期刊
FOOD HYDROCOLLOIDS
卷 122, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.107042
关键词
Amylose; Starch granule; Microwave irradiation; Resistant starch; Pre-treatment
资金
- Sarawak Research and Development Council, Malaysia [RDCRG/CAT/2019/26]
- Ministry for Higher Education Malaysia
- Universiti Malaysia Sarawak
After modification, sago starch exhibited improved solubility in water, oil and water binding capacity, and resistant starch content in cooked samples, along with changes in granule morphology and increase in amylose content and double helix degree. Further research is needed to explore the potential of modified starch as a low glycemic food ingredient.
Sago starch is an underutilized starch due to its low functionality in the formulation of food products. Starch modification can enhance the functionality and functional food properties such as solubility and resistant starch content, respectively. The sago starch was treated by microwave heat treatment with two different pre-treatment which were washing (WMHT) or cold-soaking (SMHT). The modified starches exhibit better solubility in water (95 degrees C), oil and water binding capacity, and resistant starch (RS) content of cooked samples compared to its native. Additionally, an increase in amylose content and degree of double helix together with morphological changes on the starch granules (WMHT) were also observed. In conclusion, the changes in granules morphology and availability of amylose content by the treatments had influenced the improved some of the starch functionality and RS content. Further study is required to determine the potential of the modified starch as a low glycaemic food ingredient.
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