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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
19/05/1993 |
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Data da última atualização: |
19/05/1993 |
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Autoria: |
NAVARRO, L. |
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Afiliação: |
Department of Citriculture, INIA, Centro de Levante (CRIDA-07), Moncada, Valencia, Spain. |
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Título: |
Effect of citrus exocortis viriod (CEV) on root and callus formation by stem tissue of etrog citron (Citrus medica L.) cultured in vitro. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Tokyo, Japan: International Society of Citricultural, 1981. |
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Volume: |
v.1 |
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Páginas: |
p.437-439 |
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Idioma: |
Inglês |
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Conteúdo: |
Tissue culture in vitro was used as a new approach to investigate the pathogenesis of the citrus exocortis viriod (CEV). Internode stem pieces of healthy and CEV-infected 'Etrog' citron (Citrus medica L.) were cultured in vitro in an adequate medium to induce root and callus. It was found taht CEV anhibited root and callus formation. The degree of inhibition increased with the age of the infection, and was related to symptom severity on the source plants. Roots were completely suppressed on internodes with severe or very severe CEV symptoms. The amount of callus was also drasticlly reduced. Healthy internodes produced 110 times more callus than internodes from plants showing very severe CEV symptoms. Very mild strains of CEV did not affect the number of internodes producing roots, but siginificantly reduced the number of roots differentiated per culture. Addition of different auxins to the culture medium in concentrations up to 10 and 20 mg/1 did not increase root production by infected internodes. |
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Categoria do assunto: |
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Marc: |
LEADER 01481naa a2200145 a 4500
001 1644014
005 1993-05-19
008 1981 bl uuuu u00u1 u #d
100 1 $aNAVARRO, L.
245 $aEffect of citrus exocortis viriod (CEV) on root and callus formation by stem tissue of etrog citron (Citrus medica L.) cultured in vitro.
260 $c1981
300 $ap.437-439 v.1
490 $vv.1
520 $aTissue culture in vitro was used as a new approach to investigate the pathogenesis of the citrus exocortis viriod (CEV). Internode stem pieces of healthy and CEV-infected 'Etrog' citron (Citrus medica L.) were cultured in vitro in an adequate medium to induce root and callus. It was found taht CEV anhibited root and callus formation. The degree of inhibition increased with the age of the infection, and was related to symptom severity on the source plants. Roots were completely suppressed on internodes with severe or very severe CEV symptoms. The amount of callus was also drasticlly reduced. Healthy internodes produced 110 times more callus than internodes from plants showing very severe CEV symptoms. Very mild strains of CEV did not affect the number of internodes producing roots, but siginificantly reduced the number of roots differentiated per culture. Addition of different auxins to the culture medium in concentrations up to 10 and 20 mg/1 did not increase root production by infected internodes.
773 $tTokyo, Japan: International Society of Citricultural, 1981.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
02/03/2023 |
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Data da última atualização: |
26/10/2023 |
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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: |
SORITA, G. D.; FAVARO, S. P.; AMBROSI, A.; DI LUCCIO, M. |
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Afiliação: |
GUILHERME DALLARMI SORITA, UNIVERSIDADE FEDERAL DE SANTA CATARINA; SIMONE PALMA FAVARO, CNPAE; ALAN AMBROSI, UNIVERSIDADE FEDERAL DE SANTA CATARINA; MARCO DI LUCCIO, UNIVERSIDADE FEDERAL DE SANTA CATARINA. |
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Título: |
Aqueous extraction processing: an innovative and sustainable approach for recovery of unconventional oils. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Trends in Food Science & Technology, v. 133, p. 99-113, Mar. 2023. |
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DOI: |
https://doi.org/10.1016/j.tifs.2023.01.019 |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Unconventional crops (e.g., tiger nut, macaw, babassu, sesame, and others) are promising edible oil sources. However, the traditional oil extraction methods, mechanical pressing, and solvent extraction show low efficiency or use environmentally unfriendly solvents (hexane). Aqueous extraction processing (AEP) has recently emerged as a significant opportunity for achieving the sustainable development goal (SDG) to produce edible oils. This technology usually requires a pre-treatment step, e. g., milling, followed by a demulsification step, which traditionally involves enzyme addition for free oil recovery. Optimizing the demulsification methods can lead to high oil yields (>95%), which is comparable to the use of hexane. Scope and approach: This review discusses the scientific data and trends related to demulsification steps on AEP for oil recovery, focusing on unconventional oil crops. New physical demulsification possibilities, such as filter coalescers and membrane technology, are