammation, and endothelial function define three biological mechanisms that have shown sensitivity to chocolate. Moreover, the consumpt…

Nose-space of dark chocolates using PTR-ToF-MS and link to flavour perception through simultaneous Temporal Dominance of Sensations (TDS)

2018

International audience; Introduction: Aroma of dark chocolate depends on process and cocoa origin and variety. A sensory analysis of 206 standardized chocolates produced from various cocoa beans classified them in four sensory categories. These categories were confirmed in a PTR-MS analysis of the chocolates volatilome [1]. The objective here was to study the nosespace of a subset of chocolates simultaneously with their temporal profile to better explain the sensory categorization at a perception level. Methods: A Temporal Dominance of Sensations (TDS) evaluation of 8 chocolates (2 selected per category) was done in triplicate by 12 subjects while the aroma released in their nose were simul…