Hierarchical Structure, Gelatinization, and Digestion Characteristics of Starch from Longan (Dimocarpus longan Lour.) Seeds
Abstract
:1. Introduction
2. Results and Discussion
2.1. Chemical Composition of Longan Seeds
2.2. Granular Structure
2.3. Crystalline Structure
2.4. Molecular Structure
2.5. Thermal Properties
2.6. In Vitro Starch Digestibility
3. Materials and Methods
3.1. Materials
3.2. Composition of Longan Seeds
3.3. Isolation of Starch from Longan Seeds
3.4. Starch Morphology
3.5. X-ray Diffraction
3.6. Molecular Structure
3.7. Thermal Properties
3.8. In Vitro Starch Digestibility
3.9. Statistical Analysis
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample Availability: Samples of the compounds are available from the authors. |
Cultivar | Starch Content (%) | Protein Content (%) | Fat Content (%) |
---|---|---|---|
Chuliang | 44.9 ± 0.4 a | 6.0 ± 0.0 c | 3.4 ± 0.2 a |
Shixia | 46.2 ± 1.5 a | 8.1 ± 0.0 a | 2.0 ± 0.0 b |
Caopu | 49.5 ± 1.6 a | 7.6 ± 0.0 b | 2.5 ± 0.0 b |
Source | Amylose Content (%) | To | Tp | Tc | ∆H |
---|---|---|---|---|---|
(°C) | (°C) | (°C) | (J/g) | ||
Chuliang | 26.7 ± 0.9 b | 72.3 ± 0.4 b | 80.5 ± 0.1 a | 88.3 ± 0.3 a | 16.4 ± 0.4 a |
Shixia | 26.6 ± 0.3 b | 72.8 ± 0.1 b | 79.0 ± 0.1 a,b | 85.6 ± 0.0 b | 15.6 ± 0.2 a |
Caopu | 30.1 ± 0.8 a | 69.6 ± 0.4 c | 76.7 ± 0.3 b | 84.4 ± 0.5 c | 13.5 ± 0.5 b |
Maize | 29.1 ± 0.2 a,b | 75.4 ± 0.8 a | 79.2 ± 0.9 a,b | 88.0 ± 0.0 a | 10.3 ± 0.6 c |
Source | k (10−3 min−1) | |
---|---|---|
Raw Starch | Gelatinized Starch | |
Chuliang | 7.7 ± 0.2 b | 45.2 ± 2.8 a |
Shixia | 8.9 ± 0.4 a | 45.1 ± 1.1 a |
Caopu | 6.6 ± 0.0 c | 44.3 ± 0.6 a |
Maize | 8.5 ± 0.0 a,b | 45.8 ± 0.6 a |
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Hu, Z.; Zhao, L.; Hu, Z.; Wang, K. Hierarchical Structure, Gelatinization, and Digestion Characteristics of Starch from Longan (Dimocarpus longan Lour.) Seeds. Molecules 2018, 23, 3262. https://doi.org/10.3390/molecules23123262
Hu Z, Zhao L, Hu Z, Wang K. Hierarchical Structure, Gelatinization, and Digestion Characteristics of Starch from Longan (Dimocarpus longan Lour.) Seeds. Molecules. 2018; 23(12):3262. https://doi.org/10.3390/molecules23123262
Chicago/Turabian StyleHu, Ziman, Lei Zhao, Zhuoyan Hu, and Kai Wang. 2018. "Hierarchical Structure, Gelatinization, and Digestion Characteristics of Starch from Longan (Dimocarpus longan Lour.) Seeds" Molecules 23, no. 12: 3262. https://doi.org/10.3390/molecules23123262