onions

Summary

Summary: Herbaceous biennial plants and their edible bulbs, belonging to the Allium genus.

Top Publications

  1. Ghosh M, Bandyopadhyay M, Mukherjee A. Genotoxicity of titanium dioxide (TiO2) nanoparticles at two trophic levels: plant and human lymphocytes. Chemosphere. 2010;81:1253-62 pubmed publisher
    ..25 mM and above. The study thus confirms the genotoxic potential of TiO(2) nanoparticles in both plant and human lymphocytes...
  2. Kingsley D, Guan D, Hoover D. Pressure inactivation of hepatitis A virus in strawberry puree and sliced green onions. J Food Prot. 2005;68:1748-51 pubmed
    ..of high-pressure processing as an intervention strategy for virus in produce, strawberry puree and sliced green onions were inoculated with > 10(6) PFU of hepatitis A virus and treated with pressures ranging from 225 to 375 ..
  3. Lee J, Mitchell A. Pharmacokinetics of quercetin absorption from apples and onions in healthy humans. J Agric Food Chem. 2012;60:3874-81 pubmed publisher
    ..e., species and cultivar). Dietary sources include onions and apples (i.e., the peel)...
  4. Laird D, Sun Y, Reineke K, Shieh Y. Effective hepatitis A virus inactivation during low-heat dehydration of contaminated green onions. Food Microbiol. 2011;28:998-1002 pubmed publisher
    ..demonstrated the effects of low heat dehydration on inactivating hepatitis A virus (HAV) on contaminated green onions. Inoculated and uninoculated onion samples were dehydrated at target temperatures of 45-65 °C for 20 h...
  5. Galván G, Kuyper T, Burger K, Keizer L, Hoekstra R, Kik C, et al. Genetic analysis of the interaction between Allium species and arbuscular mycorrhizal fungi. Theor Appl Genet. 2011;122:947-60 pubmed publisher
    ..Positive correlation between high number of roots, biomass and large response to AMF in close relatives of onion opens prospects to combine these traits for the development of more robust onion cultivars...
  6. Løkke M, Edelenbos M, Larsen E, Feilberg A. Investigation of volatiles emitted from freshly cut onions (Allium cepa L.) by real time proton-transfer reaction-mass spectrometry (PTR-MS). Sensors (Basel). 2012;12:16060-76 pubmed publisher
    Volatile organic compounds (VOCs) in cut onions (Allium cepa L.) were continuously measured by PTR-MS during the first 120 min after cutting...
  7. Glińska S, Gabara B. The effects of the anthocyanin-rich extract from red cabbage leaves on Allium cepa L. root tip cell ultrastructure. Ecotoxicol Environ Saf. 2011;74:93-8 pubmed publisher
  8. de Rainho C, Kaezer A, Aiub C, Felzenszwalb I. Ability of Allium cepa L. root tips and Tradescantia pallida var. purpurea in N-nitrosodiethylamine genotoxicity and mutagenicity evaluation. An Acad Bras Cienc. 2010;82:925-32 pubmed
    ..T. pallida purpurea did not respond to mutagens with a dose-dependent pattern. In conclusion, our study indicates that the root tips of Allium cepa L. have sensibility to detect NDEA genotoxicity, but not for Trad-SH test...
  9. Lee J, Mitchell A. Quercetin and isorhamnetin glycosides in onion (Allium cepa L.): varietal comparison, physical distribution, coproduct evaluation, and long-term storage stability. J Agric Food Chem. 2011;59:857-63 pubmed publisher
    ..Onion press cake had significantly higher levels of total quercetin as compared with fresh onions (p < 0.05)...
  10. Yang Y, Karlson D. Overexpression of AtCSP4 affects late stages of embryo development in Arabidopsis. J Exp Bot. 2011;62:2079-91 pubmed publisher
    ..Collectively, these data suggest that AtCSP4 plays an important role during the late stages of silique development by affecting the expression of several development-related genes...

