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Encapsulation of lycopene using spray-drying and molecular inclusion processes 52
Nunes,Itaciara Larroza; Mercadante,Adriana Zerlotti.
This study aimed to obtain encapsulated lycopene in a powder form, using either spray-drying or molecular inclusion with beta -cyclodextrin ( beta -CD) followed by freeze-drying. The encapsulation efficiency using spray-drying ranged from 94 to 96%, with an average yield of 51%, with microcapsules showing superficial indentations and lack of cracks and breakages. Lycopene- beta -CD complexes were only formed at a molar ratio of 1:4, and irregular structures of different sizes that eventually formed aggregates, similar to those of beta -CD, were observed after freeze-drying. About 50% of the initial lycopene did not form complexes with beta -CD. Lycopene purity increased from 96.4 to 98.1% after spray-drying, whereas lycopene purity decreased from 97.7 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lycopene; Encapsulation; Spray-drying; Gum arabic; Inclusion complex; Beta -cyclodextrin.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000500018
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Validation of a UV-spectrophotometric analytical method for determination of LPSF/AC04 from inclusion complex and liposomes 60
Ferraz,Rafaela Siqueira; Mendonça,Elisângela Afonso Moura; Silva,Jéssica Priscila Avelino; Cavalcanti,Isabella Macário Ferro; Lira-Nogueira,Mariane Cajubá Britto; Galdino,Suely Lins; Pitta,Ivan Rocha; Lima,Maria do Carmo Alves; Santos-Magalhães,Nereide Stela.
The aim of this study was to develop and validate a UV spectrophotometric method for determination of LPSF/AC04 from inclusion complex and encapsulated into liposomes. The validation parameters were determined according to the International Conference on Harmonisation (ICH) and National Health Surveillance Agency (ANVISA) guidelines. LPSF/AC04 was determined at 250 nm in methanol by a UV spectrophotometric method, exhibiting linearity in the range from 0.3 to 2 µg.mL−1 (Absorbance=0.18068 x [LPSF/AC04 µg.mL-1] + 0.00348), (r2=0.9995). The limits of detection and quantification were 0.047µg.mL−1 and 0.143µg.mL−1, respectively. The method was accurate, precise, reproducible and robust since all the samples analyzed had coefficient of variation of less than...
Tipo: Info:eu-repo/semantics/article Palavras-chave: UV Spectrophotometry/quantitative analysis/method validation; Acridine derivatives/determination; Inclusion complex; Liposomes.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000100183
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