Extraction and characterization of lipids from Sarcocornia ambigua meal: a halophyte biomass produced with shrimp farm effluent irrigation

Anais da Academia Brasileira de Ciências

CÉsar S.b. Costa¹  Juliano R.m. Vicenti¹  JoaquÍn A. MorÓn-villarreyes¹  Sergiane Caldas¹  Liziane V. Cardoso¹  Ricardo F. Freitas¹  Marcelo G.m. D'oca¹ 

关键词: Lipids;    Long chain fatty acids;    Palmitic acid;    Polar solvent;    ω6 acid;    lipídios;    ácidos graxos de cadeias longas;    ácido palmítico;    solvente polar;    ácido ω6;   

DOI  :  10.1590/0001-3765201420130022

来源: SciELO

【 摘 要 】

Sarcocornia ambigua is a perennial glasswort, native of South America and a potential new seed-oil crop and forage for direct irrigation with salt water. Small seeds develop inside fertile segments of its cylindrical leafless shoots and, at the harvest, seeds are typically mixed with remnant cellulose material difficult to separate. This work evaluated different extraction methods and the composition of total esterified fatty acids in a meal of ground fertile shoots of S. ambigua, seeking for an alternative primary matter and larger yield of total lipids. The highest lipid yield was obtained with a chloroform:methanol mixture (2:1)(v/v) (5.2% of dry weight). The most abundant polyunsaturated fatty acids in the meal were linoleic acid (C18:2; 21.4%) and oleic acid (C18:1; 18.3%). Fifty six percent of the lipids in S. ambigua meal were saturated and palmitic acid (C16:0) was the main fraction (19.8%). Long-chain fatty acids (≥ C20) represented 29.5% of the lipids. Most abundant long-chain fatty acids were behenic acid (C22:0; 7.1%), lignoceric acid (C24:0; 5.3%) and montanic acid (C28:0; 4.0%). The percentage of saturated lipids in S. ambigua meal was higher than that of vegetable oils with a MUFA nutritional profile and some of these lipids have known bioactive properties.

【 授权许可】

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