Development and Characterization of Gelled Double Emulsions Based on Chia (Salvia hispanica L.) Mucilage Mixed with Different Biopolymers and Loaded with Green Tea Extract (Camellia sinensis)
FOODS
Authors: Guzman-Diaz, Diana A.; Trevino-Garza, Mayra Z.; Rodriguez-Romero, Beatriz A.; Gallardo-Rivera, Claudia T.; Amaya-Guerra, Carlos Abel; Baez-Gonzalez, Juan G.
Abstract
The aim of this research was to develop and characterize five gelled double emulsions based on chia mucilage (CM) and different biopolymers (kappa-carrageenan, C; locust bean gum, L; thixogum, T; and whey protein concentrate, W) loaded with green tea extract (GTE). Gelled double emulsions consisted of W-1 (whey-protein-concentrate/sodium-azide/NaCl/GTE)/O and (PGPR/canola-oi)/W-2 (CM, CMC, CML, CMT and CMW), and were characterized based on physicochemical properties during 35 days of storage. Optical microscopy clearly showed the drops of the internal phase surrounded by droplets of oil dispersed in the second aqueous phase; the droplet size was higher for CMT and lowest for CMW. In addition, all emulsions were highly stable at creaming and were effective in reducing the loss of antioxidant activity (88.82%) and total phenols (64.26%) during storage; CMT, CML and CM were the most effective. Furthermore, all emulsions showed a protective effect by modulating the release of the GTE in a simulated gastrointestinal environment, allowing a controlled release during the gastric-intestinal digestion phases and reaching its maximum release in the intestinal phase (64.57-83.31%). Thus, gelled double emulsions are an alternative for the preservation of GTE and could be a potential alternative for their application in the development of functional foods.
The impact of time from injury to surgery in functional recovery of traumatic acute subdural hematoma
BMC NEUROLOGY
Authors: Chen, Shih-Han; Sun, Jui-Ming; Fang, Wen-Kuei
Abstract
BackgroundThe time from injury to surgery (TIS) is critical in the functional recovery of individuals with traumatic acute subdural hematoma (TASDH). However, only few studies have confirmed such notion.MethodsThe data of TASDH patients who were surgically treated in Chia-Yi Christian Hospital between January 2008 and December 2015 were collected. The significance of variables, including age, sex, traumatic mechanism, coma scale, midline shift on brain computed tomography (CT) scan, and TIS, in functional recovery was assessed using the student's t-test, Mann-Whitney U test, chi-square test, univariate and multivariate models, and receiver operating characteristic (ROC) curve.ResultsA total of 37 patients achieved functional recovery (outcome scale score of 4 or 5) and 33 patients had poor recovery (outcome scale score of 1-3) after at least 1year of follow-up. No significant difference was observed in terms of age, sex, coma scale score, traumatic mechanism, or midline shift on brain CT scan between the functional and poor recovery groups. TIS was found to be significantly shorter in the functional recovery group than in the poor recovery group (145.527.0 vs. 181.9 +/- 54.5min, P-value=0.002). TIS was a significant factor for functional outcomes in the univariate and multivariate regression models. The analysis of TIS with the ROC curve between these two groups showed that the threshold time for functional recovery in comatose patients and those with TASDH who were surgically treated was 2h and 57.5min.Conclusions p id=Par TIS is an important factor l for the functional recovery of comatose TASDH patients who underwent surgery.