Results 91 to 100 of about 197,296 (333)

Carotenoid triplet state formation in Rhodobacter sphaeroides R-26 reaction centers exchanged with modified bacteriochlorophyll pigments and reconstituted with spheroidene [PDF]

, 1993
Triplet state electron paramagnetic resonance (EPR) experiments have been carried out at X-band on Rb. sphaeroides R-26 reaction centers that have been reconstituted with the carotenoid, spheroidene, and exchanged with 132-OH-Zn-bacteriochlorophyll a and
Chynwat, V., Frank, H. A., Hartwich, G., Katheder, Ingrid, Meyer, M., Scheer, Hugo   +5 more
core   +1 more source

Influence of Drying Methods on the Phenolic Content and Antioxidant Properties of Crocus sativus L. Tepals and Leaves By‐Products From Meknes (Morocco)

Chemistry &Biodiversity, EarlyView.
ABSTRACT In recent years, much research has focused on the valorization of Crocus sativus by‐products as sources of bioactive compounds. This study was designed to investigate the impact of two different drying methods, freeze‐drying and air‐drying, on the phenolic content and antioxidant activity of leaves and tepals by‐products from C.
Soukaina Abou‐Wakil, Francesco Cacciola, Fatima Housti, Mohamed Rochd, Roberto Laganà Vinci, Luigi Mondello, Federica Davì, Nicola Micale, Natalizia Miceli, Maria Fernanda Taviano   +9 more
wiley   +1 more source

Analysis of triacylglycerol and phospholipid sn‐positional isomers by liquid chromatographic and mass spectrometric methodologies

Mass Spectrometry Reviews, EarlyView., 2023
Abstract Analysis of triacylglycerol (TG) and phospholipid sn‐positional isomers can be divided into two main categories: (a) direct separation by chromatography or other means such as ion mobility mass spectrometry and (b) quantification of regioisomer ratios by structurally informative fragment ions with mass spectrometric methods.
Mikael Fabritius, Baoru Yang
wiley   +1 more source

Eugenia brasiliensis: Analysis of the Chemical Profile and Evaluation of Cytotoxic Potential

Chemistry &Biodiversity, EarlyView.
Leaves of Eugenia brasiliensis were dried, crushed and macerated with polarity increment. The antiporliferative and anti‐migratory potential and the cell cycle were evaluated. 28 compounds were tentatively identified by mass sceptrometry. ABSTRACT This work evaluated the antiproliferative potential of Eugenia brasiliensis leaf extracts against the HeLa
Giovana G. F. V. de Oliveira, Milena F. Longue, Letícia M. R. Pescinelli, Thiago S. Charret, Thalya S. R. Nogueira, Mariana T. M. Pereira, Ivo J. C. Vieira, Lucas S. Abreu, Vinicius D. B. Pascoal, Aislan C. R. F. Pascoal   +9 more
wiley   +1 more source

Distribution, Biosynthesis, and Function of Carotenoids in Oxygenic Phototrophic Algae

Marine Drugs
For photosynthesis, oxygenic phototrophic organisms necessarily contain not only chlorophylls but also carotenoids. Various carotenoids have been identified in algae and taxonomic studies of algae have been conducted.
Shinichi Takaichi
doaj   +1 more source

Molecular Mechanisms Involved in Biosynthesis and Regulation of Carotenoids in Plants

Journal of Horticultural Sciences, 2016
Carotenoids are coloured compounds beneficial to plants and humans. Some of the major health benefits carotenoids provide include Vitamin A precursors and, antioxidants besides being involved in several physiological functions.
P Shilpa, K V Ravishankar, K S Shivashankara, A T Sadashiva, N Sunil Kumar   +4 more
doaj   +1 more source

Deposition of carotenoids in egg yolk by short-term supplement of coloured carrot (Daucus carota) varieties as forage material for egg-laying hens [PDF]

, 2010
BACKGROUND: Supplying egg-laying hens with different forage materials may influence egg production and quality. The aim of this study was to examine the short-term effects of standard feed plus 70 g day−1 per hen of three coloured carrot varieties ...
Hammershoj, Marianne, Kidmose, Ulla, Steenfeldt, Sanna   +2 more
core  

Brazilian Biomes as Promising Resources of Rhodotorula Yeasts for the Biotechnological Production of Carotenoids

Chemistry &Biodiversity, EarlyView.
ABSTRACT Yeasts belonging to the genus Rhodotorula are capable of synthesizing carotenoids, such as β‐carotene, γ‐carotene, torulene, torularodine, and astaxanthin. These carotenoids have been shown to offer health benefits to humans, such as immune system strengthening and a reduced risk of chronic degenerative diseases.
David Cristian Rodrigues Lucas, Renan Campos Chisté   +1 more
wiley   +1 more source

Carotenoid Profiling of a Red Seaweed Pyropia yezoensis: Insights into Biosynthetic Pathways in the Order Bangiales

Marine Drugs, 2018
Carotenoids are natural pigments that contribute to light harvesting and photo-protection in photosynthetic organisms. In this study, we analyzed the carotenoid profiles, including mono-hydroxy and epoxy-carotenoids, in the economically valuable red ...
Jiro Koizumi, Naoki Takatani, Noritoki Kobayashi, Koji Mikami, Kazuo Miyashita, Yumiko Yamano, Akimori Wada, Takashi Maoka, Masashi Hosokawa   +8 more
doaj   +1 more source

Effect of drying and storage on the content of provitamin a of orange fleshed sweet potato (Ipomoa batatas) : Direct sun radiations do not have significant impact [PDF]

, 2007
The retention of pro-vitamin A was determined on Orange Fleshed Sweetpotato after drying and storage. Preliminary trials were undertaken to compare various dryers in France (sun, solar and indoor-cross flow dryers) and to optimise and assess carotenoid ...
Bechoff, Aurélie, Dhuique-Mayer, Claudie, Dufour, Dominique, Marouzé, Claude, Menya, Geoffrey, Owori, Constance, Tomlins, Keith I., Westby, Andrew   +7 more
core