28-05-2017, 11:22 AM
i would like to get details on determination of volume of sugar juice and percentage of sugar in fully grown sugarcane
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determination of sugarcane juice content
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i would like to get details on determination of volume of sugar juice and percentage of sugar in fully grown sugarcane
29-05-2017, 11:37 AM
Around the world, sugarcane is one of the important cash crops used to manufacture various types of sweeteners, such as white sugar and brown sugar1. Measuring the quality of sugar cane in the field is also important to improve the current payment system. At present, the quality of sugar cane is only randomly sampled and measured in factories using sophisticated laboratory equipment. Therefore, it is difficult to ensure that producers are paid appropriately for the quality of their product. Current practice does not strongly encourage growers to pay more attention to improving the quality of their product. India ranks first on the international stage in sugarcane cultivation as well as in sugar production; however, the cost of producing sugar is higher in India. This is due to relatively lower recoveries of sugar per tonne of crushed cane, higher energy consumption and higher losses of sugar in bagasse, filter cake and molasses. Sugar production technologies have undergone a phenomenal change around the world, replacing human skills and conventional or traditional processing methods with automation. Conventional methods for measuring sugar content in sugarcane are IR method, chemical analysis and optical methods. These methods are time consuming and take 2-3 hours. Several investigations have shown that spectroscopic methods can be successfully used to predict sugarcane quality from juice samples, but inadequate preparation of the sample and its mixing with the reagents cause large errors in this method.
An automated procedure is proposed for the spectrophotometric determination of sucrose in sugarcane juice and in nonlasses. The previously diluted and filtered sample is introduced into a flow-injection analyzer designed with two melt streams, producing two sample zones. A zone is conveyed directly to the confluence of the melt stream; The other zone reaches this site after flowing through a heated coil in which the partial and reproducible sucrose inversion is reached under controlled conditions of acidity and temperature. At the confluence point, a buffered period of time is added to oxidize the sugar. Periodate consumption, which mainly reflects the fructose content, is measured spectrophotometrically as a transient decrease in iodine concentration, produced by reaction of the periodate with iodide. The two processed zones proceed sequentially to the flow cell and two peaks are recorded.
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