Chemical composition and free radical scavenging activity of pollen loads from stingless bee Melipona subnitida Ducke

is study was oriented towards encapsulation of S. rebaudiana extract and the study of its release kinetics. e desired encapsulation was achieved by the ionotropic gelation method using sodium alginate and inulin of polymeric constituents. Characterization of the capsules was performed by micrometric properties, encapsulation efficiency, in vitro extract release analysis, and biological activity of released extract. e in vitro release profiles from different capsules were applied on different kinetic models. e prepared capsules were found spherical in shape with diameters ranging from 2.07 to 2.63 mm, having the encapsulation efficiencies of 43.77% and 56.53% for phenolic compounds and steviol glycosides, respectively. e best-fit model with the highest correlation coefficient was observed in the Ritger-Peppas model, indicating diffusion controlled principle. e release exponent n value obtained from the Korsmeyer-Peppas model varied between 0.2273 and 1.1719, confirming that the mechanism of S. rebaudiana extract bioactive compounds release was diffusion controlled.

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“…where A 0 is the absorbance of the control solution and A 1 is the absorbance in the presence of the sample [11].…”

Section: In Vitro Biological Activity Of S Rebaudiana Aqueousmentioning

confidence: 99%

Release Kinetic Studies of Stevia rebaudiana Extract Capsules from Sodium Alginate and Inulin by Ionotropic Gelation

Martínez

Ruiz

Campos

2018

Advances in Materials Science and Engineering

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“…The free radical-scavenging activity was determined using the DPPH assay, as described previously (Silva et al, 2006) with modifications. The antiradical activity was evaluated using a dilution series to obtain five concentrations (1.0 to 80.0 µg/mL).…”

Section: Dpphmentioning

confidence: 99%

Chemical composition, antinociceptive and free radical-scavenging activities of geopropolis from Melipona subnitida Ducke (Hymenoptera: Apidae: Meliponini)

Silva¹,

Souza²,

Dias³

et al. 2014

Sociobiology

Self Cite

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“…Polenlerden elde edilen birçok bileşik üzerinde biyokimyasal ve mikrobiyolojik çalışmalar mevcuttur. Son yıllarda özellikle fenolik bileşiklere odaklanılmıştır (3)(4)(5)(6) …”

Section: Gđrđşunclassified

Türkiye’de doğal olarak yetisen endemik üç Ononıs L. (Fabaceae) türünün polen ve tohum morfolojisi

PINAR¹

2009

Ankara Universitesi Eczacilik Fakultesi Dergisi

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Chemical composition and free radical scavenging activity of pollen loads from stingless bee Melipona subnitida Ducke

Cited by 125 publications

References 30 publications

Release Kinetic Studies of Stevia rebaudiana Extract Capsules from Sodium Alginate and Inulin by Ionotropic Gelation

Release Kinetic Studies of Stevia rebaudiana Extract Capsules from Sodium Alginate and Inulin by Ionotropic Gelation

Chemical composition, antinociceptive and free radical-scavenging activities of geopropolis from Melipona subnitida Ducke (Hymenoptera: Apidae: Meliponini)

Türkiye’de doğal olarak yetisen endemik üç Ononıs L. (Fabaceae) türünün polen ve tohum morfolojisi

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