on experiment was designed for evaluating the nutritienal characteristics and physico-chemical properties of steam treated sugarcane pith (19 bar, 3 min.) and some other roughages. steam treatment resulted in a significant decreased (p<0.05) in ndf (77 vs. 55%), hemicellulose to cellulose ratio (0.54 vs. 0.10) and increased hemicellulose solubility of and soluble sugar fraction (20 vs. 124 mg/g...

The internal pith of a high energy plant, Elephant grass (EG), was more extensively degraded (>50% dry matter) compared to the outer cortex (31%) or the whole stem (35%) by an enzyme preparation from Humicola insolens, Ultraflo. Reducing sugars and acetic acid release from the pith was also higher compared to the cortex. Supplementation of Ultraflo with a type-C feruloyl esterase increased the ...

Using a new NMR correlation-peak imaging technique, we were able to investigate noninvasively the spatial distribution of carbohydrates and amino acids in the hypocotyl of castor bean seedlings. In addition to the expected high sucrose concentration in the phloem area of the vascular bundles, we could also observe high levels of sucrose in the cortex parenchyma, but low levels in the pith paren...

The structure of the lignin in the cortex and pith of elephant grass (Pennisetum purpureum) stems was studied both in situ and in isolated milled "wood" lignins by several analytical methods. The presence of p-coumarate and ferulate in the cortex and pith, as well as in their isolated lignins, was revealed by pyrolysis in the presence of tetramethylammonium hydroxide, and by 2D NMR, and indicat...

The effects of four commercial substrates, a peat-based substrate, and three coir types (coir pith, chips, pith + fibers) on yield, phytochemical accumulation, antioxidant activity were evaluated in Spinacia oleracea L. cv. ‘Manatee’. Soil-blocked spinach seedlings transplanted into Styrofoam planting boxes filled with the substrate. Each box was irrigated daily by drip complete nutrient soluti...

Excised pith tissue from Nicotiana glauca or the tumor-prone hybrid N. glauca x N. langsdorffii has no growth requirement for exogenous cytokinins. Addition of kinetin to cultures of these lines results in growth inhibition at a kinetin concentration 1000-fold lower than the optimal level for kinetin-requiring lines. Cytological comparison of the kinetin-inhibited 2N hybrid and glauca tissues w...

Explants of tobacco pith taken at various distances from the apex of a mature stem show a sharp gradient in growth potential in vitro; growth is highest in the extreme apical and basal explants, and is minimal in explants removed ca. 75 cm from the apex. Calluses produced by the vigorously growing basal explants are harder and more compact than those produced from more apical explants. The grad...

This study assessed the performance of sewage sludge and coir pith as a potential alternative to virgin red soil cover material in bioreactor landfills. Three field scale models anaerobic landfills were set up so materials on leachate generation time, quality quantity. In one reactor (R1), was used kept control. other two reactors (R2 R3), modified materials, respectively. The produced from eac...

As a biological by-product, cornstalk will pose huge threat to the development of sustainable agriculture and environmental protection if it is not fully utilized. In this study, macrostructure was characterized by optical camera chemical composition rind pith Fourier transform infrared spectroscopy (FTIR). The test results show that divided into macroscopically, smooth outside, sponge-like str...