Particle Sizing of Masticated Tree Nuts

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-02-28

Study Completion Date

2016-04-30

Brief Summary

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The investigators want to understand how oral processing (chewing) of nuts affects particle size and the presence of lipid (fat) on the cut surfaces.

The main objective of the study is to:

Measure the size of nut particles that have been chewed sufficiently to be swallowed.

The secondary objective of this study is to:

Measure any changes in lipid content due to chewing and compare it to a prediction from a theoretical model.

The investigators have developed a theoretical model for determining the release of nutrients from plant foods, specifically lipid (fat) from almonds. The model has been used to calculate the amount of lipid released from chewed almonds. The model shows that only about 10% of the lipid is immediately released. The investigators require information on the particle size distribution (number of particles of each size) for other chewed nuts to calculate the amount of lipid released for other nuts. This will allow us to check the validity of our model for other foods.

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Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Blinding Strategy

NONE

Study Groups

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Chewing of nuts

8 samples (4-5 g) of nuts (cashews or walnuts) on two separate visit days.

Group Type EXPERIMENTAL

Chewing of nuts

Intervention Type OTHER

The volunteers will be asked to chew and spit 8 portions (4-5 g) of nuts (cashews or walnuts) on two separate visits. They will provide samples for particle sizing. Two portions will be used as practice samples in order to measure the number of chews. Two portions will be sieved. Two portions will be measured by laser diffraction. Two portions will be frozen for later lipid analysis.

Interventions

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Chewing of nuts

The volunteers will be asked to chew and spit 8 portions (4-5 g) of nuts (cashews or walnuts) on two separate visits. They will provide samples for particle sizing. Two portions will be used as practice samples in order to measure the number of chews. Two portions will be sieved. Two portions will be measured by laser diffraction. Two portions will be frozen for later lipid analysis.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Must be generally healthy
* Must have eaten nuts within the last month with no adverse effects

Exclusion Criteria

* Must not be allergic to nuts of any kind
* Must not have any teeth missing (apart from unerupted wisdom teeth)
* Must not have bleeding gums
* Must not have had dental treatment (other than checkups) in the last 3 months
* Must not be currently suffering from any infectious disease that may be passed on via saliva e.g. Glandular fever, flu

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes