Hemicellulose was separated from bamboo using alkaline method. Silver nanomaterials had been prepared using the hemicellulose as template and silver nitrate as precursor via a green approach. The synthesized samples were characterized by UV-vis, XRD, and SEM techniques. UV-visible spectrum and XRD diffraction pattern revealed that the silver ion (Ag+) had been reduced to the metallic silver nanoparticles (Ag0). The results demonstrated that after calcination at 500 °C in air atmosphere, nano Ag/C compound was obtained. The hemicellulose acted as an effective nanoreactor for the in situ synthesis of silver nanoparticles. This novel procedure provides a facile and environmental way to manufacture silver nanoparticles for various applications.

Low field nuclear magnetic resonance (NMR) was used to study the effect of different contents and types of resistant starch (RS) on dough quality. Inverse recovery (IR) sequence was used to acquire the sample’s NMR relaxation data during dough proofing. Firmness and stickiness were measured by a Texture Analyzer. An increasing trend of firmness and stickiness was observed as the content of resistant starch was increased in the dough. Data showed the appropriate RS content of adding was 5%(g/g). From magnetic resonance image (MRI), the moisture migration and distribution were quite uniform after 1~2h proofing during proofing process. This study showed the advantage of NMR technology, and this method could be used for the development of dough-based products containing RS in food industry.

Nowadays human beings face the crisis and challenge of environmental pollution and energy shortage. The green treatment of low-quality biomass (such as wastewater, waste gas and solid waste), and development of microalgae biofuel are hot spots of pollution treatment and new energy development respectively. Base on the coupling system of microalgae cultivation by slurry (the product of anaerobic digestion of low-quality biomass) and biofuel production by microalgae, it is most likely to achieve an organic integration of the two hot spots, obtaining alternative liquid fuel and realizing slurry purification finally. In addition, there are added benefits can be obtained from the system, such as some high value-added products, animal feed, organic fertilizer, high-absorption materials, and so on. In this paper, combining the latest research advances of our research group, we made a brief analysis of the feasibility of microalgae cultivation by slurry, the characteristics of microalgae cultivation and lipid accumulation, the refining technologies of high calorific value fuel from microalgae, etc., and prospected the coupling system of low-quality biomass treatment and microalgae biofuel production.

The purpose of this study is to preparing high heat value fuels. In present investigation, sodium soap made from microalgae oil was used as the experimental material with significant molecular polarity, then by using microwave heating technology, which may preferentially activate the polar molecule and functional groups of the soap molecular, leading to the high selectivity of decarboxylation. The hydrocarbon content arrived maximum in 900W, when was investigated in different microwave radiation power, obtained pyrolysis liquid similar with high heat value fuel. The hydrocarbon content were usually above 70%. In addition, its density and dynamic viscosity are 0.845-0.870g/cm3 and 2.15-2.70mm2/s.