Detail Information

Publications79

  1. Ghosh M, Bandyopadhyay M, Mukherjee A. Genotoxicity of titanium dioxide (TiO2) nanoparticles at two trophic levels: plant and human lymphocytes. Chemosphere. 2010;81:1253-62 pubmed publisher
    ..25 mM and above. The study thus confirms the genotoxic potential of TiO(2) nanoparticles in both plant and human lymphocytes...
  2. Kingsley D, Guan D, Hoover D. Pressure inactivation of hepatitis A virus in strawberry puree and sliced green onions. J Food Prot. 2005;68:1748-51 pubmed
    ..of high-pressure processing as an intervention strategy for virus in produce, strawberry puree and sliced green onions were inoculated with > 10(6) PFU of hepatitis A virus and treated with pressures ranging from 225 to 375 ..
  3. Lee J, Mitchell A. Pharmacokinetics of quercetin absorption from apples and onions in healthy humans. J Agric Food Chem. 2012;60:3874-81 pubmed publisher
    ..e., species and cultivar). Dietary sources include onions and apples (i.e., the peel)...
  4. Laird D, Sun Y, Reineke K, Shieh Y. Effective hepatitis A virus inactivation during low-heat dehydration of contaminated green onions. Food Microbiol. 2011;28:998-1002 pubmed publisher
    ..demonstrated the effects of low heat dehydration on inactivating hepatitis A virus (HAV) on contaminated green onions. Inoculated and uninoculated onion samples were dehydrated at target temperatures of 45-65 °C for 20 h...
  5. Galván G, Kuyper T, Burger K, Keizer L, Hoekstra R, Kik C, et al. Genetic analysis of the interaction between Allium species and arbuscular mycorrhizal fungi. Theor Appl Genet. 2011;122:947-60 pubmed publisher
    ..Positive correlation between high number of roots, biomass and large response to AMF in close relatives of onion opens prospects to combine these traits for the development of more robust onion cultivars...
  6. Løkke M, Edelenbos M, Larsen E, Feilberg A. Investigation of volatiles emitted from freshly cut onions (Allium cepa L.) by real time proton-transfer reaction-mass spectrometry (PTR-MS). Sensors (Basel). 2012;12:16060-76 pubmed publisher
    Volatile organic compounds (VOCs) in cut onions (Allium cepa L.) were continuously measured by PTR-MS during the first 120 min after cutting...
  7. Glińska S, Gabara B. The effects of the anthocyanin-rich extract from red cabbage leaves on Allium cepa L. root tip cell ultrastructure. Ecotoxicol Environ Saf. 2011;74:93-8 pubmed publisher
  8. de Rainho C, Kaezer A, Aiub C, Felzenszwalb I. Ability of Allium cepa L. root tips and Tradescantia pallida var. purpurea in N-nitrosodiethylamine genotoxicity and mutagenicity evaluation. An Acad Bras Cienc. 2010;82:925-32 pubmed
    ..T. pallida purpurea did not respond to mutagens with a dose-dependent pattern. In conclusion, our study indicates that the root tips of Allium cepa L. have sensibility to detect NDEA genotoxicity, but not for Trad-SH test...
  9. Lee J, Mitchell A. Quercetin and isorhamnetin glycosides in onion (Allium cepa L.): varietal comparison, physical distribution, coproduct evaluation, and long-term storage stability. J Agric Food Chem. 2011;59:857-63 pubmed publisher
    ..Onion press cake had significantly higher levels of total quercetin as compared with fresh onions (p < 0.05)...
  10. Yang Y, Karlson D. Overexpression of AtCSP4 affects late stages of embryo development in Arabidopsis. J Exp Bot. 2011;62:2079-91 pubmed publisher
    ..Collectively, these data suggest that AtCSP4 plays an important role during the late stages of silique development by affecting the expression of several development-related genes...
  11. Diaz Montano J, Fuchs M, Nault B, Fail J, Shelton A. Onion thrips (Thysanoptera: Thripidae): a global pest of increasing concern in onion. J Econ Entomol. 2011;104:1-13 pubmed
    ..tabaci and discuss current management strategies based on chemical, biological, and cultural control as well as host resistance. Future directions for research in integrated pest management are examined and discussed...
