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Comparison of Physicochemical Properties of Starches from Nine Chinese Chestnut Varieties
- Source :
- Molecules, Volume 23, Issue 12, Molecules, Vol 23, Iss 12, p 3248 (2018)
- Publication Year :
- 2018
- Publisher :
- MDPI, 2018.
-
Abstract
- Chestnut is a popular food in many countries and is also an important starch source. In previous studies, physicochemical properties of starches have been compared among different Chinese chestnut varieties growing under different conditions. In this study, nine Chinese chestnut varieties from the same farm were investigated for starch physicochemical properties to exclude the effects of growing conditions. The dry kernels had starch contents from 42.7 to 49.3%. Starches from different varieties had similar morphologies and exhibited round, oval, ellipsoidal, and polygonal shapes with a central hilum and smooth surface. Starch had bimodal size distribution and the volume-weighted mean diameter ranged from 7.2 to 8.2 &mu<br />m among nine varieties. The starches had apparent amylose contents from 23.8 to 27.3% but exhibited the same C-type crystalline structure and similar relative crystallinity, ordered degree, and lamellar structure. The gelatinization onset, peak, and conclusion temperatures ranged from 60.4 to 63.9 &deg<br />C, from 64.8 to 68.3 &deg<br />C, and from 70.5 to 74.5 &deg<br />C, respectively, among nine starches<br />and the peak, hot, breakdown, final, and setback viscosities ranged from 5524 to 6505 mPa s, from 3042 to 3616 mPa s, from 2205 to 2954 mPa s, from 4378 to 4942 mPa s, and from 1326 to 1788 mPa s, respectively. The rapidly digestible starch, slowly digestible starch, and resistant starch ranged from 2.6 to 3.7%, from 5.7 to 12.7%, and from 84.4 to 90.7%, respectively, for native starch, and from 79.6 to 89.5%, from 1.3 to 3.8%, and from 7.1 to 17.4%, respectively, for gelatinized starch.
- Subjects :
- food.ingredient
Chemical Phenomena
Starch
digestion properties
Pharmaceutical Science
Article
Analytical Chemistry
lcsh:QD241-441
chemistry.chemical_compound
Crystallinity
0404 agricultural biotechnology
food
lcsh:Organic chemistry
X-Ray Diffraction
Amylose
Drug Discovery
Scattering, Small Angle
Spectroscopy, Fourier Transform Infrared
Nuts
Food science
Physical and Theoretical Chemistry
Resistant starch
Mean diameter
structural properties
Principal Component Analysis
Calorimetry, Differential Scanning
Chemistry
starch
Organic Chemistry
thermal properties
Temperature
food and beverages
Hippocastanaceae
04 agricultural and veterinary sciences
040401 food science
Chinese chestnut
Smooth surface
Molecular Weight
pasting properties
Chemistry (miscellaneous)
Thermogravimetry
Molecular Medicine
Digestible starch
Iodine
Subjects
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 23
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Molecules
- Accession number :
- edsair.doi.dedup.....60a8575be10c8d60f698f72a41c6b821