Sensory impact of three different conching times on white chocolates with spray-dried and freeze-dried açai (Euterpe oleracea)

2019 ◽  
Vol 25 (6) ◽  
pp. 480-490
Author(s):  
PPC Augusto ◽  
FZ Vissotto ◽  
HMA Bolini

Nutritional profile of white chocolate is discussed for its high contents of sugar and fat, without benefits provided by cocoa polyphenols present in milk and dark chocolate. Thus, fruit addition may increase its nutritional characteristics. In this study, white chocolates with freeze-dried and spray-dried açai ( Euterpe oleracea) were developed and their sensory characteristics were mapped through quantitative descriptive analysis and consumers' acceptance. Samples were submitted to three different conching times (6, 12, and 18 hours). Quantitative descriptive analysis results suggest type of dehydrated açai had much greater impact over samples' sensory characteristics than conching time, freeze-dried açai samples having greater intensity of açai sensory features, while spray-dried açai samples showing predominance of white chocolate sensory characteristics. Conching time had impact over texture of freeze-dried açai samples, since assessors considered sample conched for only 6 h was significantly harder and less melting than samples conched for 12 and 18 h. Consumer’s acceptance analysis results showed that freeze-dried açai samples were more widely accepted by consumers for appearance, aroma, and texture, and exhibited segmentation of acceptance for flavor and overall liking, although freeze-dried açai samples conched for 12 and 18 h were more accepted than sample conched only for 6 h.

Author(s):  
Márton István ◽  
Zoltán Kókai

Abstract Napping is one of the rapid sensory profiling methods, which was established recently to meet the needs of sensory and consumer researchers. This approach provides a holistic evaluation of the tested sample through their positioning in a 2-dimensional space. The protocol of the analysis is somewhat different from the traditionally applied descriptive methods, like Quantitative Descriptive Analysis. In our review, we focus on the applicability of Napping in the field of fermented goods. The accompanying procedures are also investigated (typically Flash Profiling, CATA, and further methods), in order to understand how the combined datasets facilitate the understanding of the sensory characteristics of the products.


Author(s):  
DELCIO SANDI ◽  
JOSÉ BENÍCIO PAES CHAVES ◽  
JUNE FERREIRA MAIA PARREIRAS ◽  
ANTÔNIO CARLOS GOMES DE SOUZA ◽  
MARCO TÚLIO COELHO DA SILVA

Usou-se a Análise Descritiva Quantitativa (ADQ) para avaliar as características sensoriais de suco de maracujá-amarelo ( Passiflora edulis var. flavicarpa), submetido a três binômios de pasteurização (85oC/27s, 80oC/41s, 75oC/60s) e armazenamento por 120 dias sob duas temperaturas (25 ± 5oC e 5 ± 1oC). As características sensoriais (homogeneidade da cor, cor laranja, aroma característico, aroma floral, aroma doce, sabor característico, sabor estranho, sabor oxidado, sabor cozido, gosto doce e gosto amargo) foram apresentadas por meio de perfis sensoriais, junto com a descrição dos atributos sensoriais e a definição de referências para treinamento dos julgadores. Não foram detectadas diferenças significativas para a maioria das características sensoriais entre as amostras, considerando apenas os binômios de tempo-temperatura de pasteurização. Durante o armazenamento, as amostras pasteurizadas a 85oC/ 27s apresentaram as menores alterações nas características sensoriais estudadas. A pasteurização a 75oC/60s mostrou-se prejudicial, principalmente para as características de cor, aroma doce, aroma característico, aroma floral e sabor característico. O armazenamento sob refrigeração apresentou melhor tendência para a manutenção das características de qualidade sensorial do suco de maracujá. SENSORY QUALITY OF YELLOW PASSION FRUIT JUICE (Passiflora edulis var. flavicarpa) UNDER PASTEURIZATION AND STORAGE Abstract Quantitative descriptive analysis (QDA) was used to evaluate the sensory characteristics of yellow passion fruit juice ( Passiflora edulis flavicarpa) submitted to three pasteurization binomial (85oC/27s, 80oC/41s, 75oC/60s) and stored for 120 days under two different temperatures (25±5oC e 5±1oC). The sensory characteristics (color homogeneity, orange color, typical aroma, floral aroma, sweet aroma, typical flavor, off flavor, oxidized flavor, cooked flavor and sweet and bitter tastes) are presented by sensory profiles with the description of sensory attributes and reference definitions to train the judges. The results show that the pasteurization had different effects on the juice sensory attributes. However, it was not found significant differences for most of the sensory characteristics when the different time-temperature binomial of the juice pasteurization were compared. During the storage, the passion fruit juice pasteurized at 85oC/27s presented the lowest changes on the sensory attributes. The pasteurization at 75oC/60s was harmful mainly to the color characteristics, sweet aroma, characteristic aroma, floral aroma and typical flavor. Storage under refrigeration tended to keep the best juice quality characteristics.


