This report supplements the earlier report (13) which discussed the growth rates, water and mineral nutrient intake by the same group of plants. The data herein considered deal with the chemical composition of the leaf and stem tissues at different growth intervals of pineapple plants grown in nutrient solutions in the greenhouse and in soil under field conditions with different amounts of nitr...

Studies were conducted on the effect of controlled atmosphere storage as well as chemical pretreatments on the quality of lettuce as well as biochemical composition of lettuce leaves, Lactuca sativa L., cultivar "Great Lakes." In a CA of 2.5% CO2 and 2.57 02, the lettuce heads could be stored up to 75 days. Pre-storage treatments with microbeand s6nescenceinhibiting chemicale (Captan, Phaltan, ...

Commonly, microanalysis of plant sugars is conducted on a mg. scale (1); on the microgram level, a general method appears to be lacking. Some calorimetric methods suitable for determination of microgram quantities of sugars are available, but for a combination of high sensitivity and good accuracy these are not very satisfactory. Anthrone, for example, has been used recently to determine sucros...

The pH of the stool and the amount of reducing substances present were observed in 51 normal neonates aged 5 to 8 days. A stool pH of 5 or less was found in 6, 4 of whom were exclusively breast fed. Reducing substances, 0-5% or more, were found in the stools of 16. Stool chromatography in 13 showed lactose, glucose, galactose, or a variable combination of these sugars--that is, a pattern consis...

Utilization of oil palm empty fruit bunch (OPEFB) for bioethanol production with crude cellulase cocktails from locally isolated fungi was studied. Enzymatic saccharification of alkaline pretreated OPEFB was done using different cellulase enzyme preparations. Crude cellulase cocktails from Trichoderma asperellum UPM1 and Aspergillus fumigatus UPM2 produced 8.37 g/L reducing sugars with 0.17 g/g...

In this study, lipid-deprived residuals of microalgae were hydrolyzed for the production of reducing sugars by using the recombinant Bacillus cellulosome, carrying eight genes from the Clostridium thermocellum ATCC27405. The obtained cellulosome was found to exist mostly in the broth supernatant with a cellulosome activity of 2.4 U/mL. Furthermore, the Michaelis-Menten constant (Km) and Vmax of...

This study was conducted to determine the content of carbohydrates and mucilage in roots and leaflets of different Astragalus species for the first time from Iran. The content of reducing sugars, oligosaccharides and polysaccharides in roots of the species were determined spectrophotometrically. The content and sugar composition of the mucilages in leaflets was determined by gravimetry and gas-...