Phytic acid (known as inositol hexakisphosphate (IP6), inositol polyphosphate, or phytate when in salt form), discovered in 1903, a saturated cyclic acid, is the principal storage form of phosphorus in many plant tissues, especially bran and seeds. It can be found in cereals and grains.
Catabolites of phytic acid are called lower inositol polyphosphates. Examples are inositol penta- (IP5), tetra- (IP4), and triphosphate (IP3).
Phosphorus and inositol in phytate form are not, in general, bioavailable to nonruminant animals because these animals lack the digestive enzyme phytase required to remove phosphate from the inositol in the phytate molecule. Ruminants are readily able to digest phytate because of the phytase produced by rumen microorganisms.
In most commercial agriculture, nonruminant livestock, such as swine, fowl, and fish, are fed mainly grains, such as maize, legumes, and soybeans. Because phytate from these grains and beans is unavailable for absorption, the unabsorbed phytate passes through the gastrointestinal tract, elevating the amount of phosphorus in the manure. Excess phosphorus excretion can lead to environmental problems, such as eutrophication.
INSP can refer to
INSP (formerly The Inspiration Network; the initialism is sounded out letter-by-letter) is an American digital cable and satellite television channel that features family entertainment programming. INSP is headquartered in Indian Land, South Carolina, near Charlotte, North Carolina. It is wholly owned by Inspiration Ministries. Between 1991 and 2010, INSP was a non-profit ministry focused network. In October 2010, it was re-branded and launched as a commercial-supported, family-entertainment network with Nielsen C3 ratings status.
As of February 2015, approximately 80,584,000 American households (69.2% of households with television) receive INSP.
INSP was founded in 1978 as the PTL Television Network, a religious television network founded by Christian televangelists Jim Bakker and his wife, Tammy Faye Bakker. The network was the flagship channel for their daily Christian variety program, The PTL Club. The network later became known as the PTL Satellite Network and finally PTL – The Inspirational Network.