1999 ◽  
Vol 5 (3) ◽  
pp. 251-254 ◽  
Author(s):  
S.E. Zorrilla ◽  
A.C. Rubiolo

Fynbo cheeses salted with NaCl and with NaCl/KCl brine were evaluated for sensory characteristics over one month of ripening period. Samples were tested by a trained five-member panel. Semi-struc tured quantitative descriptive analysis scales were used to evaluate saltiness, bitterness, firmness and final quality. Typical values of saltiness and firmness were observed at 29 ripening days in the cheeses studied ( p < 0.05). Although slight bitterness was detected in cheeses salted with KCl/NaCl brine, both types of cheese were considered acceptable for commercialization ( p < 0.05).


Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1358 ◽  
Author(s):  
Maria Belen Rios ◽  
Amaia Iriondo-DeHond ◽  
Maite Iriondo-DeHond ◽  
Teresa Herrera ◽  
Diego Velasco ◽  
...  

This study aimed to assess the physicochemical, nutritional and sensory properties of gluten-free breads containing isolated coffee cascara dietary fiber (ICCDF) as a food ingredient. ICCDF was obtained by aqueous extraction. The oil and water holding capacity and the nutritional profile of the novel ingredient were determined. Its safety was certificated by analysis of ochratoxin A, caffeine and gluten. Gluten-free bread formulations were prepared enriching a commercial bakery premix in rice protein (8%) and ICCDF (3% and 4.5%). Nutritional profile of the novel gluten-free breads (dietary fiber, protein, amino acids, lipids, fatty acid profile and resistant starch), as well as bread volume, crumb density, moisture, firmness, elasticity and color intensity were determined. A sensory quantitative descriptive analysis of the breads was conducted using eight trained panelists. New breads showed significantly higher (p < 0.05) content of dietary fiber and protein than the control bread. The addition of ICCDF allowed increasing dough yield, a less crumb firmness and a higher crumb elasticity. The nutrition claims “source of protein and high in dietary fiber” were assigned to the new formulations. In conclusion, a certificated gluten-free bread with improved nutritional and physicochemical properties and good sensorial profile was obtained.


Author(s):  
Saris Ulises Ramos-Gabriel ◽  
José Andrés Herrera- Corredor ◽  
José Guadalupe Gamboa- Alvarado ◽  
Emmanuel de Jesús Ramírez- Rivera

The objective of this research was to evaluate the impact of fermented whey on the sensory characteristics of ripened cheeses and consumer preference. Ripened cheeses from 24, 25, 26, 27 and 28 months were characterized. The sensory techniques used were: Quantitative Descriptive Analysis®, Temporal Dominance of Sensations and External Preference Mapping. The results showed that the ripened cheeses of 24 to 27 months they were characterized by white color, acidified milk smell, fat aroma and acidified cream smell. The cheese of 28 months of ripened was perceived as fermented milk smell, cow smell and fat smell. The dominant attributes were fat aroma, bitter aftertaste, acid aftertaste and salty. Consumers preferred cheeses from 26 and 27 months of ripening. These results demonstrate the potential use of fermented whey as an alternative to produce ripened cheeses with sensory characteristics and their relation to consumer preference.


2018 ◽  
Vol 1 (1) ◽  
pp. 34-43
Author(s):  
Nindy Danisa Wulandari

Development of food security implemented to meet the human basic needs that provide benefits fairly and equitably based on self – reliance, and not contrary to public faith. Referring to the government regulation No 22 of 2009 concerning Food Consumption Diversification Acceleration (P2KP). However, it is not supported by the development of women farmers. The method use in this research is quantitative descriptive analysis using SWOT (Strength, Weakness, Opportunity and Treath). The samples in this study is the purposive sample. Result of a study showed the amount of income earned from the group of women farmers in the one month is 150,000/ members. Proper development strategies used in the development strategies used in the development KWT Melati is a Growth Oriented Strategy is very profitable strategy to seize opportunities with the strength. Pembangunan ketahan pangan dilaksanakan untuk memenuhi kebutuhan dasar manusia yang memberikan manfaat secara adil dan merata berdasarkan kemandirian, dan tidak bertentangan dengan keyakinan masyarakat. Mengacu pada Peraturan Pemerintah No 22 Tahun 2009 mengenai Percepatan Penganekaragaman Konsumsi Pangan (P2KP). Namun, hal ini tidak didukung dengan adanya pengembangan kelompok wanita tani. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif dengan menggunakan analisis SWOT (Strength, Weakness, Opportunity and Treath). Penentuan sampel dalam penelitian ini adalah dengan sampel purposive. Hasil penelitian menunjukan besaran pendapatan yang diperoleh dari adanya kelompok wanita tani dalam satu bulan adalah Rp.150.000/bulan/anggota. Strategi pengembangan yang tepat digunakan dalam pengembangan Kelompok Wanita Tani (KWT) Melati adalah Growth Oriented Strategy.


