Journal ArticleDOI
Isolation of tocopherol and sterol concentrate from sunflower oil deodorizer distillate
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In this paper, the isolation of tocopherols and sterols together as a concentrate from sunflower oil deodorizer distillate was investigated, which included process steps such as biohydrolysis, bioesterification and fractional distillation.Abstract:
The isolation of tocopherols and sterols together as a concentrate from sunflower oil deodorizer distillate was investigated. The sunflower oil deodorizer distillate was composed of 24.9% unsaponifiable matter with 4.8% tocopherols and 9.7% sterols, 28.8% free fatty acid (FFA) and 46.3% neutral glycerides. The isolation technology included process steps such as biohydrolysis, bioesterification and fractional distillation. The neutral glycerides of the deodorizer distillates were hydrolyzed byCandida cylindracea lipase. The total fatty acids (initial FFA plus FFA from neutral glycerides) were converted into butyl esters withMucor miehei lipase. The esterified product was then fractionally distilled in a Claisen-vigreux flask. The first fraction, which was collected at 180–230°C at 1.00 mm of Hg for 45 min, contained mainly butyl esters, hydrocarbons, oxidized products and some amount of free fatty acids. The fraction collected at 230–260°C at 1.00 mm Hg for 15 min was rich in tocopherols (about 30%) and sterols (about 36%). The overall recovery of tocopherols and sterols after hydrolysis, esterification and distillation were around 70% and 42%, respectively, of the original content in sunflower oil deodorizer distillate.read more
Citations
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Journal ArticleDOI
Viscosities of Binary and Ternary Mixtures of Hexadecanoic, Octadecanoic, and cis-9-Octadecenoic Acids
TL;DR: In this article, the kinematic viscosity of binary and ternary liquid mixtures for hexadecanoic, octadecanic, and cis-9 octadecenoic acids was measured at temperatures ranging from above the solidification point up to 373 K using a Cannon Fenske three-capillary viscosimeter.
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Use of a plant oil product as an agent for increasing the synthesis of skin lipids
TL;DR: In this paper, the use of a plant oil product as an agent for increasing the synthesis of skin lipids, especially the lipids of the epidermal skin barrier, in or for the preparation of a cosmetic, pharmaceutical or dermatological composition.
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Process for the preparation of polyamides
Setsuo Sato,Hercules Peloggia,Tracy K. Hunt,Joerg Schwarzer,Ramiro Carielo Bueno,Roger A. Lovald +5 more
TL;DR: In this article, a process for the preparation of polyamides comprising the steps of reacting a soybean oil condensate obtained from the deodorization of refined soybeanoil and which contains less than 30% by weight of free and esterified oleic acid based on the total weight of fatty acids in said condensates, with a C 1-4 alkanol in the presence of a zinc oxide catalyst to convert free fatty acids and fatty acid glyceride esters to fatty acid C 1 -4 alkyl esters, removing excess C 1
Journal ArticleDOI
Optimisation of enzymatic pretreatment of soybean oil deodoriser distillate for concentration of tocopherols.
TL;DR: In this paper, enzymatic esterification of FFAs in soybean oil deodoriser distillate for concentration of tocopherols was shown to be a technically viable process.
Book ChapterDOI
Extraction and Enzymatic Modification of Functional Lipids from Soybean Oil Deodorizer Distillate
TL;DR: Fernandes et al. as mentioned in this paper described several procedures to isolate bioactive compounds from soybean oil deodorizer distillate to improve the value and the quality of this byproduct.
References
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Journal ArticleDOI
Enzymatic pretreatment of deodorizer distillate for concentration of sterols and tocopherols
Suresh Ramamurthi,A.R. McCurdy +1 more
TL;DR: In this article, a model mixture of pure oleic acid and dl-α-tocopherol was used to study any potential side reactions that may lower the tocopherol content during the esterification reaction.
Journal ArticleDOI
Concentration of tocopherols from soybean sludge by supercritical carbon dioxide
TL;DR: In this paper, the feasibility and technical merits of supercritical fluid extraction (SFE) as a potential alternative to molecular distillation for enriching tocopherols effectively from soybean sludge were examined.
Journal ArticleDOI
Separation and concentration of natural antioxidants from the rape of olives.
Fayad Z. Sheabar,Ishak Neeman +1 more
TL;DR: In this article, polyphenols were extracted from the rape of Israeli olive oil using hexane, acetone and ethanol in a simple sequential procedure yielding three fractions (A,B,C).
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