produção e composição química da macela em função da época de colheita production and chemical composition of macela as a result of the harvesting dates
Clicks: 219
ID: 157564
2008
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Steady Performance
30.0
/100
219 views
34 readers
AI Quality Assessment
Not analyzed
Readership in this journal
SteadyRanked #49 of 74 articles by views in research on biomedical engineering
Most read
Least read
Bar heights use a square-root scale.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
A macela é uma planta medicinal com efeitos antidispépticos, antidiarréicos e hepatoprotetores. Sua colheita deve conciliar a máxima produção de biomassa com o(s) maior(es) teor(es) de princípio(s) ativo(s). Neste trabalho, avaliou-se a influência da época de colheita nos componentes de produção e composição química, quantitativa e qualitativa da macela. Os tratamentos consistiram de sete colheitas (75; 85; 95; 105; 115; 125 e 135 dias após o transplantio (DAT)), dispostas em blocos ao acaso, com quatro repetições e parcelas com duas plantas na área útil (1,0 x 0,5 m). A época de colheita influenciou os componentes de produção e o teor dos princípios ativos da macela. Constatou-se acúmulo crescente de biomassa, mais expressivo no caule e folhas do que nas raízes, no decurso das colheitas. A produção de capítulos nas três últimas colheitas (2,6; 3,4 e 6,7 t ha-1) foi superior às demais. Os índices de colheita (relação entre a massa seca dos capítulos e a massa seca da parte aérea) nessas mesmas colheitas foram 47, 46 e 48%. A parte aérea (caule e folhas) e os capítulos apresentaram maior rendimento dos extratos etanólico (REE) e clorofórmico (REC) do que as raízes. REE e REC variaram no transcurso da fase reprodutiva da planta, com picos 105 DAT (raízes: 0,17 g planta-1 para REC), 125 DAT (capítulos: 3,92 e 18,02 g planta-1 para respectivamente REE e REC; raízes: 0,34 g planta-1 para REE) e 135 DAT (parte aérea: 3,02 e 11,70 g planta-1 para respectivamente REE e REC). O rendimento do óleo essencial apresentou valor máximo 135 DAT (44,4 L ha-1). Os teores de acetato de trans-pinocarveíla nos capítulos situaram-se no intervalo de 52,3 a 73,5%, entre as colheitas realizadas de 75 a 95 DAT, estabilizando-se em torno de 53,3% nas colheitas seguintes. O teor de acetato de mirtenila nos capítulos manteve-se estável ao longo das colheitas (6,98±0,56%). A variação do teor de beta-pineno nos capítulos apresentou dois patamares: 31,8±1,72% (de 85 a 105 DAT) e 49,2±1,15% (115 a 135 DAT).
Macela (Egletes viscosa (L.) Less.) is a medicinal herb that possesses antidyspeptic, antidiarrheic, and hepatic protecting properties. Its harvest should allow assembling large biomass production and high yield of active principles. The main goal of this work was to evaluate the influence of harvesting dates over both biomass components and qualitative and quantitative chemical composition of macela. Treatments corresponded to seven harvesting dates (75; 85; 95; 105; 115; 125 and 135 days after the transplant (DAT)), displayed in a randomized blocks design, with four replications, and two useful-plant plots (1.0 x 0.5 m). Harvesting dates affected both yield components and the content of active principles in macela. Biomass production showed a mounting increase during harvests, especially in stem and leaves. Capitulum production in the last three harvests (2.6; 3.4; and 6.7 t ha-1) surpassed the previous ones. The harvesting indexes (ratio between capitulum and aboveground dry mass) to the same periods were 47, 46 and 48%, respectively. Aboveground (stem and leaves) and capitulum had a higher yield of both ethanolic (YEE) and chloroformic (YCE) extracts than roots. YEE and YEC varied throughout plant reproductive phase, with peaks at 105 DAT (roots: 0.17 g plant-1 for YEC); 125 DAT (flower buds: 3.92 and 18.02 g plant-1 for respectively YEE and YEC; roots: 0.34 g plant-1 for YEE), and 135 DAT (aboveground part: 3.02 and 11.70 g plant-1 respectively for YEE and YEC). The yield of essential oil reached the maximum value at 135 DAT (44.4 L ha-1). The content of trans-pinocarveyl acetate in the capitulum ranged from 52.3 to 73.5% in harvests from 75 to 95 DAT, remaining constant around 53.3% after that. The content of mirtenila acetate remained stable throughout harvests (6,98±0,56%). The content of â-pineno in capitulum fluctuated in two steps: 31.8±1.72% (from 85 to 105 DAT), and 49.2±1.15% (from 115 to 135 DAT).
