Navegando por Autor "Mori, André Luiz Buzzo"

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Aceitação sensorial de café solúvel adicionado de café torrado e moído
(Embrapa Café, 2015-06) Francisco, Julyene Silva; Mori, André Luiz Buzzo; Santos, Ana Carolina Forgati dos; Benassi, Marta de Toledo
O objetivo do trabalho foi elaborar e caracterizar quanto à aceitação sensorial um café solúvel adicionado de café torrado e moído micronizado. Duas formulações do produto foram elaboradas, EA/TM e EC/TM, com adição de 5% de café torrado e moído micronizado (TM) a extratos solúveis de Coffea arabica (EA) e Coffea canephora (EC). As bebidas dos extratos e formulações foram comparadas por teste sensorial de diferença e analisadas quanto à aceitação. A adição de TM (5%) foi percebida sensorialmente somente no produto EA/TM. As bebidas adicionadas de café torrado foram igualmente aceitas (média de 6,3 em escala de 10), e a adição de TM não modificou a aceitação. Tendo em vista a boa aceitação sensorial e por não ter havido percepção da adição de TM, é preconizado o uso do extrato canéfora na produção de café solúvel adicionado de café torrado e moído para obtenção de produtos com boa aceitação.
Caveol e cafestol em bebidas de café espresso preparadas com cápsulas comerciais brasileiras
(Embrapa Café, 2015) Wuerges, Karla Leticia; Santos, Ana Carolina Forgati dos; Mori, André Luiz Buzzo; Benassi, Marta de Toledo
O objetivo do trabalho foi determinar os teores de caveol e cafestol em bebidas de café preparadas com cápsulas comerciais para espresso. Foram avaliadas dois tipos de cápsulas do mercado brasileiro, com 5 repetições de preparo. As cápsulas apresentavam diferenças na quantidade e tipo de café torrado e moído empregado (blends de café arábica e robusta ou café 100% arábica), e nas condições de tempo e volume de extração (dose) preconizadas pelo fabricante. As bebidas apresentaram de 2,42 e 4,88 g de sólidos por 100 mL, e observou-se redução na concentração de sólidos extraídos com o aumento no tempo/volume de extração. A variação nos teores de diterpenos entre preparos foi inferior a 30%. Observou-se teores de 0,40 a 1,35 mg de caveol e 0,38 a 1,20 mg de cafestol por dose. Considerando-se os teores de cafestol, há indicação que o consumo moderado de café preparado a partir de cápsulas comerciais não implicaria em efeito hipercolesterolêmico.
Cold coffee beverages extracted by cold and hot methods: composition and sensory acceptance by youngers
(Editora UFLA, 2021) Violin, João Leonardo; Acre, Lucas Bonfanti; Francisco, Julyene Silva; Mori, André Luiz Buzzo; Benassi, Marta de Toledo
Brazil is the second largest coffee consumer in the world, however, the participation of the young public in this market is not very expressive. The objective of this study was to evaluate the impact of non-sensory (packaging color, information, and images) and brewing methods (hot or cold extraction) on the acceptance of cold coffee beverages by young consumers. A coffee:water ratio of 1:10 (w:v) and infusion during 4 min and 24 h was used for both hot and cold extractions, respectively. Hot extraction was performed at 95 °C, then cooled in a refrigerator and served at 6 to 10 °C, the same temperature that the cold extraction was performed and served. The beverages were characterized by composition and extraction yield. The packaging of the beverages was designed aiming to appeal to the young Brazilian public (15 to 24 years old), and it was used for the Expectation Evaluation. The type of extraction (hot or cold) produced beverages with differences in composition but with similar acceptance. Except for pH (average value of 5.1), the beverages differed in all the studied parameters. Hot-extracted beverages (iced coffees) had higher contents of caffeine, chlorogenic acids, and melanoidins (92.9, 258.2, and 360.8∙10-6 kg 100 mL-1, respectively); they also presented higher acidity (3.4 mL of NaOH 20 mL-1) as well as higher yield compared to the cold-extracted beverages (cold brews). The use on product labels of brown and black colors, coffee bean images, and the inclusion of information regarding the bever ages (extraction method, consumption temperature, non-addition of sugar) generated a positive expectation that was assimilated by the young public. In conclusion, both proposals of cold coffee beverages (by hot or cold extraction) were well accepted considering their sensory and non-sensory aspects.
