scholarly journals Green Extracts from Coffee Pulp and Their Application in the Development of Innovative Brews

2020 ◽  
Vol 10 (19) ◽  
pp. 6982 ◽  
Author(s):  
Anastasia Loukri ◽  
Petroula Tsitlakidou ◽  
Athanasia Goula ◽  
Andreana N. Assimopoulou ◽  
Konstantinos N. Kontogiannopoulos ◽  
...  

Coffee pulp, a by-product of coffee production, contains valuable compounds such as caffeine and chlorogenic acid with high antiradical activity. In this study, aqueous solutions of β-cyclodextrin (β-CD) were used as a non-conventional solvent for the extraction of targeted compounds from coffee pulp. The parameters of β-CD concentration (Cβcd), liquid-to-solid ratio (L/S), and temperature (T) were evaluated based on the antiradical activity (AAR) and the caffeine content (CCaf). The optimum operational conditions were found to be Cβcd: 9.25 mg/mL, L/S: 30 mL/g and T: 80 °C. The sensory profiles of brews prepared with coffee and coffee pulp with or without cyclodextrin were studied with quantitative descriptive analysis. The brew from the by-product had fruity, botanic, sweet and sourness sensory properties, and cyclodextrin was found to be able to affect the overall taste of the brew.

Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 211
Author(s):  
Ke Tang ◽  
Yulu Sun ◽  
Xiaoqian Zhang ◽  
Jiming Li ◽  
Yan Xu

The aim of this study is to comprehensively investigate the aroma composition and sensory attributes of Vidal icewine fermented with four yeast strains (ST, K1, EC1118, and R2). A total of 485 kinds of volatile components were identified by comprehensive two-dimensional gas chromatography-time of flight mass spectrometry, among which 347 kinds of volatile compounds were the same in four kinds of sample. The heat map was conducted with 156 volatile compounds, which have aroma contributions, and the analysis results identified the characteristics of the aroma composition of icewine fermented with different yeasts. Quantitative descriptive analysis was performed with a trained panel to obtain the sensory profiles. The aroma attributes of honey and nut of the icewine fermented by R2 were much higher than others. Partial least squares discriminant analysis further provided 40 compounds that were mainly responsible for the differences of the aroma characteristics of the icewines fermented by four yeasts. This study provides more data on the current status of Vidal icewines by main commercial yeasts.


2013 ◽  
Vol 35 (2) ◽  
pp. 594-602 ◽  
Author(s):  
Paula Bacelar Leite ◽  
Eliete da Silva Bispo ◽  
Ligia Regina Radomille de Santana

The present study evaluated the sensory quality of chocolates obtained from two cocoa cultivars (PH16 and SR162) resistant to Moniliophtora perniciosa mould comparing to a conventional cocoa that is not resistant to the disease. The acceptability of the chocolates was assessed and the promising cultivars with relevant sensory and commercial attributes could be indicated to cocoa producers and chocolate manufacturers. The descriptive terminology and the sensory profile of chocolates were developed by Quantitative Descriptive Analysis (QDA). Ten panelists, selected on the basis of their discriminatory capacity and reproducibility, defined eleven sensory descriptors, their respective reference materials and the descriptive evaluation ballot. The data were analyzed using ANOVA, Principal Component Analysis (PCA) and Tukey's test to compare the means. The results revealed significant differences among the sensory profiles of the chocolates. Chocolates from the PH16 cultivar were characterized by a darker brown color, more intense flavor and odor of chocolate, bitterness and a firmer texture, which are important sensory and commercial attributes. Chocolates from the SR162 cultivar were characterized by a greater sweetness and melting quality and chocolates from the conventional treatment presented intermediate sensory characteristics between those of the other two chocolates. All samples indicated high acceptance, but chocolates from the PH16 and conventional cultivars obtained higher purchase intention scores.


2007 ◽  
Vol 67 (1) ◽  
pp. 163-176 ◽  
Author(s):  
Paweł Szymczak ◽  
Marek Gajewski ◽  
Jadwiga Radzanowska ◽  
Aleksandra Dąbrowska

