Nitrosomethylalkylamines with chain lengths from C4 (n-butyl-) to OK (n-tetradecyl-) were each administered to three rats at doses equimolar with 12 mg of the butyl compound. All of the compounds administered to rats at this dose, twice a week for 30 weeks, induced tumors in 100% of the animals. Some of the compounds with even-numbered alkyl chains induced bladder tumors, and a connection was s...

Nine oligosaccharides have been isolated from urine collected from an O(H), Le(a+ b-1, nonsecretor, woman during her pregnancy and subsequent lactation. One of them is a new hexasaccharide denoted lacto-N-neo-difucohexaose II: P-D-Gal-(1~4)-[ru-L-Fuc-(1~3)1-P-D-GlcNAc-(1~3)-P-DGal-(1~4)-[a-L-Fuc-(1~3)1-D-Glc. Seven of the remainder were identified as the milk oligosaccharides lacto-N-difucohexa...

In this study, olive oil residue (OR) biomass was pyrolyzed in the presence of bulk MgO (B-MgO), nano-MgO (N-MgO), ZnO (B-ZnO)), and nano-ZnO (N- ZnO) metal oxides at different temperatures (400, 600, 800 ºC). Significant results were obtained terms synthesis gas formation CO2 reduction. The efficiency distribution products as a result oxide-based pyrolysis process effects examined detail. Nano...

Background: Ethnobotanical survey in the rural villages Nepal revealed that fruits of Rhus chinensis Mill. have been using for treatment diarrhea and dysentery. Objective: To evaluate antimicrobial antioxidant effects, identification chemical constituents R. chinensis. Materials Methods: Phytochemical screening was performed on hexane 70% methanolic extracts sample followed by gas chromatograph...

Fried and baked banana-based snacks are popular in South East Asia and banana chip is popular in other countries, such as India, Indonesia, China, African countries, etc; these snacks may contain acrylamide in concentration which may be of concern due to its toxicity. This study was carried out to determine acrylamide concentration in popular banana based snacks in Malaysia using a modified met...

The objective of the study is to observe the anti-motion sickness effect of volatile oil extract of Pinelia ternata in rats, compare the strength of anti-motion sickness action between the Pinelia ternata volatile oil extract and the dimenhydrinate, and analyze the constituents in volatile oil of Pinelia ternata. Rats with frequency is 0.05Hz, the peak speed of 240°/s rotated to stimulate, evok...

A new single-drop microextraction approach is proposed for the extraction of compounds with a wide range of volatilities from tap water samples with separation/detection by gas chromatographymass spectrometry. This new microextraction mode is called direct immersion-headspace-single drop microextraction (DI-HS-SDME). Trihalomethanes (THMs), hydrocarbons with low molecular weight (benzene, ethyl...

This study aims to determine the chemical and physical composition antibacterial activity of glasswort. Soxhlet extraction S. europaea was performed using Hexane analyzed by Gas chromatographymass spectrometry. Alpha-tocopherol content analysed Liquid chromatography with tandem mass The elemental analysis investigated inductively coupled plasma crystallographic texture powder samples were deter...

In this work, ZnCaO2 (zinc oxide-calcium oxide) nanocomposite were synthesized at different temperatures (500-700°C) by sol-gel method based on polymeric network of polyvinyl alcohol (PVA). The synthesized samples were characterized by SEM/EDAX, FT-IR and XRD techniques. It was found that synthesized nanocomposites have 1.62, 2.05 and 13.91%wt of CaO, respectively. The obtained results show tha...