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The aim of this study was to evaluate the influence of temperature and action time on the extraction rate of carbohydrates of Jerusalem artichoke concentrate powder and inactivation of inulin during boiling and sterilization.

Water suspension of Jerusalem artichoke concentrate (5g/100ml) at 25, 50 and 100^○C was tested after 5, 15, 30 and 60min to determine the content of inulin, glucose, fructose and sucrose and evaluate the extraction rate. The stability of inulin was studied after boiling and sterilization at 120^○C during 1, 2 and 3h. The extraction rate was evaluated by Fourier‐Transform Infrared (FT‐IR) spectroscopy as well.

It was shown that extraction of soluble carbohydrates – fructose, glucose, sucrose and inulin, from water suspension of Jerusalem artichoke concentrate was practically completed in 5min at 25^○C. The extraction rate was not significantly influenced by temperatures lower than 100^○C. Inulin was stable during boiling for 1h but sterilization for 1h caused significant losses. Infrared spectral analysis of soluble and insoluble fractions showed that inulin was practically fully extracted.

The paper shows that inulin can be easily extracted from Jerusalem artichoke concentrate powder even at 25^○C and it maintains for 60min at temperatures up to 100^○C, nevertheless boiling or sterilization at higher temperatures for longer time causes significant loses of inulin and consequently the functional quality of Jerusalem artichoke powder. These results must be taken into account when applying inulin concentrates as functional food components.

The aim of this study is to find out the appropriate fermentation conditions of Jerusalem artichoke powder (JAP) based media to obtain light beverage containing inulin.

JAP water suspension or filtrate were used for preparation of growth media with or without enzymatic hydrolysis of inulin for fermentation by Zymomonas mobilis 113 “S” or Saccharomyces cerevisiae.

If enzymatic hydrolysis of inulin was not used significantly higher amount of inulin (7.42 per cent) was unconverted by Z. mobilis than by S. cerevisiae (2.22 per cent) while the ethanol concentration was much higher (2.86 per cent) after S. cerevisiae fermentation than after Z. mobilis fermentation (1.21 per cent). Considerably more ethanol was produced by Z. mobilis during co‐fermentation with Fructozyme L of JAP suspension filtrate (5.98 per cent) and suspension (4.96 per cent). Analyses of volatile components of fermentation broths showed that for production of inulin containing light beverages the best was Z. mobilis fermentation of JAP water suspension or filtrate without enzymatic treatment. FT–IR spectroscopy can be used as a quick semi‐quantitative method for evaluation of inulin content.

JAP – containing not only inulin but all tuber ingredients, was used as a media for ethanol fermentations by Z. mobilis 113 “S” or S. cerevisiae with or without hydrolysis of inulin. It was shown that Z. mobilis fermentation broths containing 7.42 per cent of inulin can be used as beverage with prebiotic‐dietary fibre benefits. The taste of this product can be regulated by appropriate fermentation conditions and the concentration of fructose and ethanol.

This study aims to understand the role of access convenience of common service centres (CSCs) in determining the e-government continuance intention from the perspective of citizens who are dependent on these centres for using e-government services, in developing countries such as India. The study uses the DeLone and McLean’s information systems (IS) success model as a theoretical basis and analyses the effect of access convenience of CSCs (AC), on the three quality dimensions (namely, information quality [IQ], system quality [SyQ] and service quality [SQ]), and the e-government continuance intention. The effects of the three quality dimensions on continuance intention are also analysed.

The primary data were collected from the field surveys conducted at various CSCs in Uttar Pradesh state of India using convenience sampling technique. The study sample included 358 respondents who use e-government services through CSCs. Structural equation modelling was used to test the hypothesized relationships in the proposed model.

The findings of the study suggest that CSCs’ access convenience has a significant positive impact on the e-government continuance intention. The findings also confirm the significant positive impact on all the three quality dimensions of e-government i.e. IQ, SyQ and SQ. Though the findings do not provide support for the impact of IQ and SyQ on the e-government continuance intention but the impact of SQ on the e-government continuance intention is found to be significantly positive.

The explanatory power of the model indicates the scope of including more variables in determining the continued usage of e-government. Future studies may extend the present study by including concepts such as trust, satisfaction and security/privacy concerns of citizens. The present study has failed to support the impact of IQ and SyQ on the intention to continue using e-government services. Future studies may test the model in different contexts with different respondents to further examine these relationships. Future studies may also see the association between the continuance intention and actual use of e-government services.

The government should provide accessible CSCs to the citizens which are conveniently available to them. To diffuse the e-government services successfully among all citizens, the government needs to see that sufficient numbers of CSCs are available in the areas where people lack the required infrastructure for using the e-government services. The government also needs to ensure that the CSCs are fully functional and equipped with facilities for providing the best quality services.

The study combines the quality constructs from the IS success model with AC, for predicting the e-government continuance intention. The joint use of these constructs has provided a model with high explanatory power, which is able to explain 76.6% variation in the continued usage of e-government services. The study also contributes to the existing literature by presenting AC as a strong determinant of the e-government quality dimensions.