  12. Sun Y, Laird D, Shieh Y. Temperature-dependent survival of hepatitis A virus during storage of contaminated onions. Appl Environ Microbiol. 2012;78:4976-83 pubmed publisher
    Pre- or postharvest contamination of green onions by hepatitis A virus (HAV) has been linked to large numbers of food-borne illnesses...
  13. Ghodake G, Seo Y, Lee D. Hazardous phytotoxic nature of cobalt and zinc oxide nanoparticles assessed using Allium cepa. J Hazard Mater. 2011;186:952-5 pubmed publisher
    ..Zinc oxide NPs caused damage because of their severe accumulation in both the cellular and the chromosomal modules, thus signifying their highly hazardous phytotoxic nature...
  14. Downes K, Terry L. A new acetonitrile-free mobile phase method for LC-ELSD quantification of fructooligosaccharides in onion (Allium cepa L.). Talanta. 2010;82:118-24 pubmed publisher
    ..The MeOH-based extraction method was more efficacious at extracting sugars and FOS from onion flesh, eluting significantly higher concentrations of glucose, kestose, nystose and DP5-DP8...
  15. Chang H, Ko M, Ishizuka M, Fujita S, Yabuki A, Hossain M, et al. Sodium 2-propenyl thiosulfate derived from garlic induces phase II detoxification enzymes in rat hepatoma H4IIE cells. Nutr Res. 2010;30:435-40 pubmed publisher
    There is evidence that onions and garlic protect against cancer in humans...
  16. Femia A, Caderni G, Ianni M, Salvadori M, Schijlen E, Collins G, et al. Effect of diets fortified with tomatoes or onions with variable quercetin-glycoside content on azoxymethane-induced aberrant crypt foci in the colon of rats. Eur J Nutr. 2003;42:346-52 pubmed
    ..To investigate whether tomatoes and onions,with low or high quercetin-glycoside content, could reduce azoxymethane (AOM)-induced Aberrant Crypt Foci (ACF), ..
  17. Mullen W, Edwards C, Crozier A. Absorption, excretion and metabolite profiling of methyl-, glucuronyl-, glucosyl- and sulpho-conjugates of quercetin in human plasma and urine after ingestion of onions. Br J Nutr. 2006;96:107-16 pubmed
    ..Lightly fried onions containing 275 micromol flavonols, principally quercetin-4'-glucoside and quercetin-3,4'-diglucoside, were fed to ..
  18. Baert L, Uyttendaele M, Vermeersch M, Van Coillie E, Debevere J. Survival and transfer of murine norovirus 1, a surrogate for human noroviruses, during the production process of deep-frozen onions and spinach. J Food Prot. 2008;71:1590-7 pubmed
    The reduction of murine norovirus 1 (MNV-1) on onions and spinach by washing was investigated as was the risk of contamination during the washing procedure...
  19. Park E, Alexander E, Taylor G, Costa R, Kang D. The decontaminative effects of acidic electrolyzed water for Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes on green onions and tomatoes with differing organic demands. Food Microbiol. 2009;26:386-90 pubmed publisher
    ..the presence of organic matter, in the form of bovine serum against foodborne pathogens on the surfaces of green onions and tomatoes...
  20. Kim S, Jones R, Yoo K, Pike L. Gold color in onions (Allium cepa): a natural mutation of the chalcone isomerase gene resulting in a premature stop codon. Mol Genet Genomics. 2004;272:411-9 pubmed
    Unusual gold-colored onions were selected from a F3 family originating from a cross between US-type yellow and Brazilian yellow onions...
  21. Galván G, Parádi I, Burger K, Baar J, Kuyper T, Scholten O, et al. Molecular diversity of arbuscular mycorrhizal fungi in onion roots from organic and conventional farming systems in the Netherlands. Mycorrhiza. 2009;19:317-328 pubmed publisher
    ..This suggests that farming systems as such did not influence AMF diversity, but rather specific environmental conditions or agricultural practices. ..
