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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
16/09/2019 |
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Data da última atualização: |
03/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONTANA, C.; SANTINI-JUNIOR, L.; OLMEDO, G. M.; BOTOSSO, P. C.; TOMAZELLO-FILHO, M.; OLIVEIRA, J. M. |
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Afiliação: |
Cláudia Fontana, Universidade do Vale Rio dos Sinos; Luiz Santini-Junior, ESALQ; Gabriela Morais Olmedo, Universidade do Vale Rio dos Sinos; PAULO CESAR BOTOSSO, CNPF; Mario Tomazello-Filho, ESALQ; Juliano Morales Oliveira, Universidade do Vale Rio dos Sinos. |
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Título: |
Assessment of the dendrochronological potential of Licaria bahiana Kurz, an endemic laurel of lowland Atlantic forests in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Acta Botanica Brasilica, v. 33, n. 3, p. 454-464. July/Sept. 2019. |
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DOI: |
10.1590/0102-33062019abb0028 |
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Idioma: |
Inglês |
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Conteúdo: |
The Atlantic Forest of southeastern Brazil has been considered to have the highest number of tree species per hectare in the world. Assessing the influence of climate on tropical tree species is a priority in the face of ongoing climate change, and for which dendrochronological studies have been important. We address the dendrochronological potential of Licaria bahiana Kurz (Lauraceae), an endemic species of the Atlantic forests. We studied growth ring anatomy of L. bahiana and applied dendrochronological methods to investigate how short-term variation in climate affect its radial growth. Distinct growth rings were observed in all individuals and demarcated by darker tangential fiber zones in latewood. Trees showed high climatic sensitivity (0.48) and growth synchrony (intercorrelation r = 0.69; rbar = 0.38). Radial growth was negatively influenced by high temperatures at the beginning of the current growing season (r = -0.46) and by excessive rainfall at the end of the current growing season (r = -0.29), which are periods that correspond to the phenological reproductive phases of the species. Climate anomalies during this period may alter the tradeoff between growth and reproduction, in favor of the latter. |
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Palavras-Chave: |
Anéis de crescimento; Dendroecologia; Dendroecology; Floresta de Tabuleiro; Licaria bahiana; Tabuleiro forests; Tree rings. |
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Thesagro: |
Anatomia; Lauraceae; Madeira. |
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Thesaurus Nal: |
Climate; Wood anatomy. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/201946/1/2019-P.Botosso-ABB-Assessment.pdf
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Marc: |
LEADER 02239naa a2200337 a 4500
001 2112180
005 2019-10-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/0102-33062019abb0028$2DOI
100 1 $aFONTANA, C.
245 $aAssessment of the dendrochronological potential of Licaria bahiana Kurz, an endemic laurel of lowland Atlantic forests in Brazil.$h[electronic resource]
260 $c2019
520 $aThe Atlantic Forest of southeastern Brazil has been considered to have the highest number of tree species per hectare in the world. Assessing the influence of climate on tropical tree species is a priority in the face of ongoing climate change, and for which dendrochronological studies have been important. We address the dendrochronological potential of Licaria bahiana Kurz (Lauraceae), an endemic species of the Atlantic forests. We studied growth ring anatomy of L. bahiana and applied dendrochronological methods to investigate how short-term variation in climate affect its radial growth. Distinct growth rings were observed in all individuals and demarcated by darker tangential fiber zones in latewood. Trees showed high climatic sensitivity (0.48) and growth synchrony (intercorrelation r = 0.69; rbar = 0.38). Radial growth was negatively influenced by high temperatures at the beginning of the current growing season (r = -0.46) and by excessive rainfall at the end of the current growing season (r = -0.29), which are periods that correspond to the phenological reproductive phases of the species. Climate anomalies during this period may alter the tradeoff between growth and reproduction, in favor of the latter.
650 $aClimate
650 $aWood anatomy
650 $aAnatomia
650 $aLauraceae
650 $aMadeira
653 $aAnéis de crescimento
653 $aDendroecologia
653 $aDendroecology
653 $aFloresta de Tabuleiro
653 $aLicaria bahiana
653 $aTabuleiro forests
653 $aTree rings
700 1 $aSANTINI-JUNIOR, L.
700 1 $aOLMEDO, G. M.
700 1 $aBOTOSSO, P. C.
700 1 $aTOMAZELLO-FILHO, M.
700 1 $aOLIVEIRA, J. M.
