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Culprit Compounds That Block Beans’ Healthful Iron Probed

Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. But not all of the little legumes’ treasure trove of iron is bioaccessible—that is, available for our bodies to readily absorb.

In ongoing investigations, Agricultural Research Service (ARS) animal physiologist Raymond P. Glahn and Cornell University co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods. Glahn is based at the ARS Robert W. Holley Center for Agriculture and Health in Ithaca, N.Y.

Earlier this year, Glahn, along with former ARS research plant physiologist Ross M. Welch—now retired and working as a collaborator with the Ithaca laboratory—and their university collaborators began tests with poultry as a followup to experiments that relied on Caco-2 human digestive system cells, cultured in petri dishes.

One current study with poultry builds upon a Caco-2 study from several years ago in which Glahn, Welch and colleagues determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.

Kaempferol belongs to a class of natural substances known as polyphenols. Though scientists have known for decades that polyphenols interfere with absorption of iron from beans, the Ithaca study was apparently the first to pinpoint a specific polyphenol in beans as a possible major player.

There’s another side to polyphenols, however. They are antioxidants, and thus are potentially important food components, according to Glahn. So, the scientists are investigating them further.

The Ithaca research is highlighted in the September 2009 issue of Agricultural Research magazine. Scroll down to the title beginning “A New Slant on Sustainability.”

Short URL: http://chandadavis.net/?p=1746

75 Comments for “Culprit Compounds That Block Beans’ Healthful Iron Probed”

  1. savannah meagher-2nd

    1. Familiar beans like red, whites and pintos are rich in iron, a nutrient essential for our health.
    2. But not all of the little legumes’ treasure trove of iron is bioaccessible- that is avalible for our bodies to readily absorb.
    3.Kaempferol to a class of natural substances known as polyphenols.
    4.They are antioxidents, and thus is potentially important food componets according to Glahn.
    5.There’s another side to polyphenols, however.

  2. Kris Levasseur 2nd period

    1.Familiar beans like reds, whites and pintos are rich in iron.
    2.Earlier this year, Glahn, along with former ARS research plant physiologist Ross M. Welch—now retired.
    3.There’s another side to polyphenols, however.
    4.They are antioxidants, and thus are potentially important food components, according to Glahn.
    5.So, the scientists are investigating them further.

  3. Andrew Rice Oct.19 5th period

    1.Red,white,and pinto beans are rich on iron.
    2.The (ARS) is researching about iron.
    3.They began there test with poultry.
    4.There are digestive cells.
    5.The beans are antioxidants.

  4. Avery Wilson 4th per.

    Familiar beans like reds, whites and pintos are rich in iron.
    Kaempferol belongs to a class of natural substances known as polyphenols.
    A natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.
    Scientists are investigating polyphenols further.
    The Ithaca research is highlighted in the September 2009 issue of Agricultural Research magazine.

  5. connor ferguson 1st period

    1.kaempferol may be a key culprit in decreasing absorption of iron from some types of beans.
    2.polyphenols interferes with absorption of iron from beans.
    3. some beans are rich in iron which is essential for our health.
    4.there are antioxidants that are potentially important food components.
    5. they are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods.

  6. 1. REd, white and pinto beans have lots of iron
    2. kaempferol is a polyphenols
    3. polyphenols are antioxidants
    4. kaempferol may be decreasing absorption of iron from red and pinto beans.
    5. The Ithaca study was the first to pinpoint a specific polyphenol in beans as a possible major player.

  7. 1.Familiar beans like reds, whites and pintos are rich in iron.
    2.Earlier this year, Glahn, along with former ARS research plant physiologist Ross M. Welch—now retired.
    3.There’s another side to polyphenols, however.
    4.They are antioxidants, and thus are potentially important food components, according to Glahn.
    5.So, the scientists are investigating them further.

  8. brett stoddard 5th period

    1).Red,white,and pinto beans are rich in iron.
    2).Not all of them are bioaccessible.
    3).The experiments relied on Caco-2 human digestive system cells.
    4).Kaempferol is from a class of natural substances called polyphenols.
    5).Ithaca research is in the Sep.’09 issue of Agricultural Research magazine.

  9. austin xayavong 5th

    1.Familiar beans like red white and pinto beans are rich in iron.
    2.There’s another side to the polyphenols.

  10. 1. Red White and Pinto beans are very rich in Iron
    2. ARS is researching iron
    3.polyphenols are anitoxdints
    4.Though scientists have known for decades that polyphenols interfere with absorption of iron from beans
    5.The scientiss are investigating this further

  11. Ryan Chamberlain 1st period :D

    Article Summary

    1. The ARS is researching iron
    2. Iron is a nutrient essential for our health.
    3. The ARS (Agricultural Research Service) discovers more about natural compounds in foods that increase or, problematically,decrease absorption of iron from those foods.
    4.Kaempferol belongs to a class of natural substances known as polyphenols.
    5.Another side to polyphenols are antioxidants.

  12. Zach Bennett 1st period

    red, white, and pinto beans are rich with iron

    these beans are antioxident

    kaempferol belongs to a class in the natural substances

    Agricultural Research Service discovered more natural compounds in foods

    Ithaca research is highlighted in the September 2009 issue of Agricultural Research magazine

  13. Ryan Chamberlain 1st period :D

    Article Summary:

    1. Iron is a nutrient essential for our health.
    2 Agricultural Research Service (ARS) are discovering more about natural compounds in foods.
    3. Red, white and pinto beans have alot of iron in them.
    4. Kaempferol belongs to a class of natural substances known as polyphenols.
    5. There’s another side to polyphenols, however. They are antioxidants.

  14. Pamela Hussey - 6th Period

    1. Familiar beans; reds, whites and pintos are rich in iron.
    2. Bioaccessible thats available for our bodies to readily absorb.
    3. The beans are digestive cells that are pontenially inportant food.
    4. The beans are antioxidants.
    5. They are antioxidants, and thus are potentially an important food Components.

  15. Allison Dreisewerd ~ 4th Period

    Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. Some investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods. One current study with poultry determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans. There’s another side to polyphenols, however. They are antioxidants, and thus are potentially important food components so, the scientists are investigating them further.

  16. This article is about culpprit compounds that block beans’ healthful iron absorption. Red and white pinto beans have lots of iron, a nutrient that is necessary in order to keep us healthy. Researchers are discovering more about natural compounds that are found in some foods that increase or decrease absorption of iron from those foods. Animal physiologist Raymond P. Glahn and the past ARS research plant physiologist are experimenting on poultry to study these compounds. They have found that kaemperfol may be the main compound that causes decreased iron absorption in certain foods. Kaemperfol is in the polyphenol class.

  17. 1. Familiar beans like red,whites and pintos are rich in iron
    2. The ARS is reasearching about iron
    3.polyphenols are antioxidants
    4. they’re are antioxidants and thus is portenallly there are food components
    5. the scientists are still investigating about this.

  18. Ruhi singh 2nd period

    1. Red, white and pinto are rich in iron.
    2. Iron is a nutrient essential for our health.
    3. Kaempferol belongs to substances known as polyphenols.
    4. The Ithaca research is in the September 2009 issue of Agricultural Research magazine.
    5. The beans are antioxidants.

  19. natalie seavers 6th

    whites and pintos are rich in iron then Familiar beans like reds are essintal for our health

  20. natalie seavers 6th

    In ongoing investigations the ARS are reserching the compound foods that may increase and decrease iron compassity.

    plant physiologist Ross M. Welch started testing poultry about a year ago.

    kaempferol may be a very reliable cause for the decreasing of absorption of iron from red and pinto beans

    the Ithaca is now leading the search of the red and white been problem.

  21. Caroline Whorton 6th

    1.Beans are a nutrient essential for our health.
    2.Glahn and Ross M. Welch are now retired and working as a collaborator with the Ithaca laboratory.
    3.Poultry builds upon a Caco-2.
    4.Polyphenols belongs to a class of natural substances.
    5.There is another side to polyphenols.

  22. deondre surles 6th period

    Our body absorbs iron from whites,red,and pinto beans.

    Earlier this year Glahn and Ross M. Welch retired.

    Though scientists have known for decades that polyphenols interfere with absorption of iron from beans.

    They are antioxidants and thus are potentially important food components according to Glahn.

    Scientists are working on it further about the iron in the beans.

  23. 1. There are digestive cells.
    2. The beans are antioxidants.
    3. Familiar beans like reds,whites,and pinto’s are rich in iron.
    4. So, scientists are investigating them further.
    5.Some beans are rich in iron which is essential for our health.

  24. Taylor Brown (period 5 )

    1.)Red beans, white beans, and pinto beans are full of nutirients and iron.
    2.)Polyphenols are antioxidants.
    3.)Iron is bioaccessble meaning it is available four the body to absorb.
    4.)Reasearchers are investigating the decrease of absorbed iron.
    4.)Kaempferol may be in full or in part the reason fr decreased iron absortion.

