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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
18/12/2009 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HOHNWALD, S.; RISCHKOWSKY, B.; CAMARAO, A. P.; SCHULTZE-KRAFT, R.; RODRIGUES FILHO, J. A.; KING, J. M. |
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Afiliação: |
S. HOHNWALD, Georg-August University of Göttingen; B. RISCHKOWSKY, Georg-August University of Göttingen; ARI PINHEIRO CAMARAO, CPATU; R. SCHULTZE-KRAFT, University of Hohenheim; JOSE ADERITO RODRIGUES FILHO, CPATU; J. M. KING, Georg-August University of Göttingen. |
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Título: |
Integrating cattle into the slash-and-burn cycle on smallholdings in the Eastern Amazon, using grass-capoeira or grass-legume pastures. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 117, n. 4, p. 266-276, Dec. 2006. |
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DOI: |
doi:10.1016/j.agee.2006.04.014 |
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Idioma: |
Inglês |
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Conteúdo: |
In the humid tropics of northern Brazil, where slash-and-burn cropping is the prevailing smallholder land use system, pastures ecologically degrade after 7?10 years of use, mostly due to invading vegetation, decline of soil fertility (N, P) and insect pests. Degraded pasture areas cannot be easily restored or returned to cropping, so large areas are abandoned. To avoid this degradation process, two alternative pastures were tested to incorporate cattle into the slash-and-burn cropping cycle. It was thought that the inclusion of secondary woody fallow vegetation, locally called capoeira, or of legumes in pastures restores the soil for a subsequent cropping phase while allowing an acceptable level of animal performance. This hypothesis was tested in a researcher-managed on-farm experiment in Igarapé-Açu (Bragantina region, Pará). A grass-legume pasture (GLP), combining the grass Brachiaria humidicola with three multi-purpose legumes, was compared with a pasture, where controlled regrowth of capoeira was tolerated (GCP), and tested against two controls in the form of a conventional B. humidicola pasture (GP) and undisturbed regrowth of capoeira (UC). The pastures were grazed in a rotational system for 2 years at 1.5 livestock units (LU) ha1 in the first year and at 1.2 LU ha1 in the following year. The results showed that the GCP kept the full regenerative potential of the capoeira, showing no significant loss of phytodiversity (GCP 67 species 100 m2; UC 72 species 100 m2) and an low dissimilarity in species composition measured by Euclidian distance (UC/GCP = 51; UC/UC = 52; GCP/GCP = 33). On the GLP, the legumes Arachis pintoi and Cratylia argentea almost disappeared due to the grazing pressure, while Chamaecrista rotundifolia var. grandiflora was little palatable and invaded the plots by seed propagation. None of the legumes produced a meaningful quantity of nodules, and no difference in total soil N was found between GLP and the other pasture treatments.With regard to animal production, both alternative pastures were less productive than GP over 21 months of grazing (GLP = 384 kg liveweight ha1, GCP = 474 kg ha1, GP = 659 kg ha1), which was attributed to overstocking in the second year. GCP was considered to be an interesting option for smallholdings, provided the balance between the vigorous regrowth of capoeira and forage grass cover can be maintained. In contrast, on GLP a more palatable Ch. rotundifolia accession would be desirable and the establishment of all legumes needs to be improved. It was concluded that GCP would support a subsequent cropping phase better than GLP. However, on both pastures stocking rates would have to be frequently adjusted a management practice that is of secondary consideration in a crop/livestock system in which cattle are kept as cash-generating assets. MenosIn the humid tropics of northern Brazil, where slash-and-burn cropping is the prevailing smallholder land use system, pastures ecologically degrade after 7?10 years of use, mostly due to invading vegetation, decline of soil fertility (N, P) and insect pests. Degraded pasture areas cannot be easily restored or returned to cropping, so large areas are abandoned. To avoid this degradation process, two alternative pastures were tested to incorporate cattle into the slash-and-burn