A: The enzymes that break down protein include trypsin, chymotrypsin, pepsin, thermolysin, glutamyl endopeptidase, elastase, bromelain and papain. Trypsin, pepsin, elastase, thermolysin, glutamyl, endopeptidase and chymotrypsin are made in the human body. Bromelain comes from pineapples and papain comes from papayas.
Deli Paper is a wonderful and unique paper. It's translucent and very very thin as well as super strong. It's also very cheap! I use it all the time because it's just so versatile. This class is hosted on a private password protected blog and contains six video lessons.
As the name implies, paper is the primary ingredient in litmus paper. The wood used to make the paper is treated with solvents to get rid of extraneous substances such as lignin and resin; it is then infused with lichen, which is interestingly two organisms--an algae and a fungus--sharing one existence. Two popular varieties of lichen are used in litmus paper, Roccella Tinctoria and Lecanora Tartarea. I is used to determine the pH of a substance (wether acidic or alkaline).