Academic literature on the topic '-apocarotenoids'

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Journal articles on the topic "-apocarotenoids"

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Zoccali, Mariosimone, Daniele Giuffrida, Fabio Salafia, et al. "First Apocarotenoids Profiling of Four Microalgae Strains." Antioxidants 8, no. 7 (2019): 209. http://dx.doi.org/10.3390/antiox8070209.

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Both enzymatic or oxidative carotenoids cleavages can often occur in nature and produce a wide range of bioactive apocarotenoids. Considering that no detailed information is available in the literature regarding the occurrence of apocarotenoids in microalgae species, the aim of this study was to study the extraction and characterization of apocarotenoids in four different microalgae strains: Chlamydomonas sp. CCMP 2294, Tetraselmis chuii SAG 8-6, Nannochloropsis gaditana CCMP 526, and Chlorella sorokiniana NIVA-CHL 176. This was done for the first time using an online method coupling supercrit
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Shi, Jianan, Chao Cao, Jiayu Xu, and Chunhua Zhou. "Research Advances on Biosynthesis, Regulation, and Biological Activities of Apocarotenoid Aroma in Horticultural Plants." Journal of Chemistry 2020 (May 4, 2020): 1–11. http://dx.doi.org/10.1155/2020/2526956.

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Apocarotenoids, which play important roles in the growth and development of horticultural plants, are produced by the action of carotenoid cleavage oxygenase (CCO) family members or nonenzymatic cleavage actions. Apocarotenoids are commonly found in leaves, flowers, and fruits of many horticultural plants and participate in the formation of pigments, flavors, hormones, and signaling compounds. Some of them are recognized as important aroma components of fruit and flower with aromatic odor, such as βß-ionone, β-damascenone, and 6-methyl-5-hepten-2-one in tomato fruit, and have low odor threshol
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Mogg, Trevor J., та Graham W. Burton. "The β-carotene–oxygen copolymer: its relationship to apocarotenoids and β-carotene function". Canadian Journal of Chemistry 99, № 9 (2021): 751–62. http://dx.doi.org/10.1139/cjc-2021-0006.

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β-carotene spontaneously copolymerizes with molecular oxygen to form a β-carotene–oxygen copolymer compound (“copolymer”) as the main product, together with small amounts of many apocarotenoids. Both the addition and scission products are interpreted as being formed during progression through successive free radical β-carotene–oxygen adduct intermediates. The product mixture from full oxidation of β-carotene, lacking both vitamin A and β-carotene, has immunological activities, some of which are derived from the copolymer. However, the copolymer’s chemical makeup is unknown. A chemical breakdow
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Cooperstone, Jessica L., Janet A. Novotny, Ken M. Riedl, et al. "Limited appearance of apocarotenoids is observed in plasma after consumption of tomato juices: a randomized human clinical trial." American Journal of Clinical Nutrition 108, no. 4 (2018): 784–92. http://dx.doi.org/10.1093/ajcn/nqy177.

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Abstract Background Nonvitamin A apocarotenoids occur in foods. Some function as retinoic acid receptor antagonists in vitro, though it is unclear if apocarotenoids are absorbed or accumulate to levels needed to elicit biological function. Objective The aim of this study was to quantify carotenoids and apocarotenoids (β-apo-8′-, -10′-, -12′-, and -14′-carotenal, apo-6′-, -8′-, -10′-, -12′-, and -14′-lycopenal, retinal, acycloretinal, β-apo-13-carotenone, and apo-13-lycopenone) in human plasma after controlled consumption of carotenoid-rich tomato juices. Design Healthy subjects (n = 35) consum
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Harrison, Earl H. "Carotenoids, β-Apocarotenoids, and Retinoids: The Long and the Short of It". Nutrients 14, № 7 (2022): 1411. http://dx.doi.org/10.3390/nu14071411.

