Comparison of Amaranthus cruentus and Zea mays L. stach characteristics

Abstract

Starch is a very important, naturally renewable and relatively inexpensive raw material. Since the current industrial production establishes demands pertaining starch quality, a greater attention has been paid to development and improvement of existing technological procedures for starch isolated from different botanical sources. This paper describes the procedure for amaranth starch isolation. Starch was isolated from Amaranthus cruentus seeds by low alkaline steeping and protease treatments. The properties of isolated amaranth starch were analyzed and compared with those of normal and waxy maize starches.

Skrob je veoma važan prirodno obnovljiv i relativno jevtin sirovinski materijal. Pošto moderna industrija postavlja određene zahteve u pogledu njegovog kvaliteta, razvoju novih i unapređenju postojećih tehnoloških postupaka za dobijanje skroba različitog botaničkog porekla pridaje se sve veći značaj. U ovom radu opisan je postupak za dobijanje skroba alkalnom ekstrakcijom. Skrob je izolovan iz semena vrste Amaranthus cruentus primenom alkalnog močenja i enzimskog tretmana. Osobine izolovanog skroba ispitivane su različitim metodama i poređene sa osobinama normalnog i voštanog kukuruznog skroba.