Eicosapentaenoic acid (EPA) is a polyunsaturated fatty acid present in fish oils used for omega-3 enriched diets. The natural cis double bond geometry can be transformed to the trans configuration during the deodorization process utilized in the food industry. The analytical discrimination of the possible five monotrans regioisomers represents a limiting step for the recognition and structure-a...

The thesis is focussed on low consistency (LC) refining of mechanical pulp. The research included evaluations of energy efficiency, development of pulp properties, the influence of fibre concentration on LC refining and effects of rotor position in a two-zoned LC refiner. Trials were made in mill scale in a modern TMP line equipped with an MSD Impressafiner for chip pre-treatment, double disc (...

This study conducted a comparative analysis of two refiner plates that had different bar patterns. The were designed with three distinct zones, including the high-intensity zone, transition and low-intensity draft angle 4–5 degrees. significant difference in cutting edge length (CEL) approximately four times. Specifically, TMP plate A (TP A) CEL 5.1 km/s, while B B) 22.7 indicating TP applied g...

The emergence of economic crises has forced countries to reform the development strategy with a view to improving economic management. The intervention of governments in the free functioning of the market to reduce social problems by paying subsidies in general and fixing prices have a lot of problems Which makes the information provided by the companies unrealistic and unviable. The most impor...

possibility of replacing whole soy flour for chocolate fat in chocolate production and its impact on textural, rheological and sensory properties of low fat chocolate was explored. for doing this, whole soy flour in 5 levels (0, 2,4,6,8 percent) and two refining times (105 and 135 minutes) was employed. results indicated that longer refining time gave rise to reduction in particles size and inc...

Background: Regarding the growing burden of non-communicable diseases (NCDs) and exposure to their risk factors, continuous need for nationwide data, we aimed develop latest round STEPwise Approach NCD Risk Factor Surveillance (STEPS) survey in 2021 Iran, while COVID-19 pandemic was still present. Methods: In addition three main steps this survey, including questionnaires, physical measurements...

Carbide insertion plays a pivotal role in the biosynthesis of M-cluster, the cofactor of nitrogenase. Previously, we proposed a carbide insertion pathway involving methyltransfer from SAM to a FeS precursor and hydrogen abstraction from this methyl group that initiates the radical-based precursor maturation. Here we demonstrate that the methyl group is transferred to a precursor-associated sulf...