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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
03/03/2020 |
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Data da última atualização: |
20/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGUIAR, L. A. de; RODRIGUES, D. B.; QUEIROZ, V. A. V.; MELO, L.; PINELI, L. de L. de O. |
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Afiliação: |
Lorena Andrade de Aguiar, Universidade de Brasília; Daniele Bobrowski Rodrigues, Universidade de Brasília; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS; Lauro Melo, Universidade Federal do Rio de Janeiro; Lívia de Lacerda de Oliveira Pineli, Universidade de Brasília. |
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Título: |
Comparison of two rapid descriptive sensory techniques for profiling and screening of drivers of liking of sorghum breads. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Food Research International, v. 131, article 108999, 2020. |
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DOI: |
10.1016/j.foodres.2020.108999 |
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Idioma: |
Inglês |
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Conteúdo: |
Rapid descriptive methods have emerged as a relatively simple alternative for screening the sensory attributes of products that drive their liking, and may contribute to identify sorghum genotypes with potential for development of gluten-free breads with higher consumer acceptance. Two rapid techniques, Check-All-That-Apply (CATA) and Optimized Descriptive Profile (ODP), were herein compared on their ability to describe, discriminate and identify the drivers of liking of sorghum breads. Gluten-free bread formulations were developed using flours from selected sorghum genotypes (CMSS005, BR 501, BRS 332, BRS 330, BRS 305 and 1167048), besides commercial sorghum and rice flours. A semi-trained panel (n = 18) evaluated the samples using the ODP method, whereas consumers (n = 124) completed the CATA questionnaire and rated the liking in a 9-point hedonic scale. A total of 24 and 11 sensory descriptors were perceived by assessors as different among samples for CATA and ODP, respectively, with color and appearance-related attributes critical to discriminate samples in CATA, whereas flavor and texture descriptors had also prominent contribution in ODP. A similar pattern of sample distribution was noticed for both methods, which were shown to be highly and positively correlated (RV = 0.92, p < 0.002). Genotypes influenced the consumer perception of sorghum breads, being the BRS 332 and the CMSS005 breads among the most and the least accepted samples for either consumer segment, respectively. While 10 drivers of liking were identified by CATA, including ?appearance of whole flour breads?, ?uniform alveoli?, ?neutral flavor? and ?soft aroma?, in ODP 'crumb color', 'crust color', 'spots' and traditional bread aroma? drove bread acceptance. In summary, both methods were successfully applied and provided similar pattern of sample discrimination, whereas the attributes used for sample characterization, as well as those identified as drivers of liking were generally different. The ODP offers a simpler option for a quantitative perspective, while CATA remains as an easy method considering qualitative aspects, being clearly faster than ODP. MenosRapid descriptive methods have emerged as a relatively simple alternative for screening the sensory attributes of products that drive their liking, and may contribute to identify sorghum genotypes with potential for development of gluten-free breads with higher consumer acceptance. Two rapid techniques, Check-All-That-Apply (CATA) and Optimized Descriptive Profile (ODP), were herein compared on their ability to describe, discriminate and identify the drivers of liking of sorghum breads. Gluten-free bread formulations were developed using flours from selected sorghum genotypes (CMSS005, BR 501, BRS 332, BRS 330, BRS 305 and 1167048), besides commercial sorghum and rice flours. A semi-trained panel (n = 18) evaluated the samples using the ODP method, whereas consumers (n = 124) completed the CATA questionnaire and rated the liking in a 9-point hedonic scale. A total of 24 and 11 sensory descriptors were perceived by assessors as different among samples for CATA and ODP, respectively, with color and appearance-related attributes critical to discriminate samples in CATA, whereas flavor and texture descriptors had also prominent contribution in ODP. A similar pattern of sample distribution was noticed for both methods, which were shown to be highly and positively correlated (RV = 0.92, p < 0.002). Genotypes influenced the consumer perception of sorghum breads, being the BRS 332 and the CMSS005 breads among the most and the least accepted samples for either consumer segment, respe... Mostrar Tudo |
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Palavras-Chave: |
Gluten-free bread. |
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Thesagro: |
Genótipo; Glúten; Pão; Sorgo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211402/1/Comparison-two.pdf
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Marc: |
LEADER 02901naa a2200241 a 4500
001 2120781
005 2020-04-20
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foodres.2020.108999$2DOI
100 1 $aAGUIAR, L. A. de
245 $aComparison of two rapid descriptive sensory techniques for profiling and screening of drivers of liking of sorghum breads.$h[electronic resource]
260 $c2020
