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Optimization of biodiesel production from non-edible Carica papaya seed oil was experimentally investigated in this study. Biodiesel production process parameters such as methanol: oil molar ratio, catalyst type and their concentrations, reaction temperature and reaction time were evaluated. It was found that the optimum process parameters for transesterification of the Carica papaya seed oil at an...
The limitation of unrenewable energy required alternative renewable energy and environmental friendly. Biodiesel as one renewable energy that production from vegetable oil. The main reactions are on biodiesel production esterification and transesterification. Nevertheless, this reaction is slow, requires a lot of alcohol and a catalyst, the reaction has not been perfect. A mixing of vegetable that...
Tartary buckwheat(TB) is an annual crop with abundant biological nutrition components. This research mainly showed that total flavonoid and total polyphenols contents of tartary buckwheat sprouts(TBS). a-Glycosidase Inhibitor activity of TBS was evaluated in vitro. The research showed that the seeds were surface sterilized with 5% of sodium hypochlorite for experiment. The peak of flavonoids yield...
Biodiesel was synthesized by transesterification of waste frying oil. The 1H-NMR, Gas chromatography, and FT-IR analyses of the final product confirmed that in the chosen experimental conditions, the transesterification reaction was complete and the biodiesel does not contain any traces of glycerol. The transesterification of the low cost raw materials (waste frying oil and crude purified methanol)...
Use of Raman spectroscopy in detecting aflatoxin B1 (AFB1) in maize kernels is reported. Distinct difference between AFB1 contaminated and uncontaminated kernels were observed from Raman spectral profiles obtained after 532 nm excitation.
This research is aim to develop the automatic machine to produce biodiesel from waste cooking oil. In Thailand some chef are using waste cooking oil to re-cooking food such as fried chicken, fried pork, banana fritters etc. so that, It cause cancer to consumer who eat their food. Therefore, this machine is building for alternative ways to re-use the wasted cooking oil to make the biodiesel. This way...
Preliminary studies of Cabomba furcata from Chini Lake, Pahang, Malaysia has shown that this plant containing bioactive phytochemical such as saponin. Unfortunately no intensive research has been conducted since saponin are believed to have medicinal benefits to the humankind and they have the potential to be commercialized in pharmaceutical field. This study was done to identify the type of saponin...
A simple, rapid and reproducible HPLC method was used for the simultaneous determination of chlorogenic acid, baicalin and forsythin in Xiao'erjiebiao Granules, at the same time, response surface methodology (RSM) was devoted to forecast the best extraction technology. The HPLC System included an Agilent ZORBAX SB-C18 column ( 250 mm × 4.6 mm, 5µm ), acetonitrile (A) -- 0.4% ethylic acid (B) as mobile...
This study was conducted to evaluate the effects of different extraction methods on the major flavonoid content of raw and steamed Scutellariae radix by applying high-performance liquid chromatography. Eight extraction methods such as extraction method in 2010 Chinese Pharmacopoeia (ChP-method), water refluxing extraction (WTRE-method), 60% ethanol refluxing extraction (ETRE-method), ultrasonic-assisted...
Azeotropic distillation is a special case of multicomponent distillation used for separation of binary mixtures which are either difficult or impossible to separate by ordinary fractionation. It is commonly used to separate close boiling mixtures with far fewer trays than in conventional distillation and with less circulation, resulting in lower equipment and energy costs. It is widely used for the...
A novel method extracting with ether, deriving by methanol, deteminating with gas chromatography-mass spectrometry (GC-MS) for analyzing 8 kinds of acid herbicide residues in water has been established. The optimum experimental conditions were as follows: Adding 8 drops of concentrated sulfuric acid; adding 1.0 mL methanol; deriving 60.0 min. Linear of all herbicides is good in the range of 0.05 to...
Matrix effects, ionization enhancement or suppression, are always possible with the electrospray ionization technique and can significantly hamper the analysis of PFAs in complex environmental matrixes. The objective of this study is to determine and eliminate the matrix effects in analysis of sewage using high performance liquid chromatography-negative electrospray tandem mass spectrometry (HPLC-negative...
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