Composition of Corn Hull Dietary Fiber

Abstract

The corn hull dietary fiber was decomposed into their components such as cellulose, hemicellulose‐A, ‐B, ‐C, ‐other and lignin by the Siegel method, and their contents were 16%, 1%, 57%, 14% and 2%, respectivity. The components of ordinary corn fiber were insoluble in water, but several decomposed fractions were able to dissolved. The solubility in water of hemicellulose‐B was well and of hemicellulose A was slightly, but other fractions were insoluble. Hemicellulose‐A, ‐B, ‐C and ‐other fractions were made up of about 30% of arabinose and 50% of xylose. Uronic acid contents and solubility in water of each hemicellulose fraction were mutually related.

Comparison of overall water uptake by corn kernel with and without dissolved calcium hydroxide at room temperature

“…This make possible that the fissures in the inner layer of the pericarp are more open and the alkaline solution diffuse through these fissures without any difference between different Ca(OH) 2 concentrations. The latter is due to the fact that the alkaline solution diffuses without any reaction with the cell walls of the pericarp, which are mainly composed by heteroxylans and cellulose (Sugawara, Suzuki, Totsuka, Takeuchi, & Ueki, 1994). Different to the Cacahuazintle corn the Yellow Dent and Chalco corn show that in the first minute of soaking time an initial uptake of water occurs which depends on the Ca(OH) 2 concentrations, see stage 1 in Figs.…”

Preparation and characterization of starch‐based composite films reinforced by corn and wheat hulls

“…Wheat hulls contain more than 55% cellulose with protein (20%), starch (10%), and other compounds, [38][39][40] whereas corn hulls contain about 60% cellulose with protein (10%), starch (20%), and other compounds. [41][42][43] Cereal lignocellulosic raw materials have been used for the development of composites with polypropylene, polyethylene, polyester, poly(vinyl acetate), polyurethane, poly(3hydroxybutyrate-co-3-hydroxyvalearate), and Novolac resin. 38,44,45 These lignocellulosic cereal residues are renewable fibers and are abundantly available throughout the world.…”

“…Both wheat and corn hulls are lignocellulosic waste products. Wheat hulls contain more than 55% cellulose with protein (20%), starch (10%), and other compounds, whereas corn hulls contain about 60% cellulose with protein (10%), starch (20%), and other compounds . Cereal lignocellulosic raw materials have been used for the development of composites with polypropylene, polyethylene, polyester, poly(vinyl acetate), polyurethane, poly(3‐hydroxybutyrate‐ co ‐3‐hydroxyvalearate), and Novolac resin .…”

Heat extraction of corn fiber hemicellulose

“…possibility to develop environmentally sound technologies and products (3). Xylan-based dietary fibers (4) can lower blood cholesterol level (5), reduce stomach ulcer lesions (6), stimulate the growth of intestinal Bifidobacteria (7), and xylans might act as human immunodeficiency virus inhibitor as well (8). Hemicelluloses have acceptable odor, low-caloric values, and are noncarcinogenic; thus, as filler substances they could be part of novel, fortified, and specialty foods as well, which are tools of antiobesity diets and enteral nutrition.…”