  22. Moriguchi K, Suzuki T, Ito Y, Yamazaki Y, Niwa Y, Kurata N. Functional isolation of novel nuclear proteins showing a variety of subnuclear localizations. Plant Cell. 2005;17:389-403 pubmed
  23. Ioku K, Aoyama Y, Tokuno A, Terao J, Nakatani N, Takei Y. Various cooking methods and the flavonoid content in onion. J Nutr Sci Vitaminol (Tokyo). 2001;47:78-83 pubmed
    ..The hydrolysis of quercetin glycosides for daily cooking might occur with the addition of seasonings such as glutamic acid. Additional ferrous ions accelerated the loss of flavonoids. ..
  24. Tsuge K, Kataoka M, Seto Y. Determination of S-methyl-, S-propyl-, and S-propenyl-L-cysteine sulfoxides by gas chromatography-mass spectrometry after tert-butyldimethylsilylation. J Agric Food Chem. 2002;50:4445-51 pubmed
    ..The contents of 1, 2, and 3 in commercial onion were estimated to be 0.3, 3.1, and 3.0 mg, respectively, per gram of fresh weight. ..
  25. Kitajima A, Asatsuma S, Okada H, Hamada Y, Kaneko K, Nanjo Y, et al. The rice alpha-amylase glycoprotein is targeted from the Golgi apparatus through the secretory pathway to the plastids. Plant Cell. 2009;21:2844-58 pubmed publisher
    ..Thus, Golgi-to-plastid traffic appears to be involved in the transport of glycoproteins to plastids and plastid targeting seems to be accomplished in a sorting signal-dependent manner. ..
  26. Mondy N, Duplat D, Christides J, Arnault I, Auger J. Aroma analysis of fresh and preserved onions and leek by dual solid-phase microextraction-liquid extraction and gas chromatography-mass spectrometry. J Chromatogr A. 2002;963:89-93 pubmed
    ..These dramatic changes can explain the very different flavours of these manufactured products compared to fresh material. ..
  27. Samaniego R, Jeong S, de la Torre C, Meier I, Moreno Díaz de la Espina S. CK2 phosphorylation weakens 90 kDa MFP1 association to the nuclear matrix in Allium cepa. J Exp Bot. 2006;57:113-24 pubmed
    ..These results provide the first evidence for AcMFP1 in vivo phosphorylation, and open up further research on its nuclear functions...
  28. Khrustaleva L, de Melo P, van Heusden A, Kik C. The integration of recombination and physical maps in a large-genome monocot using haploid genome analysis in a trihybrid allium population. Genetics. 2005;169:1673-85 pubmed
    ..These findings are different from data obtained on cereals, where recombination rate and gene density tends to be higher in distal regions...
  29. Kawamoto E, Sakai Y, Okamura Y, Yamamoto Y. Effects of boiling on the antihypertensive and antioxidant activities of onion. J Nutr Sci Vitaminol (Tokyo). 2004;50:171-6 pubmed
  30. Wang Z, Soanes D, Kershaw M, Talbot N. Functional analysis of lipid metabolism in Magnaporthe grisea reveals a requirement for peroxisomal fatty acid beta-oxidation during appressorium-mediated plant infection. Mol Plant Microbe Interact. 2007;20:475-91 pubmed
    ..grisea to complete its prepenetration phase of development and enter the host plant. ..
  31. Leme D, de Angelis D, Marin Morales M. Action mechanisms of petroleum hydrocarbons present in waters impacted by an oil spill on the genetic material of Allium cepa root cells. Aquat Toxicol. 2008;88:214-9 pubmed publisher
    ..Probably all the observed effects were induced by the petroleum hydrocarbons derived from the oil leakage. ..
  32. Wang Y, Motes C, Mohamalawari D, Blancaflor E. Green fluorescent protein fusions to Arabidopsis fimbrin 1 for spatio-temporal imaging of F-actin dynamics in roots. Cell Motil Cytoskeleton. 2004;59:79-93 pubmed
    ..Moreover, the localization of AtFim1-GFP offers insights into the regulation of actin organization in developing roots by this class of actin cross-linking proteins. ..
  33. Mathur J, Mathur N, Hulskamp M. Simultaneous visualization of peroxisomes and cytoskeletal elements reveals actin and not microtubule-based peroxisome motility in plants. Plant Physiol. 2002;128:1031-45 pubmed
    ..Microtubule depolymerization or stabilization had no effect...
