Bioethanol is a strategic biofuel in Brazil. Thus, a strong metrological basis for its measurements is required to ensure the quality and promote its exportation. Recently, Inmetro certified a reference material for water content in bioethanol. This paper presents the results of these studies. The characterization, homogeneity, short-term stability and long-term stability uncertainty contributi...

The sterol content and composition of the small intestinal muccsa has been studied in the rat, guinea pig, and rabbit. In the three species, noncholesterol sterols formed a large proportion of the total sterol content. In the rat, the contribution due to plant sterols was much smaller than in the guinea pig and rabbit, but in all three species the amount of campesterol present seemed disproport...

The effect of cultivar on sterol composition of tomato (Solanum lycopersicum L.) seed oil from three industrial cultivars (Principe Borghese, Rebelion F1 and San Marzano) grown in Calabria Region (Southern Italy) was investigated. Sterol composition is presented both as percentage on the total sterol content (%) and as an absolute value (mg/kg). Rebelion F1 produced the worst seed oil in terms ...

Aerial and underground parts of Geum rivale (Rosaceae) were investigated. Tiliroside, gallic acid, ellagic acid and a sterol fraction were isolated from aerial parts of the plant. The sterol fraction was analyzed using GC-MS. Eleven phenolic acids were identified in aerial parts of the plant, and eight in underground parts, by means of RP-HPLC analysis. The quantitative determination of phenoli...

Intake of phytosterols (and -stanols) has been shown to decrease the level of low-density lipoprotein cholesterol and thus protect against development of cardiovascular diseases. Therefore, studies on the cultivar and year-to-year variation in phytosterol content in rye grains have been performed. The phytosterol content and composition of different rye cultivars, grown under identical conditio...

The study reports the changes in fatty acid and sterol composition; as well volatile 3-MCPD ester content of two commercial vegetable oils at different steps refining process. Canola corn were collected from neutralization, bleaching, winterization deodorization stages a chemical plant oil samples evaluated for acid, sterol, compounds contents. Results have shown that total contents decreased t...

Barley (Hordeum vulgare) has a much higher content of bioactive substances than wheat (Triticum aestivum). In order to investigate additive and/or synergistic effect(s) on the phytosterol content of barley chromosomes, we used a series of barley chromosome addition lines of common wheat that were produced by normal crossing. In determining the plant sterol levels in 2-week-old seedlings and dry...