Contents of diterpenes in espresso coffee brews prepared from commercial capsules
(Editora UFLA, 2016-04) Wuerges, Karla Leticia; Santos, Ana Carolina Forgati dos; Mori, André Luiz Buzzo; Benassi, Marta de Toledo
The objective of this work was to quantify kahweol and cafestol diterpenes in coffee brews prepared from commercial capsules for espresso in the Brazilian market. Four types of brews, with five preparation replications, were evaluated. The capsules had differences in the amount and type of roasted and ground coffees used (blends of arabica and robusta coffee or 100% arabica coffee), and in the conditions of time and volume of extraction (dose) recommended by the manufacturer. The coffee brews presented 1.42 and 4.88 g of solids/100 mL. Concentration of solids decreased with the increase in time/volume extraction. Contents of 0.47 to 1.04 mg of kahweol and 0.38 to 0.92 mg of cafestol by dose (ranging from 35 to 120 mL) were observed. These contents corresponded to a range of 0.40 to 2.96 mg of kahweol/100 mL and 0.32 to 2.62 mg of cafestol/100 mL. The fraction of diterpenes extracted varied from 1.85 to 4.27 % for kahweol and 1.87 to 4.16 % for cafestol. Considering the contents of cafestol, there is no indication of a hypercholesterolemic effect due to a moderate consumption of coffee brews prepared from these commercial capsules.
Instant coffee with steamed PVA beans: Physical-chemical and sensory aspects
(Editora UFLA, 2019) Reis, Tamiris Aparecida Diniz dos; Conti, Antonio José de; Barrientos, Eliseo Alexander López; Mori, André Luiz Buzzo; Benassi, Marta de Toledo
Around 20% of Brazilian coffee production corresponds to defective beans (PVA), which decreases the quality of the coffee brews. Steam treatment has been reported as an alternative to improve the cup quality of coffee products. This research aimed to study the feasibility of using steamed Robusta PVA beans in instant coffee products. After the steam treatment (2 bar for 3 min), the Robusta PVA was dried, roasted, subjected to extraction in a pilot plant, and freeze-dried. The steamed and untreated Robusta PVA materials (raw, roasted, and instant coffees) and blends of instant Arabica coffee with PVA were characterized. The steamed Robusta PVA instant coffee presented 7.01 g caffeine and 8.74 g total chlorogenic acids in 100 g product. Instant coffee blends with 30% and 50% of steamed Robusta PVA in Arabica coffee were studied. A sensory difference between blends with steamed and untreated Robusta PVA was only perceived by the addition of 50% PVA. The blend with 50% of steamed coffee was preferred and well accepted (average grade of 7.9 on a 10-scale). The use of steamed Robusta PVA coffee (under mild steam treatment conditions, 2 bar/3 min) in instant coffee was viable, and it was obtained an instant coffee to be used in a blend with 50% of Arabica coffee with a good profile of bioactive compounds and sensory acceptance.
Sensory profile of conilon coffee brews from the state of Espírito Santo, Brazil
(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2018-09) Mori, André Luiz Buzzo; Garcia, Aline de Oliveira; Ferrão, Maria Amélia Gava; Fonseca, Aymbiré Francisco Almeida da; Ferrão, Romário Gava; Benassi, Marta de Toledo
The objective of this work was to present a sensory description of conilon coffee (Coffea canephora) brews produced from genotypes developed for the state of Espírito Santo, Brazil. The genotypes 'Diamante ES8112', 'ES8122', and 'Centenária ES8132' were evaluated. Nine samples from three clones (genotypes) of each cultivar, from two different regions of the state, were analyzed. A panel of tasters for coffee sensory evaluation was trained to obtain a descriptive profile and to select terms. Beverages were described as showing a higher intensity of powder fragrance, characteristic aroma of coffee brew, body, characteristic flavor and aftertaste, and a lower intensity of bitterness, acidity, astringency, and defects. The terms bitterness, strong, body, astringency, and coffee aftertaste were the most relevant in the characterization of the beverages of the studied C. canephora cultivars. Acidity is the attribute with the greatest impact on the overall quality of C. canephora brew. The coffee brews of the clones of 'Diamante ES8112', 'ES8122', and 'Centenária ES8132' are classified as of traditional quality, but near the superior category.