European Journal of Lipid Science and Technology

Cover image for Vol. 117 Issue 11

Edited By: Uwe T. Bornscheuer

Impact Factor: 1.812

ISI Journal Citation Reports © Ranking: 2014: 43/123 (Food Science & Technology); 54/77 (Nutrition & Dietetics)

Online ISSN: 1438-9312

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  1. A comparative study on microstructure, texture, rheology, and crystallization kinetics of palm-based diacylglycerol oils and corresponding palm-based oils

    Yayuan Xu, Changqing Wei, Xiaoqing Zhao, Chen Lu and Cao Dong

    Article first published online: 26 NOV 2015 | DOI: 10.1002/ejlt.201500369

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    Palm based diacylglycerol (P-DAG) oils were produced from palm stearin, palm mid fraction, palm oil, and palm olein. A comprehensive information on solid fat content, crystallization properties, rheology, hardness, and microstructure of P-DAG oils were conducted in comparison with corresponding palm based oils (P-oils). Summarily, substantial differences in these properties of P-DAG oils were detected compared to corresponding P-oils.

  2. Amounts of the reactive aldehydes, malonaldehyde, 4-hydroxy-2-hexenal, and 4-hydroxy-2-nonenal in fresh and oxidized edible oils do not necessary reflect their peroxide and anisidine values

    Michèle Viau, Claude Genot, Lucie Ribourg and Anne Meynier

    Article first published online: 26 NOV 2015 | DOI: 10.1002/ejlt.201500103

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    MDA, 4-HNE, and 4-HHE were quantified in fresh and oxidized rapeseed, sunflower (S), kiwiseed (K) and tuna oils (T), together with classical (R) markers such as PV or CD. In fresh oils, MDA ranged from 0.6 up to 29 µmol kg−1 oil, whereas 4-HNE and 4-HHE were closed to 1 µmol kg−1 oil whatever the oil, excepted in fresh kiwiseed oil (3.3 µmol kg−1 oil). MDA was the major secondary product in highly oxidized oils except in sunflower oil. Its quantities ranged from 100 µmol kg−1 in sunflower up to 1.1 mmol kg−1 in kiwiseed oil. 4-HNE is the major secondary product in sunflower oil (170 µmol kg−1), while 4-HHE ranged from 120 to 150 µmol kg−1 in n-3 containing oils. The evolution of marker profiles is oil-specific.

  3. In vitro characterization of five bacterial WS/DGAT acyltransferases regarding the synthesis of biotechnologically relevant short-chain-length esters

    Annika Röttig, Sebastian Wolf and Alexander Steinbüchel

    Article first published online: 26 NOV 2015 | DOI: 10.1002/ejlt.201500200

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    The physiological substrates of bacterial WS/DGAT enzymes are medium- to long-chain length acyl-CoAs and fatty alcohols to synthesize medium- to long-chain length wax esters. In this study, we investigated five different bacterial WS/DGATs for their ability to synthesize short-chain length esters, which represent biotechnologically interesting compounds. The enzymes AtfA, AtfA(G355I), Ma1(A360I), WS2, and AtfA1 were selected, purified, and characterized in vitro. In addition to the reference substrates, hexadecanol and palmitoyl-CoA, their activity with dodecanol, ethanol, or methanol, on the one hand, and lauryl-CoA, butyryl-CoA, 3-hydroxybutyryl-CoA, or 2-hydroxyisobutyryl-CoA, on the other hand, were studied and compared.

  4. Squalene in virgin olive oil: Screening of variability in olive cultivars

    Gabriel Beltrán, Maria E. Bucheli, Maria P. Aguilera, Angjelina Belaj and Antonio Jimenez

    Article first published online: 25 NOV 2015 | DOI: 10.1002/ejlt.201500295

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    Virgin Olive Oil squalene content show a significant genetic variability.

  5. Increase of antioxidant activity of brined olives (Carolea cv.) thermally treated in different packaging types

    Piscopo Amalia, De Bruno Alessandra, Zappia Angela and Poiana Marco

    Accepted manuscript online: 24 NOV 2015 12:05AM EST | DOI: 10.1002/ejlt.201500338