Increased cost of common feedstuffs and increased availability of coproducts from plant-based biofuel manufacturing has enhanced interest in the use of these coproducts in rations for dairy cattle (Donkin and Doane, 2007). Glycerol (commonly marketed as crude glycerine with a glycerol content of approximately 80%) is a coproduct produced during biodiesel production from soybean oil and is becom...

A design of experiments was adopted to assess the optimal conditions for methane production from the macroalgae Sargassum sp. co-digested with glycerol (Gly) and waste frying oil (WFO). Three variables were tested: % total solids of algae (%TSSargassumsp.), co-substrate concentration (gGly/WFOL(-1)), and co-substrate type (Gly or WFO). The biochemical methane potential (BMP) of Sargassum sp. wa...

A new spot test has been developed for the detection of dithiocarbamate fungicides such as mancozeb, propineb and zineb at nkg level in soil and water. The colour formation is based on the decomposition of dithiocarbamate to carbon disulphide which reacts with plumbite i ' alkaline medium to form a brown complex that finally converts to black lead sulphide. The coloured product exists as a brig...