Simone Pucci Snack foods are currently consumed by millions of people of diverse cultural backgrounds in many countries because they are tempting snacks if characterized by crispness, brilliant colour and flavours. However, these products can undergo degradation processes, first of all, the lipid oxidation which causes rancidity and off- flavours. The most important indexes that allow to estimate oxidative stability of finished products are: Free Fatty Acids FFA to determine the process of acidification of fatty component, Peroxide Value PV to indicate the degree of primary oxidation p-Anisidine value AnV to evaluate the formation of molecules aldehydes and ketones responsible for the organoleptic alterations.
Bibliography Definition A literature review surveys books, scholarly articles, and any other sources relevant to a particular issue, area of research, or theory, and by so doing, provides a description, summary, and critical evaluation of these works in relation to the research problem being investigated.
Literature reviews are designed to provide an overview of sources you have explored while researching a particular topic and to demonstrate to your readers how your research fits within a larger field of study. Conducting Research Literature Reviews: From the Internet to Paper. Importance of a Good Literature Review A literature review may consist of simply a summary of key sources, but in the social sciences, a literature review usually has an organizational pattern and combines both summary and synthesis, often within specific conceptual categories.
A summary is a recap of the important information of the source, but a synthesis is a re-organization, or a reshuffling, of that information in a way that informs how you are planning to investigate a research problem.
The analytical features of a literature review might: Give a new interpretation of old material or combine new with old interpretations, Trace the intellectual progression of the field, including major debates, Depending on the situation, evaluate the sources and advise the reader on the most pertinent or relevant research, or Usually in the conclusion of a literature review, identify where gaps exist in how a problem has been researched to date.
The purpose of a literature review is to: Place each work in the context of its contribution to understanding the research problem being studied. Describe the relationship of each work to the others under consideration.
Identify new ways to interpret prior research.
Reveal any gaps that exist in the literature. Resolve conflicts amongst seemingly contradictory previous studies. Identify areas of prior scholarship to prevent duplication of effort. Point the way in fulfilling a need for additional research. Locate your own research within the context of existing literature [very important].
Sage, ; Hart, Chris. Doing a Literature Review: Releasing the Social Science Research Imagination. Sage Publications, ; Jesson, Jill. Doing Your Literature Review: Traditional and Systematic Techniques. Political Science and Politics 39 January A Step-by-Step Guide for Students.
Types of Literature Reviews It is important to think of knowledge in a given field as consisting of three layers. First, there are the primary studies that researchers conduct and publish. Second are the reviews of those studies that summarize and offer new interpretations built from and often extending beyond the primary studies.
Third, there are the perceptions, conclusions, opinion, and interpretations that are shared informally that become part of the lore of field.Book Reviews. Book Suggestions below: People often ask me for book suggestions related to Yoga meditation, so I've listed below some that I personally know about and feel are attheheels.com are also links to some authors whose work I find clear and authoritative, as well as several search links by topic.
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How to know the oxidation state to forecast the Shelf life of the fried snacks. Literature reviews provide you with a handy guide to a particular topic. If you have limited time to conduct research, literature reviews can give you an overview or act as a stepping stone.
For professionals, they are useful reports that keep them up to date with what is current in the field.
Jul 18, · On the one hand, if you take several years to choose, several other people may have had the same idea in the meantime. On the other hand, only a well-considered topic is likely to lead to a brilliant literature review .
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