Glass transition temperature of trehalose
WebJul 24, 2024 · Glass transition temperatures were evident in samples freeze-dried with trehalose or trehalose/albumin with T g values of 19 ± 6 °C and 97 ± 8 °C, respectively. Table 1 Sample moisture... WebThe glass transition temperature (T g ), enthalpic relaxation behavior, and crystallization were studied by differential scanning calorimetry, whereas X-ray diffractometry was used for phase identification. The rate and extent of water uptake at different relative humidity values were also obtained. Results.
Glass transition temperature of trehalose
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WebNotably, the glass transition temperature for trehalose is significantly higher than other disaccharides such as sucrose, with a difference of ∼50° C in T g between the two. (26) Several molecular mechanisms have been proposed to explain the extraordinary … WebSep 2, 2010 · Trehalose is a naturally occurring disaccharide consisting of two α-glucose units. Due to its exceptional physical and chemical stability, trehalose is a popular lyoprotectant. In contrast to other disaccharides, amorphous trehalose is characterized by a high glass transition temperature (~117°C) (14,15).
WebOct 28, 1999 · The glass transition temperature (Tg) and viscosity of aqueous trehalose and its mixtures with either NaCl or Na2B4O7 (borax) have been measured over a wide … WebJan 1, 1994 · The lower Fw of the BaAFP-1 dough also confirmed the speculation that the higher Capp of the post-frozen BaAFP-1 dough may be caused by its higher unfreezable water content. The glass transition temperature is the point at which the maximally freeze-concentrated matrix was formed (Reid, Kerr, & Hsu, 1994). Tg″ plays a decisive role in …
WebDec 1, 1999 · Glass transition temperatures (Tg) for sucrose, trehalose, and water have been determined by numerous studies in the past. Literature values appear to be fairly scattered and compromise the … Expand
WebJan 1, 2024 · The glass transition temperature is lower in Lys + Sucr (25°C) than in Lys + Treh (30°C) sample, as we would expect considering the lower T g of sucrose (T g = 75°C) relatively to T g of trehalose (118°C). 42, 43, 44 The difference between T g of Lys + Sucr and Lys + Treh matrixes, however, is very low (5°C) regarding the difference ...
WebSep 12, 2024 · At the glass transition temperature, the physical nature of the material changes subtly. It goes from being a rubbery, flexible material at higher temperature, above the glass transition, to a glassy, harder material at a lower temperature. The material is still a solid either way, but there is a definite change in how it responds to stimuli. kano 1931海の向こうの甲子園 動画WebTable 1. Mixture compositions for glass transition studies. Composition of Desiccation Solution Corresponding Solute Mass Percentages 0.1 M trehalose in water trehalose … aegion concurWebOct 28, 1999 · Abstract. The glass transition temperature ( Tg) and viscosity of aqueous trehalose and its mixtures with either NaCl or Na 2 B 4 O 7 (borax) have been measured … kanocoモデルWebHigh Glass Transition Temperature Trehalose Food Grade For Frozen Foods. Trehalose for frozen foods /Sweeteners/trehalose dihydrate/food water retention agent/45% of … aegion conroeWebGlass transition temperatures of maximally freeze concentrated pullulan/trehalose solutions T g ′ (a) and freeze-dried pullulan/trehalose blends T g (b), fitted using the Gordon-Taylor... kano 1931海の向こうの甲子園 映画WebPurpose. To address the lack of fundamental thermophysical data for trehalose and its aqueous systems by measuring equilibrium and non-equilibrium properties of such systems. Methods/Results. Differential scanning calorimetry (DSC) and dynamic mechanical analysis were used to measure glass transition temperatures of trehalose and its solutions. X … kanoa福岡 インスタWebApr 19, 2024 · The onset glass transition temperature of the samples in the study ranged from 112.93 ± 1.08 to 112.99 °C ± 0.96, the midpoint T g from 118.42 ± 1.27 to 119.20 °C ± 1.18 and the endpoint T g from 122.07 ± 1.01 to 125.08 °C ± 1.92 [ 33 ]. kanoa福岡 マネージャー