Techno-economics feasibility of supercritical CO2 ambrette seed extraction for optimised parameters obtained using RSM

Pise, Viplav Hari; Thorat, Bhaskar N.

doi:10.1016/j.jarmap.2023.100490

Cited by 1 publication

(1 citation statement)

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“…The supercritical CO 2 extraction is a batch process with limited capacity compared with hexane extraction. In economic feasibility studies, Pise and Thorat and Soh et al state an annual production capacity of around 1,800–65,000 and 400,000 kg of raw material/year for industrial supercritical CO 2 plants. , Due also to the higher production costs, this process is economically feasible for oils with high added value, like ambrette (550 USD/kg) and patchouli (61–63 USD/kg) essential oils.…”

Section: Introductionmentioning

confidence: 99%

Semi-industrial Countercurrent Extraction of Soybean with 2-Methyloxolane for High-Quality Protein and Oil

Bartier,

Cravotto,

Claux

et al. 2024

ACS Sustainable Chem. Eng.

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This study investigates the extraction of soybean oil with 2-methyloxolane (2-MeOx) in a semi-industrial continuous multistage countercurrent extractor (Model IV Crown Iron Extractor). 2-MeOx is a biobased solvent that was added to the list of permitted solvents for food production in Europe in January 2023. 2-MeOx was able to extract an oil fraction that was inaccessible to hexane. This led to a lower residual oil content in the meal extracted with 2-MeOx (0.48 vs 1.94 g oil/100 g meal for hexane). Compared with hexane, 2-MeOx yielded an oil richer in phenolic compounds (3229.7 vs 145.5 mg GAE/kg oil), with higher oxidative stability (>70 vs 17.8 h) and improved unsaponifiable matter (0.63 vs 0.43% w/w). In addition, there was a higher protein dispersibility index (PDI) (55.35 vs 40.84%) and higher protein solubility in KOH solution (94.14 vs 84.79%) observed with 2-MeOx compared to hexane-extracted meal. Furthermore, 2-MeOx (1% water) could provide a meal with a PDI even higher than that of the raw material. These aspects can lead to a considerable economic advantage that could compensate for the higher energy consumption of the 2-MeOx distillation process compared to hexane. However, extraction with 2-MeOx resulted in a higher peroxide value in the oil (12.53 vs 2.65 meq/kg fat) and a higher solvent retention index in the meal (0.424 vs 0.285 g solvent/g meal). The influence of some key extraction parameters (temperature, L/S ratio, solvent water content) on the process efficiency and product quality was investigated. This study confirms the great potential of 2-MeOx in the extraction of oilseeds and suggests optimized extraction conditions for high-quality products and efficient industrial production process.

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Section: Introductionmentioning

confidence: 99%