773 $tActa Botanica Brasilica$gv. 33, n. 3, p. 454-464. July/Sept. 2019.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
03/01/2023 |
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Data da última atualização: |
03/01/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
DUTRA, M. da C. P.; LIMA, M.; ARAUJO, A. J. de B.; BIASOTO, A. C. T. |
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Afiliação: |
MARIA DA CONCEIÇÃO PRUDÊNCIO DUTRA, UFB; MARCOS LIMA, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano; ANA JÚLIA BRITO DE ARAUJO, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano; ALINE TELLES BIASOTO MARQUES, CNPMA. |
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Título: |
Impact of different types of pectinase enzymes on the nutraceutical quality and shelf life of the grape juice. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS ON BIOACTIVE COMPOUNDS, 2., 2022; INTERNATIONAL WORKSHOP ON BIOACTIVE COMPOUNDS: PERSONAL NUTRITION, AGEING AND FOOD SCIENCE, 3., 2022, Campinas. Proceedings? Campinas: Unicamp, 2022. v. 2, nº 155271. |
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Idioma: |
Português |
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Conteúdo: |
Abstract: Grape juice is one of the most consumed juices, due to its pleasant sensory acceptance related to foxy aroma and flavor, natural sweetness, attractive color and freshness. In addition, the product is source of bioactive compounds, with functional benefit properties to the health, according to studied developed in vitro and in vivo. During the grape juice processing, is known that the addiction of commercial enzymatic preparations based on pectinases, when used during the grapes maceration step, can improved process yield and color intensity, decreased the viscosity of the beverage, and increase the bioactive compounds content and antioxidant activity. There are several commercial enzymatic formulations available for application in the market, consisting mainly of pectinases, cellulases and galactosidases. Given this, the goal of this studied was evaluate the influence of different types of commercial enzyme preparations based on pectinases (CEPP) on the physicochemical characteristics (pH, soluble solids and total acidity), color intensity (CI) and tonality, total phenolic compounds (TPC) and antioxidant activity (AOX) of the grape juice during twelve months of shelf life. Juice analysis were performed at two months of intervals, in the times of 0 days, 60 days, 120 days, 180 days, 240 days, 300 days and 360 days of storage at room temperature of the bottles. Grape juices were produced following the formulation adopted by industries of the Northeast region of Brazil, and a mixture of Isabel Precoce 80% and BRS Cora 20% cultivars was made by mixing the grapes at weighing. All juice samples were obtained by hot extraction process, with maceration time of 60 min(60ºC) and pasteurization at 86°C for 3min, without bagasse pressing. Five CEPPs with distinct composition were tested in triplicate using the intermediate dosage recommend by the manufacturer: Endozym Pectofruit PR, Everzyn Thermo, Endozym Rouge, Pectinex Ultra Color and Pectinex Ultra Pulp. Additionally, a control treatment was elaborated without the addition of CEPP during the grapes mecaration. The juice elaborated with Endozym Pectofruit PR CEPP (Pectinliase, polygalacturonase, pectinmethylesterase and cellulose) promoted higher yield to the process (67%) and increased 15% of the grape in juice yield in comparison to the control. While the juice with Everzyn Thermo CEPP, which the main activity is in function of the hemicelluloses, raised the content of soluble solids (21.4°Brix), CI (29.1), TPC (1920.8 mg L-1) and AOX (7.43 mmolTrolox L-1, 14.73 mmolTrolox L-1 and 26.83 mmol Fe2+ L-1, respectively by the DPPH, ABTS and FRAP assays). After twelve months of storage, all the samples lost acidity and color, while the pH and tonality values increased. Highlighting, the juice with Everzyn Thermo CEPP as the sample that presented more accelerated loss of total acidity (0.83 to 0.71%) and CI (29.1 to 10.1). On the other hand, AOX and TPC remained stables over the twelve months of evaluation of the juice of this treatment. The results obtained demonstrated that the choice of the pectinase enzyme could be decisive for the nutraceutical quality and shelf life of the grape juice, besides the influence in the yield. MenosAbstract: Grape juice is one of the most consumed juices, due to its pleasant sensory acceptance related to foxy aroma and flavor, natural sweetness, attractive color and freshness. In addition, the product is source of bioactive compounds, with functional benefit properties to the health, according to studied developed in vitro and in vivo. During the grape juice processing, is known that the addiction of commercial enzymatic preparations based on pectinases, when used during the grapes maceration step, can improved process yield and color intensity, decreased the viscosity of the beverage, and increase the bioactive compounds content and antioxidant activity. There are several commercial enzymatic formulations available for application in the market, consisting mainly of pectinases, cellulases and galactosidases. Given this, the goal of this studied was evaluate the influence of different types of commercial enzyme preparations based on pectinases (CEPP) on the physicochemical characteristics (pH, soluble solids and total acidity), color intensity (CI) and tonality, total phenolic compounds (TPC) and antioxidant activity (AOX) of the grape juice during twelve months of shelf life. Juice analysis were performed at two months of intervals, in the times of 0 days, 60 days, 120 days, 180 days, 240 days, 300 days and 360 days of storage at room temperature of the bottles. Grape juices were produced following the formulation adopted by industries of the Northeast region of Brazi... Mostrar Tudo |
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Palavras-Chave: |
Commercial enzyme; Pectinase enzymes. |
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Thesagro: |
Enzima. |
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Thesaurus NAL: |
antioxidant activity; bioactive compounds; Grape juice. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150560/1/RA-BiasotoACT-2nd-ICBC-3rd-Intl-Workshop...Food-Science-2022.pdf
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Marc: |
LEADER 04096nam a2200217 a 4500
001 2150560
005 2023-01-03
008 2022 bl uuuu u00u1 u #d
100 1 $aDUTRA, M. da C. P.
