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Showing 1 to 13 of 13 for “"Plant pigments"”.
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Fluorescence and Scattering of Light by Plant Pigments
Made available in DSpace on 2015-05-12T17:03:34Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0018165.PDF: 5966985 bytes, checksum: 39910b501d1bb44f8395106cf1e7ff9c (MD5) Previous issue date: 1956
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A Study of the Role of Hydroperoxides in the Degradation and Stabilisation of Polymers
… of these complexes as well as nitrobenzene and plant pigments as photoactivators in the autoxidation of natural rubber was looked into. The mechanism of action of nitrobenzene in natural rubber was found to be due to the generation of singlet oxygen; the latter causing depolymerisation of the …
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Analysis of T-2 Toxin in Feed and Animal Specimens
… and precipitate proteinaceous compounds, plant pigments and other extraneous materials. The T-2 toxin was selectively partitioned into the benzene fraction, which was washed with 1% potassium hydroxide to remove acidic compounds. Other extraneous materials were removed by silica gel column …
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Engineering of polyphenol metabolism in tomatoes to enhance anti-cancer activities
Anthocyanins are polyphenolic plant pigments that are responsible for much of the attractive colour displays found in many flowers, fruit and vegetables. Anthocyanins are divided into different classes based on the number of hydroxyl groups on their phenyl B-ring and subsequent side chain …
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Side chain decoration of Anthocyanins; Mechanisms and Effects On functionality
Anthocyanins are plant pigments offering a range of colours to fruits and flowers. Many properties of anthocyanins are influenced by the degree and type of side chain modifications. Though much is known about the biosynthesis of anthocyanins and the enzymes involved in side-chain decoration, there …
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Phytochemical diversity and genetics of purple corn
… from sources rich in anthocyanins, red to purple plant pigments. Anthocyanin-rich purple corn is being explored as a potential economical source of natural colorant. Our recent survey of colored corn maize germplasm identified a purple corn landrace, Apache Red (AR), with great pigment variability …
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Organic Carbon Cycling in East China Sea Shelf Sediments: Linkages with Hypoxia
… bulk OC, biomarkers including lignin and plant pigment, black carbon (BC) on ECS sediments sampled in winter 2009 and 2010 in order to study the OC cycling under the influence of natural and anthropogenic disturbance. Low-oxygen tolerant foraminiferal microfossils were analyzed in another …
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Strategies to increase production of betalain pigments and their use as SynBio tools
Betalains are plant pigments showing a wide range of potential applications in the pharmacological, biotechnological and commodity sectors. They are currently being used as natural food colorants, and intermediates of the biosynthetic pathway exhibit important pharmacological properties (e.g. …
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The Isolation and Identification of the Anthocyanin in the Leaves of Oxalis Ortgiessi
… work because the species is an ornamental plant developed for the color of the leaves. Recommendations. Further studies of the flower pigments of Oxalis ortgiessi is needed to see if there are any relationships between leaf and flower pigments. Isloation and identification of pigments in …
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An experimental investigation of coloring matter in flowers of vinca major
… the bark, leaves, fruits. or sap of trees or plants. During the twentieth century -- and just a little before that--great progress has been made in the synthesis of many typical natural coloring matters and the improved technique and novel synthetical methods which will bear upon the general …
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The Identification and Comparison of the Flavonoids in the Flowers of Campanula Rapunculoides L. and Campanula Americana L.
… was used to separate and purify the pigments. Both crude and purified pigments were hydrolyzed and tests run to gain information about the aglycones and attached sugars. A spectrophotometer was used to record the absorption spectra of purified pigments. Findings. Two anthocyanins …
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A Comparison of Vegtation Indices and Conventional Ecotoxicological Plant Growth Metrics to Assess the Lethal and Sublethal Effects of Atrazine on Smooth Cordgrass,'Spartina alterniflora'
… Atrazine targets photosynthetic pathways in plants, disrupting electron transport along the photosystem II pathway (Huber, 1993), often resulting in inhibition of photosynthesis in many plant species. Aquatic microalgae and macrophytes are the most sensitive plant species tested to date …