Abstract: An improvement in a process for the preparation of neutralized urea aldehyde polmeric dispersions by acid catalyzed reaction of urea with formaldehyde plus a higher aldehyde having from two to four carbon atoms wherein the improvement comprises reacting urea with formaldehyde and a polyfunctional aldehyde selected from the group consisting of a dialdehyde of from 2 to 5 carbon atoms or a polymer of formaldehyde such as a hydroxyaldehyde or polysaccharide which has a reactive, reducible aldehyde group wherein the mole ratio of formaldehyde to the polyfunctional aldehyde is at least 3:1. The products are useful as long term, sprayable fertilizers, especially for grasses.

Abstract: A method for the preparation of .alpha.-L-aspartyl-L-phenylalanine methylester, which method comprises reacting an ester of L-phenylalanine with N and .alpha.-carboxyl-protected L-aspartic acid, to produce an .alpha.-L-aspartyl-L-phenylalanine methylester without racemization and isomer formation and in high yields.

Abstract: A method for preparing an .alpha.-L-aspartyl-L-phenylalanine alkyl ester, which method comprises: reacting a divalent alkali salt of aspartic acid, having an amino-protective group, with an organic halo ester compound, to form a monovalent, alkali-salt, mixed,anhydride aspartate compound; and condensing the mixed,anhydride aspartate compound with an alkyl ester of L-phenylalanine under alkaline conditions and reducing the pH to an acidic condition after condensation to free the amino and carboxyl groups, to form a mixture consisting essentially of the alpha and beta alkyl ester of .alpha.-L-aspartyl-L-phenylalanine.

Abstract: Artificial-sweetening compositions, useful as a low-calorie sweetening agent in the sweetening of foodstuff, and other low-calorie products are prepared by solubilizing 2,4,6,3'-tetrahydroxy-4'-methoxydihydrochalcone by combination and interaction of the water-insoluble dihydrochalcone with hydroxy-containing organic compounds, to provide water-soluble dihydrochalcone having enhanced sweetening power and improved aftertaste properties.

Abstract: A neohesperidin dihydrochalcone-based sweetener composition which comprises neohesperidin dihydrochalcone, a water-soluble carrier, and optionally a taste modifier, the composition having an acidic pH and characterized by being a water-soluble, nondiscoloring composition with reduced or devoid of undesirable lingering aftertaste properties.