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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: |
09/05/2006 |
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Data da última atualização: |
03/06/2024 |
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Autoria: |
SANTIAGO, E. J. A. de. |
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Afiliação: |
EDSON JOSE ARTIAGA DE SANTIAGO, CPATU. |
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Título: |
Análises bioquímicas e protéicas de calos e estudos da divergência genética em pimenta longa (Piper hispidinervium C.DC. - Piperaceae). |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
2001. |
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Páginas: |
31 f. |
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Idioma: |
Português |
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Notas: |
Projeto de Tese (Doutorado em Agronomia) - Universidade Federal de Lavras, Lavras. |
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Conteúdo: |
Através de análises bioquímicas e protéicas de calos tentar-se-á obter a partir de segmentos internodais e foliares da pimenta longa, informações importantes relacionadas a sua propagação in vitro, assim como obter estimativas da divergência genética entre populações naturais usando a análise de RAPD como marcador genético, visando o maior conhecimento agronômico e ecofisiológico desta espécie. |
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Palavras-Chave: |
Análise bioquímica; Análise protéica; Piper hispidinervium; Variabilidade genética. |
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Thesagro: |
Calo; Marcador Molecular; Micropropagação; Pimenta Longa; Planta Aromática. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01201nam a2200241 a 4500
001 1407857
005 2024-06-03
008 2001 bl uuuu m 00u1 u #d
100 1 $aSANTIAGO, E. J. A. de
245 $aAnálises bioquímicas e protéicas de calos e estudos da divergência genética em pimenta longa (Piper hispidinervium C.DC. - Piperaceae).
260 $a2001.$c2001
300 $a31 f.
500 $aProjeto de Tese (Doutorado em Agronomia) - Universidade Federal de Lavras, Lavras.
520 $aAtravés de análises bioquímicas e protéicas de calos tentar-se-á obter a partir de segmentos internodais e foliares da pimenta longa, informações importantes relacionadas a sua propagação in vitro, assim como obter estimativas da divergência genética entre populações naturais usando a análise de RAPD como marcador genético, visando o maior conhecimento agronômico e ecofisiológico desta espécie.
650 $aCalo
650 $aMarcador Molecular
650 $aMicropropagação
650 $aPimenta Longa
650 $aPlanta Aromática
653 $aAnálise bioquímica
653 $aAnálise protéica
653 $aPiper hispidinervium
653 $aVariabilidade genética
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/01/2017 |
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Data da última atualização: |
31/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
MALEGORI, C.; GRASSI, S.; MARQUES, E. J. N.; FREITAS, S. T. de; CASIRAGHI, E. |
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Afiliação: |
CRISTINA MALEGORI, DeFENS Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano, Italy; SILVIA GRASSI, DeFENS Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano, Italy; EMANUEL JOSÉ NASCIMENTO MARQUES, UFPE; SERGIO TONETTO DE FREITAS, CPATSA; ERNESTINA CASIRAGHI, DeFENS Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milano, Italy. |
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Título: |
Vitamin C distribution in acerola fruit by near infrared hyperspectral imaging. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Spectral Imaging, v. 5/6, p. 1-4, dec. 2016. |
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Idioma: |
Francês |
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Conteúdo: |
The study aims at developing a methodology for qualitative mapping of nutraceutical compounds in fruit by near infrared hyperspectral imaging (NIR-HSI), focusing on vitamin C mapping in acerola (Malpighia emarginata D.C.), a Brazilian super-fruit characterised by its high content of ascorbic acid. Despite the fact that the spectral approach has often been applied to agricultural crops, research on acerola is very limited. So far, it is known that ascorbic acid decreases in acerola during ripening, but there is no information about its distribution in the fruit from green to red ripe maturity stages. Towards this aim, hyperspectral images of ten sliced acerola, picked at three maturity stages, were acquired using a SisuChema NIR-HSI system. On the pre-processed images, combined in a omprehensive matrix, principal component analysis was computed to select relevant components for classical least square (CLS) regression. CLS allowed distribution maps of ascorbic acid to be obtained (non-negativity, LOF = 1.9%), using, as reference spectra, acerola juices enriched with 0% and 5% of vitamin C powder. The pixels correlated with 5%-enriched juice showed a reduction from 29% to 6.5% according to colour changes, confirming a vitamin C decrease along the ripening stages. These results demonstrated the reliability of NIR-HSI for the evaluation of vitamin C distribution inside the different acerola areas. The presented approach presents the basis for qualitative mapping of nutraceutical compounds in fruits. MenosThe study aims at developing a methodology for qualitative mapping of nutraceutical compounds in fruit by near infrared hyperspectral imaging (NIR-HSI), focusing on vitamin C mapping in acerola (Malpighia emarginata D.C.), a Brazilian super-fruit characterised by its high content of ascorbic acid. Despite the fact that the spectral approach has often been applied to agricultural crops, research on acerola is very limited. So far, it is known that ascorbic acid decreases in acerola during ripening, but there is no information about its distribution in the fruit from green to red ripe maturity stages. Towards this aim, hyperspectral images of ten sliced acerola, picked at three maturity stages, were acquired using a SisuChema NIR-HSI system. On the pre-processed images, combined in a omprehensive matrix, principal component analysis was computed to select relevant components for classical least square (CLS) regression. CLS allowed distribution maps of ascorbic acid to be obtained (non-negativity, LOF = 1.9%), using, as reference spectra, acerola juices enriched with 0% and 5% of vitamin C powder. The pixels correlated with 5%-enriched juice showed a reduction from 29% to 6.5% according to colour changes, confirming a vitamin C decrease along the ripening stages. These results demonstrated the reliability of NIR-HSI for the evaluation of vitamin C distribution inside the different acerola areas. The presented approach presents the basis for qualitative mapping of nutraceutical ... Mostrar Tudo |
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Palavras-Chave: |
Classical least square; Hiperespectral do infravermelho; Imagem hiperspectral no infravermelho próximo (NIR-HSI); Near infrared hyperspectral imaging; Quadrante mínimo clássico (CLS). |
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Thesagro: |
Acerola; Vitamina C. |
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Thesaurus NAL: |
Malpighia emarginata. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153556/1/Sergio-2016.pdf
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Marc: |
LEADER 02374naa a2200265 a 4500
001 2061202
005 2017-01-31
008 2016 bl uuuu u00u1 u #d
100 1 $aMALEGORI, C.
245 $aVitamin C distribution in acerola fruit by near infrared hyperspectral imaging.$h[electronic resource]
260 $c2016
520 $aThe study aims at developing a methodology for qualitative mapping of nutraceutical compounds in fruit by near infrared hyperspectral imaging (NIR-HSI), focusing on vitamin C mapping in acerola (Malpighia emarginata D.C.), a Brazilian super-fruit characterised by its high content of ascorbic acid. Despite the fact that the spectral approach has often been applied to agricultural crops, research on acerola is very limited. So far, it is known that ascorbic acid decreases in acerola during ripening, but there is no information about its distribution in the fruit from green to red ripe maturity stages. Towards this aim, hyperspectral images of ten sliced acerola, picked at three maturity stages, were acquired using a SisuChema NIR-HSI system. On the pre-processed images, combined in a omprehensive matrix, principal component analysis was computed to select relevant components for classical least square (CLS) regression. CLS allowed distribution maps of ascorbic acid to be obtained (non-negativity, LOF = 1.9%), using, as reference spectra, acerola juices enriched with 0% and 5% of vitamin C powder. The pixels correlated with 5%-enriched juice showed a reduction from 29% to 6.5% according to colour changes, confirming a vitamin C decrease along the ripening stages. These results demonstrated the reliability of NIR-HSI for the evaluation of vitamin C distribution inside the different acerola areas. The presented approach presents the basis for qualitative mapping of nutraceutical compounds in fruits.
650 $aMalpighia emarginata
650 $aAcerola
650 $aVitamina C
653 $aClassical least square
653 $aHiperespectral do infravermelho
653 $aImagem hiperspectral no infravermelho próximo (NIR-HSI)
653 $aNear infrared hyperspectral imaging
653 $aQuadrante mínimo clássico (CLS)
700 1 $aGRASSI, S.
700 1 $aMARQUES, E. J. N.
700 1 $aFREITAS, S. T. de
700 1 $aCASIRAGHI, E.
773 $tJournal of Spectral Imaging$gv. 5/6, p. 1-4, dec. 2016.
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