Comparison of the effects of calcified green macroalga (Halimeda macroloba Decaisne) and commercial CaCO on the properties of composite starch foam trays.

The calcified green macroalga, Halimeda macroloba, is a source of bio-based calcium carbonate which can be used as a filler in starch foam tray. In the first part of this study, the composition and structure of calcium carbonate of this species were investigated using Fourier transform infrared spectrometry (FTIR), X-ray diffraction (XRD), Energy dispersive X-ray spectroscopy (EDX) and Scanning election microscopy (SEM). The morphology of the macroalgal powder particles was rod-like and organic materials (e.

Transforming fish scale waste into an efficient filler for starch foam.

In this work modified fish scale waste (FS) was used as a filler in order to improve the properties of starch foam prepared by a baking process. The FS was modified under two calcination conditions: at 500 °C for 5 h and at 700 °C for 3 h. The FS powder calcined at 700 °C for 3 h (FS700-3) had higher Ca content and lower protein content and was the filler chosen for experimental study of the effects of its addition on the properties of the starch foam.