Sulawesi endemic tubers and perimedular flour properties an initial consideration for alternative sources for food starch ingredient
2022
Moko, E. M. | Rahardiyan, D. | Ngangi, J. | Yalindua, A.
North Sulawesi is located in the North-Eastern regions of the Indonesian Archipelago. As it is with most parts of Indonesia, North Sulawesi is dependent on rice as their staple food. Not all islands within the North Sulawesi cluster of islands can grow paddy or corn for their carbohydrate needs or starch ingredients in their diet and must have them shipped from other places with the dire consequences of transportation costs. The endemic biodiversity of these islands also has many plants with the potential as an alternative food carbohydrate source. This study was to explore these endemic plants for potential food ingredients for starch replacements for rice and corn. The many diversities available for these starch ingredients amongst them are tuber sources (Taro – Colocasia esculenta, Dalugha – Cyrtosperma merkusii, Gembili – Discorea esculenta and Banggai – Discorea alata) and perimedular sources (Sago Tanah and Sago Baruk). Many studies have researched these plants individually in various originating from many other parts of the world, but not many have made a head-to-head comparison and explored the potentials of these underutilized plants as starch food ingredients. This study extracted starches of these plants in a standardized manner and compared the properties side-by-side. These plants were found to be potentially healthy alternatives to rice as functional food starch with lower digestibility which would lead to lower GI staples, especially for the livelihoods of North Sulawesi coastal dwellers.
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