Effect of supercritical carbon dioxide on physicochemical and techno-functional properties of amaranth flour

Delgado-García, Yolanda Isabel; Luna-Suárez, Silvia; López‐Malo, Aurelio; Morales-Camacho, Jocksan I.

doi:10.1016/j.cep.2022.109031

Cited by 7 publications

(6 citation statements)

References 41 publications

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“…For b* , the reduction occurs from 17.9 (original powder) to 10.0 (hexane-treated powder). A similar pattern was observed by Delgado-García et al [ 43 ] when defatted amaranth flour was compared with full-fat flour. Due to the removal of fat, in lipophilic compounds such as pigments were removed from the sample; therefore, a* decreased from 2.3 to 1.1 and b* from 19.2 to 15.8 [ 43 ].…”

Section: Resultssupporting

confidence: 86%

Improvements in Visual Aspects and Chemical, Techno-Functional and Rheological Characteristics of Cricket Powder (Gryllus bimaculatus) by Solvent Treatment for Food Utilization

Damasceno

Nakajima

Taarji

et al. 2023

Foods

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This study aimed to improve the visual aspects and chemical, techno-functional and rheological characteristics of Gryllus bimaculatus cricket powder through the use of different solvents, with the objective of using it as a protein source in food production. Four treatments (pH 5 aqueous solution, ethanol 20%, ethanol 99.5%, and hexane) were applied to the powder, and analyses were conducted to assess changes in the previously mentioned parameters. The results showed that the treatments led to an increase in protein concentration (from 55.4 to 72.5%) and a decrease in fat concentration (from 33.0 to 6.8%) in ethanol 99.5% treated powder, as well as a reduction in anti-nutritional compounds concentration, such as tannins (from 13.3 to 5.9 g/kg), in pH 5 treated powder, which is important for the nutritional value of the final product. The color of the powders was improved, being lighter after hexane and ethanol 99.5% treatments due to the removal of melanin with the defatting process. Flowability, water, and oil holding capacity were also improved in the defatted powders. All the results suggest that the main composition of the powder directly influences the analyzed parameters. These findings suggest that cricket powder treated with solvents can be used as a protein source in different food applications.

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Section: Resultssupporting

confidence: 86%

Improvements in Visual Aspects and Chemical, Techno-Functional and Rheological Characteristics of Cricket Powder (Gryllus bimaculatus) by Solvent Treatment for Food Utilization

Damasceno

Nakajima

Taarji

et al. 2023

Foods

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“…The other part of tomato seed meal was defatted with scCO 2 (TSMC); it was obtained using the supercritical fluid extraction equipment that was assembled at the University of the Americas Puebla as previously reported by Conde-Hernández, et al [15]. The conditions for the extraction process were set based on previous experiments [16]; samples (20 g) of the meal were placed into the extraction cell and subjected to a temperature of 50 ± 0.1 • C and pressure of 24.82 MPa. The CO 2 volumetric flow rate was set at 130 ±18 mL/min for semi-continuous extraction over 6 h, with a sample (oil extraction) taken every 30 min in a recollection cell that was immersed in a water bath at 8 ± 0.5.…”

Section: Tomato Seed Meal Degreasingmentioning

confidence: 99%

Supercritical CO2 Treatment to Modify Techno-Functional Properties of Proteins Extracted from Tomato Seeds

Mateo-Roque,

Morales-Camacho,

Jara-Romero

et al. 2024

Foods

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Tomato seeds are a rich source of protein that can be utilized for various industrial food purposes. This study delves into the effects of using supercritical CO2 (scCO2) on the structure and techno-functional properties of proteins extracted from defatted tomato seeds. The defatted meal was obtained using hexane (TSMH) and scCO2 (TSMC), and proteins were extracted using water (PEWH and PEWC) and saline solution (PESH and PESC). The results showed that scCO2 treatment significantly improved the techno-functional properties of protein extracts, such as oil-holding capacity and foaming capacity (especially for PEWC). Moreover, emulsifying capacity and stability were enhanced for PEWC and PESC, ranging between 4.8 and 46.7% and 11.3 and 96.3%, respectively. This was made possible by the changes in helix structure content induced by scCO2 treatment, which increased for PEWC (5.2%) and decreased for PESC (8.0%). Additionally, 2D electrophoresis revealed that scCO2 hydrolyzed alkaline proteins in the extracts. These findings demonstrate the potential of scCO2 treatment in producing modified proteins for food applications.

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“…SC-CO 2 refers to a fluid in which the temperature and pressure exceed its critical point. The critical temperature (Tc) of CO 2 is about 31.7 °C, and the critical pressure (Pc) is about 7.37 MPa [ 46 ]. The phase diagram of SC-CO 2 is shown in Figure 1 .…”

Section: Overview Of Sc-co 2 and Heavy Oilmentioning

confidence: 99%

Research Progress on Displacement Mechanism of Supercritical CO2 in Low-Permeability Heavy Oil Reservoir and Improvement Mechanism of Displacement Agents

Sun,

Zhang,

Tian

et al. 2023

Molecules

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With the continuous growth of global energy demand and the late stage of conventional oilfield exploitation, the demand for developing and utilizing low-permeability heavy oil reservoirs is becoming increasingly urgent. However, the exploitation of low-permeability heavy oil reservoirs faces many challenges due to their high viscosity, low permeability, and complex geological conditions. To overcome these challenges, researchers have gradually introduced SC-CO2 as an oil displacement agent in the exploitation of heavy oil reservoirs. However, the oil displacement mechanism of SC-CO2 in low-permeability heavy oil reservoirs and its improvement mechanism are still not completely understood. The article provides a detailed study and understanding of the oil displacement mechanism of SC-CO2, which involves the expansion of heavy oil volume through SC-CO2 dissolution. This mechanism reduces the capillary resistance and flow resistance during the oil flow process. The permeation of CO2 disrupts the internal structure and arrangement of heavy oil, reducing its viscosity. CO2 extracts both light and heavy components from the heavy oil, reducing the residual oil saturation. In addition, the mechanism of improving the effect of oil displacement agents such as nanoparticles, polymers, and surfactants on SC-CO2 displacement was also explored. By further exploring the mechanisms and improvement mechanisms of SC-CO2 displacement for heavy oil, it can guide the selection and optimization of oil displacement agents. Furthermore, understanding the mechanism can also provide a theoretical basis for engineering practice and technical innovation. While the research on CO2 flooding is analyzed and evaluated, the obstacles and challenges that still exist at this stage are indicated, and future research work on CO2 in low-permeability heavy oil reservoirs is proposed.

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Effect of supercritical carbon dioxide on physicochemical and techno-functional properties of amaranth flour

Cited by 7 publications

References 41 publications

Improvements in Visual Aspects and Chemical, Techno-Functional and Rheological Characteristics of Cricket Powder (Gryllus bimaculatus) by Solvent Treatment for Food Utilization

Improvements in Visual Aspects and Chemical, Techno-Functional and Rheological Characteristics of Cricket Powder (Gryllus bimaculatus) by Solvent Treatment for Food Utilization

Supercritical CO2 Treatment to Modify Techno-Functional Properties of Proteins Extracted from Tomato Seeds

Research Progress on Displacement Mechanism of Supercritical CO2 in Low-Permeability Heavy Oil Reservoir and Improvement Mechanism of Displacement Agents

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