Macela (Egletes viscosa (L.) Less.) is a medicinal herb that possesses antidyspeptic, antidiarrheic, and hepatic protecting properties. Its harvest should allow assembling large biomass production and high yield of active principles. The main goal of this work was to evaluate the influence of harvesting dates over both biomass components and qualitative and quantitative chemical composition of macela. Treatments corresponded to seven harvesting dates (75; 85; 95; 105; 115; 125 and 135 days after the transplant (DAT)), displayed in a randomized blocks design, with four replications, and two useful-plant plots (1.0 x 0.5 m). Harvesting dates affected both yield components and the content of active principles in macela. Biomass production showed a mounting increase during harvests, especially in stem and leaves. Capitulum production in the last three harvests (2.6; 3.4; and 6.7 t ha-1) surpassed the previous ones. The harvesting indexes (ratio between capitulum and aboveground dry mass) to the same periods were 47, 46 and 48%, respectively. Aboveground (stem and leaves) and capitulum had a higher yield of both ethanolic (YEE) and chloroformic (YCE) extracts than roots. YEE and YEC varied throughout plant reproductive phase, with peaks at 105 DAT (roots: 0.17 g plant-1 for YEC); 125 DAT (flower buds: 3.92 and 18.02 g plant-1 for respectively YEE and YEC; roots: 0.34 g plant-1 for YEE), and 135 DAT (aboveground part: 3.02 and 11.70 g plant-1 respectively for YEE and YEC). The yield of essential oil reached the maximum value at 135 DAT (44.4 L ha-1). The content of trans-pinocarveyl acetate in the capitulum ranged from 52.3 to 73.5% in harvests from 75 to 95 DAT, remaining constant around 53.3% after that. The content of mirtenila acetate remained stable throughout harvests (6,98±0,56%). The content of â-pineno in capitulum fluctuated in two steps: 31.8±1.72% (from 85 to 105 DAT), and 49.2±1.15% (from 115 to 135 DAT).
| Reference Key |
bezerra2008horticulturaproduo
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;Antonio Marcos Esmeraldo Bezerra;Sebastião Medeiros Filho;Lincoln Davi M de Oliveira;Edilberto R Silveira |
| Journal | research on biomedical engineering |
| Year | 2008 |
| DOI |
10.1590/S0102-05362008000100005
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
ZincirX productsfrom the team behind Journament
-
PatentYazar
Patent drafts for the EPO, USPTO and TürkPatent
From inventor notes to a DOCX draft: description, claims, abstract. The machine drafts, the attorney signs.
See how it works (opens in a new tab) -
Projenator
Have a project idea? Score and plan it with AI
AI scores your idea in five dimensions and builds a phased plan. Your first project is free, no card needed.
Start your first project (opens in a new tab)
Cookies
We use strictly necessary cookies to run the site and keep you signed in. With your permission we would also use Google Analytics to see how the site is used, and Google AdSense to show ads on journal and article pages. Both stay off unless you accept, and you can change your mind at any time. How we use cookies · KVKK notice (Türkiye)
Cookie settings
Your session, form security (XSRF) and this choice; if you came through a member's referral link, its code for 30 days (referral_token). Journament's own cookies only.
Google Analytics 4 (Google LLC, USA): measures which pages are visited; the _ga and _ga_* cookies are kept for up to 2 years.
Google AdSense (Google LLC, USA): shows, measures and may personalise ads on journal, article and home pages; the __gads, __gpi and __eoi cookies are kept for up to 13 months.
Comments
No comments yet. Be the first to comment on this article.