2019 ◽  
Vol 2 (2) ◽  
pp. 372
Author(s):  
Suryanta Suryanta

This study aims to analyze whether the performance of regional financial management influences economic growth in Depok City, analyzes whether the performance of regional financial management influences unemployment in Depok City, and analyzes whether the performance of regional financial management affects poverty in Depok City with the 2006 study period- 2015 The analysis method used is quantitative descriptive analysis and simple linear regression statistical analysis. Based on the results of hypothesis testing it can be proven that the performance of regional financial management (independence ratio) has a positive and significant effect on economic growth, this can be seen from the value of sig. 0.046 <0.05 with a regression coefficient of 1.883. Then the performance of regional financial management has a negative and significant effect on unemployment, this can be seen from the value of sig. 0.030 <0.05 with a regression coefficient of -6.864. But the performance of regional financial management has no significant effect on poverty, this can be seen from the sig. 0.065> 0.05 with a regression coefficient of -0.512. This can be due to the still high income gap in the community, so that the increasing regional income has not been able to significantly reduce poverty in Depok.


2012 ◽  
Vol 32 (4) ◽  
pp. 819-825 ◽  
Author(s):  
Anderson do Nascimento Oliveira ◽  
Afonso Mota Ramos ◽  
Valéria Paula Rodrigues Minim ◽  
José Benício Paes Chaves

This study investigated the degradation kinetics of the sensory attributes of commercial whole mango (cv. Ubá) juice and evaluated its sensory acceptability during storage. Samples of the product were stored in a BOD incubator at 25, 35, and 45 ºC under 24 hours light (650 lux) for 120 days. Sensory analyses (Quantitative Descriptive Analysis - QDA) were conducted with trained panel and consumers. The correlations between sensory and physicochemical characteristics (instrumental color and vitamin C content) were also assessed. Flavor, aroma, and color vary with temperature and time of storage. Aroma and flavor were most affected by temperature with values of Q10 and Ea equal to 4.16 and 25.31 kcal.mol-1; and 3.61 and 22.80 kcal.mol-1, respectively. The sensory changes observed by the trained panel are related to the degradation of vitamin C and changes in the color coordinates (L* and ΔE*) of mango juice. However, consumers were unable to detect changes in the overall quality of the juices. It was observed that the QDA can be a useful tool to assess shelf-life.


2021 ◽  
Vol 11 (4) ◽  
pp. 1410
Author(s):  
Martina Daute ◽  
Frances Jack ◽  
Irene Baxter ◽  
Barry Harrison ◽  
John Grigor ◽  
...  

This study compared the use of three sensory and analytical techniques: Quantitative Descriptive Analysis (QDA), Napping, and Gas Chromatography-Mass Spectrometry (GC-MS) for the assessment of flavour in nine unmatured whisky spirits produced using different yeasts. Hierarchical Multiple Factor Analysis (HMFA) showed a similar pattern of sample discrimination (RV scores: 0.895–0.927) across the techniques: spirits were mostly separated by their Alcohol by Volume (ABV). Low ABV spirits tended to have heavier flavour characteristics (feinty, cereal, sour, oily, sulphury) than high ABV spirits, which were lighter in character (fruity, sweet, floral, solventy, soapy). QDA differentiated best between low ABV spirits and GC-MS between high ABV spirits, with Napping having the lowest resolution. QDA was time-consuming but provided quantitative flavour profiles of each spirit that could be readily compared. Napping, although quicker, gave an overview of the flavour differences of the spirits, while GC-MS provided semi-quantitative ratios of 96 flavour compounds for differentiating between spirits. Ester, arenes and certain alcohols were found in higher concentrations in high ABV spirits and other alcohols and aldehydes in low ABV spirits. The most comprehensive insights on spirit flavour differences produced by different yeast strains are obtained through the application of a combination of approaches.


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