Development Of A Chlorine Dioxide Gas Concentration Monitoring Unit And Kinetic Analysis Of The Effect Of Chlorine Dioxide Treatment On Color And Microbial Content Change Of Spinach
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Development Of A Chlorine Dioxide Gas Concentration Monitoring Unit And Kinetic Analysis Of The Effect Of Chlorine Dioxide Treatment On Color And Microbial Content Change Of Spinach
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Author : Ryan Anthony Gehringer
language : en
Publisher:
Release Date : 2013
Development Of A Chlorine Dioxide Gas Concentration Monitoring Unit And Kinetic Analysis Of The Effect Of Chlorine Dioxide Treatment On Color And Microbial Content Change Of Spinach written by Ryan Anthony Gehringer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Fresh produce safety, especially for leafy green vegetables, has become a focal point of interest in recent years. In an effort to reduce microbial loads present on fresh produce, gaseous sanitizers are being explored because of their higher diffusivities. In this study, spinach was exposed to chlorine dioxide (ClO2) gas, in an effort to determine concentration and exposure time combinations which yield maximum microbial reduction while causing minimal color change to the leaf. An extensive study was first performed to determine the color change, quantified as the change in hue angle, by varying ClO2 concentrations (2.0-6.0 mg/L) and exposure times (0.5-24 min). The resulting data were organized in form of a state diagram to determine the acceptable and unacceptable product in terms of color as a result of ClO2 treatment. On the acceptable regions of the state diagram, ClO2 concentration-exposure time combinations were chosen for microbial inoculation studies. Log reductions as high as 2.27 units were observed while only having a minor effect on the color of the spinach leaves (2.05¿¿0.06 mg/l for 20 min). Kinetic data were collected to determine the rate of microbial reduction and rate of color change of spinach leaves at selected ClO2 concentrations. These results suggested that, in order to completely eliminate color damage, high concentration short-time exposure may be the only practical way to better sanitize fragile food material like spinach. Lengthy exposure times may not provide an additional microbial reduction that is capable of outweighing the additional property damage that long-time exposures cause.
Microbial Control And Food Preservation
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Author : Vijay K. Juneja
language : en
Publisher: Springer
Release Date : 2018-01-23
Microbial Control And Food Preservation written by Vijay K. Juneja and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-23 with Science categories.
This edited volume provides up-to-date information on recent advancements in efforts to enhance microbiological safety and quality in the field of food preservation. Chapters from experts in the field cover new and emerging alternative food preservation techniques and highlight their potential applications in food processing. A variety of different natural antimicrobials are discussed, including their source, isolation, industrial applications, and the dosage needed for use as food preservatives. In addition, the efficacy of each type of antimicrobial, used alone or in combination with other food preservation methods, is considered. Factors that limit the use of antimicrobials as food preservatives, such as moisture, temperature, and the ingredients comprising foods, are also discussed. Finally, consumer perspectives related to the acceptance of various preservation approaches for processed foods are described.
Impact Of Chlorine Dioxide On Transmission Treatment And Distribution System Performance
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Author : Robert Carl Andrews
language : en
Publisher: American Water Works Association
Release Date : 2005
Impact Of Chlorine Dioxide On Transmission Treatment And Distribution System Performance written by Robert Carl Andrews and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Chlorine dioxide categories.
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Development Of Chlorine Dioxide Related By Product Models For Drinking Water Treatment
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Author : Caroline Korn
language : en
Publisher:
Release Date : 1998
Development Of Chlorine Dioxide Related By Product Models For Drinking Water Treatment written by Caroline Korn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Statistically-designed factorial experiments were conducted using 'synthetic' waters to examine the effects of various physical/chemical parameters on chlorine dioxide-related disinfection by-product formation. 2-level factorial experiments were then performed on 7 surface waters and a groundwater collected in Ontario to develop statistically-based model equations capable of predicting chlorine dioxide consumption, chlorite and chlorate formation when dosing with chlorine dioxide. These equations were developed in terms of pH, temperature, chlorine dioxide concentration, reaction time and water organic content. Interaction effects involving the aforementioned parameters were also included in the model equations, improving the accuracy of the predictive equations in fitting measured levels as evaluated through internal and external validations. Chlorine-dioxide dose and water organic content were found to be key parameters in developing the predictive equations. Improved correlations between chlorine dioxide consumption, chlorite and chlorate formation with changes in UV$\sb{254}$ were found to exist on a site-and parameter-specific basis.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1981
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Agriculture categories.
