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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
10/09/2020 |
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Data da última atualização: |
10/09/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HEIDEN, G. |
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Afiliação: |
GUSTAVO HEIDEN, CPACT. |
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Título: |
Nomenclatural novelties in Baccharis subgen. Baccharis (Asteraceae, Astereae). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Phytotaxa, v. 459, n. 1, p. 081-086, 2020. |
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ISSN: |
1179-3163 |
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Idioma: |
Inglês |
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Conteúdo: |
Four new names (Baccharisgaucha for B. axillaris var. dentata; B. neoaustralis for B. papillosa subsp. australis; B. neotruncata for B. truncata,and B. tetroica for B. tricuneata var. procumbens)and 12 new combinations at species rank (B. chaparensis, B. chrysophylla, B. fimbriata, B. integrifolia, B. kessleri, B. longipedicellata, B. minor, B. mornicola, B. pycnocephala, B. vargasii, B. viscosissima, and B. yungensis) are provided totalling 16 nomenclatural novelties for Baccharis subgen. Baccharis. Moreover, a neotype is designated for B. mornicola. Comments on the distribution of these species and their closest congeneric species are provided, as well as morphological characters to differentiate them. |
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Palavras-Chave: |
Asterids; Baccharis chaparensis; Baccharis chrysophylla; Baccharis fimbriata; Baccharis gaucha; Baccharis integrifolia; Baccharis kessleri; Baccharis longipedicellata; Baccharis minor; Baccharis mornicola; Baccharis neoaustralis; Baccharis neotruncata; Baccharis pycnocephala; Baccharis tetroica; Baccharis vargasii; Baccharis viscosissima; Baccharis yungensis. |
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Thesagro: |
Baccharis; Taxonomia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215858/1/Nomenclatural-novelties-in-Baccharis.pdf
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Marc: |
LEADER 01772naa a2200361 a 4500
001 2124838
005 2020-09-10
008 2020 bl uuuu u00u1 u #d
022 $a1179-3163
100 1 $aHEIDEN, G.
245 $aNomenclatural novelties in Baccharis subgen. Baccharis (Asteraceae, Astereae).$h[electronic resource]
260 $c2020
520 $aFour new names (Baccharisgaucha for B. axillaris var. dentata; B. neoaustralis for B. papillosa subsp. australis; B. neotruncata for B. truncata,and B. tetroica for B. tricuneata var. procumbens)and 12 new combinations at species rank (B. chaparensis, B. chrysophylla, B. fimbriata, B. integrifolia, B. kessleri, B. longipedicellata, B. minor, B. mornicola, B. pycnocephala, B. vargasii, B. viscosissima, and B. yungensis) are provided totalling 16 nomenclatural novelties for Baccharis subgen. Baccharis. Moreover, a neotype is designated for B. mornicola. Comments on the distribution of these species and their closest congeneric species are provided, as well as morphological characters to differentiate them.
650 $aBaccharis
650 $aTaxonomia
653 $aAsterids
653 $aBaccharis chaparensis
653 $aBaccharis chrysophylla
653 $aBaccharis fimbriata
653 $aBaccharis gaucha
653 $aBaccharis integrifolia
653 $aBaccharis kessleri
653 $aBaccharis longipedicellata
653 $aBaccharis minor
653 $aBaccharis mornicola
653 $aBaccharis neoaustralis
653 $aBaccharis neotruncata
653 $aBaccharis pycnocephala
653 $aBaccharis tetroica
653 $aBaccharis vargasii
653 $aBaccharis viscosissima
653 $aBaccharis yungensis
773 $tPhytotaxa$gv. 459, n. 1, p. 081-086, 2020.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
12/09/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SIQUEIRA, G. L. de A. de; SILVEIRA, A. C. da; LAZZAROTTO, S. R. da S.; GODOY, R. C. B. de; SCHNITZLER, E.; LAZZAROTTO, M. |
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Afiliação: |
Geisa Liandra de Andrade de Siqueira, Mestranda da UEPG; Ana Claudia da Silveira, UFPR; Simone Rosa da Silveira Lazzarotto, Doutoranda da UEPG; ROSSANA CATIE BUENO DE GODOY, CNPF; Egon Schnitzler, UEPG; MARCELO LAZZAROTTO, CNPF. |
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Título: |
Hydrolysis of the low gelatinization temperature Araucaria angustifolia pine seed starch. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 138, n. 2, p. 1269-1278, Oct. 2019. |
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DOI: |
10.1007/s10973-019-08180-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Starch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has potential use for industrial applications. Further studies are necessary to extend these applications. MenosStarch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has ... Mostrar Tudo |
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Palavras-Chave: |
Amido de pinhão modificado; DSC; Modified pinhão starch; RVA; Starch structural evaluation; TG-DTA. |
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Thesaurus NAL: |
Thermal analysis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02481naa a2200277 a 4500
001 2112143
005 2019-12-10
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1007/s10973-019-08180-1$2DOI
100 1 $aSIQUEIRA, G. L. de A. de
245 $aHydrolysis of the low gelatinization temperature Araucaria angustifolia pine seed starch.$h[electronic resource]
260 $c2019
520 $aStarch is the most abundant carbohydrate found in grains, roots and tubers. Modified starches are employed to overcome most of native starch limitations in industrial applications. Pinhão is the seed of Araucaria angustifolia and starch is approximately 36% of its composition. Acid hydrolysis changes the starch physicochemical properties without impairing the granular structure. The native and hydrochloric acid- modified (0.1 and 0.5 mol L−1) pinhão starches were investigated using thermal (TG-DTA and DSC), rheological (RVA), structural (XRD and SEM) and statistical analysis (ANOVA and Tukey). The aim of this study was to evaluate the effects of acid modification of pinhão starches in aqueous solutions. The starches were chosen because of their low gelatinization temperature (below 60 °C). TG-DTA results in air atmosphere showed that treated samples presented higher thermal stability. The same analysis using nitrogen atmosphere showed similarities between the samples. DSC results indicate that highest acid concentrations promoted crystallinity reduction and losses in the internal structure of the granule. The genetic sources demonstrated different behaviors. The viscosity parameters decreased with the intensity of acid treatment. The XRD identified the type C pattern for the starches and the relative crystallinity increased according to the intensity of the acid hydrolysis. Superficial changes in the granules were observed by SEM. Therefore, modified pinhão starch has potential use for industrial applications. Further studies are necessary to extend these applications.
650 $aThermal analysis
653 $aAmido de pinhão modificado
653 $aDSC
653 $aModified pinhão starch
653 $aRVA
653 $aStarch structural evaluation
653 $aTG-DTA
700 1 $aSILVEIRA, A. C. da
700 1 $aLAZZAROTTO, S. R. da S.
700 1 $aGODOY, R. C. B. de
700 1 $aSCHNITZLER, E.
700 1 $aLAZZAROTTO, M.
773 $tJournal of Thermal Analysis and Calorimetry$gv. 138, n. 2, p. 1269-1278, Oct. 2019.
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