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dc.contributor.authorGUEDES, A. M. M.
dc.contributor.authorPACHECO, S.
dc.contributor.authorWILHELM, A. E.
dc.contributor.authorBORGES, R. M. E.
dc.contributor.authorRIBEIRO, V. N.
dc.contributor.authorANTONIASSI, R.
dc.date.accessioned2025-09-29T10:49:12Z-
dc.date.available2025-09-29T10:49:12Z-
dc.date.created2025-09-29
dc.date.issued2025
dc.identifier.citationJournal of the American Oil Chemists' Society, v. 102, n. 9, Sept., 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1179165-
dc.descriptionThe seeds constitute approximately 3.34% (w/w) of pumpkin (Cucurbita moschata), a byproduct rich in bioactive compounds. Cucurbita seeds may contain approximately 33% oil with a unique composition and nutritional value. The present study aimed to obtain pumpkin (C. moschata) seed oil by screw pressing (expeller) from four superior lines obtained through self-fertilization cycles, as well as a hybrid resulting from the crossing of two lines developed at the Embrapa Semi-arid plant breeding program. A commercial sample was used as a control. The oil was extracted using an expeller press with a maximum capacity of 3–5 kg/h, and the oil yield, oil recovery, and cake residual oil content were evaluated. The oil quality, fatty acid profile, tocochromanol, and carotenoid composition were assessed. There was a significant difference in seed oil content (27%–37%, dry weight), oil yield after pressing (13.6%–26.2%) and cake residual oil content (14.1%–18%) (p < 0.05) that presented a positive and negative correla- tion with the seed oil content, respectively. Peroxides and free fatty acid content were up to 2.28 meq/kg and 0.22%, respectively, showing the high initial quality of screw pressed oils. There were significant differences (p < 0.05) for the fatty acid profile, and the main fatty acids were C18:2 (35.6%–38.9%), C18:1 (32.2%–37.5%), C16:0 (13.5%–15.3%), and C18:0 (9.4%–11.4%). The screw- pressed pumpkin seed oil presented high amounts of gamma-tocopherol (442–686 mg/kg). The results showed the feasibility of the process in obtaining an oil rich in bioactive compounds.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectExpeller pressing
dc.subjectComposto bioativo
dc.titleExpeller pressing of pumpkin seed oil: oil yield, quality, fatty acid profile, and bioactive compounds.
dc.typeArtigo de periódico
dc.subject.thesagroCucúrbita Moschata
dc.subject.thesagroAbóbora
dc.subject.thesagroSemente
dc.subject.thesagroÓleo Vegetal
dc.subject.thesagroTecnologia de Alimento
dc.subject.thesagroProcessamento
dc.subject.thesagroPrensagem
dc.subject.thesagroÁcido Graxo
dc.subject.thesagroRendimento
dc.subject.thesagroQualidade
dc.subject.thesagroMelhoramento Genético Vegetal
dc.subject.nalthesaurusBioactive compounds
dc.subject.nalthesaurusFatty acids
dc.subject.nalthesaurusOilseeds
dc.subject.nalthesaurusPressing
riaa.ainfo.id1179165
riaa.ainfo.lastupdate2025-09-29
dc.identifier.doihttps://doi.org/10.1002/aocs.70019
dc.contributor.institutionANDREA MADALENA MACIEL GUEDES, CTAA
dc.contributor.institutionSIDNEY PACHECO, CTAAeng
dc.contributor.institutionALLAN EDUARDO WILHELM, CTAAeng
dc.contributor.institutionRITA MERCIA ESTIGARRIBIA BORGES FAUSTINO, CPATSAeng
dc.contributor.institutionVANESSA NASCIMENTO RIBEIRO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO RIO DE JANEIROeng
dc.contributor.institutionROSEMAR ANTONIASSI, CTAA.eng
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