Progress In Inorganic Chemistry Volume 15
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Author : Stephen J. Lippard
language : en
Publisher: John Wiley & Sons
Release Date : 2009-09-17
Progress In Inorganic Chemistry Volume 15 written by Stephen J. Lippard and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-17 with Science categories.
This comprehensive series of volumes on inorganic chemistry provides inorganic chemists with a forum for critical, authoritative evaluations of advances in every area of the discipline. Every volume reports recent progress with a significant, up-to-date selection of papers by internationally recognized researchers, complemented by detailed discussions and complete documentation. Each volume features a complete subject index and the series includes a cumulative index as well.
Postharvest Handling
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Author : Ibrahim Kahramanoglu
language : en
Publisher: BoD – Books on Demand
Release Date : 2017-09-13
Postharvest Handling written by Ibrahim Kahramanoglu and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-13 with Gardening categories.
The world population has been increasing day by day, and demand for food is rising. Despite that, the natural resources are decreasing, and production of food is getting difficult. At the same time, about one-quarter of what is produced never reaches the consumers due to the postharvest losses. Therefore, it is of utmost importance to efficiently handle, store, and utilize produce to be able to feed the world, reduce the use of natural resources, and help to ensure sustainability. At this point, postharvest handling is becoming more important, which is the main determinant of the postharvest losses. Hence, the present book is intended to provide useful and scientific information about postharvest handling of different produce.
Preventing The Forward Contamination Of Mars
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2006-04-22
Preventing The Forward Contamination Of Mars written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-22 with Science categories.
Recent spacecraft and robotic probes to Mars have yielded data that are changing our understanding significantly about the possibility of existing or past life on that planet. Coupled with advances in biology and life-detection techniques, these developments place increasing importance on the need to protect Mars from contamination by Earth-borne organisms. To help with this effort, NASA requested that the NRC examine existing planetary protection measures for Mars and recommend changes and further research to improve such measures. This report discusses policies, requirements, and techniques to protect Mars from organisms originating on Earth that could interfere with scientific investigations. It provides recommendations on cleanliness and biological burden levels of Mars-bound spacecraft, methods to reach those levels, and research to reduce uncertainties in preventing forward contamination of Mars.
Ozone In Food Processing
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Author : Colm O'Donnell
language : en
Publisher: John Wiley & Sons
Release Date : 2012-04-23
Ozone In Food Processing written by Colm O'Donnell and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-23 with Technology & Engineering categories.
This book is the first to bring together essential information on the application of ozone in food processing, providing an insight into the current state-of-the-art and reviewing established and emerging applications in food processing, preservation and waste management. The chemical and physical properties of ozone are described, along with its microbial inactivation mechanisms. The various methods of ozone production are compared, including their economic and technical aspects. Several chapters are dedicated to the major food processing applications: fruit and vegetables, grains, meat, seafood and food hydrocolloids, and the effects on nutritional and quality parameters will be reviewed throughout. Further chapters examine the role of ozone in water treatment, in food waste treatment and in deactivating pesticide residues. The international regulatory and legislative picture is addressed, as are the health and safety implications of ozone processing and possible future trends.
Fresh Cut Fruits And Vegetables
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Author : Olusola Lamikanra
language : en
Publisher: CRC Press
Release Date : 2002-02-14
Fresh Cut Fruits And Vegetables written by Olusola Lamikanra and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-02-14 with Technology & Engineering categories.
A comprehensive reference for the emerging fresh-cut fruits and vegetable industry, Fresh-cut Fruits and Vegetables: Science, Technology and Market focuses on the unique biochemical, physiological, microbiological, and quality changes in fresh-cut processing and storage. It highlights the distinct equipment design, packaging requirements, production economics, and marketing considerations for fresh-cut products. Based on the extensive research in this area during the last 10 years, this reference is the first to cover the complete spectrum of science, technology, and marketing issues related to this field.