cropping cycle. It was thought that the inclusion of secondary woody fallow vegetation, locally called capoeira, or of legumes in pastures restores the soil for a subsequent cropping phase while allowing an acceptable level of animal performance. This hypothesis was tested in a researcher-managed on-farm experiment in Igarapé-Açu (Bragantina region, Pará). A grass-legume pasture (GLP), combining the grass Brachiaria humidicola with three multi-purpose legumes, was compared with a pasture, where controlled regrowth of capoeira was tolerated (GCP), and tested against two controls in the form of a conventional B. humidicola pasture (GP) and undisturbed regrowth of capoeira (UC). The pastures were grazed in a rotational system for 2 years at 1.5 livestock units (LU) ha1 in the first year and at 1.2 LU ha1 in the following year. The results showed that the GCP kept the full regenerative potential of the capoeira, showing no significant loss of phytodiversity (GCP 67 species 100 m2; UC 72 species 100 m2) and ... Mostrar Tudo |
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Palavras-Chave: |
Sistema agrosilvipastoril. |
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Thesagro: |
Vegetação Secundária. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03598naa a2200217 a 4500
001 1578439
005 2022-06-08
008 2006 bl uuuu u00u1 u #d
024 7 $adoi:10.1016/j.agee.2006.04.014$2DOI
100 1 $aHOHNWALD, S.
245 $aIntegrating cattle into the slash-and-burn cycle on smallholdings in the Eastern Amazon, using grass-capoeira or grass-legume pastures.$h[electronic resource]
260 $c2006
520 $aIn the humid tropics of northern Brazil, where slash-and-burn cropping is the prevailing smallholder land use system, pastures ecologically degrade after 7?10 years of use, mostly due to invading vegetation, decline of soil fertility (N, P) and insect pests. Degraded pasture areas cannot be easily restored or returned to cropping, so large areas are abandoned. To avoid this degradation process, two alternative pastures were tested to incorporate cattle into the slash-and-burn cropping cycle. It was thought that the inclusion of secondary woody fallow vegetation, locally called capoeira, or of legumes in pastures restores the soil for a subsequent cropping phase while allowing an acceptable level of animal performance. This hypothesis was tested in a researcher-managed on-farm experiment in Igarapé-Açu (Bragantina region, Pará). A grass-legume pasture (GLP), combining the grass Brachiaria humidicola with three multi-purpose legumes, was compared with a pasture, where controlled regrowth of capoeira was tolerated (GCP), and tested against two controls in the form of a conventional B. humidicola pasture (GP) and undisturbed regrowth of capoeira (UC). The pastures were grazed in a rotational system for 2 years at 1.5 livestock units (LU) ha1 in the first year and at 1.2 LU ha1 in the following year. The results showed that the GCP kept the full regenerative potential of the capoeira, showing no significant loss of phytodiversity (GCP 67 species 100 m2; UC 72 species 100 m2) and an low dissimilarity in species composition measured by Euclidian distance (UC/GCP = 51; UC/UC = 52; GCP/GCP = 33). On the GLP, the legumes Arachis pintoi and Cratylia argentea almost disappeared due to the grazing pressure, while Chamaecrista rotundifolia var. grandiflora was little palatable and invaded the plots by seed propagation. None of the legumes produced a meaningful quantity of nodules, and no difference in total soil N was found between GLP and the other pasture treatments.With regard to animal production, both alternative pastures were less productive than GP over 21 months of grazing (GLP = 384 kg liveweight ha1, GCP = 474 kg ha1, GP = 659 kg ha1), which was attributed to overstocking in the second year. GCP was considered to be an interesting option for smallholdings, provided the balance between the vigorous regrowth of capoeira and forage grass cover can be maintained. In contrast, on GLP a more palatable Ch. rotundifolia accession would be desirable and the establishment of all legumes needs to be improved. It was concluded that GCP would support a subsequent cropping phase better than GLP. However, on both pastures stocking rates would have to be frequently adjusted a management practice that is of secondary consideration in a crop/livestock system in which cattle are kept as cash-generating assets.
