astm standard oil extraction in sunflower seeds in morocco

                                               
                                               
                                               
                                               
                                               
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  • Can hydrothermal pretreatment be used to extract oil from high stearic high oleic sunflower seeds?
  • The aim of the present work was to investigate the effects of applying a hydrothermal pretreatment to the solvent extraction of oil and minor compounds (tocopherols) from high stearic high oleic sunflower seeds (HSHO) of different oil content, partially dehulled and undehulled. 2. Materials and methods 2.1. Sample characterization
  • Why is prepress solvent extraction better than sunflower meal?
  • Because sunflower oil has a substantially higher economic value than sunflower meal, process economics improve significantly as the oil recovery yield increases. Therefore, prepress solvent extraction, with the highest oil recovery yield, is the process method utilized today for the majority of the sunflower seed that is crushed globally.
  • How is sunflower crushed for oil recovery?
  • Sunflower is crushed for oil recovery via one of two process methods, hard pressing or prepress solvent extraction. Hard pressing relies upon exerting high pressure on the prepared seed to separate oil from the solids fraction, historically recovering about 25% oil from the seed.
  • Does hydrothermal pretreatment increase oil yield from partially dehulled hsho sunflower seeds?
  • The kinetic analysis of the oil extraction from the partially dehulled HSHO sunflower seeds with high oil content (DHO) showed that, for all the extraction times, the hydrothermal pretreatment improved the oil yield, reaching a maximum increase of 15.4% at 30 min of extraction.
  • What is sunflower seed processing?
  • Sunflower seed processing focuses on sunflower oil as the most valuable product. It is used as high-value oil in various food applications. The deoiled meal is considered a byproduct and is mostly used as animal feed. In 2011, annual world production of deoiled sunflower meal was at 16 million tons (FAO, 2013).
  • Where are sunflowers grown in Morocco?
  • According to data from the High Commissioner for Planning ( HCP, 2021 ), sunflower and rapeseed areas are mainly located in Rabat-Salé-Kenitra (16,000?ha), Fes-Meknes (8000?ha) and Casablanca-Settat (2000?ha) during the 2019/2020?crop year ( Fig. 14 ). There are 2?crushing units and 5?vegetable oil refining plants in Morocco.