This analysis studied the effects modification on properties of starch-based polymer grafted with acrylonitrile (copolymers). Starch was extracted from bitter yam. The starch modified by heating solution above 70 °C and then esterified phthalic anhydride to produce a pregelatinized phthalated derivative. Acrylonitrile onto natural at 120 using calcium oxide snail shell as initiator. grafting re...

BACKGROUND Particle-stabilised emulsions, so-called Pickering emulsions, are known to possess many beneficial properties, including being extremely stable. Starch granules isolated from quinoa have been used as emulsion stabilising particles. The granules were intact, 1-3 µm in diameter and modified with octenyl succinic anhydride to increase their hydrophobicity. Starch granules, as opposed to...

Starch-based adhesives play a relevant role in paperboard production and are becoming more and more interesting, for different uses, because they are based on renewable biopolymers. Starch modifications or additive addition are becoming frequent to obtain the macroscopic properties desired for specific uses. In this paper the effects of the addition of four different tannins on a typical adhesi...

Previous work has shown increased insulin sensitivity, increased hepatic insulin clearance and lower postprandial insulin responses following treatment with resistant starch, a type of dietary fibre. The objective of this study was to further explore the effects of resistant starch on insulin secretion. Twelve overweight (BMI 28.2±0.4 kg/m(2)) individuals participated in this randomized, subjec...

Ground calcium carbonate (GCC) was modified by starch with the aid of sodium stearate and sodium hexametaphosphate. The GCC was encapsulated within the complex. The effect of the dosages of sodium stearate and sodium hexametaphosphate on the coating weight of modified GCC and the complex utilization rate were studied. The SEM images of modified GCC were compared with that of unmodified GCC. The...

BACKGROUND Resistant starch (RS) is part of potato starch that is not digested in the gastrointestinal tract. RS4 is a chemically modified starch (for example by oxidation and esterification) and physically (by heating). OBJECTIVE The study was aimed at determining the effect of resistant starch on lipid metabolism and activity of hepatic enzymes in Wistar strain rats fed high-fat diets conta...

Tertiary amine-modified corn starches were converted to their basic or hydroxide form and combined with carboxylated butadiene-acrylonitrile copolymer and butadiene-styrene-sulfonic acid polymer to produce ionically bonded filler-elastomer composites. An increasing percentage of the elastomer fraction in the starch-elastomer composite is insolubilized as the starch-to-elastomer ratio increases....

While the beneficial physical properties of silicone polymers are exploited in many sustainable applications, high energy requirement for their synthesis compromises to a degree sustainability. We report strategy mitigate this issue by filling with inexpensive and renewable starch. Elastomeric materials covalently grafted starch, utilizing anhydride-modified silicones, permits loading up about ...