Sensory Quality and Consumer Liking of Carrot Cultivars of Different GenotypeThe aim of this work was to determine sensory quality differentiation in various carrot cultivars of different genotype - with orange, purple and yellow storage roots. Consumer's test for liking carrots was performed in order to find consumer's preference level for carrots types and to determine the relationship between sensory profiles and consumer's attitude to carrots. An approach was also done to find correlations between descriptors of sensory quality and liking level, and to determine which sensory quality descriptors significantly affect overall sensory quality impression. The two-year studies were carried out in Warsaw Agricultural University in 2005-2006. Carrots were grown on the experimental field of the University. Eight cultivars of different storage root colour and shape were chosen: 'Perfekcja', 'Interceptor', 'Vita Longa', 'Nebula', 'Deep Purple', 'Purple Haze', 'Mello Yello', 'White Satin'. The trained panel, consisting of 12 persons, carried out the evaluation, using the quantitative descriptive analysis method (QDA). At the first part of QDA procedure, experts generated a set of 13 descriptors for odour, appearance, texture and flavour/taste of carrot. Consumer test of carrots liking was also performed by 65-person group of volunteers in different age of both sexes. For this evaluation non-structural scale was also used, with anchoring points: 'I do not like it' - 'I like it very much'. Consumer liking for colour, flavour and overall liking was evaluated. Principal component analysis and regression analysis were performed on obtained data. Results show large differentiation of sensory traits of investigated cultivars. The biggest influence on overall quality exerted off-odour intensity, flesh firmness, flavour of raw carrot intensity, bitter taste and off-flavour intensity. Consumer's preference was also differentiated and highest scores for liking got orange coloured cultivars. In respect of flavour liking, 'Perfekcja', 'Interceptor' and 'Nebula' were the most desired cultivars by consumers of both sexes, and 'Mello Yello' was the lowest desired cultivar. There were small differences in preference between females and males. Flavour liking of carrots was strongly and positively correlated with flesh juiciness and crunchiness of roots.


Author(s):  
RITA DE CÁSSIA S. CELESTE ORMENESE ◽  
DANIELA ARRUDA MARCHESE ◽  
MOACIR EVANDRO LAGE ◽  
MARIA EUGÊNIA DE OLIVEIRA MAMEDE ◽  
GLÁUCIA MARIA NAVARRO ABREU ◽  
...  

O objetivo deste trabalho foi construir o perfil sensorial de três marcas comerciais de biscoito recheado sabor chocolate, líderes no mercado consumidor. Empregou-se a análise descritiva quantitativa (ADQ) para avaliar os atributos sensoriais dos produtos e aplicou-se teste de consumidor para verificar quais atributos determinam sua aceitação e preferência junto ao mercado. Concluiu-se que as amostras que competem no mercado são muito distintas em suas características sensoriais. O biscoito que apresentou melhor aceitação pelos consumidores evidenciou que atributos como aroma e sabor de cacau, crocância, baixa arenosidade do recheio, boa dissolução e pouca resistência à mordida são características bastante importantes para a determinação da preferência no mercado. SENSORIAL PROFILE AND STUFFED COOKIES WITH CHOCOLATE FLAVOR CONSUMER TEST Abstract The objective of this work was to construct sensory profiles of three commercial brands of stuffed cookies with chocolate flavor, leaders in the consumer market. Quantitative Descriptive Analysis (QDA) was employed to evaluate the sensorial attributes of products and consumer test to verify which attributes determines its acceptation and preference in the market. It was concluded that the samples, which compete in the market, are sensorially very different. The cookie that presented better acceptance by consumers evidenced that the attributes as aroma and cacao flavor, crunchiness, low sandiness of stuffing, good dissolution and low bite resistance, are very important characteristics for the market preference.


2013 ◽  
Vol 31 (No. 5) ◽  
pp. 438-444 ◽  
Author(s):  
P. Papetti ◽  
A. Carelli

Caciottina massaggiata di Amaseno, a typical dairy product of the Lazio Region prepared from buffalo milk, was analysed for moisture, fat, protein, pH, and acidity content at different storage (0, 3, 6, and 9 months after production). Cheeses were also evaluated for various sensory attributes (taste, flavour, texture, and overall acceptability) during storage. We evaluated the flavour profile and acceptability of Caciottina cheeses of varying maturity using a descriptive analysis. Descriptive sensory profiles of selected cheeses were determined using a trained panel (n = 12) and an established cheese flavour sensory language. In quantitative descriptive analysis a trained panel rated the cheeses for colour, odour, taste and texture. In the affective tests the panellists evaluated the samples for overall quality. The results proved that months of production had significant effects on the sensory quality of the cheeses.


2016 ◽  
Vol 22 (8) ◽  
pp. 720-731 ◽  
Author(s):  
Mírian Luisa Faria Freitas ◽  
Mariana Borges de Lima Dutra ◽  
Helena Maria André Bolini

The objective of this study was to evaluate the sensory properties and acceptability of pitanga nectar samples prepared with sucrose and different sweeteners (sucralose, aspartame, stevia with 40% rebaudioside A, stevia with 95% rebaudioside A, neotame, and a 2:1 cyclamate/saccharin blend). A total of 13 assessors participated in a quantitative descriptive analysis and evaluated the samples in relation to the descriptor terms. The acceptability test was carried out by 120 fruit juice consumers. The results of the quantitative descriptive analysis of pitanga nectar showed that samples prepared with sucralose, aspartame, and the 2:1 cyclamate/saccharin blend had sensory profiles similar to that of the sample prepared with sucrose. Consumers' most accepted samples were prepared with sucrose, sucralose, aspartame, and neotame. The sweeteners that have the greatest potential to replace sucrose in pitanga nectar are sucralose and aspartame.


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.


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