Pyruvate scale

Pyruvate scale

The Pyruvate scale measures pungency in onions and garlic with units of um/gfw. It is named after the acid in onions which makes peoples eyes tear up when cutting them.

The standard onion has an eight rating, while "sweet onions" have a two or three rating on the scale. The lower the score or scale the more "sweet" the onions are rated. Anything less than five is considered a sweet onion.

The Vidalia onion variety are considered sweet and must have a score of 5.0 um/gfw or less.Fact|date=February 2007 The Supasweet onion (usually grown in Lincolnshire, England) registers 1.5 to 2 on the scale. A standard brown onion is usually in the range of 6-7 out of 10.

Soil type, rain, and sunlight affect the pungency in onions and garlic and, therefore, their score on the pyruvate scale.

External links

* [http://www.ams.usda.gov/nop/indexNet.htm The National Organic Program] — by the USDA


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Pyruvate carboxylase — Protein Name=PAGENAME caption= Symbol=PC AltSymbols= HGNCid=8636 Chromosome=11 Arm=q Band=11 LocusSupplementaryData= q13.1 ECnumber=6.4.1.1 OMIM=608786 EntrezGene=5091 RefSeq=NM 000920 UniProt=P11498 PDB=Pyruvate carboxylase is an enzyme of the… …   Wikipedia

  • Garlic — For other uses, see Garlic (disambiguation). Garlic Allium sativum, known as garlic, from William Woodville, Medical Botany, 1793. Scientific classification …   Wikipedia

  • Onion — Onions redirects here. For the name and those bearing it, see Onions (surname). This article is about the plants. For other uses, see Onion (disambiguation). Onion Onions Scientific classification …   Wikipedia

  • PDK3 — Pyruvate dehydrogenase kinase, isozyme 3 PDB rendering based on 1y8n …   Wikipedia

  • Protein domain — Pyruvate kinase, a protein from three domains (PDB 1pkn) A protein domain is a part of protein sequence and structure that can evolve, function, and exist independently of the rest of the protein chain. Each domain forms a compact three… …   Wikipedia

  • metabolism — /meuh tab euh liz euhm/, n. 1. Biol., Physiol. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Cf. anabolism, catabolism …   Universalium

  • plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

  • photosynthesis — photosynthetic /foh teuh sin thet ik/, adj. photosynthetically, adv. /foh teuh sin theuh sis/, n. Biol., Biochem. (esp. in plants) the synthesis of complex organic materials, esp. carbohydrates, from carbon dioxide, water, and inorganic salts,… …   Universalium

  • Metabolism — Cell metabolism redirects here. For the journal, see Cell Metabolism. Structure of adenosine triphosphate, a central intermediate in energy metabolism Metabolism (from Greek: μεταβολή metabolē , change or Greek: μεταβολισμός metabolismos,… …   Wikipedia

  • Mitochondrion — For the metal band, see Mitochondrion (band). Two mitochondria from mammalian lung tissue displaying their matrix and membranes as shown by electron microscopy …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”