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Vinegar dressing and cold storage of potatoes lowers postprandial glycaemic and insulinaemic responses in healthy subjects

Leeman, Margareta LU ; Östman, Elin LU and Björck, Inger LU (2005) In European Journal of Clinical Nutrition 59(11). p.1266-1271
Abstract
Objective: To investigate the effects of cold storage and vinegar addition on glycaemic and insulinaemic responses to a potato meal in healthy subjects. Subjects and setting: A total of 13 healthy subjects volunteered for the study, and the tests were performed at Applied Nutrition and Food Chemistry, Lund University, Sweden. Experimental design and test meals: The study included four meals; freshly boiled potatoes, boiled and cold stored potatoes (8 degrees C, 24 h), boiled and cold stored potatoes (8 degrees C, 24 h) with addition of vinaigrette sauce ( 8 g olive oil and 28 g white vinegar (6% acetic acid)) and white wheat bread as reference. All meals contained 50 g available carbohydrates and were served as a breakfast in random order... (More)
Objective: To investigate the effects of cold storage and vinegar addition on glycaemic and insulinaemic responses to a potato meal in healthy subjects. Subjects and setting: A total of 13 healthy subjects volunteered for the study, and the tests were performed at Applied Nutrition and Food Chemistry, Lund University, Sweden. Experimental design and test meals: The study included four meals; freshly boiled potatoes, boiled and cold stored potatoes (8 degrees C, 24 h), boiled and cold stored potatoes (8 degrees C, 24 h) with addition of vinaigrette sauce ( 8 g olive oil and 28 g white vinegar (6% acetic acid)) and white wheat bread as reference. All meals contained 50 g available carbohydrates and were served as a breakfast in random order after an overnight fast. Capillary blood samples were collected at time intervals during 120 min for analysis of blood glucose and serum insulin. Glycaemic (GI) and insulinaemic indices (II) were calculated from the incremental areas using white bread as reference. Results: Cold storage of boiled potatoes increased resistant starch (RS) content significantly from 3.3 to 5.2% ( starch basis). GI and II of cold potatoes added with vinegar (GI/II 96/128) were significantly reduced by 43 and 31%, respectively, compared with GI/II of freshly boiled potatoes (168/185). Furthermore, cold storage per se lowered II with 28% compared with the corresponding value for freshly boiled potatoes. Conclusion: Cold storage of boiled potatoes generated appreciable amounts of RS. Cold storage and addition of vinegar reduced acute glycaemia and insulinaemia in healthy subjects after a potato meal. The results show that the high glycaemic and insulinaemic features commonly associated with potato meals can be reduced by use of vinegar dressing and/or by serving cold potato products. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Clinical Nutrition
volume
59
issue
11
pages
1266 - 1271
publisher
Nature Publishing Group
external identifiers
  • wos:000233019000006
  • pmid:16034360
  • scopus:27844572534
ISSN
1476-5640
DOI
10.1038/sj.ejcn.1602238
language
English
LU publication?
yes
id
45282fe4-e16d-424d-815a-522c08c74934 (old id 151282)
date added to LUP
2007-07-18 09:28:23
date last changed
2017-11-12 03:52:12
@article{45282fe4-e16d-424d-815a-522c08c74934,
  abstract     = {Objective: To investigate the effects of cold storage and vinegar addition on glycaemic and insulinaemic responses to a potato meal in healthy subjects. Subjects and setting: A total of 13 healthy subjects volunteered for the study, and the tests were performed at Applied Nutrition and Food Chemistry, Lund University, Sweden. Experimental design and test meals: The study included four meals; freshly boiled potatoes, boiled and cold stored potatoes (8 degrees C, 24 h), boiled and cold stored potatoes (8 degrees C, 24 h) with addition of vinaigrette sauce ( 8 g olive oil and 28 g white vinegar (6% acetic acid)) and white wheat bread as reference. All meals contained 50 g available carbohydrates and were served as a breakfast in random order after an overnight fast. Capillary blood samples were collected at time intervals during 120 min for analysis of blood glucose and serum insulin. Glycaemic (GI) and insulinaemic indices (II) were calculated from the incremental areas using white bread as reference. Results: Cold storage of boiled potatoes increased resistant starch (RS) content significantly from 3.3 to 5.2% ( starch basis). GI and II of cold potatoes added with vinegar (GI/II 96/128) were significantly reduced by 43 and 31%, respectively, compared with GI/II of freshly boiled potatoes (168/185). Furthermore, cold storage per se lowered II with 28% compared with the corresponding value for freshly boiled potatoes. Conclusion: Cold storage of boiled potatoes generated appreciable amounts of RS. Cold storage and addition of vinegar reduced acute glycaemia and insulinaemia in healthy subjects after a potato meal. The results show that the high glycaemic and insulinaemic features commonly associated with potato meals can be reduced by use of vinegar dressing and/or by serving cold potato products.},
  author       = {Leeman, Margareta and Östman, Elin and Björck, Inger},
  issn         = {1476-5640},
  language     = {eng},
  number       = {11},
  pages        = {1266--1271},
  publisher    = {Nature Publishing Group},
  series       = {European Journal of Clinical Nutrition},
  title        = {Vinegar dressing and cold storage of potatoes lowers postprandial glycaemic and insulinaemic responses in healthy subjects},
  url          = {http://dx.doi.org/10.1038/sj.ejcn.1602238},
  volume       = {59},
  year         = {2005},
}