<body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/platform.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar/4944846112905529641?origin\x3dhttps://welovevinegar.blogspot.com', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe" }); } }); </script> <iframe src="http://beta.blogger.com/navbar.g?blogID=8037990" height="30px" width="100%" marginwidth="0" marginheight="0" scrolling="no" id="navbar-iframe" frameborder="0"></iframe> <div id="space-for-ie"></div> <body>

[12 December 2008]- THE Machine.

Day 1 & 2

Some said it smelled like shit, some said it smelled like food. This scent was what greeted us on the first day of this experiment, the glorious star of the show- Escherichia coli. There we gathered, in the labs of Q6 getting used to the sweet aroma and knowing that it was just the beginning. We were in the presence of two mean-looking machines, which we found out to be the fermenters. Honestly, I thought they looked tortured.


I mean, look at the poor thing, all covered in tubes like it was some kind of science experiment.

.....

Wait a sec, it is.

Anyway, this one was still sealed with aluminum foil because it was just out of the autoclave.


We looked into the parts of the fermenter and its purposes and such. Here's a drawing:






The names of the parts basically tells the purpose already, doesn't it?

And here's an attempt to label a photo of the fermenter:


It's so much easier in 3D, I swear. OTL




-------------------------------------------------------------------------------------------------

Preparation of Media, Equipment and Seed Culture
WELCOME to our FUN lab practical session...

Media Preparation (Day 1)

1. 50g of LB was added to 2.0L of distilled water.
2. 100mL was transferred into 500mL shaker flask and the remaining 1900mL in the 2L bioreactor and autoclaved at 121ºC for 20 minutes.
3. Ampicillin was added to a final concentration of 100µg/ml once the broth has cooled to below 50ºC







After weighing... we poured 100mL of the LB medium into this HUGE shaker flask


ehum ehum...some medium had spilled onto the table..Oops!!!

2L of distilled water is not as light as what you think,ahha...coz...is super heavy to pour them into the flask !!!

Equipment Preparation (Day 1)

1. pH electrode was calibrated using standard buffer solution.
2. pH, pO2, foam and level probe was installed into the top plate.
3. Additional agent lines for acid, base and antifoam were connected.
4. Other accessories such as exhaust condensers, air inlet and exhaust filters were also installed.
5. Cables except temperature probe was disconnected
6. All silicone tubings were clamped except for exhaust filter and female STT coupling of sampling unit.
7. All filters and sockets were covered with aluminumfoil
8. Equipment was autoclaved with steam at 121ºC for 20 minutes.
9. pO2 probe was polarized for at least 6 hours and calibrated by aerating with nitrogen.
10. Additional lines were connected to peristaltic pumps.





Using distilled water to test how a fermenter works first.



Seed Culture Preparation (Day 1)

1. pGLO transformed E.coli was obtained and streaked onto a LB/Amp/Ara plate and incubated for 24hrs.


It glow under the UV light! Yea !!! Nice one !

Seed Culture Preparation (Day 2)

1. Several colonies of pGLO transformed E.coli from the LB/Amp/Ara plate was obtained and transferred to flask containing 100mL LB medium with ampicillin.
2. Flask was placed in shaking incubator and incubated at 32ºC for 24 hours.


0Comments

♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦


♦CREW

Kevin
Khee Yang
Terence
Eugene
Bee Yong
Desiree
Shi Min
Wei Ling
Durga
Jaminah
Hakimah
Azmah

♦GALLERY


♦ CHAT


♦ LINKS

journal on vinegar
bcoz i like apple cider
Fermentation Metabolism


♦CREDITS

Pictures: KEVIN,JAMINAH
Layout : AZMAH