Download or read book Development of Carrot Prepackaging written by Donald Ray Stokes and published by . This book was released on 1957 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymeric Packaging and Edible Coatings for Minimally Processed Carrots written by Mohammad Naushad Emmambux and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Minimally processed fruits and vegetables are increasingly demanded by local consumers and for export purposes. However, the marketing potential of these produce is limited because of physiological ageing, biochemical changes and microbiological spoilage that lead to a short shelf life. The use of polymeric packaging films to control microbial and metabolic processes and edible coatings to control the white blush formation respectively, have shown potential in improving the quality of minimally processed carrots. In combination they may form a double barrier to gases and water vapour that could provide an interaction effect to enhance the shelf life of minimally processed carrots. The aim of the study was to determine the effects of the polymeric packaging films of different permeability and edible coatings at different levels of concentration, alone and in combination on the physiological and biochemical, microbiological, and sensory quality of minimally processed carrots. A factorial experiment of 3 polymeric packaging films x 3 levels of edible coating was conducted. The three polymeric packaging films were P-Plus??, an oriented polypropylene which were fully permeable to gases and water vapour (pi, control), semi permeable (p160) and least permeable (p90) to gases only. The semi permeable and least permeable packaging had similar water vapour permeability. The coating was Nature Seal??, a cellulose based, at 0% (control), 7.5% and 15% w/w. Carrots were minimally processed into slices, dipped in the edible coating, then packed in the polymeric films and stored for 12 days at 10ʻC. Four packs were analysed for each combination treatment on d4, d8 and d12, and dO was taken as reference point. With time, the head space in the semi permeable packaging (p160) showed a decrease to about 11.5-13.6% oxygen and an increase to about 7.5-9.6% carbon dioxide. The least permeable pack (p90) showed an oxygen decrease to about 9.8-7.6% and a carbon dioxide increase to about 12.3-13.5%. This change showed the creation of a modified atmosphere that will decrease the metabolic activities. As the coating concentration increased, a slight increase in carbon dioxide and a slight decrease in oxygen were recorded in the head space of the packs. This change was unexpected as the coating was supposed to be a gas barrier. Thus, this change questioned the gas permeability properties of the edible coating. The polymeric packaging and the coating interacted to give lower oxygen and higher carbon dioxide levels in the head space atmosphere. However, packaging had a more pronounced effect in the creation of the modified atmospheres than the coating. A lower white blush formation and a higher retention of chroma values was recorded on the lower surfaces of the carrot slices than on the upper surfaces (upper surfaces refer to those that were facing the packaging material, the lower surfaces was the opposite side of the upper surfaces). This showed that the relative humidity gradient was probably not the same between the surfaces. The coating effectively controlled the white discolouration and maintained higher chroma values on both surfaces of the carrot discs, but packaging did not affect the colour changes of the upper surfaces. An interaction effect was also observed between the packaging and coating showing a better control of the white blush formation of the lower surfaces of the carrot discs. Yeast and moulds did not prove to be a problem in minimally processed carrots as they were lower than 103 cfu/g carrots throughout the storage period. When the carrots were visibly spoiled, the lactic acid bacteria were over 106 cfu/g and the psychrotrophs were about 107 to 108 cfu/g. Initially, a high growth rate of psychrotrophic bacteria occurred followed by a high growth rate of the lactic acid bacteria. This showed a dynamic relationship between the two microbes. Visible rot was observed by brown discolouration, tissue softening and exudate production. The packaging controlled the microbiological growth and spoilage as compared with the coating that enhanced it. A decrease in pH from d4 to d12 corresponded to an increase in the lactic acid bacteria and visible spoilage. Combination of edible coatings and polymeric packaging films did not show any synergistic or additive effects to enhance the shelf life of minimally processed carrots despite some interactions between these two variables. This was because the polymeric packaging films primarily prevented microbiological growth and spoilage, whereas edible coatings partly controlled white blush formation. White blush formation was the most important shelf life determinant of minimally processed carrots. Research efforts should therefore be focused on overcoming this defect.
