title: Impact of resistant starch in three plantain (Musa AAB) products on glycaemic response of healthy volunteers.
abstract: OBJECTIVE
  Plantains can be eaten in various forms providing a good opportunity to study the effect of starch type on glycaemic response, and so three products differing in their types of available carbohydrate and contents of resistant starch were tested.
  
  
  METHODS
  Boiled unripe plantain (BUP), boiled unripe plantain crisps (BUPC), ripe raw plantain (RRP) and white bread as reference (all 25 g available carbohydrate portion) were given to ten pre-screened healthy individuals. Postprandial glycaemic responses and glycaemic indices (GI) were measured.
  
  
  RESULTS
  Peak blood glucose for BUP, BUPC and RRP was at 45, 45 and 30 min post-meal time, respectively. The peak blood glucose concentrations for BUP, BUPC and RRP (1.8 ± 0.8, 2.3 ± 0.8, 1.9 ± 0.7 mmol/L, n = 10, respectively) reflected the in vitro quantities/types of rapidly available glucose (RAG) in the samples. On the other hand, mean GI ± SEM values obtained for the test products (BUP = 44.9 ± 3.6, BUPC = 55.0 ± 4.2, RRP = 38 ± 4.4, n = 10) were neither significantly different nor directly correlated with RAG.
  
  
  CONCLUSIONS
  The results show a potential link between RAG and GI, but the correlation is confounded by the presence of other constituents in the plantains.
authors.affiliation: Chemistry Department, Federal University of Technology, Akure, Nigeria.|School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK.
authors.forename: Ebun-Oluwa
authors.initials: EO
authors.lastname: Oladele
authors.affiliation: School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK. G.williamson@leeds.ac.uk.
authors.forename: Gary
authors.initials: G
authors.lastname: Williamson
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000378:metabolism*; D015992:Body Mass Index; D001939:Bread; D004040:Dietary Carbohydrates / Q000008:administration & dosage / Q000032:analysis; D005260:Female; D038321:Glycemic Index; D064368:Healthy Volunteers; D006801:Humans; D007328:Insulin / Q000097:blood; D008297:Male; D028521:Musa / Q000737:chemistry* / Q000145:classification; D064787:Portion Size; D019518:Postprandial Period; D013213:Starch / Q000008:administration & dosage* / Q000032:analysis; D011795:Surveys and Questionnaires; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D004040:Dietary Carbohydrates; D007328:Insulin; D013213:Starch
keywords: Available carbohydrates; Glycaemic index; Glycaemic response; Plantain; Resistant starch