Selection  of Method for Analysis of a Specific Substance in Food FSHN 462
The Assignment… <ul><li>Select, from the list below, one food constituent. </li></ul><ul><li>Using library databases, AGRI...
Food Constituents <ul><li>Calcium </li></ul><ul><li>Iron </li></ul><ul><li>Copper </li></ul><ul><li>Mercury </li></ul><ul>...
Databases: Where to Find Journal Articles <ul><li>Food Science Databases </li></ul><ul><li>AGRICOLA  </li></ul><ul><li>CA...
“ A Rose is a Rose is a Rose.” -Gertrude Stein <ul><li>Many of the components on the list have other names. The following ...
Searching Databases & Catalogues Searching tips that you can use with any database or library catalogue.
Boolean Searching: AND, OR, AND NOT <ul><li>Use AND to narrow/focus searches </li></ul><ul><ul><li>Why? Databases and cata...
Searching for Variant Endings and Spelling <ul><li>Truncation uses a symbol, usually an asterisk (*), to retrieve variant ...
Searching phrases <ul><li>When searching any catalogue or database enclose phrases in quotation marks. </li></ul><ul><ul><...
Grouping Searches <ul><li>When grouping terms together use parentheses. </li></ul><ul><ul><li>Why? Parentheses “force the ...
Putting Searches Together <ul><li>What is your question? This can be assigned by your professor or one your come up with y...
Putting Searches Together <ul><ul><li>Group synonyms together using parentheses and connect them with OR </li></ul></ul><u...
If at first you don’t succeed… <ul><li>Test your search strategy. Does it work in AGRICOLA? </li></ul><ul><ul><li>This gig...
Success!
If at First You Don’t Succeed… <ul><li>Test your search strategy. Does it work in Web of Science? </li></ul><ul><ul><li>Th...
Try, Try Again
Something to keep in mind… <ul><li>Sometimes a search works right off the bat, and sometimes you have to go back and fine-...
Karenann Jurecki [email_address] Yahoo IM: k.jurecki 335-8217
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Food Analysis

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Library Instruction course on researching methods of food analysis.

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Food Analysis

  1. 1. Selection of Method for Analysis of a Specific Substance in Food FSHN 462
  2. 2. The Assignment… <ul><li>Select, from the list below, one food constituent. </li></ul><ul><li>Using library databases, AGRICOLA or Web of Science, do a literature search of methods for quantitatively determining the food constituent. Select two methods based on different principles for measuring the component in a specific food from the scientific literature </li></ul><ul><li>Record your strategy. How did you find the methods? What database did you use. What keywords? etc. </li></ul><ul><li>For the two methods you have selected </li></ul><ul><ul><li>Give a comparison of the sensitivity, precision, and accuracy of the methods. </li></ul></ul><ul><ul><li>Choose between the two methods. </li></ul></ul><ul><ul><li>Include copies of published papers used for your report. </li></ul></ul><ul><ul><li>Include your search strategy. </li></ul></ul>
  3. 3. Food Constituents <ul><li>Calcium </li></ul><ul><li>Iron </li></ul><ul><li>Copper </li></ul><ul><li>Mercury </li></ul><ul><li>Lead </li></ul><ul><li>Vitamin A </li></ul><ul><li>Chlorophyll </li></ul><ul><li>Sucrose </li></ul><ul><li>Pectic Acid </li></ul><ul><li>Fructose </li></ul><ul><li>Starch </li></ul><ul><li>Anthocyanins </li></ul><ul><li>Oleic Acid </li></ul><ul><li>Butyric Acid </li></ul><ul><li>Linoleic Acid </li></ul><ul><li>Parathion </li></ul><ul><li>Vitamin E </li></ul><ul><li>Vitamin B1 </li></ul><ul><li>Vitamin B2 </li></ul><ul><li>Odor constituents of onions </li></ul><ul><li>Odor constituents of apples </li></ul><ul><li>Odor constituents of citrus oils </li></ul><ul><li>Methionine </li></ul><ul><li>Lysine </li></ul><ul><li>Tryptophan </li></ul><ul><li>Rutin </li></ul><ul><li>Linolenic Acid </li></ul><ul><li>Acetic Acid </li></ul><ul><li>Lactic Acid </li></ul><ul><li>Malic Acid </li></ul><ul><li>Nitrosamine </li></ul><ul><li>Nitrate </li></ul><ul><li>Nitrite </li></ul><ul><li>Myoglobin </li></ul><ul><li>Peroxidase </li></ul><ul><li>Lipoxygenase </li></ul><ul><li>Polyphenol Oxidase </li></ul><ul><li>Alkaline Phosphatase </li></ul><ul><li>Aspartame </li></ul><ul><li>Saccharin </li></ul><ul><li>Cyclamate </li></ul>