Download or read book Marketing Research Report written by and published by . This book was released on 1957 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modified Atmosphere Packaging for Fresh Cut Fruits and Vegetables written by Aaron L. Brody and published by John Wiley & Sons. This book was released on 2010-12-30 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modified Atmosphere Packaging for Fresh-cut Fruits and Vegetables provides comprehensive coverage of all aspects of modern MAP technologies for fresh-cut fruits and vegetables. Coverage begins with the general MAP concept and application by introducing the concept of MAP, how MAP works for fresh-cut produce and the benefits and shortfalls of MAP in its application. The book then discusses the basic aspects of MAP – packaging materials and machinery. In these sections, the book addresses not only the general information about MAP materials, but also supplies examples to introduce the new packaging films and their successful application in produce and fresh-cut fruits and vegetables. Unique chapters and sections in the book include relevant patents for MAP, commercial practices and MAP packaging machinery. Generally, packaging machinery is only included in books specifically covering packaging engineering. Coverage of this important aspect is included in the book since fresh-cut manufacturers spend much more time in the day-to-day operations on packaging machinery and systems as compared to packaging film materials. In the final section, Modified Atmosphere Packaging for Fresh-cut Fruits and Vegetables highlights the latest developments in the packaging industry and how they could impact the fresh-cut industry.
Download or read book Coating Treatments and Modified Atmosphere Packaging to Improve Quality of Minimally Processed Carrots written by Luis Alberto Cisneros-Zevallos and published by . This book was released on 1995 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Selected Consumer Packages and Shipping Containers for Peaches written by John L. Ginn and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Marketing and Pricing Structure for Skim Milk Products in Kansas Missouri and Oklahoma Markets written by Homer J. Preston and published by . This book was released on 1957 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protecting Our Food written by United States. Dept. of Agriculture and published by . This book was released on 1966 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protecting Our Food the Yearbook of Agriculture 1966 written by United States. Department of Agriculture and published by . This book was released on 1966 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Packaging Development Process written by Kristine DeMaria and published by CRC Press. This book was released on 1999-12-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Packaging Development Process: A Guide for Engineers and Project Managers presents the techniques necessary for creating, testing, and launching packaging, in one convenient reference book. It does so by explaining each step of how a packaging project evolves from the business plan to product launch, with an emphasis on the financial and human resources necessary to move the project forward. Included are extended case studies and detailed flow charts. The case studies create an interesting, informative and understandable read, while the flow charts explain concepts. The text is intended to give package engineers and managers the tools they need to realize new package ideas and to revamp existing packaging in the framework of business teams.
Download or read book Packaging Research in Food Product Design and Development written by Howard R. Moskowitz and published by John Wiley & Sons. This book was released on 2009-08-07 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Packaging Research in Food Product Design and Development is the first book to comprehensively address the issues of graphics design and visual concepts, from a systematic, scientific viewpoint, yet with business applications in mind. Positioned specifically for foods and beverages, Packaging Research in Food Product Design and Development uniquely combines consumer liking, segmentation and “how to” business methodology with a detailed treatment of the different facets of concept research.
Download or read book Yearbook of Agriculture written by and published by . This book was released on 1926 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Carrot Prepackaging Classic Reprint written by Donald Ray Stokes and published by Forgotten Books. This book was released on 2018-03-17 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Development of Carrot Prepackaging This report, therefore, rounds out the general picture by outlining the successes and setbacks during the long series of attempts to reduce the cost of marketing and increase the salability of fresh carrots by prepackaging. Until recently, carrots were normally harvested and marketed in bunches with the tops left on. (fig. 1) Today, most commercially produced fresh carrots are marketed without tops in 1 to 2-pound consumer packages Of polyethylene film. The transition from bunched to prepackaged carrots was greatly stimulated by the wide range of re search and by the individual pioneering efforts that preceded and accompanied it. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Packaging Abstracts written by and published by . This book was released on 1974 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeration of Grain in Commercial Storages written by and published by . This book was released on 1957 with total page 1230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modified and Controlled Atmospheres for the Storage Transportation and Packaging of Horticultural Commodities written by Elhadi M. Yahia and published by CRC Press. This book was released on 2009-03-11 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modified atmosphere (MA) and controlled atmosphere (CA) technologies have great potential in a wide range of applications. The increasingly global nature of food production and the increased emphasis on reducing chemical preservatives and pesticides have put the spotlight on these centuries-old technologies. Yet until now, there have been very few
Download or read book Recommendations on the International Standardisation of Packaging For Fruit and Vegetables written by Organisation for Economic Co-operation and Development and published by . This book was released on 1967 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
