Results 81 to 90 of about 4,479 (218)

Evaluation of a simple and sensitive sensory method for measuring rancidity in soybean oils

open access: yesGrasas y Aceites, 2006
The purpose of this study was to evaluate the efficacy of the 2 Alternative Forced Choice (2-AFC) sensory method in detecting rancidity in soybean oils. Additionally, correlations between the physico-chemical quality and the sensory attributes of edible ...
J. R. López-Aguilar   +5 more
doaj   +1 more source

Controlling Argan Seed Quality by NIR [PDF]

open access: yes, 2015
The suitability of using visible/near infrared spectroscopy (Vis/NIR), as a rapid and non-destructive technique for monitoring the quality of argan seeds (Argania spinosa Skeels) was studied.
Benaissa, Mohamed   +4 more
core   +1 more source

The Impact of Pyropheophytin a (PPP) and 1,2‐Diacylglycerols (DAGs) on Extra Virgin Olive Oil Quality and Shelf Life

open access: yesJournal of the American Oil Chemists' Society, Volume 102, Issue 8, Page 1185-1200, August 2025.
ABSTRACT The quality and shelf life of extra virgin olive oil (EVOO) are pivotal to its marketability and consumer satisfaction. This study evaluated how pyropheophytin a (PPP) and 1,2‐diacylglycerols (DAGs) changed for different varieties of EVOO over a 24‐month storage period under varying temperature conditions (16°C, 18°C, and 20°C).
Xueqi Li   +6 more
wiley   +1 more source

Synthesis and antioxidant activity of two novel tetraphenolic compounds derived from toluhydroquinone and tertiary butylhydroquinone

open access: yesGrasas y Aceites, 2014
Two novel compounds bearing four hydroxyphenyl groups were synthesized by the acid-catalyzed condensation reaction of glyoxal with toluhydroquinone (THQ) or tertiary butylhydroquinone (TBHQ), respectively.
Z. W. Jiang   +4 more
doaj   +1 more source

Lignin Extraction from Various Biomass Sources: A Comprehensive Review of Characteristics, Applications, and Future Prospects

open access: yesThe Chemical Record, Volume 25, Issue 8, August 2025.
Lignin, a major byproduct of various agricultural waste, plays a key role in advancing a sustainable circular economy. There are several challenges faced during lignin extraction due to its complex structure and strong bond in the lignocellulosic biomass matrix.
Alaa A. Dandash   +2 more
wiley   +1 more source

Influence of the Rancimat parameters on the determination of oxidative stability index of Sesamum Indicum L. Oil

open access: yesScientia Agropecuaria, 2013
The objective of this research was to determine the oxidative stability index (OSI) in virgin oil seed Sesamum indicum L. (Sesame) previously extracted by cold pressing, clarified by centrifugation and stored under nitrogen atmosphere and cooling on. The
Eudes Villanueva López   +2 more
doaj   +1 more source

Analyses phytochimiques et propriétés des composés bioactifs: amélioration d’une huile végétale par incorporation des extraits de plantes steppiques [PDF]

open access: yes, 2017
La multitude de structures phénoliques qui pourraient être contenus dans un matériel végétal donné, ainsi que leur teneur élevée en polyphénols totaux, permet leur utilisation en tant que facteurs antioxydants efficaces pour les corps gras.
Barros, Lillian   +3 more
core  

Monitoring olive oils quality and oxidative resistance during storage using an electronic tongue [PDF]

open access: yes, 2016
"Available online 4 July 2016"Monitoring olive oils oxidative stability and quality parameters (free acidity, peroxide values, K232 and K270 extinction coefficients) is needed to guarantee that, during storage, their levels remain within the legal ...
Dias, Luís G.   +4 more
core   +1 more source

Oilseed‐based metabolic engineering of astaxanthin and related ketocarotenoids using a plant‐derived pathway: Lab‐to‐field‐to‐application

open access: yesPlant Biotechnology Journal, Volume 23, Issue 8, Page 3451-3464, August 2025.
Summary Ketocarotenoids, including astaxanthin, are red lipophilic pigments derived from the oxygenation of β‐carotene ionone rings. These carotenoids have exceptional antioxidant capacity and high commercial value as natural pigments, especially for aquaculture feedstocks to confer red flesh colour to salmon and shrimp.
Hyojin Kim   +11 more
wiley   +1 more source

Late laying hens deposit dietary antioxidants preferentially in the egg and not in the body [PDF]

open access: yes, 2017
The allocation of nutrients in the metabolism of laying hens favors the egg over the body. It is unclear whether this programming also includes micronutrients and antioxidants.
Kreuzer, M.   +2 more
core   +1 more source

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