  4. 4. Databases: Where to Find Journal Articles <ul><li>Food Science Databases </li></ul><ul><li>AGRICOLA  </li></ul><ul><li>CAB Abstracts </li></ul><ul><li>Food Science & Technology Abstracts </li></ul><ul><li>SciFinder Scholar </li></ul><ul><li>Web of Science  </li></ul><ul><li> Remember, these are the two mentioned specifically in your assignment </li></ul><ul><li>WSU Libraries Databases by Subject : </li></ul><ul><li>Food Science </li></ul><ul><li>Agriculture & Resource Economics </li></ul><ul><li>Cross Search </li></ul><ul><li>Cross Search searches multiple databases, in the subject you select, at the same time. </li></ul>
  5. 5. “ A Rose is a Rose is a Rose.” -Gertrude Stein <ul><li>Many of the components on the list have other names. The following are places to find synonyms for some of the components listed. </li></ul><ul><li>Dictionary of Chemistry (Oxford): Available online from the WSU Libraries, or WSU Owen Reference QD5 .D4985 2000 </li></ul><ul><li>Hawley’s Condensed Chemical Dictionary WSU Owen Reference QD5.C5 2007 </li></ul><ul><li>Wiley Encyclopedia of Food Science and Technology WSU Owen Reference TP368.2 E62 2000 </li></ul>
  6. 6. Searching Databases & Catalogues Searching tips that you can use with any database or library catalogue.
  7. 7. Boolean Searching: AND, OR, AND NOT <ul><li>Use AND to narrow/focus searches </li></ul><ul><ul><li>Why? Databases and catalogues will retrieve record where all terms connected with AND appear </li></ul></ul><ul><ul><li>For example, vitamin c AND sea buckthorn </li></ul></ul><ul><li>Use OR to expand searches </li></ul><ul><ul><li>Why? Databases and catalogues will retrieve records where either term connected by OR appears. </li></ul></ul><ul><ul><li>For example, vitamin c OR ascorbic acid </li></ul></ul><ul><li>Use NOT or AND NOT to limit a search to one term and at the same time eliminate another term </li></ul><ul><ul><li>For example, you are looking for studies of vitamin c, but not ester-c. Your search may look like this vitamin c NOT ester-c or it may look like “vitamin c” AND NOT ester-c. </li></ul></ul><ul><ul><li>Use AND NOT/NOT judiciously. You may eliminate something you need. </li></ul></ul>
  8. 8. Searching for Variant Endings and Spelling <ul><li>Truncation uses a symbol, usually an asterisk (*), to retrieve variant endings of a root word. </li></ul><ul><ul><li>Environment* will retrieve environments, environmental, environmentalism. </li></ul></ul><ul><ul><li>The vast majority of databases and catalogues use the * to truncate, but some databases use other symbols like # or ? </li></ul></ul><ul><ul><li>Be careful not to over-truncate. Using eth* to retrieve articles with ethyl alcohol and ethanol will also retrieve ethic, ethics, ethical, ethnic, ethnicity. </li></ul></ul><ul><li>Symbols like the ? or * can also be used to search for variant spellings or plural forms as well. </li></ul><ul><ul><li>Colo?r will retrieve both color and colour </li></ul></ul><ul><ul><li>H?emophilia will retrieve both haemophilia and hemophilia </li></ul></ul><ul><ul><li>Most databases use either the ? or * to indicate a search for variant spellings, but some databases use other symbols like #. </li></ul></ul>
  9. 9. Searching phrases <ul><li>When searching any catalogue or database enclose phrases in quotation marks. </li></ul><ul><ul><li>If you are looking for articles on vitamin c, and don’t put it in quotes, you get every record with vitamin and c . That doesn’t sound so bad until you find that article on Vitamin B12 by Jane C. Public, PhD. </li></ul></ul><ul><ul><li>That search for vitamin c in sea buckthorn will look like this, “vitamin c” AND “sea buckthorn” </li></ul></ul>