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Naturally occurring retinoids (retinol, retinal, retinoic acid, retinyl esters) are a subclass of β-apocarotenoids, defined by the length of the polyene side chain. Provitamin A carotenoids are metabolically converted to retinal (β-apo-15-carotenal) by the enzyme β-carotene-15,15′-dioxygenase (BCO1) that catalyzes the oxidative cleavage of the central C=C double bond. A second enzyme β-carotene-9′-10′-dioxygenase cleaves the 9′,10′ bond to yield β-apo-10′-carotenal and β-ionone. Chemical oxidation of the other double bonds leads to the generation of other β-apocarotenals. Like retinal, some of
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Llanos, Gabriel G., Rosa M. Varela, Ignacio A. Jiménez, José M. G. Molinillo, Francisco A. Macías, and Isabel L. Bazzocchi. "Metabolites from Withania aristata with Potential Phytotoxic Activity." Natural Product Communications 5, no. 7 (2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500712.

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A series of apocarotenoids (1-8) and one carotenoid (9) were isolated from the leaves of Withania aristata. In addition, the tetraacetylated apocarotenoid glucosides 10-12 were obtained by acetylation, with derivative 9-hydroxymegastigma-4,6 E-dien-3-one 9- O-β-D-glucopyranoside tetraacetate (10) being described for the first time. The structures have been determined by spectroscopic and spectrometric means, mainly NMR and ESIMS, and comparison with data reported in the literature. These metabolites were evaluated on a systematic phytotoxicity assay using the etiolated wheat coleoptile bioassa
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Zoccali, Mariosimone, Daniele Giuffrida, Roberta Granese, Fabio Salafia, Paola Dugo, and Luigi Mondello. "Determination of free apocarotenoids and apocarotenoid esters in human colostrum." Analytical and Bioanalytical Chemistry 412, no. 6 (2020): 1335–42. http://dx.doi.org/10.1007/s00216-019-02359-z.

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Daruwalla, Anahita, Jianye Zhang, Ho Jun Lee, et al. "Structural basis for carotenoid cleavage by an archaeal carotenoid dioxygenase." Proceedings of the National Academy of Sciences 117, no. 33 (2020): 19914–25. http://dx.doi.org/10.1073/pnas.2004116117.

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Apocarotenoids are important signaling molecules generated from carotenoids through the action of carotenoid cleavage dioxygenases (CCDs). These enzymes have a remarkable ability to cleave carotenoids at specific alkene bonds while leaving chemically similar sites within the polyene intact. Although several bacterial and eukaryotic CCDs have been characterized, the long-standing goal of experimentally visualizing a CCD–carotenoid complex at high resolution to explain this exquisite regioselectivity remains unfulfilled. CCD genes are also present in some archaeal genomes, but the encoded enzyme
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Bereczki, Ilona, Henrietta Papp, Anett Kuczmog, et al. "Natural Apocarotenoids and Their Synthetic Glycopeptide Conjugates Inhibit SARS-CoV-2 Replication." Pharmaceuticals 14, no. 11 (2021): 1111. http://dx.doi.org/10.3390/ph14111111.

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The protracted global COVID-19 pandemic urges the development of new drugs against the causative agent SARS-CoV-2. The clinically used glycopeptide antibiotic, teicoplanin, emerged as a potential antiviral, and its efficacy was improved with lipophilic modifications. This prompted us to prepare new lipophilic apocarotenoid conjugates of teicoplanin, its pseudoaglycone and the related ristocetin aglycone. Their antiviral effect was tested against SARS-CoV-2 in Vero E6 cells, using a cell viability assay and quantitative PCR of the viral RNA, confirming their micromolar inhibitory activity again
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Murador, Daniella C., Fabio Salafia, Mariosimone Zoccali, et al. "Green Extraction Approaches for Carotenoids and Esters: Characterization of Native Composition from Orange Peel." Antioxidants 8, no. 12 (2019): 613. http://dx.doi.org/10.3390/antiox8120613.

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Orange peel is a by-product produced in large amounts that acts as a source of natural pigments such as carotenoids. Xanthophylls, the main carotenoid class found in citrus fruit, can be present in its free form or esterified with fatty acids, forming esters. This esterification modifies the compound’s chemical properties, affecting their bioavailability in the human body, and making it important to characterize the native carotenoid composition of food matrices. We aimed to evaluate the non-saponified carotenoid extracts of orange peel (cv. Pera) obtained using alternative green approaches: e
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Dissertations / Theses on the topic "-apocarotenoids"

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Eroglu, Abdulkerim. "APOCAROTENOIDS MODULATE RETINOID RECEPTORS." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338314466.

