Search Results

You are looking at 1 - 10 of 200 items for :

  • "carotenoids" x
  • Refine by Access: All Content x
Clear All

.S. 1990 . Cloning of the y1 locus of maize, a gene involved in the biosynthesis of carotenoids . Plant Cell 2 : 867 – 876 . Burri , B.J. 1997 . Beta

Restricted access

carotenoids . Plant Cell 2 : 867 – 876 . Chander , S. , Meng , Y. , Zhang , Y. , Yan , J. , Li , J. 2008 . Comparison of nutritional traits variability in selected

Restricted access

Muntean, E., Rotar, I. (2001): High performance liquid chromatography analysis of carotenoids from Cucurbita maxima Duch. Ex. Lam. fruits. Buletinul USAMV-CN , 55-56 , 208-211. High

Restricted access
Acta Alimentaria
Authors:
C. Cano-Molina
,
A. López-Fernández
,
N. Díaz-González
,
R. González-Barrio
,
N. Baenas
,
M.J. Periago
, and
F.J. García-Alonso

1 Introduction Intake of carotenoids has been correlated with the reduced incidence of several chronic diseases, including type 2 diabetes, cardiovascular diseases, and several types of cancer ( Böhm et al

Open access

Enzyme-assisted extraction of carotenoids from tomato peels of the Bulgarian cultivar “Stela”, one of the most widely used cultivars by the canning industry, was examined in this study. The carotenoid content in raw tomato peels was established by HPLC analysis. A two-step protocol was followed: the tomato peels were first treated with enzymes and then extracted by the use of acetone as a solvent for 30 min at 20±1 °C and solid/liquid ratio of 1:30. The total carotenoid, lycopene, and β-carotene extraction yields were increased by the use of pectinase, cellulase, endo-xylanase, and proteinase enzymes in comparison with the non-enzyme-treated samples. The increase in the extraction yield was affected by the enzymes used, the enzyme concentration, the pretreatment time and temperature. Maximum total carotenoid (55.15 mg/100 g d.w.), β-carotene (35.85 mg/100 g d.w.), and lycopene (15.44 mg/100 g d.w.) extraction yields were obtained in peels pretreated with mixed cellulase (100 U g−1) and endo-xylanase (400 U g−1) for 4 h at 50 °C. Carotenoid recovery by mixed cellulolytic and hemi-cellulolytic enzyme pretreatment of tomato peels is a good approach, which can be used for waste utilization.

Restricted access

Breierová, E., Márová, I., Čertík, M. (2005): The role of the carotenoid pigments in yeast cells under stress conditions. Chem. Listy , 99 , 109–111. Čertík M

Restricted access

Abushita , A., Daood , H.G. & Biacs , P. (2000): Change in carotenoids and antioxidant vitamins in tomato as an effect of varietal and technological factors. J. Agric. Food Chem. , 48 , 2075

Restricted access

The extractable (ASTA) colour retention of four different milled spice paprikas was evaluated at 10, 20, 35, 50, and 60 °C storage temperature. The ASTA colour stability during long-term storage period strongly depended on the temperature, primary handling and drying of the fresh crop, and the applied production technology. The cooled (10 °C) or temperature-controlled (20 °C) conditions appeared to be a reasonable solution to preserve the quality of paprika powder. The kinetics study on the temperature dependence of ASTA colour loss estimated the apparent reaction order, rate constants, predicted half-life times and activation energy. The Q10 approach and shelf life-plot resulted in useful data, which can be suitable for quick and economical evaluation of further spice paprika products.

Restricted access

this assay was 2 mg ml –1 . Phlorotannins content was expressed as mg phloroglucinol equivalent per gram of dry extract (mg PGE/g). 1.5 Carotenoid content The protocol of Gilbert-López and co-workers (2017) was used to determine the total carotenoid

Restricted access

. FASEB J. 1995 9 1551 1558 http://www.astaxanthin.org/carotenoids.htm . (Accessed: 13 January

Restricted access