  10. 10. Grouping Searches <ul><li>When grouping terms together use parentheses. </li></ul><ul><ul><li>Why? Parentheses “force the order”. They instruct the database/catalogue to search the set in parentheses first. </li></ul></ul><ul><ul><ul><li>If you sat in algebra class and said, I’ll never use this again… </li></ul></ul></ul><ul><ul><li>You can still search for phrases using quotation marks, and you can tie groups of parentheses together with AND, OR, AND NOT to create complex searches </li></ul></ul>
  11. 11. Putting Searches Together <ul><li>What is your question? This can be assigned by your professor or one your come up with yourself. </li></ul><ul><ul><li>“ What are the methods used for determining the amount of vitamin c in sea buckthorn berries?” </li></ul></ul><ul><li>Form your search strategy: </li></ul><ul><ul><li>Collect your keywords/key phrases together. </li></ul></ul><ul><ul><li>Identify synonyms for those keywords/key phrases. </li></ul></ul><ul><ul><ul><li>For example, some synonyms for “vitamin c” include “ascorbic acid” and “ascorbate” </li></ul></ul></ul><ul><ul><ul><li>Having trouble finding synonyms, try a dictionary, subject dictionary, or thesaurus. </li></ul></ul></ul>
  12. 12. Putting Searches Together <ul><ul><li>Group synonyms together using parentheses and connect them with OR </li></ul></ul><ul><ul><ul><li>(“vitamin c” or “ascorbic acid” or ascorbate) </li></ul></ul></ul><ul><ul><ul><li>(“sea buckthorn” or “Hippophae rhamnoides L.”) </li></ul></ul></ul><ul><ul><ul><li>(method or technique) </li></ul></ul></ul><ul><ul><ul><li>(content or amount or quantit*) </li></ul></ul></ul><ul><ul><ul><li>Remember, put quotes around phrases </li></ul></ul></ul><ul><ul><li>Tie concepts together with AND. </li></ul></ul><ul><ul><ul><li>(“vitamin c” or “ascorbic acid” or ascorbate) AND (“sea buckthorn” or “Hippophae rhamnoides L.”) AND (method or technique) AND (content or amount or quantit*) </li></ul></ul></ul>
  13. 13. If at first you don’t succeed… <ul><li>Test your search strategy. Does it work in AGRICOLA? </li></ul><ul><ul><li>This gigantic search strategy: (“vitamin c” or “ascorbic acid” or ascorbate) AND (“sea buckthorn” or “Hippophae rhamnoides L.”) AND (method or technique) AND (content or amount or quantit*) did not work . In fact, I got an error message. </li></ul></ul><ul><ul><li>Sometimes you have to refine your search strategy in order to get results, much less relevant results </li></ul></ul><ul><ul><li>I refined my search strategy to: “vitamin c” AND “sea buckthorn” AND (analy* OR method*) AND (amount OR content OR quantit*) in AGRICOLA, and I got… </li></ul></ul>
  14. 14. Success!
  15. 15. If at First You Don’t Succeed… <ul><li>Test your search strategy. Does it work in Web of Science? </li></ul><ul><ul><li>This gigantic search strategy: (“vitamin c” or “ascorbic acid” or ascorbate) AND (“sea buckthorn” or “Hippophae rhamnoides L.”) AND (method or technique) AND (content or amount or quantit*) did not work . Once again, I got an error message. </li></ul></ul><ul><ul><li>Sometimes you have to refine your search strategy in order to get results, much less relevant results </li></ul></ul><ul><ul><li>I refined my search strategy to: (“vitamin c” AND “sea buckthorn”) AND (analy* OR method*) AND (amount OR content OR quantit*) in Web of Science, and I got… </li></ul></ul>
  16. 16. Try, Try Again
  17. 17. Something to keep in mind… <ul><li>Sometimes a search works right off the bat, and sometimes you have to go back and fine-tune your search. </li></ul><ul><li>Sometimes, everything you need to know about the article in in the abtract, but not always. Research papers have a Methods section that will tell you how a test was done. If you’re not sure read the paper. </li></ul>
  18. 18. Karenann Jurecki [email_address] Yahoo IM: k.jurecki 335-8217

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