Comparison of physicochemical properties of three types of bamboo shoot powders

Powders were prepared from fresh Phyllostachys pubescens bamboo shoots (P. pubescens), Dendrocalamopsis oldhami bamboo shoots (D.oldhami) and Dendrocalamus latiflorus bamboo shoots (D.latiflorus), and their physical, chemical, adsorption and powder properties were determined. All three of these powders were high in dietary fiber and protein, with P. pubescens powder containing the highest concentration of dietary fiber (50.34 ± 0.65 g∙100 g-1). The water holding, oil holding, and swelling capacities of this powder were all higher than those of the other two kinds of powders. The P. pubescens powder also showed the highest capacity to adsorb glucose, cholesterol and nitrite. In addition, the measured repose and slip angles of this powder were lower than those of the other two powders, indicative of it having good fluidity. And the bulk density and tap density of this powder were significantly higher than those of the others as well, indicative of its superior filling property.