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Green solvents for deoiling pumpkin and sunflower press cakes: impact on composition and technofunctional properties

Morejón-Caraballo, Sophie; Rohm, Harald and Struck, Susanne (2023) Green solvents for deoiling pumpkin and sunflower press cakes: impact on composition and technofunctional properties. International Journal of Food Science and Technology, 58, pp. 1931-1939.

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Document available online at: https://ifst.onlinelibrary.wiley.com/doi/full/10.1111/ijfs.16335


Summary in the original language of the document

The applicability of protein-rich press cake from mechanical seed oil production is limited because of its relatively high residual oil content. To overcome this drawback, pumpkin and sunflower press cakes were deoiled at room temperature by using two green solvents, namely ethanol and isopropyl alcohol. Hexane, which is mostly used in the plant oil industry, was used as a reference. The derived meals were analysed regarding composition as well as with respect to technofunctional properties such as water-binding capacity, water solubility, nitrogen solubility and colour. Extraction efficiencies of more than 94% were achieved once the solvents were refreshed during extraction. In contrast to pumpkin meal, solvent-specific differences in the residual oil content of sunflower press cake were discovered, which was lowest for hexane and highest for ethanol. The water-binding capacity and nitrogen solubility of the meals were improved after solvent extraction. The results indicate that it is possible to replace hexane with more sustainable green solvents such as ethanol or isopropyl alcohol to extract residual oil from sunflower and pumpkin press cake.


EPrint Type:Journal paper
Keywords:BÖL, BOEL, BÖLN, BOELN, FKZ 19OE149, FERBLEND, solvent extraction, pumpkin oil cake, sunflower meal
Agrovoc keywords:
Language
Value
URI
English
solvent extraction
http://aims.fao.org/aos/agrovoc/c_28368
English
pumpkin oil cake
http://aims.fao.org/aos/agrovoc/c_d4326229
English
sunflower cake -> sunflower meal
http://aims.fao.org/aos/agrovoc/c_35709
English
UNSPECIFIED
UNSPECIFIED
Subjects: Food systems > Food security, food quality and human health
Crop husbandry > Production systems > Cereals, pulses and oilseeds
Food systems > Recycling, balancing and resource management
Food systems > Processing, packaging and transportation
Research affiliation: Germany > Federal Organic Farming Scheme - BOEL > Other projects
Germany > Other organizations Germany
DOI:10.1111/ijfs.16335
Related Links:https://www.bundesgrogramm.de
Deposited By: Rohm, Professor Harald
ID Code:53294
Deposited On:08 May 2024 06:56
Last Modified:08 May 2024 09:50
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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