Related Experiment Videos
OBSERVATIONS ON STRAWBERRY TEXTURE A THREE-PRONGED APPROACH.
Alina S Szczesniak1, Bertha J Smith1
1General Foods Corporation, Technical Center, Tarrytown, N.Y., U.S.A.
Journal of Texture Studies
|April 4, 2017
Summary
Texture analysis of strawberries reveals that large cells and thin walls lead to damage. Processing and senescence cause cell degradation, resulting in softer, less crisp strawberries with easy juice release.
Area of Science:
- Food science
- Materials science
- Plant biology
Background:
- Understanding strawberry texture is crucial for food processing and consumer acceptance.
- Freeze-drying and storage can significantly alter fruit texture.
- Relating structural changes to textural properties informs preservation strategies.
Purpose of the Study:
- To correlate textural parameters with structural characteristics of strawberries.
- To investigate the effects of fresh, frozen, and rehydrated freeze-dried states on texture.
- To identify the structural basis for texture degradation in strawberries.
Main Methods:
- Combined sensory, instrumental, and microscopic evaluation methods.
- Texture analysis of fresh, frozen, and rehydrated freeze-dried strawberry samples.
- Microscopic examination to assess cellular structure and integrity.
Main Results:
- Large cell size and thin cell walls were associated with increased susceptibility to textural damage.
- Cell wall degradation, cell rupture, and plasmolysis were identified as key factors in softening.
- These structural changes led to a loss of crispness and increased juice release.
- High agreement was observed between sensory, instrumental, and microscopic texture evaluations.
Conclusions:
- Strawberry texture is strongly influenced by cellular structure and integrity.
- Senescence and processing-induced cellular damage are primary causes of texture loss.
- Integrated evaluation methods effectively link structural attributes to perceived and measured texture.