Abstract
Banana starch, with its nutritional and functional properties, opens up new opportunities for the food industry, which is seeking new starch sources to fulfil rising demand. Herein, physico-chemical, and functional properties of banana starches isolated from dessert, plantain, and cooking cultivars were investigated. Starch yield was higher in Popoulu (30.58%) and Monthan (27.82%). Starch granules registered irregular forms with granule sizes ranging from 8.9 to 55.09 μm. Among the cultivars, the amylose content was ranged between 25.05 and 31.86%. Total starch (95.86 and 95.60%,) and resistant starch (65.56 and 59.20%) were higher in Saba and Monthan respectively. Flour colour index (86.2–90.6) was higher in banana starches. Differential scanning calorimetry and rapid viscosity studies confirmed that starches from Saba (87.67 and 85.71 °C) Monthan (85.36 and 81.65 °C) have a higher gelatinization property. Banana starches were B and C-type with varying crystallinity levels (21.19–52.01%). The in-vitro starch digestibility revealed that Saba starch has a lower hydrolysis rate with lesser glycemic index. PCA showed the greater impact of amylose and resistant starch content on the grouping of varieties. These findings would be useful for food and non-food industries in terms of using banana starch in various food compositions and other industrial applications.
Original language | English |
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Pages (from-to) | 1056-1067 |
Number of pages | 12 |
Journal | International Journal of Biological Macromolecules |
Volume | 191 |
DOIs | |
State | Published - 30 Nov 2021 |
Bibliographical note
Publisher Copyright:© 2021 Elsevier B.V.
Funding
The authors acknowledge the Director, ICAR-National Research Centre for Banana, Tiruchirappalli, for funding this project through the research grant (IXX12448) from the Indian Council of Agricultural Research, New Delhi, India. We thank Shuprajhaa T, senior research fellow for performing the PCA analysis. We also acknowledge the National Institute of Technology, Trichy for providing instrumentation support for measuring thermal and structural properties. The authors acknowledge the Director, ICAR - National Research Centre for Banana, Tiruchirappalli , for funding this project through the research grant ( IXX12448 ) from the Indian Council of Agricultural Research , New Delhi, India. We thank Shuprajhaa T, senior research fellow for performing the PCA analysis. We also acknowledge the National Institute of Technology, Trichy for providing instrumentation support for measuring thermal and structural properties.
Funders | Funder number |
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ICAR-National | |
Indian Council of Agricultural Research | IXX12448 |
Kumoh National Institute of Technology |
Keywords
- Food industries
- Glycemic index
- Nutrition
- Resistant starch
- Thermal properties