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Durojaye, Boluwatiwi Olalekan. "Intestinal and Hepatic Metabolism of Selected Apocarotenoids and Retinoids." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1606925784371433.

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Brown, Emily Lauren. "Regulation of Peroxisome Proliferator-Activated Receptor Alpha by Selected Beta-Apocarotenoids." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1275401911.

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Durojaye, Boluwatiwi Olalekan. "β-Apocarotenoids: Occurrence in Cassava Biofortified with β-Carotene and Mechanisms of Uptake in Caco-2 Intestinal Cells". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1436781210.

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Fleshman, Matthew Kintz. "β-Carotene Absorption and Metabolism". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313548706.

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Oliveira, Junior Raimundo Gonçalves de. "Sensibilisation de cellules de mélanome à la chimiothérapie par des flavonoïdes et caroténoïdes extraits de plantes du Brésil, de Nouvelle-Calédonie et de microalgues marines." Thesis, La Rochelle, 2020. http://www.theses.fr/2020LAROS007.

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Le mélanome métastatique est une forme agressive de cancer évoluant rapidement du fait de résistances aux anticancéreux. Cette thèse étudie l’hypothèse que des molécules purifiées de plantes ou microalgues marines peuvent améliorer l’efficacité de médicaments anti-mélanome en sensibilisant les cellules cancéreuses à la chimiothérapie. Après une revue des études consacrées à la chimiosensibilisation par des molécules naturelles, nous avons sélectionné des plantes du Brésil et de Nouvelle-Calédonie (Bixa orellana et Gardenia oudiepe) ainsi que des microalgues marines (Rhodomonas salina et Tisoch
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Guo, Jingfei. "Crystallization of polymorphs a case study on astaxanthin and apocarotenoic ester." Aachen Shaker, 2009. http://d-nb.info/99883551X/04.

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Hou, Xin. "Hunting for carotenoid-derived retrograde signals that regulate plastid development." Phd thesis, Canberra, ACT : The Australian National University, 2018. http://hdl.handle.net/1885/143928.

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In plants, carotenoids are essential for photosynthesis and photoprotection. However, carotenoids are not the end-products of the pathway: apocarotenoids are produced by carotenoid cleavage dioxygenases (CCDs) or non-enzymatic processes. Apocarotenoids are more soluble or volatile than carotenoids, but they are not simply breakdown products as there can be modifications post cleavage and functions include hormones, volatiles or signals. Evidence is emerging for a class of apocarotenoids herein referred to as Apocarotenoid Signals (ACSs) that have regulat
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Sui, Xuewu. "Structural and biochemical insights into catalytic mechanisms of carotenoid cleavage oxygenases." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1473258604663537.

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Wang, Jian You. "Zaxinone, a Natural Apocarotenoid, Regulates Growth and Strigolactone Biosynthesis in Rice." Diss., 2021. http://hdl.handle.net/10754/667041.

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Carotenoids are the precursor of several metabolites with regulatory functions, which include the plant hormones abscisic acid (ABA) and strigolactones (SLs), and signaling molecules, such as β-cyclocitral. These carotenoid-derivatives originate from oxidative breakdown of the double bond resulting in carbonyl cleavage-products designated as apocarotenoids. The cleavage reaction causing apocarotenoid formation is catalyzed frequently by Carotenoid Cleavage Dioxygenases (CCDs). Several lines of evidence indicate the presence of yet unidentified apocarotenoids with regulatory or signaling functi
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Books on the topic "-apocarotenoids"

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Baba, Shoib Ahmad, and Nasheeman Ashraf. Apocarotenoids of Crocus sativus L: From biosynthesis to pharmacology. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1899-2.

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Ramamoorthy, Siva, Renata Rivera Madrid, and C. George Priya Doss. Biology, Chemistry and Applications of Apocarotenoids. Taylor & Francis Group, 2020.

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Ramamoorthy, Siva, Renata Rivera Madrid, and C. George Priya Doss. Biology, Chemistry and Applications of Apocarotenoids. Taylor & Francis Group, 2020.

