This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How do heat and acid affect the green chlorophyll molecule? ... (Read 25 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
on: Aug 19, 2018
How do heat and acid affect the green chlorophyll molecule?

Question 2

Name a fruit and a vegetable that contain anthocyanin pigments.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mbcrismon

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Aug 19, 2018
Answer to Question 1

When heat is applied to products that contain green chlorophyll, the product will change to a bright green color; however, prolonged heating will result in the formation of pheophytins, causing the vegetable to turn an olive-green/brown. The release of natural organic acids when cooking or the addition of acids will also result in pheophytin formation and a brownish color.

Answer to Question 2

Vegetables that contain anthocyanin pigments include red cabbage, eggplant, radish, and red potatoes. Fruits that contain anthocyanin pigments include cherries, blueberries, strawberries, plums, and purple grapes.


tichca

  • Hero Member
  • *****
  • Posts: 554
Reply #2 on: Aug 19, 2018
Thank you!


mbcrismon

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Aug 19, 2018
Always glad to help...


« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and
Saturated and Unsaturated Fatty Acid Saturated and Unsaturated Fatty Acid
3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid 3D Plant Layout - Side View for Dual-Stage Pressure Production of Nitric Acid
Transport of acetyl units and reducing equivalents used in fatty acid synthesis Transport of acetyl units and reducing equivalents used in fatty acid synthesis
Fate of the Amino acid carbon skeletons Fate of the Amino acid carbon skeletons
Video: Metabolic Rate, Heat and Thermoregulation - response to heat and cold stresses

For a complete list of videos, visit our video library