Onion, Allium

Terahara, N., Yamagnchi, M.-A., and Honda, T., Malonylated anthocyanins from bulbs of red onion. Allium cepa L., Biosci. Biotechnol. Biochem., 58, 1324, 1994. 

Fossen, T. and Andersen, 0.M., Anthocyanins from red onion. Allium cepa, with novel aglycone. Phytochemistry, 62, 1217, 2003. 

Sengun, M.Y. and Karapinar, M. (2005a) Effectiveness of household natural sanitizers in the elimination of Salmonella Typhimurium on rocket (Eruca sativa Miller) and spring onion Allium cepa L.) . International Journal of Food Microbiology, 98, 319-323. 

Plants of the genus Allium, e.g. garlic Allium sativum), leek Allium amp-eloprasum), and onion Allium cepa), produce a bewildering variety of sulfur compounds. Selenium analogs for some of these have also been found (Section 11.1.3.6). Much work has focused on garlic (contains more than 100 such materials) and onion.56,66,67 Key compounds for formation of the Allium sulfur-containing secondary metabolites are sulfoxides of cysteine derivatives,... 

Yellow and red onions (Allium cepa) were reported to be poor antioxidants toward oxidation of methyl linoleate (Kahkonen and others 1999) in contrast to their high antioxidant activity toward oxidation of LDL (Vinson and others 1998). Garlic (Allium sativum L) was reported to have four times more antioxidant activity than onions when using the ORAC assay (Cao and others 1996). 

Duranti A, Cuocolo L (1988) Solarization in weed control for onion (Allium cepa L). Adv Hort Sci 2 104-108... 

Flax (Linum usitatissimum L.), alfalfa (M. L.), cotton (Gossipium spp.), onion (.Allium spp.), garlic (Allium sativum L.), proper (Capsicum annum L.), snap bean (P. vulgaris L.), maize (Zea mays L.), sesame (Sesamum indicum h.) Trap crops Abebe et al. 2005... 

The effect of applied plant residues can be positively influenced by an increase of temperature. Mallek et al. (2007) established that dried and milled crop residues of onion (Allium cepa L.) or garlic (A. sativum L.) were able to reduce seed germination of barnyard grass (E. crus-galli (L.) R Beauv.), common purslane (Portulaca oleracea L.), london rocket (Sisymbrium irio L.) during their decomposition in soil, but only at the elevated (39°C) soil temperature. It can support combination of methods for weed control, in this case allelopathy with soil heating treatments (e.g., solarization). 

The separation and identification of two novel anthocyanins from red onion, Allium cepa, have also been reported. Scales of 2.37 kg red onion were cut and extracted twice with methanol containing 0.5 per cent TFA. The extract was filtered, extracted with ethyl acetate and the aqueous phase was further purified in an ion-exchange and an SEC column. SEC separation was performed in a Sephadex LH-20 column (100 X 5 cm i.d.) applying methanol-water-TFA (39.6 60 0.4, v/v) as the mobile phase at a flow rate of 2.5 ml/min. 

NHj R = ethyl, propyl, butyl, prop-1-en-1-yl and allyl Garlic and onion -Allium sp. Components that undergo decomposition to yield lachrymators 13... 

Engle, R. L. Reaction of Onion, Allium cepa L., and Pinto Bean, Phaseolus vul-garb L., to Ozone. Ph.D. Thesis. Madison University of Wisconsin, 1966. 54 pp. 

Engle, R. L., and W. H. Gabelman. Inheritance and mechanism for resistance to ozone damage in onion. Allium cepa L. Proc. Amer. Soc. Hort. Sci. 89 423-430, 1966. 

Price, K.R., Bacon, J.R., and Rhodes, M.J.C., Effect of storage and domestic processing on the content and composition of flavonol glucosides in onion Allium cepd), J. Agric. Food Chem., 45, 938, 1997. 

Du, C.T., Wang, P.L., and Francis, F.J., Cyanidin-3-laminariobioside in Spanish red onion Allium... 

Examination of moist, isolated potato cell walls using atomic force microscopy (AFM) showed the cellulose microfibrils as an interwoven network (Kirby et al., 1996,2006). Although accurate height measurements of cellulose microfibrils have not been obtained using AFM on potato cell walls, they have on similar parenchyma cell-wall preparations from onion (Allium cepa) and Arabidopsis thaliana (Davies and Harris, 2003). These studies showed that the microfibrils were 4-6 nm in diameter, and reduced to 3.2 nm (A. thaliana) when extracted to remove some of the non-cellulosic polysaccharides. 

Onion, Allium cepa spring vs. fall Leaf Root... 

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