Various manufacturers especially in the chemical, pharmaceutical and food industries employ sugars in their products. Sugars can be extracted from plant or microbial sources or they can be chemically synthesized. The majority of sugars are purchased as crystalline white powders and the most common examples are glucose, sucrose, lactose, fructose, maltose and xylitol. Protein-based sweeteners su...

A cDNA clone (pUP-23) corresponding to a member of a protein family that includes inhibitors of trypsin and of heterologous alpha-amylases has been selected from a library derived from developing barley endosperm and its sequence has been determined. A stretch of 95 nucleotides that included the signal peptide and the first 8 residues of the mature protein was found to be homologous to an exact...

A two-dimensional gel electrophoresis system that combines a cationic polyacrylamide gel electrophoresis at pH near neutrality with sodium dodecyl sulfate-polyacrylamide gel electrophoresis was used to analyze the spectrum of basic polypeptides that accumulate in bean (Phaseolus vulgaris) abscission zones after treatment with ethylene. Results showed that, as abscission progressed, at least sev...