  34. Briggs W, Folts J, Osman H, Goldman I. Administration of raw onion inhibits platelet-mediated thrombosis in dogs. J Nutr. 2001;131:2619-22 pubmed
    A number of studies suggest that dietary intake of onions is of benefit to cardiovascular health. Onion juice inhibits in vitro human platelet aggregation...
  35. Mullen W, Boitier A, Stewart A, Crozier A. Flavonoid metabolites in human plasma and urine after the consumption of red onions: analysis by liquid chromatography with photodiode array and full scan tandem mass spectrometric detection. J Chromatogr A. 2004;1058:163-8 pubmed
    Blood was collected from six human volunteers 1 h after the ingestion of lightly fried red onions, which are rich in anthocyanins and flavonols. Urine excreted 0-4 h after ingestion was also collected...
  36. Campos K, Diniz Y, Cataneo A, Faine L, Alves M, Novelli E. Hypoglycaemic and antioxidant effects of onion, Allium cepa: dietary onion addition, antioxidant activity and hypoglycaemic effects on diabetic rats. Int J Food Sci Nutr. 2003;54:241-6 pubmed
    ..cepa were associated with antioxidant activity, since onion decreased superoxide dismutase activities while no increased lipid hydroperoxide and lipoperoxide concentrations were observed in diabetic rats treated with A. cepa...
  37. Fatima R, Ahmad M. Allium cepa derived EROD as a potential biomarker for the presence of certain pesticides in water. Chemosphere. 2006;62:527-37 pubmed
    ..We recommend the assay of EROD in the Allium cepa system as a presumptive test for the detection of these pesticides before using analytical techniques like HPLC...
  38. Park J, Kim J, Kim M. Onion flesh and onion peel enhance antioxidant status in aged rats. J Nutr Sci Vitaminol (Tokyo). 2007;53:21-9 pubmed
    ..Onion flesh or onion peel enhanced antioxidant status in aged rats and may be beneficial for the elderly as a means of lowering lipid peroxide levels...
  39. Rybaczek D, Maszewski J. Phosphorylation of H2AX histones in response to double-strand breaks and induction of premature chromatin condensation in hydroxyurea-treated root meristem cells of Raphanus sativus, Vicia faba, and Allium porrum. Protoplasma. 2007;230:31-9 pubmed
    ..On the other hand, however, caffeine-mediated overriding of the S-M checkpoint control system resulted in the typical appearance of premature chromosome condensation, irrespective of the genomic content of DNA...
  40. Dentinger C, Bower W, Nainan O, Cotter S, Myers G, Dubusky L, et al. An outbreak of hepatitis A associated with green onions. J Infect Dis. 2001;183:1273-6 pubmed
    ..A matched case-control study determined that foods containing green onions, which were eaten by 38 (95%) of 40 case patients compared with 30 (50%) of 60 control subjects, were associated ..
  41. Perner H, Rohn S, Driemel G, Batt N, Schwarz D, Kroh L, et al. Effect of nitrogen species supply and mycorrhizal colonization on organosulfur and phenolic compounds in onions. J Agric Food Chem. 2008;56:3538-45 pubmed publisher
    ..of health-related organosulfur compounds, total phenolic compounds, and flavonol glycoside concentrations in onions. For this purpose, greenhouse-grown onions ( Allium cepa L...
  42. Kumari M, Mukherjee A, Chandrasekaran N. Genotoxicity of silver nanoparticles in Allium cepa. Sci Total Environ. 2009;407:5243-6 pubmed publisher
    ..The findings also suggest that plants as an important component of the ecosystems need to be included when evaluating the overall toxicological impact of the nanoparticles in the environment...
  43. Park E, Alexander E, Taylor G, Costa R, Kang D. Fate of foodborne pathogens on green onions and tomatoes by electrolysed water. Lett Appl Microbiol. 2008;46:519-25 pubmed publisher
    To investigate the efficacy of electrolysed water (EW) in killing Escherichia coli O157:H7, Salmonella typhimurium and Listeria monocytogenes on the surfaces of spot-inoculated green onions and tomatoes.
