Characterizing Emmer Seeds and Flours, and Determining the Glycemic Effects of Emmer Breads

Characterizing the Technological Properties of Emmer Seeds, Flour, and Bread; and Determining the Effect of Emmer Breads on Glycemic Responses in Healthy Humans

This study characterized emmer seeds, flours, and breads, and investigated the effects of emmer breads on the glycemic response

Study Overview

• Status: Completed
• Conditions: Appetitive Behavior; Potential Abnormality of Glucose Tolerance
• Intervention / Treatment: Other: Glucose as reference food; Other: Emmer bread from Greek emmer; Other: Emmer bread from Italian emmer; Other: Whole wheat commercial bread

Detailed Description

This study aimed to 1. describe the technological characteristics of emmer seeds, flours, and breads, 2. determine the glycemic index and glycemic load of two emmer breads, and 3. to investigate the effects of these breads on postprandial glycemic response in healthy subjects

• Study Type: Interventional
• Enrollment (Actual): 14
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Greece
  • Attica
    • Athens, Attica, Greece, 11855
      • Agricultural University of Athens

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 25 years (ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• healthy
• non-smoking
• non-diabetic men and women
• body mass index (BMI) between 18 and 27 kg/m2

Exclusion Criteria:

• severe chronic disease (e.g. coronary heart disease, diabetes mellitus,kidney or liver conditions, endocrine conditions)
• gastrointestinal disorders
• pregnancy
• lactation
• competitive sports
• alcohol
• drug dependency

Study Plan

How is the study designed?

Design Details

• Primary Purpose: OTHER
• Allocation: RANDOMIZED
• Interventional Model: CROSSOVER
• Masking: SINGLE

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Glucose as reference food; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.	Other: Glucose as reference food; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g glucose diluted in 300ml water, tested three times, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Greek emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Greek emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Italian emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Italian emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Whole wheat commercial bread; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from whole wheat commercial bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.
EXPERIMENTAL: Emmer bread from Greek emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.	Other: Glucose as reference food; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g glucose diluted in 300ml water, tested three times, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Greek emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Greek emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Italian emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Italian emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Whole wheat commercial bread; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from whole wheat commercial bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.
EXPERIMENTAL: Emmer bread from Italian emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.	Other: Glucose as reference food; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g glucose diluted in 300ml water, tested three times, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Greek emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Greek emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Italian emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Italian emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Whole wheat commercial bread; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from whole wheat commercial bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.
EXPERIMENTAL: Whole wheat commercial bread; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 12hr fast, consumed 50g available carbohydrates from D-glucose, three times, in different visits as reference food along with 300ml water; and 50g available carbohydrates from emmer bread from Greek emmer seeds, emmer bread from Italian emmer seeds, and whole wheat commercial soft bread, tested once, in different visits. there was a washout period of 2 days between visits. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min after food consumption. The first glucose sample was taken exactly 15min after the first bite of food or drink.	Other: Glucose as reference food; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g glucose diluted in 300ml water, tested three times, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Greek emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Greek emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Emmer bread from Italian emmer; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from Italian emmer bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.; Other: Whole wheat commercial bread; Fourteen healthy, normal weight subjects (male: 6, female: 8) after 10-14 hr fast, consumed 50g available carbohydrates from whole wheat commercial bread, tested once, in different visits, within 5-10min. Fingertip capillary blood glucose samples were taken at baseline, 15, 30, 45, 60, 90 and 120min.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Capillary blood glucose responses	Clinically useful change in blood glucose, defined as the restoration of glucose within normal limits during the 2hr glucose tolerance test	2 hours

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Subjective appetite ratings	Useful change in subjective appetite using visual analogue scales with a score 0 to 10 (given in the form of booklet,one scale per page) at baseline, 15, 30, 45, 60, 90 and 120 min. The minimum or maximum score will be evaluated if it is better or worse depending on the appetite variable e.g hunger, satiety, desire to eat etc.	2 hours
Blood pressure	Useful change in systolic and diastolic blood pressure before and 2hr after consumption of the breads	2 hours

Collaborators and Investigators

• Sponsor: Agricultural University of Athens

Study record dates

Study Major Dates

• Study Start (ACTUAL): August 1, 2019
• Primary Completion (ACTUAL): November 1, 2019
• Study Completion (ACTUAL): November 1, 2019

Study Registration Dates

• First Submitted: April 21, 2021
• First Submitted That Met QC Criteria: April 21, 2021
• First Posted (ACTUAL): April 26, 2021

Study Record Updates

• Last Update Posted (ACTUAL): April 26, 2021
• Last Update Submitted That Met QC Criteria: April 21, 2021
• Last Verified: April 1, 2021

More Information

Terms related to this study

• Keywords: glycemic index; blood pressure; blood glucose; glycemic load; emmer bread
• Additional Relevant MeSH Terms: Congenital Abnormalities
• Other Study ID Numbers: HRBD 39 12/07/2019

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No