Results 21 to 30 of about 10,853 (215)

Evaluation of Cellular Uptake and Removal of Chlorpropham in the Treatment of Dunaliella salina for Phytoene Production

open access: yesMarine Drugs, 2022
Chlorpropham is a carbamate herbicide that inhibits cell division and has been widely used as a potato sprout suppressant. Recently we showed that the microalga Dunaliella salina treated with chlorpropham massively accumulated the colourless carotenoids ...
Laura Mazzucchi   +2 more
doaj   +1 more source

Stereoisomers of Colourless Carotenoids from the Marine Microalga Dunaliella salina

open access: yesMolecules, 2020
Carotenoids comprise a diverse range of naturally occurring stereoisomers, which differ in their physico-chemical properties. Their biosynthesis begins with phytoene, which is a rarity among carotenoids because it is colourless.
Laura Mazzucchi   +2 more
doaj   +1 more source

Sulfur-Containing Compounds: Natural Potential Catalyst for the Isomerization of Phytofluene, Phytoene and Lycopene in Tomato Pulp

open access: yesFoods, 2021
The effects of some sulfur-containing compounds on the isomerization and degradation of lycopene, phytofluene, and phytoene under different thermal treatment conditions were studied in detail.
Lulu Ma   +5 more
doaj   +1 more source

Safety of yellow/orange tomato extract as a novel food pursuant to Regulation (EU) 2015/2283

open access: yesEFSA Journal, 2023
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on yellow/orange tomato extract used as a novel food (NF) pursuant to Regulation (EU) 2283/2015.
EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA)   +29 more
doaj   +1 more source

Perturbations in the Carotenoid Biosynthesis Pathway in Tomato Fruit Reactivate the Leaf-Specific Phytoene Synthase 2

open access: yesFrontiers in Plant Science, 2022
The accumulation of the red carotenoid pigment lycopene in tomato (Solanum lycopersicum) fruit is achieved by increased carotenoid synthesis during ripening.
Uri Karniel   +3 more
doaj   +1 more source

Intragenic enhancers and suppressors of phytoene desaturase mutations in Chlamydomonas reinhardtii. [PDF]

open access: yesPLoS ONE, 2012
Photosynthetic organisms synthesize carotenoids for harvesting light energy, photoprotection, and maintaining the structure and function of photosynthetic membranes.
Phoi T Tran   +4 more
doaj   +1 more source

The stereospecific biosynthesis of phytoene and polyunsaturated carotenes [PDF]

open access: yesBiochemical Journal, 1967
1. The incorporation of [2-(14)C,(5R)-5-(3)H(1)]mevalonic acid and [2-(14)C,5-(3)H(2)]-mevalonic acid into phytoene, phytofluene, zeta-carotene, neurosporene, alpha-, beta-, gamma- and delta-carotene and lycopene by slices of fruit from two tomato mutants (delta and tangerine) and into alpha- and beta-carotene by bean leaves has been studied. 2. In the
R J, Williams   +3 more
openaire   +2 more sources

Application of 5-aminolevulinic acid promotes ripening and accumulation of primary and secondary metabolites in postharvest tomato fruit

open access: yesFrontiers in Nutrition, 2022
5-Aminolevulinic acid (ALA) plays a vital role in promoting plant growth, enhancing stress resistance, and improving fruit yield and quality. In the present study, tomato fruits were harvested at mature green stage and sprayed with 200 mg L–1 ALA on ...
Junwen Wang   +10 more
doaj   +1 more source

Stereochemistry of phytoene biosynthesis by isolated chloroplasts [PDF]

open access: yesBiochemical Journal, 1969
The incorporation of [2−14C,(5R)-5−3H1]MVA* and [2−14C,5−3H2]MVA into geranylgeraniol and phytoene by a preparation of ‘non-aqueous’ bean leaf chloroplasts has been studied. In the formation of phytoene from two molecules of geranylgeranyl pyrophosphate, the loss of hydrogen is stereospecific, the hydrogen atom lost from C-1 of each molecule of ...
M J, Buggy, G, Britton, T W, Goodwin
openaire   +2 more sources

Potential of golden potatoes to improve vitamin A and vitamin E status in developing countries. [PDF]

open access: yesPLoS ONE, 2017
Potato (Solanum tuberosum L.) is the third most widely consumed plant food by humans. Its tubers are rich in starch and vitamin C, but have low or null levels of essential nutrients such as provitamin A and vitamin E.
Chureeporn Chitchumroonchokchai   +4 more
doaj   +1 more source

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