BACKGROUND Rice straw has considerable potential as a raw material for bioethanol production. Popping pretreatment of rice straw prior to downstream enzymatic hydrolysis and fermentation was found to increase cellulose to glucose conversion efficiency. The aim of this study was to investigate the influence of popping pretreatment and determine the optimal enzyme loading using a surface response...

The NIRSystems 6500 spectrophotometer has been used to study analytes in bagasse, shredded cane, direct analysis of cane extracts (DAC), mixed juice, molasses and raw sugar. Analytes included pol, brix, dry solids, moisture, sucrose, glucose, fructose, invert, ethanol, colour, ash and starch. Although Near Infra Red (NIR) is a secondary technique, relying on conventional laboratory procedures f...

The most common way to produce bio-ethanol is fermenting raw materials using suitable microorganism. For this fermentation process to produce ethanol from Artocarpus Heterophyllus which is generally known as jack fruit, Saccharomyces Cerevisiae is used as a microorganism. Saccharomyces is used to produce high yield of ethanol due to its naturally adopting property and its high tolerance rate of...

The low cost of the personal computer (PC) has made it the ideal vehicle for monitoring processes in factories and laboratories. Software developed at the Sugar Milling Research Institute (SMRI) has resulted in two PC systems that are capable of simultaneously receiving a number of signals, monitoring these graphically in real time and of storing the data for subsequent analysis. A ten-channel ...

The impact of the war in Ukraine on agriculture and its consequences staple foods are analyzed. price trade levels main agricultural products before after conflict studied. Their European sector multiplier effect independent sugar is explored. A historical comparative analysis used to support this research. Three reasons for instability because have been identified: reduced production, increase...

This article describes the results of research conducted on drying different types apricots. Experiments were to study chemical composition apricots, quality finished product after in three ways, and duration drying. During period, biochemical fruits selected as raw materials was regularly analyzed. The highest indicator amount dry matter observed, three-year average indicators studied. Sugar i...

Background Lignocellulosic biomass is an attractive raw material for bioethanol production since it is an abundant and renewable feedstock that does not compete with food and feed production [1]. Xylose is the most abundant pentose present on these feedstocks, and although S. cerevisiae cannot readily ferment this sugar, the overexpression of the genes for xylose reductase (XR) and xylitol dehi...

A prewashing step was used to remove ash from straw pulping solid residue (waste wheat straw, WWS) prior to pretreatment and enzymatic hydrolysis. The effects of prewashing on the effectiveness of liquid hot water pretreatment (LHWP) and dilute acid pretreatment (DAP) were investigated. Prewashing effectively removed the ash in raw WWS. However, a certain amount of polysaccharides was also remo...

A new method for dextran quantification has been developed and field-trialled in Jamaica, in association with the Sugar Industry Research Institute. The method uses a near infrared (NIR) polarimeter and a specific dextranase. The dextranase selectively breaks down the dextran into sugars of lesser specific rotations without affecting any other substance present in the juice. The initial dextran...

Sugar beet pulp (SBP) is the raffinate of sugar extraction. Composed of empty vegetal cells, three quarters of it consist of polysaccharides. As it is cheap and produced in great quantities SBP is a potential raw material for industrial applications other than cattle feeding. Twin-screw extrusion modified its structure and destructuring level depended on the specific mechanical energy provided ...