Effect of controlled differential sieving processing on micronutrient contents and in vivo antioxidant activities of L. calyxes powder.

Sun-dried calyxes of were finely grinded and fractionated by controlled differential sieving processing (CDSp) into four granulometric classes. The obtained powder fractions were examined for their micronutrient contents and in vivo antioxidant properties in high-fat diet induced oxidation model rats. Unsieved powder and lyophilized ethanolic extract were used for comparison.

Micronutrients and in vivo antioxidant properties of powder fractions and ethanolic extract of Forssk. fruits.

powders were processed by sieve fractionation and ethanolic extraction followed by freeze-drying. The micronutrient contents and the in vivo antioxidant properties of powder fractions in rats' high-fat diet-induced oxidation model were determined. Sieved fractionation was achieved by finely grinding the Dichrostachys fruits and fractionating on a sieve column to retain particle of sizes <180, 180-212, 212-315, and ≥315 µm.

Effect of sieved fractionation on the physical, flow and hydration properties of Lam., Forssk. and L. powders.

This study aimed at evaluating the effect of successive grinding and sieving processes on the physicochemical properties of powders obtained from seeds fruits and calyxes. Plant powders were fractionated into four granulometric classes and their properties were compared to those of unsieved powders. Mean particle size exerted a significant influence ( < 0.

Successive grinding and sieving as a new tool to fractionate polyphenols and antioxidants of plants powders: Application to seeds, fruits, and calyx powders.

The present investigation aimed at evaluating the effect of powder fractionation based on particle size on the chemical composition in macronutrients, polyphenol contents, and antioxidant properties of powders of seeds, fruits, and calyces. Significant differences ( < 0.05) among granulometric classes of each plant were observed for the chemical composition in macronutrients.