| Yellow onion | |
|---|---|
 Yellow Onion | |
| Genus | Allium |
| Species | Allium cepa |
The yellow onion or brown onion (Allium cepa L.[1][2]) is a variety of dry onion with a strong flavour. They have a greenish-white,[3] light yellow,[4] or white inside;[5] its layers of papery skin have a yellow-brown or pale golden colour.[3][4]
It is higher in sulphur content than the white onion, which gives it a stronger, more complex flavour.[5][6]
A dozen varieties of yellow onion are grown, following the time of year. They vary in nutritional content, but they do contain quercetin (a flavonol).[1]
Yellow onions are typically available throughout the year,[4] grown between spring and fall, and then stored for the rest of the year.[4] It is the most commonly grown onion in northern Europe,[2] and it makes up 90% of onions grown in the United States.[4] They should be stored at cool room temperature in a dark place. Longer-term storage requires them to be wrapped in paper and placed in a refrigerator. Cut or peeled onions also need to be stored in plastic in the refrigerator, but they will last only a few days.[4]
They have a rich onion taste and are fit for dishes such as French onion soup, other soups, stews and braises, sautéed dishes, and shish kebabs.[5] They can become sticky and sweet when caramelized.[4]
References
[edit]- ^ a b Mogren, Lars M. Quercetin content in yellow onion (Allium cepa L.) (Thesis). Retrieved 1 February 2017.
- ^ a b Mogren, L.; Gertsson, U.; Olsson, M. E. (2008). "Effect of Cultivation Factors on Flavonoid Content in Yellow Onion (Allium Cepa L.)". Acta Horticulturae. 765 (765): 191–196. doi:10.17660/ActaHortic.2008.765.23.
- ^ a b "Glossary". bbcgoodfood.com. Retrieved 1 February 2017.
- ^ a b c d e f g Rothman, Lauren (June 2014). "A Beginner's Guide to Onions". seriouseats.com. Retrieved 1 February 2017.
- ^ a b c Mower, Chris (30 March 2009). "The Difference between Yellow, White, and Red Onions". thecookingdish.com.
- ^ "Role of Sulfur in Onion Production". yara.us. Retrieved 1 February 2017.
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Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction