03306nab a2200289 i 4500003000900000005001700009008004100026040001800067072001400085072000800099100003300107100003000140100002900170100002200199245012500221500006500346520105100411520117501462650001402637650001002651650001902661650002902680773019502709856007702904942001602981999001902997BR-BrBNA20240702142841.0240702b2016    bl.mr|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aQ02b0312  aQ04  aTrentini, Caroline Portilho   aOliveira, Dalany Menezes   aZanette, Cristina Maria   aSilva, Camila da   aLow-pressure solvent extraction of oil from macauba (Acrocomia aculeata) pulp: characterization of oil and defatted meal  aPublicação on-line; 31 ref.; 3 tables; Sumaries (En, Pt)  a

ABSTRACT - This study aimed to extract the oil from macauba pulp using a low-pressure solvent extraction, as well as characterisation of the extracts and defatted meal obtained using different solvents (n-hexane, ethyl acetate and isopropanol). Results reported higher yields in oil, 27.43%, using isopropanol (P<0.05), wherein the highest levels of β-carotene in the extract, 348.30mg 100g-1, were obtained with this solvent. In the composition of the extracts, monounsaturated fatty acids were predominantly found, and it was reported that the type of solvent had no significant influence (P>0.05) on the composition; however, in the quantification of free glycerol compounds, isopropanol showed higher levels, 104.15mg 100g-1, of these compounds (P<0.05). Meals had higher ash, protein and fibre content when compared to pulp. Thus, oil removal can be stated to promote water retention capacity; however, it has no influence on the other technological characteristics evaluated.

Key words: Acrocomia aculeata, vegetable oil, defatted meal.  a

RESUMO - O presente trabalho objetivou a extração do óleo da polpa de macaúba utilizando extração por solvente a baixa pressão, bem como a caracterização dos extratos e farelos obtidos, utilizando diferentes solventes (n-hexano, acetato de etila e isopropanol). Os resultados reportam maiores rendimentos em óleo, 27,43%, na utilização do isopropanol (P<0,05), sendo que os maiores teores em β-caroteno no extrato, 348,30mg 100g-1, foram obtidos com este solvente. Na composição dos extratos, predominam os ácidos graxos monoinsaturados e relata-se que o tipo de solvente não apresentou influência significativa (P>0,05) na composição, no entanto, na quantificação dos compostos livres de glicerol, o isopropanol apresentou os maiores teores, 104,15mg 100g-1, desses compostos (P<0,05). Os farelos apresentaram maiores teores de cinzas, proteína e fibras, quando comparados à polpa. A remoção do óleo favorece a capacidade de retenção de água, no entanto, não tem influência nas demais características tecnológicas avaliadas.

Palavras-chave: Acrocomia aculeata, óleo vegetal, farelo desengordurado.  aMACAÚBA  aPOLPA  aÓLEO VEGETAL  aCOMPOSIÇÃO QUÍMICA0 024089314926dSanta Maria-RS Universidade Federal de Santa Maria - Centro de Ciências Rurais 1991o2024-1177tCiência Rural (Brazil)x0103-8478gv. 46(4) p. 725-731; (2016)wBR2024001288  uhttps://www.scielo.br/j/cr/a/b3Nws8yXDkQhtX3BDpnQYyq/?format=pdf&lang=en  cAnalítica  c300354d300354