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In vitro hydrolysis and estimated glycemic index of jackfruit seed starch prepared by improved extrusion cooking technology. 2019

Yutong Zhang, and Yanjun Zhang, and Bo Li, and Xuefei Wang, and Fei Xu, and Kexue Zhu, and Lehe Tan, and Wenjiang Dong, and Zhong Chu, and Shize Li
College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China; Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning 571533, Hainan, China.

The effect of improved extrusion cooking technology (IECT) on jackfruit seed starch (JFSS) digestion properties was investigated by the in vitro starch hydrolysis, hydrolysis index (HI) and glycaemic index (GI). The IECT markedly increased the content of rapidly digestible starch (RDS), slowly digestible starch (SDS), equilibrium concentration (C∞), HI, GI, and the rate of starch digestion but decreased in resistant starch (RS). Increasing the temperature and screw speed resulted in significant increases in SDS, C∞, HI, GI, and decreases in RDS, RS content. The scanning electron microscope demonstrated the digestion result that the JFSS changed from more compact structure to more loose polyhedral and from fewer pits to number of hollows. However, the opposite results were observed for increasing moisture content. All these results suggested that the in vitro digestibility of the high amylose and small granules JFSS can be efficiently enhanced by the improved extrusion cooking treatment.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D003296 Cooking The art or practice of preparing food. It includes the preparation of special foods for diets in various diseases. Cookery
D004063 Digestion The process of breakdown of food for metabolism and use by the body.
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D012639 Seeds The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield. Diaspores,Elaiosomes,Embryos, Plant,Plant Embryos,Plant Zygotes,Zygotes, Plant,Diaspore,Elaiosome,Embryo, Plant,Plant Embryo,Plant Zygote,Seed,Zygote, Plant
D013213 Starch Any of a group of polysaccharides of the general formula (C6-H10-O5)n, composed of a long-chain polymer of glucose in the form of amylose and amylopectin. It is the chief storage form of energy reserve (carbohydrates) in plants. Amylomaize Starch,Amylum,Cornstarch,Keoflo,Starch, Amylomaize
D019518 Postprandial Period The time frame after a meal or FOOD INTAKE. Postcibal Period,Period, Postcibal,Period, Postprandial,Periods, Postcibal,Periods, Postprandial,Postcibal Periods,Postprandial Periods
D031622 Artocarpus A plant genus of the family MORACEAE. Puag-haad extract, from A. lakoocha, contains STILBENES and related 4-substituted RESORCINOLS. Artocarpus altilis,Artocarpus communis,Artocarpus heterophylla,Artocarpus heterophyllus,Breadfruit,Breadfruit Plant,Jackfruit,Jackfruit Plant,Breadfruit Plants,Breadfruits,Jackfruit Plants,Jackfruits
D038321 Glycemic Index A numerical system of measuring the rate of BLOOD GLUCOSE generation from a particular food item as compared to a reference item, such as glucose Glycemic Index Number,Glycemic Index Numbers,Glycemic Indices

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