since April 20, 1999.
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No meeting in January
February Meeting Wednesday, February 16; Dinner 6:00 PM Talk at 7:00 PM
Blackstone
Restaurant & Brewery
1918 West End Ave
Nashville, TN 37203
(R.S.P.V. for dinner reservations to jwdawson@bellsouth.net by February 15)
Topic: Zymurgy: The Art and Science of Making
Beer, Tracy Hamilton, University of Alabama at B
The seminar covers both the practical aspects of brewing (how to) and the chemistry of brewing. After a brief introduction of the history of beer, the steps of the process are outlined. The first step that is required is the malting of grain. This is a complex process that even breweries do not perform themselves, leaving to specialized malting companies. The second step is mashing. This is accomplished by steeping the grain (which is crushed to allow access of the hot water to the inside, but not powdered so that intact grain husks can act as a filter) in hot water. The influence of temperature and pH on the final product is discussed. The third step is lautering (sparging). Lautering is separation of the sugar solution from the grain. Temperature, viscosity from complex carbohydrates, and fluid dynamics are important variables to control. The fourth step is the boil, which serves several purposes: 1) Sterilization 2) extract the bittering compounds from hops (flowers containing bitter olefinic acids that balance the sweetness of beer), and isomerize the olefinic acids 3) precipitation of excess protein 4) browning reactions (Maillard - linking of amino acid and sugars) and 5) removal of excess water. The hot liquid (called wort) is cooled, and the final step (fermentation) is initiated. A discussion of important compounds in the final product is the final part of the talk. A side by side comparison of a homebrew or two with a commercial example may be possible after the talk.
http://www.chem.uab.edu/Hamilton/Hamilton-site.html
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Biographical Sketch |
Tracy P. Hamilton obtained a Ph.D. (advisor: Peter Pulay) from the University of Arkansas in 1987, and did four years of postdoctoral research (advisor: Fritz Schaefer) at the University of Georgia. Dr. Hamilton has been a professor at the University of Alabama at Birmingham since 1991. In graduate school, he had to make a difficult choice between theoretical and experimental chemistry, and chose theoretical. As a result, the urge to synthesize irresistibly manifested itself in 1996, when he started brewing beer at home. Dr. Hamilton has been very active in the Birmingham Brewmasters (http://hbd.org/bbm), a group dedicated to the appreciation of different beer styles and how to brew them. He is also a certified beer judge in the Beer Judge Certification Program (BJCP http://www.bjcp.org). |
March Meeting
March 30, 2005
Importance Of Mentoring For Women In Chemistry
April Meetings
Golden Goggles Award Lecture
April 7, 2005 Golden Goggles. speaker is Ann Nalley, President elect of the ACS.April 14, 2005.
Speaker:
Jeanette Brown will talk about African-American Women Chemists and her oral
history project to recognize these women.
The next meeting of the Nashville ACS Section will be held on Thursday,
April 14, at Fisk University in Spence Hall, which is located at 17th
and Meharry Blvd. Jeanette E. Brown, New Jersey Institute of Technology
(retired), Newark, NJ, will give a presentation at 6:45 p.m. titled "The
History of African American Women Chemist Project". An abstract for
the
talk and a brief biography of the speaker are attached as both a Word
document and a PDF file. I heard variations of this talk last summer at
the Biennial Chemical Education Conference at Iowa State and again in
the fall at the SERMACS meeting in North Carolina at the Research
Triangle, so I can encourage attendance with the personal knowledge that
this topic is both interesting and important.
There will be a reception at 5:00 p.m. followed by dinner at 5:30 p.m.
This buffet dinner is $5.00 for students and $9.00 for the rest of us.
Please RSVP Dr. Robert Wingfield at (615) 329-8626 or rwingfld@fisk.edu
by noon on Tuesday, April 12. I hope the excellent attendance enjoyed
by our February and March meetings will continue, and there is good
reason to think it will, for the April meeting promises an especially
good speaker and dinner.
September Meeting
Have you been called a “ Mad Scientist?” Come to the September 16th meeting of the Nashville ACS Section to learn more about “Famous Mad Hatters”. The speaker will be Dr. James F. O’Brien. The meeting will be held at Austin Peay State University, Sundquist Building , E106, Chemistry Department, beginning with a reception at 5:30pm and the program at 6:15pm. You can pick up your National Chemistry Week materials this evening.
Door prizes will be given. We are inviting our high school chemistry teachers and giving special packets to all who attend.
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For more information contact Dr. Ron Robertson
Or call 931-221-6298
October - National Chemistry Week - October 4 at the Science Museum
- No regular Meeting this Month
November Meeting
December Meeting
Directions to Blackstone's and to Belmont for this
week's meeting.
To Blackstone Restaurant and Brewery:
| From the north or west Take I-65/I-40 Exit 209B toward US-70S/Broadway/US-431/Demonbreun St Stay straight onto 14th Ave N/US-70 E Turn right onto Broadway Stay straight on West End Ave Restaurant is on the right with parking adjacent |
From the south or east Take I-65/I-40 Exit 209A toward US-70S/Broadway/US-431/Demonbreun St Stay straight onto 13th Ave S Turn left onto Broadway Stay straight on West End Ave Restaurant is on the right with parking adjacent |
To Belmont University:
Take I-65 Exit 81 at Wedgewood Ave
Turn right if coming from the north, left if coming from the south
Turn left at Magnolia Blvd (the two-stoplight intersection)
Turn left at the light onto 18th Ave S
Take an immediate left (at the end of the concrete median) onto Acklen Ave
Turn right at the stop sign
Turn left into the parking lot behind the Hitch Science Building
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since April 20, 1999.