  44. Arnault I, Mondy N, Cadoux F, Auger J. Possible interest of various sample transfer techniques for fast gas chromatography-mass spectrometric analysis of true onion volatiles. J Chromatogr A. 2000;896:117-24 pubmed
    ..To characterise and to quantify all the true onion volatiles, we propose to analyse the same sample by successive SPME-GC-MS and solvent extraction-GC-MS...
  45. Cui P, Moreno Díaz de la Espina S. Sm and U2B" proteins redistribute to different nuclear domains in dormant and proliferating onion cells. Planta. 2003;217:21-31 pubmed
    ..We report here an unusual nuclear domain in dormant nuclei, the micro-speckles, corresponding to storage sites for RNPs, which were rapidly mobilised after water imbibition...
  46. Gundersen V, Bechmann I, Behrens A, Sturup S. Comparative investigation of concentrations of major and trace elements in organic and conventional Danish agricultural crops. 1. Onions (Allium cepa Hysam) and peas (Pisum sativum ping pong). J Agric Food Chem. 2000;48:6094-102 pubmed
    210 samples of onions (Allium cepa Hysam) from 11 conventionally and 10 organically cultivated sites and 190 samples of peas (Pisum sativum Ping Pong) from 10 conventionally and 9 organically cultivated sites in Denmark were collected and ..
  47. Makris D, Rossiter J. Domestic processing of onion bulbs (Allium cepa) and asparagus spears (Asparagus officinalis): effect on flavonol content and antioxidant status. J Agric Food Chem. 2001;49:3216-22 pubmed
    ..Chopping significantly affected rutin content in asparagus, yielding an 18.5% decrease in 60 min; but in onions, quercetin 3,4'-diglucoside (Q(DG)) and quercetin 4'-glucoside (Q(MG)) were virtually unaffected by chopping...
  48. Imai S, Tsuge N, Tomotake M, Nagatome Y, Sawada H, Nagata T, et al. Plant biochemistry: an onion enzyme that makes the eyes water. Nature. 2002;419:685 pubmed
  49. Griffiths G, Trueman L, Crowther T, Thomas B, Smith B. Onions--a global benefit to health. Phytother Res. 2002;16:603-15 pubmed
    ..Because of their storage characteristics and durability for shipping, onions have always been traded more widely than most vegetables...
  50. Kuhl J, Cheung F, Yuan Q, Martin W, Zewdie Y, McCallum J, et al. A unique set of 11,008 onion expressed sequence tags reveals expressed sequence and genomic differences between the monocot orders Asparagales and Poales. Plant Cell. 2004;16:114-25 pubmed
    ..The Asparagales were more similar to eudicots than to the Poales for these genomic characteristics...
  51. Jakse J, Meyer J, Suzuki G, McCallum J, Cheung F, Town C, et al. Pilot sequencing of onion genomic DNA reveals fragments of transposable elements, low gene densities, and significant gene enrichment after methyl filtration. Mol Genet Genomics. 2008;280:287-92 pubmed publisher
    ..Our results revealed no evidence for gene-dense regions and indicated that sequencing of methyl-filtered genomic fragments should be an efficient approach to reveal genic sequences in the onion genome...
  52. Kim S, Yoo K, Pike L. Development of a PCR-based marker utilizing a deletion mutation in the dihydroflavonol 4-reductase (DFR) gene responsible for the lack of anthocyanin production in yellow onions (Allium cepa). Theor Appl Genet. 2005;110:588-95 pubmed
    Bulb color in onions (Allium cepa) is an important trait, but the mechanism of color inheritance is poorly understood at the molecular level...
  53. Glińska S, Bartczak M, Oleksiak S, Wolska A, Gabara B, Posmyk M, et al. Effects of anthocyanin-rich extract from red cabbage leaves on meristematic cells of Allium cepa L. roots treated with heavy metals. Ecotoxicol Environ Saf. 2007;68:343-50 pubmed
    ..These data suggest a protective action of the ATH-rich extract from red cabbage leaves against heavy metal toxicity...