650 $aVegetação Secundária
653 $aSistema agrosilvipastoril
700 1 $aRISCHKOWSKY, B.
700 1 $aCAMARAO, A. P.
700 1 $aSCHULTZE-KRAFT, R.
700 1 $aRODRIGUES FILHO, J. A.
700 1 $aKING, J. M.
773 $tAgriculture, Ecosystems and Environment$gv. 117, n. 4, p. 266-276, Dec. 2006.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Semiárido. |
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Data corrente: |
09/03/2017 |
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Data da última atualização: |
23/05/2022 |
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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: |
SILVA, J. K. da; BATISTA, A. G.; CAZARIN, C. B. B.; DIONISIO, A. P.; BRITO, E. S. de; BIASOTO, A. C. T.; MARÓSTICA JUNIOR, M. R. |
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Afiliação: |
JULIANA KELLY DA SILVA, UNICAMP; ANGELA GIOVANA BATISTA, UNICAMP; CINTHIA BAÚ BETIM CAZARIN, UNICAMP; ANA PAULA DIONISIO, CNPAT; EDY SOUSA DE BRITO, CNPAT; ALINE TELLES BIASOTO MARQUES, CPATSA; MÁRIO ROBERTO MARÓSTICA JUNIOR, UNICAMP. |
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Título: |
Functional tea from a Brazilian berry: overview of the bioactives compounds. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
LWT - Food Science and Technology, v. 76, p. 292-298, 2017. |
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ISSN: |
0023-6438 |
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DOI: |
10.1016/j.lwt.2016.06.016 |
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Idioma: |
Inglês |
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Conteúdo: |
The consumption of berries has become a trend with confirmed health properties; however, fruit peels have been wasted despite their high concentrations of bioactive compounds. Tea made from jaboticaba (Myrciaria jaboticaba) peel (JP) could be an alternative to make use of this byproduct and contribute to increased intake of polyphenols. For this reason, this study investigated the JP chemical omposition and bioactive profile, as well as the antioxidant capacity of its aqueous extract (JPT e 25 g L1). The peel corresponded to approximately 35% of fruit weight. Total fiber content was approximately 30 g 100 g1, and the soluble portion represented 8.50 ± 0.21 g 100 g1. JPT showed strong antioxidant capacity according to all methods tested (FRAP, DPPH, and ORAC). Phenolic, flavonoid, and anthocyanin content were 54.55 mg GAE, 8.33 mg catechin, and 4.34 mg cyanidin 3-glucoside in 100 mL, respectively. Phenolic content in a cup of JPT (250 mL) was approximately 150 mg GAE, which could be considered an important source of bioactives. Cyanidin-3-O-glucoside, delphinidin-3-O-glucoside, and ellagic acid were identified in JPT by LC-DAD-ESI/MS. Other polyphenols were investigated by PLC-DAD-FLD in the hydrolyzed extract, and gallic acid and rutin were the prevalent compounds after cyanidin-3-O-glucoside. The hydrolysis increased total phenolic, but not affected the antioxidant capacity according to DPPH e FRAP. The JPT color, anthocyanins and antioxidant capacity showed stability in refrigerated conditions, even without additives, for up to three days. These findings suggest that aqueous extract could be an adequate way to utilize the functional properties of jaboticaba peel. MenosThe consumption of berries has become a trend with confirmed health properties; however, fruit peels have been wasted despite their high concentrations of bioactive compounds. Tea made from jaboticaba (Myrciaria jaboticaba) peel (JP) could be an alternative to make use of this byproduct and contribute to increased intake of polyphenols. For this reason, this study investigated the JP chemical omposition and bioactive profile, as well as the antioxidant capacity of its aqueous extract (JPT e 25 g L1). The peel corresponded to approximately 35% of fruit weight. Total fiber content was approximately 30 g 100 g1, and the soluble portion represented 