نتایج جستجو برای: seed weight)and anti¬oxidant (carotenoids

تعداد نتایج: 174344  

2014
Miran Jang Gun-Hee Kim

Geuk (Momordica cochinchinensis spreng) tropical fruits, which are produced in Jeju Island, Korea, well known for containing high levels of carotenoids and α-tocopherol. In this study, geuk fruits were separated two parts (pulp; yellow-orange and seed aril; red). The extracts of geuk fruits were simultaneously analyzed for carotenoids and α-tocopherol contents using HPLC. The results showed tha...

2017
Beatriz Fernández-Marín Fátima Míguez Leire Méndez-Fernández Agustí Agut José M. Becerril José I. García-Plazaola Ilse Kranner Louise Colville

Carotenoids distribution and function in seeds have been very scarcely studied, notwithstanding their pivotal roles in plants that include photosynthesis and phytohormone synthesis, pigmentation, membrane stabilization and antioxidant activity. Their relationship with tocochromanols, whose critical role in maintaining seed viability has already been evidenced, and with chlorophylls, whose reten...

2015
Marko Obranović Dubravka Škevin Klara Kraljić Milan Pospišil Sandra Neđeral Monika Blekić Predrag Putnik

The objective of this study was to compare the influence of: genotype, environmental conditions and processing methods on levels of tocochromanols carotenoids and chlorophyll after maturation and harvesting in flaxseed oil from four varieties (Altess, Biltstar, Niagara and Oliwin). Oils were produced by cold pressing of dry seeds and seeds that were heated for 30 min at 60 °C. Temperature, suns...

2012
Lessoy T Zoué Micaël E Bédikou Jean T Gonnety Betty M Faulet Sébastien L Niamké

Purpose: To investigate the seed oils of Corchorus olitorius and Hibiscus sabdariffa for their antioxidant and antimicrobial potential. Methods: The physicochemical characteristics of oil of the plant seeds were determined using standard methods while their volatile compounds were analyzed by gas chromatography coupled with mass spectrometery (GC-MS). The antioxidant activity of these oils was ...

Journal: :Food technology and biotechnology 2015
Marko Obranović Dubravka Škevin Klara Kraljić Milan Pospišil Sandra Neđeral Monika Blekić Predrag Putnik

The objective of this study is to compare the influence of genotype, environmental conditions and processing methods after maturation and harvesting of four varieties of flaxseed (Altess, Biltstar, Niagara and Oliwin) on the levels of tocochromanols, carotenoids and chlorophyll in flaxseed oil. Samples were produced by cold pressing of dry seeds and seeds heated for 30 min at 60 °C. Temperature...

2013
Qasim Ali Farooq Anwar Muhammad Ashraf Nazamid Saari Rashida Perveen

This study was carried out to appraise whether or not the exogenous application of a potential osmoprotectant, proline, could ameliorate the adverse effects of drought stress on maize seed and seed oil composition, as well as oil antioxidant activity. Water stress reduced the kernel sugar, oil, protein and moisture contents and most of the seed macro- and micro-elements analyzed in both maize c...

Journal: :Acta biochimica Polonica 2012
Michał Kruczek Adam Swiderski Aleksandra Mech-Nowak Katarzyna Król

Comparative analysis of antioxidant capacity was performed using FRAP and DPPH methods on extracts containing carotenoids acquired from fruits of Sea buckthorn. The examination included nine varieties of Sea buckthorn growing in the comparative cultivation. Conducted analysis allowed to compare the antioxidant capacity with carotenoids content measured with spectrophotometric and HPLC methods. ...

Journal: :Developmental and comparative immunology 2015
A Babin C Saciat M Teixeira J-P Troussard S Motreuil J Moreau Y Moret

The release of reactive oxygen and nitrogen species (ROS and RNS) during the inflammatory response generates damages to host tissues, referred to as immunopathology, and is an important factor in ecological immunology. The integrated antioxidant system, comprising endogenous antioxidant enzymes (e.g. superoxide dismutase SOD, and catalase CAT) and dietary antioxidants (e.g. carotenoids), helps ...

Journal: :BioEssays : news and reviews in molecular, cellular and developmental biology 2009
Lorenzo Pérez-Rodríguez

The antioxidant role of carotenoids in the living organism was proposed as a possible basis for the honesty of carotenoid-based signals. However, recent studies have questioned the relevance of carotenoids as powerful antioxidants in vivo. Current evidence does not seem to support the "antioxidant role" hypothesis, but it does not allow us to reject it either. This paper proposes some steps to ...

Journal: :The Journal of experimental biology 2006
Sophie Bertrand Bruno Faivre Gabriele Sorci

Carotenoid-based signals are thought to be indicators of male quality because they must be obtained from the diet and might thus indicate the ability of individuals to gather high-quality food. However, carotenoids are also known to have important physiological functions as immunoenhancers and antioxidants, and, as such, carotenoid-based sexual traits have also been suggested to reflect the hea...

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