Bok choy Bok choy Bok choy, pak choi or pok choi (; "Brassica rapa" subsp. "chinensis") is a type of Chinese cabbage. "Chinensis" varieties do not form heads and have smooth, dark green leaf blades instead, forming a cluster reminiscent of mustard greens or celery. "Chinensis" varieties are popular in southern China and Southeast Asia. Being winter-hardy, they are increasingly grown in Northern Europe. This group was originally classified as its own species under the name "Brassica chinensis" by Linnaeus. Other than the ambiguous term "Chinese cabbage", the most widely used name in North America for the "chinensis" variety is "bok choy"
Vegetable oils as alternative energy around the World is increasing. It is estimated that by 2010 the market for biodiesel will be 7.5 billion litres (2 billion USgallons) in the U.S and 9.5 billion litres (2.5 billion USgallons) in Europe. Biodiesel currently has 3% of the diesel market in Germany and is the number 1 alternative fuel. The German government has a Biofuels Roadmap in which they expect to reach 10% biofuels by 2010 with the diesel 10% coming from fuel made from vegetable oil. From 2005 to 2007 a number of types of vegetable oil have doubled in price. The rise in vegetable oil