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- W2007450001 abstract "Chitin, chitosan and the newly synthesized and fully characterized N-lauryl chitosan and N-dimethylaminopropyl chitosan, endowed with higher hydrophobicity and cationicity, respectively, were tested for their capacity to alter the composition of olive oil upon percolation of the latter through a bed of their respective powders. The oil samples were extracted, saponified and submitted to gas-chromatography. Results indicated that the percentages of 12 fatty acids were not modified, but the diacylglycerol and steroid concentrations were greatly altered. The percolated oil was depleted of C34 and C36 diacylglycerols (lowered to 42% of the control) when the oil was contacted with chitosan and N-lauryl chitosan, whilst the oil fraction percolated through chitin became 30% enriched. N-Dimethylaminopropyl chitosan was also effective in retaining diacylglycerols. The direct analysis of the unsaponifiable fraction revealed that campesterol, stigmasterol and avenasterol were enriched in the oil fraction retained by chitin and N-lauryl chitosan, while β-sitosterol increased slightly in the fraction retained by chitosan and N-lauryl chitosan. Triterpene alcohols were higher in the oil fraction retained by chitin. This work indicates that chitin might be more suitable than chitosan for sequestering steroids, and that, in general, the chitin derivatives discriminate among the various lipids." @default.
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- W2007450001 date "2000-11-01" @default.
- W2007450001 modified "2023-09-30" @default.
- W2007450001 title "Interactions of chitin, chitosan, N-lauryl chitosan and N-dimethylaminopropyl chitosan with olive oil" @default.
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- W2007450001 doi "https://doi.org/10.1016/s0144-8617(00)00170-3" @default.
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