Influência da temperatura de secagem e da concentração de Aerosil®200 nas características dos extratos secos por aspersão da Schinus terebinthifolius Raddi (Anacardiaceae)

Vasconcelos, E. A. F.; Medeiros, Morsinaldo; Raffin, Fernanda Nervo; Moura, T.F.A.L.

doi:10.1590/s0102-695x2005000300015

Cited by 31 publications

(26 citation statements)

References 4 publications

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“…This behavior is in agreement with previous work on plant extract spray-drying with colloidal silicon dioxide [15]. On the other hand, as shown in Table 3, the use of higher feed flow rates (C) gave more moist powders due to higher water loads for evaporation.…”

Section: Moisture Contentsupporting

confidence: 92%

“…In those cases, higher inlet thermal levels led to lower powder moisture contents. Nevertheless, for Schinus terebinthifolius Raddi -plant extract -spray-drying with high concentrations of Aerosil 200 as drying adjuvant, Vasconcelos et al [15] found that the inlet temperature did not affect powder residual moisture content.…”

Section: Moisture Contentmentioning

confidence: 99%

“…Maltodextrin, cashew tree, and Arabic gums and colloidal silicon dioxide, among others, have been used to enhance plant extract spray-drying yields [10][11][12]. In particular, the use of colloidal silicon dioxide allows for production of non-hygroscopic dry plant extract, with good flowability, compressibility, and compactability properties [9,[13][14][15]. Therefore, colloidal silicon dioxide appears as an interesting excipient for the formulation of dry extracts.…”

Section: Introductionmentioning

confidence: 99%

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Influence of spray-drying operating conditions on Rhamnus purshiana (Cáscara sagrada) extract powder physical properties

et al. 2011

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Section: Moisture Contentsupporting

confidence: 92%

Section: Moisture Contentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of spray-drying operating conditions on Rhamnus purshiana (Cáscara sagrada) extract powder physical properties

et al. 2011

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“…; Vasconcelos et al . ). The use of biopolymers has been the focus of a growing number of studies on their potential.…”

Section: Discussionmentioning

confidence: 97%

Piper regnelliiextract biopolymer-based microparticles: production, characterization and antifungal activity

et al. 2017

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Aims: This study aims to improve characteristics of Piper regnellii extract to make it applicable in formulations to treat dermatophytosis, also known as ringworm. Methods and Results: Microparticles (MPs) were produced by spray drying with gelatin, alginate and chitosan as encapsulating agents; characterized by scanning electron microscopy, encapsulation efficiency, thermal analyses and X-ray diffraction; and tested against Trichophyton rubrum by broth microdilution. Produced MPs had a mean diameter less than 2 lm, an increase in stability and release of the extract and good results for encapsulation efficiency, being 85Á6% to gelatin MP, 71Á3% to chitosan MP and 60Á6% to alginate. MPs preserved the antifungal activity of P. regnellii extract T. rubrum. Conclusion: Microencapsulation provided a significant improvement in the stability of the P. regnellii extract and better solubilization of chemical compounds, maintaining the antifungal effect against T. rubrum. Significance and Impact of the Study: These results are useful for developing a formulation to treat fungal infections caused by dermatophyte species.

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“…New technologies to modernize the preparation of traditional herbs as part of pharmaceutical products are being evaluated with the ultimate goal of maximizing the opportunities and overcoming the challenges inherent to herbal medicines (Vasconcelos et al, 2005;Yadav & Dixit, 2008).…”

Section: Dissolution Testsmentioning

confidence: 99%

Dissolution test of herbal medicines containing Passiflora sp.

Costa¹,

Alves²,

Conceição³

et al. 2011

Rev. bras. farmacogn.

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Abstract:The dissolution test is an essential tool to assess the quality of herbal medicines in the solid dosage form for oral use. This work aimed to evaluate the dissolution behavior of three herbal medicines in the form of capsules and tablet containing Passiflora, produced with powder or dried extract. Assay of total flavonoids and dissolution methods were validated and obtained results allowed the quantification of flavonoids with precision, accuracy and selectivity. The percentage of total flavonoids found was 2% for capsule A (containing only powder), 0.97% for capsule B (containing only dried extract) and 5.5% for tablet. Although the content was lower, the release of flavonoids present in the capsule containing dried extract was 12% higher over 30 min, with dissolved percentage values of 87 and 75, for the capsules containing extract and powder, respectively. The tablet containing dried extract presented dissolution of 76%, despite the higher content of flavonoids, which may be due to pharmacotechnical problems. Obtained data demonstrated the need to implement these tests in the quality control of herbal medicines, confirming the release of the active ingredients that underlie the pharmacological action of these medicines.

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Influência da temperatura de secagem e da concentração de Aerosil®200 nas características dos extratos secos por aspersão da Schinus terebinthifolius Raddi (Anacardiaceae)

Abstract: RESUMO:A Schinus terebinthifolius Raddi é muito usada na medicina popular e atualmente como fi tomedicamento pelas propriedades antimicrobiana, cicatrizante e antiinfl amatória. O objetivo deste trabalho foi avaliar a infl uência da temperatura de entrada e a concentração

Cited by 31 publications

References 4 publications

Influence of spray-drying operating conditions on Rhamnus purshiana (Cáscara sagrada) extract powder physical properties

Influence of spray-drying operating conditions on Rhamnus purshiana (Cáscara sagrada) extract powder physical properties

Piper regnelliiextract biopolymer-based microparticles: production, characterization and antifungal activity

Dissolution test of herbal medicines containing Passiflora sp.

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