  54. Kumari K, Augusti K. Antidiabetic and antioxidant effects of S-methyl cysteine sulfoxide isolated from onions (Allium cepa Linn) as compared to standard drugs in alloxan diabetic rats. Indian J Exp Biol. 2002;40:1005-9 pubmed
    ..In the amelioration of diabetes the standard drugs showed a better action, but as an antioxidant SMCS proved to be a better one...
  55. Petersson E, Liu J, Sjöberg P, Danielsson R, Turner C. Pressurized Hot Water Extraction of anthocyanins from red onion: A study on extraction and degradation rates. Anal Chim Acta. 2010;663:27-32 pubmed publisher
    ..The results give information about the different kinetic processes competing during an extraction procedure...
  56. Storsberg J, Schulz H, Keusgen M, Tannous F, Dehmer K, Keller E. Chemical characterization of interspecific hybrids between Allium cepa L. and Allium kermesinum Rchb. J Agric Food Chem. 2004;52:5499-505 pubmed
  57. Slimestad R, Fossen T, Vågen I. Onions: a source of unique dietary flavonoids. J Agric Food Chem. 2007;55:10067-80 pubmed
    ..Yellow onions contain 270-1187 mg of flavonols per kilogram of fresh weight (FW), whereas red onions contain 415-1917 mg of ..
  58. Chancellor D, Tyagi S, Bazaco M, Bacvinskas S, Chancellor M, Dato V, et al. Green onions: potential mechanism for hepatitis A contamination. J Food Prot. 2006;69:1468-72 pubmed
    ..S. history occurred in November 2003. The source of that outbreak was green onions from a farm in Mexico...
  59. Kale A, Gawande S, Kotwal S, Netke S, Roomi W, Ivanov V, et al. Studies on the effects of oral administration of nutrient mixture, quercetin and red onions on the bioavailability of epigallocatechin gallate from green tea extract. Phytother Res. 2010;24 Suppl 1:S48-55 pubmed publisher
    ..after oral administration of green tea extract (GTE) or GTE as a nutrient mixture (E) or E + quercetin (Q)/red onions. In rat studies, supplementation of GTE with other nutrients (E) or E + Q raised the plasma C(max) from 55...
  60. Graefe E, Wittig J, Mueller S, Riethling A, Uehleke B, Drewelow B, et al. Pharmacokinetics and bioavailability of quercetin glycosides in humans. J Clin Pharmacol. 2001;41:492-9 pubmed
    ..The significance of specific carriers on the absorption of quercetin glycosides, as well as specific intestinal beta-glucosidases, needs to be further evaluated...
  61. Eady C, Kamoi T, Kato M, Porter N, Davis S, Shaw M, et al. Silencing onion lachrymatory factor synthase causes a significant change in the sulfur secondary metabolite profile. Plant Physiol. 2008;147:2096-106 pubmed publisher
    ..This reduced lachrymatory synthase activity by up to 1,544-fold, so that when wounded the onions produced significantly reduced levels of tear-inducing lachrymatory factor...
  62. Sellappan S, Akoh C. Flavonoids and antioxidant capacity of Georgia-grown Vidalia onions. J Agric Food Chem. 2002;50:5338-42 pubmed
    ..Nevertheless, a stronger correlation (r(2) = 0.34) was obtained between flavonoid content versus antioxidant capacity. The data indicate that Vidalia onions are a rich source of quercetin, and they also contain myricetin and kaempferol.
  63. Paves H, Truve E. Incorporation of mammalian actin into microfilaments in plant cell nucleus. BMC Plant Biol. 2004;4:7 pubmed
  64. Shon M, Choi S, Kahng G, Nam S, Sung N. Antimutagenic, antioxidant and free radical scavenging activity of ethyl acetate extracts from white, yellow and red onions. Food Chem Toxicol. 2004;42:659-66 pubmed
    ..This study demonstrated that the antimutagenicities and antioxidant properties of ethyl acetate extract against mutagens were related to their phenols and flavonoids, which are heat stable and losses digestive juices are relatively low...
