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Food and Chemical Toxicology, 2022
This study aims to the evaluation of stability and antibacterial properties of the extracted chlorophyll from alfalfa. For this purpose, chlorophylls a and b from alfalfa were extracted by enzymatic and ultrasound methods.
Amir Ahmadi +4 more
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This study aims to the evaluation of stability and antibacterial properties of the extracted chlorophyll from alfalfa. For this purpose, chlorophylls a and b from alfalfa were extracted by enzymatic and ultrasound methods.
Amir Ahmadi +4 more
semanticscholar +1 more source
Canadian Journal of Biochemistry, 1977
Using [14C]chlorophyll a derived from a mutant of wheat lacking chlorophyll b, spinach thylakoids from very young leaves and cucumber thylakoids of irradiated, etiolated cotyledons convert chlorophyll a to b with apparent yields of 19% and 5%, respectively.
S, Aronoff, E, Kwok
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Using [14C]chlorophyll a derived from a mutant of wheat lacking chlorophyll b, spinach thylakoids from very young leaves and cucumber thylakoids of irradiated, etiolated cotyledons convert chlorophyll a to b with apparent yields of 19% and 5%, respectively.
S, Aronoff, E, Kwok
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Simultaneous determination of chlorophyll a and chlorophyll b by derivative spectrophotometry
Analytical and Bioanalytical Chemistry, 2004Chlorophyll a (Chl a) and chlorophyll b (Chl b) plant pigments, which are important in the food industry and are beneficial as environmental pollution indicators, have been extracted with a novel solvent mixture (1:1 v/v acetone-propanol) not containing chloroform and simultaneously determined by first-derivative spectrophotometry.
Ergun, Emel +3 more
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Conversion of Chlorophyll b to Chlorophyll a by Isolated Cucumber Etioplasts
Archives of Biochemistry and Biophysics, 1993Chlorophyllide b was converted to chlorophyll a when incubated with cucumber etioplasts in the presence of phytol, ATP, and MgCl2. Chlorophyll a was identified by retention time on HPLC, absorption, fluorescence, and excitation spectra. It is suggested that the interconversion of chlorophyll a and b plays a significant role in the establishment of the ...
H, Ito, Y, Tanaka, H, Tsuji, A, Tanaka
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Biosynthesis of chlorophyll b and the chlorophyll cycle
Photosynthesis Research, 2002Recent progress in the knowledge of chlorophyll b biosynthesis from chlorophyllide a and reduction of chlorophyll b to chlorophyll a is described. The minireview includes a description of the enzymes involved in these reactions and, where appropriate, of the genes encoding these enzymes.
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Chlorophyll a/b binding-specificity in water-soluble chlorophyll protein
Nature Plants, 2018We altered the chlorophyll (Chl) binding sites in various versions of water-soluble chlorophyll protein (WSCP) by amino acid exchanges to alter their preferences for either Chl a or Chl b. WSCP is ideally suited for this mutational analysis since it forms a tetrameric complex with only four identical Chl binding sites.
Daniel M. Palm +8 more
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Biosynthesis of Chlorophylls a and b in Chlorella vulgaris
Nature, 1960WE have shown that both carbon atoms of glycine were incorporated into chlorophyll a when Chlorella vulgaris was incubated with 14C-glycine for a period of 1 hr. During this period no carbon-14 from the carboxyl group could be detected in chlorophyll b, whereas the incorporation of the carbon from the methylene group was several times higher than in ...
W, BRZESKI, W, RUECKER
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Fluorescence anisotropy of chlorophyll a and chlorophyll b in castor oil
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1989A detailed study of the fluorescence anisotropy of chlorophyll a and chlorophyll b in castor oil is presented. Scanningacross the wavelength of emission the value of the fluorescence anisotropy shows a considerable variation. This indicates that differently polarized emission moments are present.
M. van Gurp, G. van Ginkel, Y.K. Levine
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Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1978
Abstract Chlorophyll a, chlorophyll b and bacteriochlorophyll a were prepared by means of column chromatography with Sephadex LH-20 and diethylaminoethylcellulose. This method provides purified preparations of chlorophylls in about 3 h. To prepare chlorophyll a, blue-green or red algae were used as the starting material.
N, Sato, N, Murata
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Abstract Chlorophyll a, chlorophyll b and bacteriochlorophyll a were prepared by means of column chromatography with Sephadex LH-20 and diethylaminoethylcellulose. This method provides purified preparations of chlorophylls in about 3 h. To prepare chlorophyll a, blue-green or red algae were used as the starting material.
N, Sato, N, Murata
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