Abstract: Improved comestibles including foods and drugs are provided, incorporating parenchymal cell cellulose. Improved properties, including physicochemical, rheological and nutritional properties result from such incorporation. Stabilized dispersions, emulsions, foams and frozen materials can preferably be provided through employment of the preferred embodiments.

Abstract: Methods for the isolation of certain biologically important polymers from parenchymal cell-containing plant materials, especially sugar beet and citrus pulp, are disclosed. Hydrolysis under extremes of pH and under elevated temperatures for short reaction periods with physical shearing are disclosed which lead to the isolation of hemicellulosic and cellulosic components of such plant materials without substantial degradation thereof. Novel cellulosic products and vegetable gums are provided having unique physical, chemical and rheological properties.

Abstract: Circulating and non-circulating well-drilling fluids are provided comprising parenchymal cell cellulose. In accordance with a preferred embodiment, improved viscosity and fluid loss control in circulating well-drilling fluids are obtained from the inclusion of parenchymal cell cellulose in such fluids. In accordance with another preferred embodiment, certain polymers, especially anionic polymers, and polymers derived from hemicellulosic materials are admixed with parenchymal cell cellulsoe in well fluids to provide synergistic fluid loss control and other beneficial properties. Methods for the employment of circulating and non-circulating well fluids employing parenchymal cell cellulose are also disclosed.