The background photograph shows Vanilla planifolia
under cultivation in Costa Rica. The narrow green attachments are
the immature vanilla beans. After harvesting they mature to a dark
brown color, occasionally with visible white crystals of vanillin
showing on the surface. See Vanillin:
Synthetic Flavoring from Spent Sulfite Liquor, by Hocking to learn
more about this extremely popular flavoring agent. Did you know, for
example, that vanillin (the chief constituent of natural vanilla flavor)
can be obtained from spent sulfite liquor, a waste product of paper
mills? Or that the structure of vanillin is related to the structures
of zingerone (ginger flavor) or capsaicin (hot pepper flavor)? Even
if you are already familiar with flavor chemistry, Hocking's paper
collects a lot of useful, interesting applications of chemistry into
one concentrated extract that is bound to add spice to your classes.
The foreground shows a botanical print drawn by
Gordon Winston Dillon. Photograph courtesy of Simply Organic,
Inc. Purveyors of Organic Herbs and Spices.
The cover was designed by Betsy True.
The "Chemistry Teacher Connection" (CTC) is especially for high school chemistry teachers. For only $40/year, it offers an online-only subscription to CLIC along with membership in the Division of Chemical Education, normally $65/year. CTC subscribers receive access to all articles and supplements from 1996 through the current issue.
Through special arrangement with the ACS, JCE High School CLIC is now able to provide subscribers with online access to Chemical & Engineering News articles that have been selected specifically for secondary science instructors and their students.
Occasionally, collections of JCE back issues become available for donation to individual teachers, schools, or libraries. JCE matches collections with interested recipients. Recipients pay shipping costs or pick up the collection.