  25. John Parvin McBride-2nd

    1.)Beans like reds, whites and pintos are rich in iron.
    2.)A natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.
    3.)Kaempferol belongs to a class of natural substances known as polyphenols.
    4.) There is another side to polyphenals.
    5.)They are antioxidents, and thus is potentially important food componets according to Glahn.

  26. Will Cook 4th period

    1- many beans are rich in iron
    2-pholyphenols interfere with the absorption of iron from beans
    3- keampforals is a polyphenol
    4-polyphenols are antioxidants
    5- THis makes scientists want to investigate them more

  27. 1) Many beans are rich in iron.
    2) Raymond P. Glahn and Cornell University co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods.
    3) Scientists discovered earlier this year that human digestive are cultured in petri dishes.
    4) Kaempferol belongs to a class of natural substances known as polyphenols.
    5 Though scientists have known for decades that polyphenols interfere with absorption of iron from beans, the Ithaca study was apparently the first to pinpoint a specific polyphenol in beans as a possible major player.

  28. 1) Beans are rich in iron
    2) Not all beans have iron that our body can obsorb.
    3)Raymond P. Glahn is discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron.
    4) Glahn is based at the ARS Robert W. Holley Center for Agriculture and Health in Ithaca, N.Y.
    5)Kaempferol belongs to a class of natural substances known as polyphenols.

  29. Courtney Grays 6th period

    1) Many beans are rich in iron.
    2) Raymond P. Glahn and Cornell University co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods.
    3) Scientists discovered earlier this year that human digestive are cultured in petri dishes.
    4) Kaempferol belongs to a class of natural substances known as polyphenols.
    5 Though scientists have known for decades that polyphenols interfere with absorption of iron from beans, the Ithaca study was apparently the first to pinpoint a specific polyphenol in beans as a possible major player.

  30. Crystal Whitehouse --- 6th Period

    ~ Iron is a nutrient essential for our health; it can be found in familiar beans like reds, whites and pintos.
    ~ But not all of the beans have iron for our bodies to readily absorb
    ~ The experiments relied on Caco-2 human digestive system cells
    ~ Keampforals is a polyphenol; polyphenols are antioxidants
    ~ Because they are antioxidants,they are potentially important food components; So, the scientists are investigating them further.

  31. hunter webber 6th

    1.) Beans are filled with iron.
    2.) There is an ongoing invesction by, animal physiologist Raymond P. Glahn and Cornell University
    3.) Kaempferol is a substinese clasiffied as polyphenols.
    4.) when poultry builds upon a Caco-2 .
    5.) There’s another side to polyphenols.

  32. austin xayavong 5th

    1.Many beans are rich in iron.
    2.Beans like white red and black beans are full of iron.

  33. Andrew Crisp 1st Period

    1.Red, white and pinto are rich in iron
    2.A natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.
    3.Kaempferol belongs to a class of natural substances known as polyphenols.
    4.Though scientists have known for decades that polyphenols interfere with absorption of iron from beans, the Ithaca study was apparently the first to pinpoint a specific polyphenol in beans as a possible major player.
    5.Some beans are rich in iron which is essential for our health.

  34. 1.Familiar beans like reds, whites and pintos are rich in iron.
    2.polyphenols interferes with absorption of iron from beans.
    3.Poultry builds upon a Caco-2.
    4.polyphenols are antioxidants
    5.They are antioxidants, and thus are potentially important food components.

  35. Chase Massey-5th Period

    1. Kaempferol belongs to a class of natural substances known as polyphenolis.
    2. The beans are antioxidents.
    3. Iron is a natrient essential for our health.
    4. Poultry builds upon Caco-2.
    5. Fimiliar beans like reds, whites, and pintos are rich in iron.

  36. Tara Harville- 1st per.

    1. beans like reds, whites and pintos are rich in iron.
    2. iron is a nutrient essential for our health.
    3. co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods.
    4. current studies with poultry builds upon a Caco-2 study from several years ago in which Glahn, Welch and colleagues determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.
    5. They are antioxidants, and thus are potentially important food components, according to Glahn

  37. kathryn walls 6th period science

    1.Red,white,and pinto beans are rich on iron.
    2.The (ARS) is researching about iron.
    3.They began there test with poultry.
    4.There are digestive cells.
    5.The beans are antioxidants.

