Overview of cycle between autotrophs and heterotrophs. A heterotroph (/ËhÉtÉrÉµtroÊf/ ; á¼ÏÎµÏÎ¿Ï heteros = another, different and ÏÏÎ¿ÏÎ® trophe = nutrition) is an organism that cannot fix carbon and uses organic carbon for growth.ost heterotrophs are chemoorganoheterotrophs (or simply organotrophs) who utilize organic compounds both as a carbon source and an energy source. The term heterotroph very often refers to chemoorganoheterotrophs.
Fumaric acid or trans-butenedioic acid is the chemical compound with the formula HO 2 CCH=CHCO 2 H. This white crystalline compound is one of two isomeric unsaturated dicarboxylic acids, the other being maleic acid.umaric acid has been used a food acidulant since 1946. It is approved for use as a food additive in the EU, USA and Australia and New Zealand. As a food additive, it is used as an acidity regulator and can be denoted by the E number E297.
Formic acid is a chemical that is both naturally occurring and frequently synthesized in laboratories. In nature, it is most commonly found in the bites and stings of insects, namely ants and bees.It is this compound that causes most of the irritation that occurs immediately following an ant bite or a bee sting.ecause of its natural antibacterial properties, formic acid has achieved very high use as both an antibacterial preservative and pesticide. In this industry, it is most commonly used as a food additive, and is frequently added to animal feed and silage. When it is used in silage, it serves a dual function.