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Ramamoorthy, Siva, Renata Rivera Madrid, and C. George Priya Doss. Biology Chemistry and Applications of Apocarotenoids. Taylor & Francis Group, 2020.

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Ramamoorthy, Siva, Renata Rivera Madrid, and C. George Priya Doss. Biology, Chemistry and Applications of Apocarotenoids. Taylor & Francis Group, 2020.

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Biology, Chemistry and Applications of Apocarotenoids. Taylor & Francis Group, 2020.

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Baba, Shoib Ahmad, and Nasheeman Ashraf. Apocarotenoids of Crocus Sativus l: From Biosynthesis to Pharmacology. Springer London, Limited, 2016.

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Baba, Shoib Ahmad, and Nasheeman Ashraf. Apocarotenoids of Crocus Sativus l: From Biosynthesis to Pharmacology. Springer, 2016.

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Carotenoids: Biological Functions of Carotenoids and Apocarotenoids in Natural and Artificial Systems. Elsevier, 2022. http://dx.doi.org/10.1016/s0076-6879(22)x0014-1.

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Wurtzel, Eleanore. Carotenoids: Biological Funcations of Carotenoids and Apocarotenoids in Natural and Artificial Systems. Elsevier Science & Technology Books, 2022.

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Book chapters on the topic "-apocarotenoids"

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Ilyas, Madiha, Faraz Ali Rana, and Muhammad Riaz. "Apocarotenoids." In Carotenoids: Structure and Function in the Human Body. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-46459-2_4.

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Cárdenas-Conejo, Yair, and Edith E. Uresti-Rivera. "Anticarcinogenic Effect of Apocarotenoids." In Biology, Chemistry, and Applications of Apocarotenoids. CRC Press, 2020. http://dx.doi.org/10.1201/9780429344206-8.

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Rambla, José L., and Antonio Granell. "Determination of Plant Volatile Apocarotenoids." In Methods in Molecular Biology. Springer US, 2019. http://dx.doi.org/10.1007/978-1-4939-9952-1_12.

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Aguilar-Espinosa, Margarita, Víctor Manuel Carballo-Uicab, and Renata Rivera-Madrid. "Biology and Chemistry of Apocarotenoids." In Biology, Chemistry, and Applications of Apocarotenoids. CRC Press, 2020. http://dx.doi.org/10.1201/9780429344206-1.

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Kapoor, Leepica, and Siva Ramamoorthy. "Apocarotenoids: Natural Anti-Ageing Agents." In Biology, Chemistry, and Applications of Apocarotenoids. CRC Press, 2020. http://dx.doi.org/10.1201/9780429344206-5.

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Beltran, Juan Camilo Moreno, and Claudia Stange. "Apocarotenoids: A New Carotenoid-Derived Pathway." In Subcellular Biochemistry. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39126-7_9.

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Baba, Shoib Ahmad, and Nasheeman Ashraf. "Pharmacological Importance of Crocus sativus Apocarotenoids." In Apocarotenoids of Crocus sativus L: From biosynthesis to pharmacology. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1899-2_3.

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Baldermann, Susanne, Masayoshi Yamamoto, Ziyin Yang, Tatsuya Kawahashi, Kazuyoshi Kuwano, and Naoharu Watanabe. "C13-Apocarotenoids: More than Flavor Compounds?" In ACS Symposium Series. American Chemical Society, 2013. http://dx.doi.org/10.1021/bk-2013-1134.ch007.

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Dzib-Cauich, Jonathan, Rosa Us-Camas, and Renata Rivera-Madrid. "Natural Sources of Apocarotenoids and Their Applications." In Biology, Chemistry, and Applications of Apocarotenoids. CRC Press, 2020. http://dx.doi.org/10.1201/9780429344206-2.

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Walter, Michael H. "C13 α-Ionol (Blumenol) Glycosides and C14 Mycorradicin: Apocarotenoids Accumulating in Roots during the Arbuscular Mycorrhizal Symbiosis." In Biology, Chemistry, and Applications of Apocarotenoids. CRC Press, 2020. http://dx.doi.org/10.1201/9780429344206-10.

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