Effect of sulphur on quality of sugarcane juice and jaggery.

Results of the experiment conducted in sandy loam soils during 2006-07 and 2007-08 revealed that quality parameters of cane juice and jaggery were positively and significantly influenced by the application of sulphur irrespective of sources of sulphur. Application of sulphur at 100kg/ha had significantly influenced the quality of juice but it was comparable with the application of sulphur at 80kg/ha which was reflected in quality of jaggery. There is an increase of 1.27 units in juice sucrose was observed with the application of sulphur at 80kg/ha. But sources did not differ markedly on juice quality and jaggery quality parameters. As Gypsum is cheapest source compared to Elemental sulphur, it can be concluded that maximum returns can be obtained at 80 kg S/ha through Gypsum application.

Evaluation of promising sugarcane varieties for jaggery yield and quality.

Six promising sugarcane varieties were evaluated along with one check variety for yield and quality of jaggery suitable for southern zone of Andhra Pradesh. Among the varieties 97R272, 86V96 and 93A145 are classified as excellent jaggery varieties along with check Co 62175 which is known for better jaggery variety in the zone. All the quality parameters viz., sucrose %, color, reducing sugars, non reducing sugars and NRV were determined and classified the varieties. 97R272, 86V96 and 93A145 can be recommended for cultivation in jaggery area of Southern zone of Andhra Pradesh.

External pixe – A novel approach for determining trace elements in fermentation process.

External Particle Induced X-ray Emission technique was employed in the study of submerged fermentation of ethanol from Jaggery using Saccharomyces cerevisiae as the organism. Effect of KNO3 as a nitrogen source was studied and the uptake of the supplement was monitored. A Proton beam of 3MeV from the 3MV Tandom type pelletron accelerator was used for the multi-elemental analysis. Apart from K, other elements like Cr, Fe, Cu and Zn were identified. The sensitivity of the technique was also determined by varying the sample size between 2mm and 10mm.

Optimization of fermentation medium for the production of ethanol from jaggery using box-behnken design.

The production of ethyl alcohol using Saccharomyces cerevisiae NCIM 3288 was found significant when jaggery is used as the carbon source. From the various physical parameters studied, the effect substrate concentration was found to play a key role, and the other two important chemical supplements tested, i.e., Nitrogen and phosphorus sources were also found to be significantly contributing to product concentration. A response surface analysis predicted a substrate concentration of 23.56 % (w/v), (NH4)2SO4- 2.612 g/l and KH2PO4- 3.407g/l as the optimal conditions keeping the rest of the rest of the physical parameters at their optimal conditions as obtained from the preliminary studies. A maximum ethanol concentration of 6.15%(w/v) was obtained at the end of third day of fermentation.

Calidad fisicoquimica de la panela analizada en el Laboratorio de Salud Pública / Physicochemical quality of panela analyzed at the public health

Introducción: Este artículo presenta los resultados fisicoquímicos realizados a muestras de panela de consumo humano, consignados en las bases de datos del Laboratorio de Salud Pública de la Secretaría Distrital de Salud de Bogotá, entre el 1 de enero y el 31 de diciembre del 2009, dentro del programa de vigilancia y control sanitario que adelantan las empresas sociales del Estado. Objetivo: Determinar fisicoquímicamente la calidad de la panela que se distribuyó durante el 2009 en Bogotá. Metodología: Estudio descriptivo retrospectivo basado en análisis estadístico en Excel de 343 datos consignados en el Silasp, dentro del periodo objeto de estudio y obtenidos de información registrada luego de las pruebas fisicoquímicas practicadas al alimento panela en el Laboratorio de Salud Pública. Resultados: Durante el 2009, en Bogotá, el 84,26% (289/343) de las panelas arrojó calidad fisicoquímica que cumple con la normatividad vigente (Resolución 779 del 2006); sin embargo, el 15,74% (54/343) de las muestras analizadas presentó calidad fisicoquímica que no cumple; el 15,45% (53/343), por presencia de blanqueadores (sulfitos), y el 0,3% (1/343) por colorantes, los cuales son aditivos químicos prohibidos.

Introduction: This article presents the results obtained from the tests made to jaggery samples for human consumption recorded at the databases of the Laboratory of Public Health of Bogotá’s District Health Secretariat, from 01 January to December 31, 2009, within the Program of public health surveillance and control carried out by State Social Enterprises. Objective: To establish the physicochemical quality of unrefined whole sugar cane blocks distributed in 2009 in the Capital District. Methodology: This is a retrospective, descriptive study based on a statistical analysis of 343 Excel data from the SILASP (Public Health Lab’s Information System) for the period of study and obtained from information recorded pursuant to physico-chemical tests made to panela food at the Laboratory of Public Health. Results: 84.26% (289/343) of the jaggery blocks produced in Bogotá’s Capital District appeared to have physicochemical opperties that fulfill the current standard (Resolution 779/2006), whereas 15.74% (54/343) of the samples analyzed had physicochemical properties under the standard; 15.45% (53/343) of non-compliant samples contained whitening products (sulphites), and 0.3% (1/343) artificial colors, i.e. banned chemical additives.