245 $aImpact of different types of pectinase enzymes on the nutraceutical quality and shelf life of the grape juice.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS ON BIOACTIVE COMPOUNDS, 2., 2022; INTERNATIONAL WORKSHOP ON BIOACTIVE COMPOUNDS: PERSONAL NUTRITION, AGEING AND FOOD SCIENCE, 3., 2022, Campinas. Proceedings? Campinas: Unicamp, 2022. v. 2, nº 155271.$c2022
520 $aAbstract: Grape juice is one of the most consumed juices, due to its pleasant sensory acceptance related to foxy aroma and flavor, natural sweetness, attractive color and freshness. In addition, the product is source of bioactive compounds, with functional benefit properties to the health, according to studied developed in vitro and in vivo. During the grape juice processing, is known that the addiction of commercial enzymatic preparations based on pectinases, when used during the grapes maceration step, can improved process yield and color intensity, decreased the viscosity of the beverage, and increase the bioactive compounds content and antioxidant activity. There are several commercial enzymatic formulations available for application in the market, consisting mainly of pectinases, cellulases and galactosidases. Given this, the goal of this studied was evaluate the influence of different types of commercial enzyme preparations based on pectinases (CEPP) on the physicochemical characteristics (pH, soluble solids and total acidity), color intensity (CI) and tonality, total phenolic compounds (TPC) and antioxidant activity (AOX) of the grape juice during twelve months of shelf life. Juice analysis were performed at two months of intervals, in the times of 0 days, 60 days, 120 days, 180 days, 240 days, 300 days and 360 days of storage at room temperature of the bottles. Grape juices were produced following the formulation adopted by industries of the Northeast region of Brazil, and a mixture of Isabel Precoce 80% and BRS Cora 20% cultivars was made by mixing the grapes at weighing. All juice samples were obtained by hot extraction process, with maceration time of 60 min(60ºC) and pasteurization at 86°C for 3min, without bagasse pressing. Five CEPPs with distinct composition were tested in triplicate using the intermediate dosage recommend by the manufacturer: Endozym Pectofruit PR, Everzyn Thermo, Endozym Rouge, Pectinex Ultra Color and Pectinex Ultra Pulp. Additionally, a control treatment was elaborated without the addition of CEPP during the grapes mecaration. The juice elaborated with Endozym Pectofruit PR CEPP (Pectinliase, polygalacturonase, pectinmethylesterase and cellulose) promoted higher yield to the process (67%) and increased 15% of the grape in juice yield in comparison to the control. While the juice with Everzyn Thermo CEPP, which the main activity is in function of the hemicelluloses, raised the content of soluble solids (21.4°Brix), CI (29.1), TPC (1920.8 mg L-1) and AOX (7.43 mmolTrolox L-1, 14.73 mmolTrolox L-1 and 26.83 mmol Fe2+ L-1, respectively by the DPPH, ABTS and FRAP assays). After twelve months of storage, all the samples lost acidity and color, while the pH and tonality values increased. Highlighting, the juice with Everzyn Thermo CEPP as the sample that presented more accelerated loss of total acidity (0.83 to 0.71%) and CI (29.1 to 10.1). On the other hand, AOX and TPC remained stables over the twelve months of evaluation of the juice of this treatment. The results obtained demonstrated that the choice of the pectinase enzyme could be decisive for the nutraceutical quality and shelf life of the grape juice, besides the influence in the yield.
650 $aantioxidant activity
650 $abioactive compounds
650 $aGrape juice
650 $aEnzima
653 $aCommercial enzyme
653 $aPectinase enzymes
700 1 $aLIMA, M.
700 1 $aARAUJO, A. J. de B.
700 1 $aBIASOTO, A. C. T.
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