Mauritia arabica shell (MAS), is widely applied as a Chinese tradition medicine after thermal decomposition. However, it is still uncertain how the thermal decomposition process affects the physicochemical properties ...Mauritia arabica shell (MAS), is widely applied as a Chinese tradition medicine after thermal decomposition. However, it is still uncertain how the thermal decomposition process affects the physicochemical properties of MAS. Moreover, the influences of these properties on the bioavailability have not been well understood. In this investigation, a temperature-programmed pyrolysis process is applied to calcine MAS to achieve the desired MAS with different physicochemical properties. The results showed that a weight loss of 43.27% - 44.73% was detected after MAS was calcined at 900°C, which was mainly attributed to the decomposition of protein, the phase transition of calcium carbonate from aragonite to calcite, and the decomposition of calcium carbonate. The activation energy in the heating duration was calculated by applying the Kissinger-Akahira-Sunose model (KAS), which was 58.13 kJ/mol for crystalline transformation and 181.27 kJ/mol for decomposition. Besides,according to the analyses from Fourier transform infrared (FTIR) and X-ray powder diffraction (XRD) tests, the crystalline of calcium carbonate in MAS was aragonite. These results provide beneficial temperature parameters for the pretreatments of MAS for pharmaceutical usages.展开更多
The goals of the research were to establish the biochemical and anthropometric markers of the Waraos sample population, its frequency of metabolic syndrome, and through a survey, the mains components of its diet: Mori...The goals of the research were to establish the biochemical and anthropometric markers of the Waraos sample population, its frequency of metabolic syndrome, and through a survey, the mains components of its diet: Moriche fruit, plantain, cassava root and its products. A clinical study was including a population of 145 individuals belonging to the Yakariken community Waraos tribe. From this group a random sample of 42 individuals were selected and anthropometric measurements, glucose and insulin in blood serum, insulin resistance by HOMA, blood pressure, as well as lipidic profile were tested. Additionally, samples of the Moriche fruit, plantain unripe fruit, casaba root and “casaba” (cake made from cassava edible pulp) were analyzed. The results obtained showed an average corporal mass index of 23.27 ± 2.52 together with the waist average of 79.51 ± 6.53. The blood screen results demonstrated that in average the basal glucose content was 80.38 ± 12.82 mg/dl, the basal insulin 9.05 ± 6.75, mean of the blood pressure of 90 ± 12, HOMA 1.80 ± 1.78, total cholesterol 133.52 ± 21.42 mg/dl, HDL 37.22 ± 7.88 mg/dl, LDL 82.23 ± 18.20, and the triglycerides 105.12 ± 62.56 mg/dl. The fruits composition had shown high contents of dietary fiber (19.86%), resistant starch (17.61%), and crude fats (18.40%). The results concluded that a diet rich in complex carbohydrates, fibers and unsaturated fatty acids, beside exercise should induce a low insulin resistance with the absence of dislipidemia, reducing the risk for the development of any metabolic syndrome. These results are inherent in low incidence of cardio vascular alterations.展开更多
文摘Mauritia arabica shell (MAS), is widely applied as a Chinese tradition medicine after thermal decomposition. However, it is still uncertain how the thermal decomposition process affects the physicochemical properties of MAS. Moreover, the influences of these properties on the bioavailability have not been well understood. In this investigation, a temperature-programmed pyrolysis process is applied to calcine MAS to achieve the desired MAS with different physicochemical properties. The results showed that a weight loss of 43.27% - 44.73% was detected after MAS was calcined at 900°C, which was mainly attributed to the decomposition of protein, the phase transition of calcium carbonate from aragonite to calcite, and the decomposition of calcium carbonate. The activation energy in the heating duration was calculated by applying the Kissinger-Akahira-Sunose model (KAS), which was 58.13 kJ/mol for crystalline transformation and 181.27 kJ/mol for decomposition. Besides,according to the analyses from Fourier transform infrared (FTIR) and X-ray powder diffraction (XRD) tests, the crystalline of calcium carbonate in MAS was aragonite. These results provide beneficial temperature parameters for the pretreatments of MAS for pharmaceutical usages.
文摘The goals of the research were to establish the biochemical and anthropometric markers of the Waraos sample population, its frequency of metabolic syndrome, and through a survey, the mains components of its diet: Moriche fruit, plantain, cassava root and its products. A clinical study was including a population of 145 individuals belonging to the Yakariken community Waraos tribe. From this group a random sample of 42 individuals were selected and anthropometric measurements, glucose and insulin in blood serum, insulin resistance by HOMA, blood pressure, as well as lipidic profile were tested. Additionally, samples of the Moriche fruit, plantain unripe fruit, casaba root and “casaba” (cake made from cassava edible pulp) were analyzed. The results obtained showed an average corporal mass index of 23.27 ± 2.52 together with the waist average of 79.51 ± 6.53. The blood screen results demonstrated that in average the basal glucose content was 80.38 ± 12.82 mg/dl, the basal insulin 9.05 ± 6.75, mean of the blood pressure of 90 ± 12, HOMA 1.80 ± 1.78, total cholesterol 133.52 ± 21.42 mg/dl, HDL 37.22 ± 7.88 mg/dl, LDL 82.23 ± 18.20, and the triglycerides 105.12 ± 62.56 mg/dl. The fruits composition had shown high contents of dietary fiber (19.86%), resistant starch (17.61%), and crude fats (18.40%). The results concluded that a diet rich in complex carbohydrates, fibers and unsaturated fatty acids, beside exercise should induce a low insulin resistance with the absence of dislipidemia, reducing the risk for the development of any metabolic syndrome. These results are inherent in low incidence of cardio vascular alterations.