520 $aRapid descriptive methods have emerged as a relatively simple alternative for screening the sensory attributes of products that drive their liking, and may contribute to identify sorghum genotypes with potential for development of gluten-free breads with higher consumer acceptance. Two rapid techniques, Check-All-That-Apply (CATA) and Optimized Descriptive Profile (ODP), were herein compared on their ability to describe, discriminate and identify the drivers of liking of sorghum breads. Gluten-free bread formulations were developed using flours from selected sorghum genotypes (CMSS005, BR 501, BRS 332, BRS 330, BRS 305 and 1167048), besides commercial sorghum and rice flours. A semi-trained panel (n = 18) evaluated the samples using the ODP method, whereas consumers (n = 124) completed the CATA questionnaire and rated the liking in a 9-point hedonic scale. A total of 24 and 11 sensory descriptors were perceived by assessors as different among samples for CATA and ODP, respectively, with color and appearance-related attributes critical to discriminate samples in CATA, whereas flavor and texture descriptors had also prominent contribution in ODP. A similar pattern of sample distribution was noticed for both methods, which were shown to be highly and positively correlated (RV = 0.92, p < 0.002). Genotypes influenced the consumer perception of sorghum breads, being the BRS 332 and the CMSS005 breads among the most and the least accepted samples for either consumer segment, respectively. While 10 drivers of liking were identified by CATA, including ?appearance of whole flour breads?, ?uniform alveoli?, ?neutral flavor? and ?soft aroma?, in ODP 'crumb color', 'crust color', 'spots' and traditional bread aroma? drove bread acceptance. In summary, both methods were successfully applied and provided similar pattern of sample discrimination, whereas the attributes used for sample characterization, as well as those identified as drivers of liking were generally different. The ODP offers a simpler option for a quantitative perspective, while CATA remains as an easy method considering qualitative aspects, being clearly faster than ODP.
650 $aGenótipo
650 $aGlúten
650 $aPão
650 $aSorgo
653 $aGluten-free bread
700 1 $aRODRIGUES, D. B.
700 1 $aQUEIROZ, V. A. V.
700 1 $aMELO, L.
700 1 $aPINELI, L. de L. de O.
773 $tFood Research International$gv. 131, article 108999, 2020.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
24/04/2017 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; MENCUCCINI, M. |
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Afiliação: |
Oliver Binks, University of Edinburgh; Patrick Meir, University of Edinburgh / Australian National University; Lucy Rowland, University of Exeter; Antonio Carlos Lola da Costa, UFPA; STEEL SILVA VASCONCELOS, CPATU; Alex Antonio Ribeiro de Oliveira, UFPA; Leandro Ferreira, MPEG; Maurizio Mencuccini, University of Edinburgh / ICREA at CREAF. |
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Título: |
Limited acclimation in leaf anatomy to experimental drought in tropical rainforest trees. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Tree Physiology, v. 36, n. 12, p. 1550-1561, 2016. |
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DOI: |
10.1093/treephys/tpw078 |
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Idioma: |
Inglês |
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Conteúdo: |
Dry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the palisade mesophyll thickness (P = 0.034) and the cavity volume of the leaves (P = 0.025). The limited response to water deficit probably reflects a tight co-ordination between leaf morphology, water relations and photosynthetic properties. This suggests that there is little plasticity in these aspects of plant anatomy in these taxa, and that phenotypic plasticity in leaf traits may not facilitate the acclimation of Amazonian trees to the predicted future reductions in dry season water availability. MenosDry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the p... Mostrar Tudo |
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Palavras-Chave: |
Estresse hídrico; Fisiologia foliar; Relações hídricas. |
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Thesagro: |
Aclimatação; Floresta Tropical. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02849naa a2200289 a 4500
001 2068879
005 2021-12-22
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1093/treephys/tpw078$2DOI
100 1 $aBINKS, O.
245 $aLimited acclimation in leaf anatomy to experimental drought in tropical rainforest trees.$h[electronic resource]
260 $c2016
520 $aDry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the palisade mesophyll thickness (P = 0.034) and the cavity volume of the leaves (P = 0.025). The limited response to water deficit probably reflects a tight co-ordination between leaf morphology, water relations and photosynthetic properties. This suggests that there is little plasticity in these aspects of plant anatomy in these taxa, and that phenotypic plasticity in leaf traits may not facilitate the acclimation of Amazonian trees to the predicted future reductions in dry season water availability.
650 $aAmazonia
650 $aAclimatação
650 $aFloresta Tropical
653 $aEstresse hídrico
653 $aFisiologia foliar
653 $aRelações hídricas
700 1 $aMEIR, P.
700 1 $aROWLAND, L.
700 1 $aCOSTA, A. C. L. da
700 1 $aVASCONCELOS, S. S.
700 1 $aOLIVEIRA, A. A. R. de
700 1 $aFERREIRA, L.
700 1 $aMENCUCCINI, M.
773 $tTree Physiology$gv. 36, n. 12, p. 1550-1561, 2016.
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Embrapa Amazônia Oriental (CPATU) |
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