8.50 ± 0.21 g 100 g1. JPT showed strong antioxidant capacity according to all methods tested (FRAP, DPPH, and ORAC). Phenolic, flavonoid, and anthocyanin content were 54.55 mg GAE, 8.33 mg catechin, and 4.34 mg cyanidin 3-glucoside in 100 mL, respectively. Phenolic content in a cup of JPT (250 mL) was approximately 150 mg GAE, which could be considered an important source of bioactives. Cyanidin-3-O-glucoside, delphinidin-3-O-glucoside, and ellagic acid were identified in JPT by LC-DAD-ESI/MS. Other polyphenols were investigated by PLC-DAD-FLD in the hydrolyzed extract, and gallic acid and rutin were the prevalent compounds after cyanidin-3-O-glucoside. The hydrolysis increased total phenolic, but not affected the antioxidant capacity according to DPPH e FRAP. The JPT color, anthocyanins and antioxidant capacity showed stability in re... Mostrar Tudo |
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Palavras-Chave: |
Baga brasileira; Beverage; Byproduct; Chá funcional; Compostos fenólicos; Jaboticaba. |
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Thesagro: |
Bebida; Chá; Myrtaceae; Subproduto. |
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Thesaurus NAL: |
Beverages; Byproducts; phenolic compounds; tea. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157425/1/Aline-1-2017.pdf
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Marc: |
LEADER 02738naa a2200385 a 4500
001 2066596
005 2022-05-23
008 2017 bl uuuu u00u1 u #d
022 $a0023-6438
024 7 $a10.1016/j.lwt.2016.06.016$2DOI
100 1 $aSILVA, J. K. da
245 $aFunctional tea from a Brazilian berry$boverview of the bioactives compounds.$h[electronic resource]
260 $c2017
520 $aThe consumption of berries has become a trend with confirmed health properties; however, fruit peels have been wasted despite their high concentrations of bioactive compounds. Tea made from jaboticaba (Myrciaria jaboticaba) peel (JP) could be an alternative to make use of this byproduct and contribute to increased intake of polyphenols. For this reason, this study investigated the JP chemical omposition and bioactive profile, as well as the antioxidant capacity of its aqueous extract (JPT e 25 g L1). The peel corresponded to approximately 35% of fruit weight. Total fiber content was approximately 30 g 100 g1, and the soluble portion represented 8.50 ± 0.21 g 100 g1. JPT showed strong antioxidant capacity according to all methods tested (FRAP, DPPH, and ORAC). Phenolic, flavonoid, and anthocyanin content were 54.55 mg GAE, 8.33 mg catechin, and 4.34 mg cyanidin 3-glucoside in 100 mL, respectively. Phenolic content in a cup of JPT (250 mL) was approximately 150 mg GAE, which could be considered an important source of bioactives. Cyanidin-3-O-glucoside, delphinidin-3-O-glucoside, and ellagic acid were identified in JPT by LC-DAD-ESI/MS. Other polyphenols were investigated by PLC-DAD-FLD in the hydrolyzed extract, and gallic acid and rutin were the prevalent compounds after cyanidin-3-O-glucoside. The hydrolysis increased total phenolic, but not affected the antioxidant capacity according to DPPH e FRAP. The JPT color, anthocyanins and antioxidant capacity showed stability in refrigerated conditions, even without additives, for up to three days. These findings suggest that aqueous extract could be an adequate way to utilize the functional properties of jaboticaba peel.
650 $aBeverages
650 $aByproducts
650 $aphenolic compounds
650 $atea
650 $aBebida
650 $aChá
650 $aMyrtaceae
650 $aSubproduto
653 $aBaga brasileira
653 $aBeverage
653 $aByproduct
653 $aChá funcional
653 $aCompostos fenólicos
653 $aJaboticaba
700 1 $aBATISTA, A. G.
700 1 $aCAZARIN, C. B. B.
700 1 $aDIONISIO, A. P.
700 1 $aBRITO, E. S. de
700 1 $aBIASOTO, A. C. T.
700 1 $aMARÓSTICA JUNIOR, M. R.
773 $tLWT - Food Science and Technology$gv. 76, p. 292-298, 2017.
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Embrapa Semiárido (CPATSA) |
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