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Microscopic and spe...
Microscopic and spectroscopic characterization of rice and corn starch
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Govindaraju, Indira (author)
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Pallen, Sparsha (author)
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Umashankar, Suchitta (author)
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Mal, Sib Sankar (author)
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Kaniyala Melanthota, Sindhoora (author)
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- Mahato, Dhani Ram (author)
- Umeå universitet,Kemiska institutionen
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Zhuo, Guan-Yu (author)
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Mahato, Krishna Kishore (author)
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Mazumder, Nirmal (author)
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(creator_code:org_t)
- 2020-01-08
- 2020
- English.
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In: Microscopy research and technique (Print). - : John Wiley & Sons. - 1059-910X .- 1097-0029. ; 83:5, s. 490-498
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Starch granules from rice and corn were isolated, and their molecular mechanism on interaction with alpha-amylase was characterized through biochemical test, microscopic imaging, and spectroscopic measurements. The micro-scale structure of starch granules were observed under an optical microscope and their average size was in the range 1-100 mu m. The surface topological structures of starch with micro-holes due to the effect of alpha- amylase were also visualized under scanning electron microscope. The crystallinity was confirmed by X-ray diffraction patterns as well as second-harmonic generation microscopy. The change in chemical bonds before and after hydrolysis of the starch granules by alpha- amylase was determined by Fourier transform infrared spectroscopy. Combination of microscopy and spectroscopy techniques relates structural and chemical features that explain starch enzymatic hydrolysis which will provide a valid basis for future studies in food science and insights into the energy transformation dynamics.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Fourier transform infrared spectroscopy
- optical microscope
- scanning electron microscope
- starch
- X-ray diffraction
Publication and Content Type
- ref (subject category)
- art (subject category)
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