190 research outputs found
Environmental impact assessment of wheat straw based alkyl polyglucosides produced using novel chemical approaches
This paper evaluates and quantifies the environmental performance of alkyl polyglucosides sourced from wheat straw (WS-APG), a low-cost and low-ecological impact agricultural residue, compared to that of their commercial counterpart, which is sourced from palm kernel oil and wheat grain (PW-APG). Escalating pressure to consider the environmental sustainability of fossil derived surfactant consumption has driven biosurfactants to become the product of choice within the surfactant market, and a class of ‘plant’ based non-ionic surfactants called alkyl polyglucosides (APG) are particularly prevalent. However, the existing food based feedstock of APG such as coconut oil, palm oil, wheat and corn (in addition to being expensive) will potentially undermine the claimed ‘sustainability’ of the APG products (i.e. the ‘food vs. chemical’ issue). Here, we present the “cradle-to-gate” life cycle impact assessment of a suggested alternative, hybridised APG synthesis technique where the Fisher glycosidation method is supplemented by novel, green chemistry based techniques. This evaluation provides a quantitative insight into direct GHG intensity and other ecological impact indicators, including land use, waste generation and energy consumption. Upon evaluation, the wheat straw-derived pathway delivered GHG-emission savings in the range of 84–98%, compared to that of the palm kernel–wheat grain pathway. Waste generated from the production of unit mass of the product amounted to 0.43 kg and 10.73 kg per kg of WS-APG and PW-APG, respectively. In addition to the above mentioned facts, the ‘cradle–gate’ stages of WS-APG production were also found to consume relatively lower amounts of water and fossil-derived energy. In conclusion, of the two APG production pathways, the suggested ‘hybrid’ pathway using an agricultural residue, wheat straw, was found to be sustainable and to demonstrate better environmental performance
Thirtieth annual report and accounts 1994/95
SIGLEAvailable from British Library Document Supply Centre-DSC:1502.260(30) / BLDSC - British Library Document Supply Centre30. ed.GBUnited Kingdo
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SIGLEAvailable from British Library Document Supply Centre-DSC:8867.3881(21) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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SIGLEAvailable from British Library Document Supply Centre-DSC:8867.3881(10) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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SIGLEAvailable from British Library Document Supply Centre-DSC:m02/28935 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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SIGLEAvailable from British Library Document Supply Centre-DSC:8867.3881(15) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Agronomy roadshows '99
Funded by the Ministry for Agriculture, Fisheries and Food ; BASIS accreditation no. O/054/99/CAvailable from British Library Document Supply Centre-DSC:0771.475(1999) / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo
Assessments of wheat growth to support its production and improvement (volume 1) Part 1, the wheat digest; part 2, methods for in-field crops assessment; part 3, forecasting crop progress for wheat
Vol 1 of 3SIGLEAvailable from British Library Document Supply Centre-DSC:4303.4478(151/1) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Optimising the benefits from integrated farming
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SIGLEAvailable from British Library Document Supply Centre-DSC:8867.3881(16) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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