  38. Raine Aslan - 4th period

    1. Beans are rich in iron.
    2. Not all of the iron in beans is bioaccessible.
    3. The Agricultural Research Service is researching natural compounds in foods that increase or decrease absorption of iron from them.
    4. Kaempferol, a polyphenol, may be a key culprit in decreasing absorption of iron from red and pinto beans.
    5. Another side to polyphenols are antioxidants, which are potentially important food components.

  39. Mauhaun Taheri 1rst period

    1.The red,white,and pinto beans are the richest beans for iron.
    2.THe ARS researchs about iron in beans.
    3.Chicken and poultry have CACO-2 in it.
    4.ARS have found more substance in food.
    5.Polyphenols have other sides.

  40. Xavier Robinson 4th Period

    1) ARS is researching iron
    2) things like chicken,turkey,and other poultry are high in Caco-2
    3) beans have antioxidants in them
    4) pinto beans, white beans, and red beans are full of iron
    5) polyphenols are antioxidants

  41. Matthew Eppard 1st Period

    1. Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health.
    2.Not all of the little legumes’ treasure trove of iron is bioaccessible—that is, available for our bodies to readily absorb.
    3. Agricultural Research Service animal physiologist Raymond P. Glahn and Cornell University co-investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods.
    4.Earlier this year, Glahn, along with former ARS research plant physiologist Ross M. Welch—now retired and working as a collaborator with the Ithaca laboratory—and their university collaborators began tests with poultry as a followup to experiments that relied on Caco-2 human digestive system cells, cultured in petri dishes.
    5.One current study with poultry builds upon a Caco-2 study from several years ago in which Glahn, Welch and colleagues determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans.

  42. Cassidy McCarter-4th

    Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. Some investigators are discovering more about natural compounds in foods that increase or, problematically, decrease absorption of iron from those foods. One current study with poultry determined that a natural compound known as kaempferol may be a key culprit in decreasing absorption of iron from red and pinto beans. There’s another side to polyphenols, however. They are antioxidants, and thus are potentially important food components so, the scientists are investigating them further.

  43. Elizabeth Sanders 1st period

    ARTICLE SUMMARY FOR NOVEMBER 9, 2009

    1. Beans like reds, whites, and pintos are rich in iron.
    2. iron is a nutrient essenitial for our health.
    3. Not all beans have iron our bodies can absorb.
    4. The (ARS) are researching about iron.
    5. The (ARS) will began testing this with poultry.

  44. John Baudendistel 4th

    1. Familiar beans like red, whites and pintos are rich in iron, a nutrient essential for our health.
    2. But not all of the little legumes’ treasure trove of iron is bioaccessible- that is avalible for our bodies to readily absorb.
    3.Kaempferol to a class of natural substances known as polyphenols.
    4.They are antioxidents, and thus is potentially important food componets according to Glahn.
    5.There’s another side to polyphenols, however.

  45. kathryn walls 6th period science

    Beans are a nutrient essential for our health.
    There is another side to polyphenols.
    Poultry builds upon a Caco-2.
    Polyphenols belongs to a class of natural substances.
    Glahn and Ross M. Welch are now retired and working as a collaborator with the Ithaca laboratory

  46. rachel whorton 2nd

    Familiar beans like reds,whites,and pinto are rich with iron. Co-investigators are discovering more about natural compounds in foods that increase or decrease of absorption of iron from foods. Not all ligaments of iron are available for are bodies to absorb. A compound call kaempferol may be a key in decreasing iron. So its important to get a lot of iron because it is sentential for our health.

  47. 1. The ARS is researching iron
    2.polyphenols interferes with absorption of iron from beans
    3.polyphenols are antioxidants
    4.So, the scientists are investigating them further.
    5.Some beans are rich in iron which is essential for our health.

  48. 1.)Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health
    2.) Not all of the iron in beans is bioaccessible.
    3.)Scientists discovered earlier this year that human digestive are cultured in petri dishes.
    4.)The beans are antioxidants.
    5.)Some beans are rich in iron which is essential for our health.

  49. 1.Red,white,and pinto beans are rich on iron.
    2.The ARS program is one of the many programs reasearching iron in beans.
    3.Keampforals is a polyphenol.
    4.The beans are antioxidants.
    5.Beans are a nutrient essential for our health.

  50. 1. The ARS research in iron.
    2. The beans are digestive cells.
    3. Poultry builds up caco-2
    4. Beans have antioxidants in them.
    5. Theress another side to polyphenols.

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