Kenaf (Hibiscus cannabinus) from the family Malvaceae, is a valuable fiber plant native to India and Africa and is currently planted as the fourth commercial crop in Malaysia. Kenaf seed oil contains alpha-linolenic acid, phytosterol such as β -sitosterol, vitamin E, and other antioxidants with chemopreventive properties. Kenaf seeds oil (KSO) was from supercritical carbon dioxide extraction fl...

Recent genetic studies attribute the negative correlation between population genetic diversity and distance from Africa to a serial founder effects (SFE) evolutionary process. A recent linguistic study concluded that a similar decay in phoneme inventories in human languages was also the product of the SFE process. However, the SFE process makes additional predictions for patterns of neutral gen...

Various beneficial properties has been attributed to Nigella sativa, including its antioxidant potential. Previously, it was reported that supercritical fluid extraction (SFE) could be used to obtain N. sativa extract rich in antioxidants. In the present study, N. sativa extracts prepared using the previously optimized SFE as well as the traditional Soxhlet extraction approaches were analyzed f...

With the aid of gas chromatography-mass spectrometry (GC-MS), a systematical and analytical evaluation method called Taguchi’s quality engineering has been applied to the in-situ supercritical fluid extraction (SFE) and chemical derivatization (ChD) of amphetamines from water to afford the optimal experimental conditions and hence achieved the highest recoveries of the analytes (as their triflu...

Guatemala suffers the double burden of malnutrition with high rates of stunting alongside increasing childhood overweight/obesity. This study examines the school food environment (SFE) at low-income Guatemalan elementary schools and discusses its potential impact on undernutrition and overweight/obesity. From July through October 2013, direct observations, in-depth interviews with school princi...

Extracting volatile compounds using supercritical carbon dioxide (scCO2) is one of the most interesting applications of supercritical technology, due to the high solubility of these substances in scCO2. Supercritical carbon dioxide extraction (SFE-CO2) has been applied for obtaining extracts from several vegetable matrices, among them turmeric (Curcuma longa), because its volatile oil contains ...

This case study examines the impact of low serum ferritin (sFe) on physiological assessment measures and performance in a young female 1500-m runner undertaking approximately 95-130 km/wk training. The study spans 4 race seasons and an Olympic Games. During this period, 25 venous blood samples were analyzed for sFe and hemoglobin (Hb); running economy, VO(2max), and lactate threshold were measu...

In this study, the effect of tensile test temperature (148 to 673 K) on the microstructural evolutions and the mechanical properties of high manganese twinning induced plasticity (TWIP) steel with the chemical composition of Fe- 31Mn-3Al-3Si (wt. %) was investigated. XRD, SEM and TEM were used to study the microstructural evolutions. Stacking fault energy (SFE) of the alloy was also calculated ...

The water resources of the western United States depend heavily on snowpack to store part of the wintertime precipitation into the drier summer months. A well-documented shift toward earlier runoff in recent decades has been attributed to 1) more precipitation falling as rain instead of snow and 2) earlier snowmelt. The present study addresses the former, documenting a regional trend toward sma...

Background: Orange peel essential oils were obtained using supercritical fluid extraction. This method is an important high scaling extraction methods that used for extraction of plant and animal extracts. Methodology: The experimental parameters of SFE such as temperature, pressure, and extraction time and modifier volume were optimized using a central composite design after a 24-1fractional ...