outlined as alternatives to traditional demulsification methods, which present some drawbacks regarding process scalability and oil quality. Additionally, a complete route, with a biorefinery approach, is suggested for the industrial application of oil and high-added-value compounds from the by-products of AEP (liquid and solid fractions) as an opportunity to update the traditional oil production sector. Key findings and conclusions: With the increased demand for conventional oils for biofuel purposes, exploring unconventional crops is a viable and suitable alternative to obtain food-grade oil. Integrating AEP with physical demulsification methods is an eco-friendly and promising strategy for producing high-quality oil from unconventional and minor crop sources since water is used as the solvent instead of hexane. Moreover, applying biorefinery concepts is an opportunity to stimulate the circular economy and produce valuable compounds (proteins, carbohydrates, fibers, and others) with beneficial health properties and wide application in food industries. MenosBackground: Unconventional crops (e.g., tiger nut, macaw, babassu, sesame, and others) are promising edible oil sources. However, the traditional oil extraction methods, mechanical pressing, and solvent extraction show low efficiency or use environmentally unfriendly solvents (hexane). Aqueous extraction processing (AEP) has recently emerged as a significant opportunity for achieving the sustainable development goal (SDG) to produce edible oils. This technology usually requires a pre-treatment step, e. g., milling, followed by a demulsification step, which traditionally involves enzyme addition for free oil recovery. Optimizing the demulsification methods can lead to high oil yields (>95%), which is comparable to the use of hexane. Scope and approach: This review discusses the scientific data and trends related to demulsification steps on AEP for oil recovery, focusing on unconventional oil crops. New physical demulsification possibilities, such as filter coalescers and membrane technology, are outlined as alternatives to traditional demulsification methods, which present some drawbacks regarding process scalability and oil quality. Additionally, a complete route, with a biorefinery approach, is suggested for the industrial application of oil and high-added-value compounds from the by-products of AEP (liquid and solid fractions) as an opportunity to update the traditional oil production sector. Key findings and conclusions: With the increased demand for conventional oils for... Mostrar Tudo |
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Palavras-Chave: |
Aqueous oil extraction; Biorefinery; Emulsion break; Membrane separation. |
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Thesaurus NAL: |
Air filters; Aqueous solutions; Emulsions. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02874naa a2200253 a 4500
001 2152065
005 2023-10-26
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.tifs.2023.01.019$2DOI
100 1 $aSORITA, G. D.
245 $aAqueous extraction processing$ban innovative and sustainable approach for recovery of unconventional oils.$h[electronic resource]
260 $c2023
520 $aBackground: Unconventional crops (e.g., tiger nut, macaw, babassu, sesame, and others) are promising edible oil sources. However, the traditional oil extraction methods, mechanical pressing, and solvent extraction show low efficiency or use environmentally unfriendly solvents (hexane). Aqueous extraction processing (AEP) has recently emerged as a significant opportunity for achieving the sustainable development goal (SDG) to produce edible oils. This technology usually requires a pre-treatment step, e. g., milling, followed by a demulsification step, which traditionally involves enzyme addition for free oil recovery. Optimizing the demulsification methods can lead to high oil yields (>95%), which is comparable to the use of hexane. Scope and approach: This review discusses the scientific data and trends related to demulsification steps on AEP for oil recovery, focusing on unconventional oil crops. New physical demulsification possibilities, such as filter coalescers and membrane technology, are outlined as alternatives to traditional demulsification methods, which present some drawbacks regarding process scalability and oil quality. Additionally, a complete route, with a biorefinery approach, is suggested for the industrial application of oil and high-added-value compounds from the by-products of AEP (liquid and solid fractions) as an opportunity to update the traditional oil production sector. Key findings and conclusions: With the increased demand for conventional oils for biofuel purposes, exploring unconventional crops is a viable and suitable alternative to obtain food-grade oil. Integrating AEP with physical demulsification methods is an eco-friendly and promising strategy for producing high-quality oil from unconventional and minor crop sources since water is used as the solvent instead of hexane. Moreover, applying biorefinery concepts is an opportunity to stimulate the circular economy and produce valuable compounds (proteins, carbohydrates, fibers, and others) with beneficial health properties and wide application in food industries.
650 $aAir filters
650 $aAqueous solutions
650 $aEmulsions
653 $aAqueous oil extraction
653 $aBiorefinery
653 $aEmulsion break
653 $aMembrane separation
700 1 $aFAVARO, S. P.
700 1 $aAMBROSI, A.
700 1 $aDI LUCCIO, M.
773 $tTrends in Food Science & Technology$gv. 133, p. 99-113, Mar. 2023.
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