Physical and chemical properties and chemical composition of maize cob

Abstract

Morphological structure and chemical composition of basic fractions - hard and soft -of maize cob are presented in this paper. Different chemical compositions and physical and chemical properties of these fractions, first of all, their great capability to bind fluid, especially oil and water define their use as an agent for degreasing and drying. A great hardness and abrasive capability of products produced by cob milling have put them to a use for polishing in metalworking industry, while the content of certain compounds (pentosan) is of a very great importance in chemical industry in the manufacturing of furfural and its derivates. Due to their inertness neutral pH values and lack of heavy metals, these products are used as organic carriers in the production of pesticides and agrochemicals, as well as, in cosmetics and pharmacy.

U radu su date fizičko-hemijske karakteristike i hemijski sastav frakcija kukuruznog oklaska dobijenih po originalnoj ZP tehnologiji. Različit hemijski sastav i fizičko-hemijske karakteristike ovih frakcije - celgran A B, C, pre svega visoka sposobnost vezivanja tečnosti, naročito ulja i vode opredeljuju njihovu upotrebu kao medijuma za odmašćivanje i sušenje. Velika tvrdoća i abrazivna sposobnost proizvoda dobijenih mlevenjem oklaska našla je primenu za poliranje u metaloprerađivačkoj industriji, a sadržaj nekih jedinjenja od posebnog je značaja u hemijskoj industriji. Zbog svoje inertnosti, neutralne pH vrednosti i odsustva teških metala ovi proizvodi nalaze primenu kao organski nosači u proizvodnji pesticida i agrohemikalija kao i u kozmetici i farmaciji.