  65. Jacobs J, Fasi A, Ramette A, Smith J, Hammerschmidt R, Sundin G. Identification and onion pathogenicity of Burkholderia cepacia complex isolates from the onion rhizosphere and onion field soil. Appl Environ Microbiol. 2008;74:3121-9 pubmed publisher
    ..cepacia complex species colonize the onion rhizosphere and have the potential to cause sour skin rot disease of onion. In addition, the onion rhizosphere is a natural habitat and a potential environmental source of B. cenocepacia...
  66. Gorinstein S, Leontowicz H, Leontowicz M, Namiesnik J, Najman K, Drzewiecki J, et al. Comparison of the main bioactive compounds and antioxidant activities in garlic and white and red onions after treatment protocols. J Agric Food Chem. 2008;56:4418-26 pubmed publisher
    Polish garlic and white and red onions were subjected to blanching, boiling, frying, and microwaving for different periods of time, and then their bioactive compounds (polyphenols, flavonoids, flavanols, anthocyanins, tannins, and ..
  67. Galmarini C, Goldman I, Havey M. Genetic analyses of correlated solids, flavor, and health-enhancing traits in onion (Allium cepa L.). Mol Genet Genomics. 2001;265:543-51 pubmed
  68. McCallum J, Clarke A, Pither Joyce M, Shaw M, Butler R, Brash D, et al. Genetic mapping of a major gene affecting onion bulb fructan content. Theor Appl Genet. 2006;112:958-67 pubmed
    ..This locus, provisionally named Frc, may account for the major phenotypic differences in bulb carbohydrate content between storage and sweet onion varieties...
  69. Chu Y, Sun J, Wu X, Liu R. Antioxidant and antiproliferative activities of common vegetables. J Agric Food Chem. 2002;50:6910-6 pubmed
    ..The BI could be a new alternative biomarker for future epidemiological studies in dietary cancer prevention and health promotion...
  70. Lanzotti V. The analysis of onion and garlic. J Chromatogr A. 2006;1112:3-22 pubmed
    ..Particular attention was given to the different methodology developed to perform chemical analysis, including separation and structural elucidation...
  71. Lee S, Lee J, Choi S, Lee J, Ohnisi Kameyama M, Kozukue N, et al. Flavonoid content in fresh, home-processed, and light-exposed onions and in dehydrated commercial onion products. J Agric Food Chem. 2008;56:8541-8 pubmed publisher
    ..Because flavonoids also exhibit health-promoting effects in humans, a need exists to measure their content in onions and in processed onion products...
  72. Chang H, Yamato O, Yamasaki M, Ko M, Maede Y. Growth inhibitory effect of alk(en)yl thiosulfates derived from onion and garlic in human immortalized and tumor cell lines. Cancer Lett. 2005;223:47-55 pubmed
    ..These results suggest that the alk(en)yl thiosulfates have an antitumor effect through the induction of apoptosis initiated by oxidative stress...
  73. Yang J, Meyers K, van der Heide J, Liu R. Varietal differences in phenolic content and antioxidant and antiproliferative activities of onions. J Agric Food Chem. 2004;52:6787-93 pubmed
    ..b>Onions are a major source of dietary flavonoids; however, there may exist varietal differences in composition, ..
  74. Leme D, Marin Morales M. Allium cepa test in environmental monitoring: a review on its application. Mutat Res. 2009;682:71-81 pubmed publisher
    ..cepa test system offers, it has been widely used to assess the impacts caused by xenobiotics, characterizing an important tool for environmental monitoring studies, where satisfactory results have been reported...
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    ..However, gugulipid is a better drug than SMCS at a low dose of 50mg/kg body weight...
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    ..In November 2003, a large hepatitis A outbreak was identified among patrons of a single Pennsylvania restaurant. We investigated the cause of the outbreak and factors that contributed to its unprecedented size...
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    ..BAC FISH screening is a powerful method for identification of molecular cytogenetic markers in large-genome plants...
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    ..This use of the Caco2 cell model appears to be a simple and useful system for studying bioavailability of whole food phytochemicals and may be used to assess differences in bioavailability between foods...
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