Natural pigments of berries: Functionality and application

Berry Fruit ◽  
2007 ◽  
pp. 117-158
Keyword(s):  
Natural Pigments

POTENTIAL EVALUATION OF YELLOW COTTON (COCHLOSPERMUM REGIUM) PIGMENTS FOR DYE SENSITIZED SOLAR CELLS APPLICATION

2020 ◽  
pp. 16-21
Author(s):  
PHITCHAPHORN KHAMMEE ◽  
YUWALEE UNPAPROM ◽  
UBONWAN SUBHASAEN ◽  
RAMESHPRABU RAMARAJ
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Plant Materials ◽  
Natural Pigments ◽  
Dye Sensitized ◽  
Study Results ◽  
Sensitized Solar Cells

Recently, dye-sensitized solar cells (DSSC) have concerned significant attention attributable to their material preparation process, architectural and environmental compatibility, also low cost and effective photoelectric conversion efficiency. Therefore, this study aimed to use potential plant materials for DSSC. This research presents the extraction of natural pigments from yellow cotton flowers (Cochlospermum regium). In addition, the natural pigments were revealed that outstanding advantages, including a wide absorption range (visible light), easy extraction method, safe, innocuous pigments, inexpensive, complete biodegradation and ecofriendly. Methanol was used as a solvent extraction for the yellow cotton flower. The chlorophylls and carotenoid pigments extractions were estimated by a UV-visible spectrometer. The chlorophyll-a, chlorophyll-b, and carotenoid yield were 0.719±0.061 µg/ml, 1.484±0.107 µg/ml and 7.743±0.141 µg/ml, respectively. Thus, this study results suggested that yellow cotton flowers containing reasonable amounts appealable in the DSSC production.

Natural pigments: Origin and applications in dye sensitized solar cells

2020 ◽  
Author(s):  
Shyam Sunder Sharma ◽  
Khushboo Sharma ◽  
Rajveer Singh ◽  
Subodh Srivastava ◽  
Kunj Bihari Rana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Natural Pigments ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Weitere Anthrachinone aus Digitalis schischkinii, X / Further Anthraquinones from Digitalis schischkinii

1976 ◽  
Vol 31 (7-8) ◽  
pp. 403-407 ◽  
Author(s):  
Sedat Imre ◽  
Aysel Öztunc
Keyword(s):  
Natural Pigments

Abstract Twentyone anthraquinones have been found in the roots of Digitalis schischkinii (Ivan.) of which the following are new natural pigments: 4,5-dihydroxydigitolutein, 5-hydroxy-and 4,5-dihydroxy-nordigitolutein.

Extraction and enrichment of natural pigments from solid samples using ionic liquids and chitosan nanoparticles

2016 ◽  
Vol 1463 ◽  
pp. 32-41 ◽  
Author(s):  
Jing-Jing Xu ◽  
Qin Li ◽  
Jun Cao ◽  
Elisa Warner ◽  
Mingrui An ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Chitosan Nanoparticles ◽  
Solid Samples ◽  
Natural Pigments

scholarly journals Current status of genus Impatiens: Bioactive compounds and natural pigments with health benefits

2021 ◽  
Author(s):  
Eleomar O. Pires ◽  
Cristina Caleja ◽  
Carolina C. Garcia ◽  
Isabel C.F.R. Ferreira ◽  
Lillian Barros
Keyword(s):  
Bioactive Compounds ◽  
Health Benefits ◽  
Current Status ◽  
Natural Pigments

scholarly journals Screening of carotenoid-producing Rhodotorula strains isolated from natural sources

2015 ◽  
Vol 8 (1) ◽  
pp. 34-38 ◽  
Author(s):  
Jana Tkáčová ◽  
Katarína Furdíková ◽  
Tatiana Klempová ◽  
Katarína Ďurčanská ◽  
Milan Čertík
Keyword(s):  
Positive Impact ◽  
Human Life ◽  
Carotenoid Pigments ◽  
High Demand ◽  
Natural Pigments ◽  
Feed Industry ◽  
Food And Feed ◽  
Petri Dishes ◽  
Pigment Accumulation ◽  
Β Carotene

Abstract Carotenoids represent large group of various natural pigments ensuring typical coloration of plants, microorganisms and several animals. It was confirmed by many studies, that consuming these biological active compounds has positive impact for human life. Therefore, they are applied in different industrial fields, such as pharmacy, cosmetic, food, and feed industry. Due to high demand for carotenoids we would like to discover new microorganisms overproducing carotenoids. We focused on yeasts of genus Rhodotorula sp. (forty isolates), that we screened according to growth and carotenoid production on Petri dishes and production media. After cultivation on Petri dishes we selected five strains (denoted as KF-4, KF-6, KF-24, KF-31, KF-104) with interesting pigment production and quick growth. The secondary screening on production media identified KF-104 as the best producer of carotenoid pigments with massive pigment accumulation (1.15 mg/g DCW) and yield (9.69 mg/L). The main carotenoid of KF-104 isolate was β-carotene (35.4 %) with the accumulation of 408.7 μg/g DCW and the yield of 3.4 mg/L. The rest were torularhodin, torulene and γ-carotene (62.7–79.0 %). Production of torularhodin in the cells was low (0.4 to 1.4 mg/L) as was its accumulation in cells (31.2–121.0 μg/g DCW). We continue the experimental analyses of these isolates in order understand differences in the content of individual pigments.

The secodopas, natural pigments in Hygrocybe conica and Amanita muscaria

1991 ◽  
Vol 30 (10) ◽  
pp. 3251-3253 ◽  
Author(s):  
Fernand Terradas ◽  
Hugo Wyler
Keyword(s):  
Amanita Muscaria ◽  
Natural Pigments

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

Marine Drugs ◽  
2018 ◽  
Vol 16 (11) ◽  
pp. 426 ◽  
Author(s):  
Jiro Koizumi ◽  
Naoki Takatani ◽  
Noritoki Kobayashi ◽  
Koji Mikami ◽  
Kazuo Miyashita ◽  
...  
Keyword(s):  
1H Nmr ◽  
Metabolic Pathways ◽  
Pyropia Yezoensis ◽  
Biosynthetic Pathways ◽  
Red Seaweed ◽  
Red Seaweeds ◽  
Natural Pigments ◽  
Photosynthetic Organisms ◽  
Metabolic Products ◽  
Β Carotene

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 seaweed Pyropia yezoensis, to clarify the detailed biosynthetic and metabolic pathways in the order Bangiales. P. yezoensis contained lutein, zeaxanthin, α-carotene, and β-carotene, as major carotenoids in both the thallus and conchocelis stages. Monohydroxy intermediate carotenoids for the synthesis of lutein with an ε-ring from α-carotene, α-cryptoxanthin (β,ε-caroten-3’-ol), and zeinoxanthin (β,ε-caroten-3-ol) were identified. In addition, β-cryptoxanthin, an intermediate in zeaxanthin synthesis from β-carotene, was also detected. We also identified lutein-5,6-epoxide and antheraxanthin, which are metabolic products of epoxy conversion from lutein and zeaxanthin, respectively, by LC-MS and 1H-NMR. This is the first report of monohydroxy-carotenoids with an ε-ring and 5,6-epoxy-carotenoids in Bangiales. These results provide new insights into the biosynthetic and metabolic pathways of carotenoids in red seaweeds.

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