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Novel tetranuclear metal complexes with the formula [(MeM){NC4H3CHNNC(S)NR}(MMe2 )]2 (M = Al, R = i C3H7 (1); M = Ga, R = i C3H7 (2); M = Al, R = Me (3); M = Ga, R = Me (4)) result when pyrrolecarboxaldehyde thiosemicarbazone ligands are mixed with trimethylaluminum and -gallium. Four dinuclear metal compounds with the formula (MMe2)2[SC4H3CHNNC(S)NR] (M = Al, R = i C3H7 (5); M = Ga, R = i C3H7 (6); M = Al, R = C6H5 (7); M = Ga, R = C6H5 (8)) were synthesized by the methane elimination reaction of thiophenecarboxaldehyde thiosemicarbazones with trimethylaluminum and -gallium. The X-ray crystal structures of 1 and 8 are described. The structural data revealed that 1 is a tetranuclear aluminum compound with an eight-membered ring system and 8 is a dinuclear gallium compound with a weak interaction between the pendant thiophene and the gallium center.

Biogas plant with anaerobic digestion is receiving high attention as a facility for both livestock waste treatment and electric power generation. Objective of this study was to perform life cycle assessment (LCA) of a biogas plant which incorporates swine and food waste (7:3) as source materials for biogas production. In addition, the biogas production process was compared with the prevalent composting method as a reference in the aspects of green house gas (GHG) reduction potential and environmental impact. The biogas method was capable of reducing 52 kg CO 2 eq. emission per ton of swine/food waste, but the composting process was estimated to emit 268 kg CO2 eq. into air. The biogas method was evaluated as more beneficial to the environment by mitigating the impact on abiotic depletion potential (ADP), global warming potential (GWP), ozone depletion potential (ODP), eutrophication potential (EP), and photochemical ozone creation potential (POCP), but not to acidification potential (AP).

Persicaside has been isolated as a new alkaloid natural compound from a methanol (EtOA)-soluble extract of Prunus persica seed. It was purified by a combination of chromatographic techniques and recrystallization. The structure of Persicaside was determined by extensive NMR experiments and mass ppectroscopic data. It inhibited nitric oxide (NO) and prostaglandin E 2 (PGE 2 ) production via suppression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2 expression in rat osteoblast sarcoma cells (ROS 17/2.8) in concentration-dependent manner whereas it spares the COX-1 enzyme activity.

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