𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of free fatty acids and diacylglycerols in native vegetable oils

✍ Scribed by Brühl, Ludger

Publisher
John Wiley and Sons
Year
1997
Weight
503 KB
Volume
99
Category
Article
ISSN
0931-5985

No coin nor oath required. For personal study only.

✦ Synopsis

The analysis of free fatty acids (FFA) and diacylglycerols (DG) by GLC may be used to detect the deacidification of oils. Free fatty acids are removed from the oil during neutralization or physical refining, while the corresponding DG remain in the oil. This will change the ratio of FFA to DG. For analysis, oils with tricaprin as internal standard are silylated and injected on-column onto a short high-temperature capillary column. Extracted oils showed higher amounts of FFA and DG than pressed oils from the same batch of seeds. There are only minor changes in the ratio of FFA to DG according to the yield of pressing or due to washing the oil.

Bestimmung von freien Fettslluren und Diacylglycerolen in rohen Pflanrendlen.

📜 SIMILAR VOLUMES

Comparison of two standard methods for d
Comparison of two standard methods for determination of free fatty acids content in oils extracted from oilseeds and vegetable oils
✍ Stephen J. Kershaw 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 323 KB 👁 2 views

Two standard titrimetric procedures for determination of free fatty acids in vegetable oils and in oils extracted from oilseeds were examined using rapeseed oil, illipe nuts and fat, and groundnuts and groundnut oil as test materials. Both procedures involve dissolution of the fat in an organic solv

The component fatty acids of various sud
The component fatty acids of various sudan vegetable oils
✍ D. N. Grindley 📂 Article 📅 1950 🏛 John Wiley and Sons 🌐 English ⚖ 493 KB 👁 1 views

## Abstract In this paper are recorded the composition of the fatty acids present in the fats from the following materials: __Hyptis spicigera, Luffa cylindrica, Lagenaria vulgaris, Citrullus vulgaris__ (var. inedible melon), __Courbonia virgata__ (Husks and kernels), __Capparis tomentosa__ (kernel

Oxidation of unsaturated fatty acid deri
Oxidation of unsaturated fatty acid derivatives and vegetable oils
✍ Angela Köckritz; Andreas Martin 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 382 KB 👁 1 views

## Abstract The present review reports the current literature of the last 10 years on selective oxidation reactions of fatty acid derivatives and vegetable oils. The work is structured in divisions including epoxidation, radical oxidations, Wacker‐type oxidation, dihydroxylation and C=C double bond

Contribution of trans-Fatty Acids from V
Contribution of trans-Fatty Acids from Vegetable Oils and Margarines to the Belgian Diet
✍ De Greyt, W. ;Radanyi, O. ;Huyghebaert, A. ;Kellens, M. 📂 Article 📅 1996 🏛 John Wiley and Sons ⚖ 404 KB

Nineteen commercial samples of vegetable oils and margarines marketed in Belgium (nine margarines, nineteen vegetable oils), Hungary (seven margarines) and Great-Britain (three margarines) were analyzed by gas-liquid chromatography for their trans-fatty acid (TFA) content. For the vegetable oil samp