Skip to main content

My Streaks!!!

Today's microbio lab! I entered the lab with enthu! We had planned learning streak plate method today. The medium agar was ready. My friends prepared it and autoclaved by morning 8.30. Usually i reach college only by 9 in morning! :D :D Don't mistake that i'm irregular! I go by college bus! It crawls like a snail to college!

Okay., let me come to the point now. We started our experiment by 12 noon. We poured AGAR to our plates. Solidified the agar!

Mam started explaining how to streak. When she started streaking, our agar started tearing. :( :(  The reason is we added less agar in the medium.  We added 1.8g of agar for 100ml. But., mam felt like "we must add some more".

In between., we  a few tried with the already prepared plates. I torn two plates :) :) . Didn't get good streaks.
Then., we prepared Agar with 2g/100ml and 2.5g/100ml. We autoclaved it. We didn't continue pouring and solidifying because time was about 4p.m. Lab time gets over by 4.30p.m. So, we stopped and decided to continue in next lab.

Next lab I hope i'l get to know why my streaks torn my agar.
A happy day of learning!

Comments

  1. I think holding the loop a little horizontal and making sure you streak only on the surface of the agar will solve the issue.
    And if it still tears, try reading up more on agar preparation. :)

    ReplyDelete
    Replies
    1. mm., We tried it. Still the problem exists. So, gonna try different preparation by increasing agar content. Thanks for the suggestion Leo Paw. :)

      Delete

Post a Comment

Popular posts from this blog

Sea Butterfly!

Neih hou!  Don't roll you eyes wondering what it is! "Neih hou" is how you say "hello" in Cantonese. Guess what, I am in Hong Kong and therefore the language Cantonese. I came to Hong Kong this summer as an intern before officially joining as a PhD Student. This is my second experience abroad, far away from home, new language, new culture, I expected me to have a "really" bad cultural shock, but, actually I experienced only 50% of what I expected. For a girl who have used the marina beach only for eating "sundal", bikini in beach was a shock (FEEL FREE TO JUDGE ME!). The first time, I went to the big wave beach here, I was the only one who was totally covered, when everyone was enjoying their Beer, I was slowly sipping my lemon juice (THE ODD ONE OUT!). I realized how beautifully different the world outside is! There is no single standard for right or wrong, it varies in different countries, in different regions around the world. And it

The Butterfly flew for the first time!

Hi dear sweet lovely reader, Didn't meet you for a long time... Just after complaining about the stipend problem in the last post, I actually wanted to write a lot here, but, couldn't find time (Such a lazy girl, I am!). As you might be knowing, the author (me) is the butterfly here :P And, I flew for the first time!! YEAH! I FLEW! I flew like a butterfly! It was an awesome experience flying for the very first time! (ow, no! I dint put a trans-gene in my body and fly after getting  a pair of wings, but with a passport and VISA). I'm this girl, full of dreams wishing to do "this", "that" and "all kind of stuffs that one can do". And, one among those dreams was to fly one day! TO FLY FREE!(I mean, not free of cost :P, but liberation) I always wanted to fly in those big, big airplanes, but, I always have avoided that mode of transport. Reason? Obviously, it would burn a big hole in my dad's pocket (actually he can afford if I wan

Lowry Assay Principle and procedure

Though there are several protein assays available, the most preferred one in many laboratories is "Lowry assay". It is effective in the concentration range of 0.01 mg/ml to 1 mg/ml. And, as an additional info, the paper published describing the procedure and principle of Lowry Assay is the most cited paper in the scientific history. (Feeling like, "Wow! I want to publish one to compete with Oliver.H. Lowry"???  :P) Why Lowry?   Though there are several other protein assays, mostly Lowry assay is used in many laboratories. The reasons for preferring Lowry are: sensitivity of the assay, highly reproducible, cost effective, easy to perform. Biuret assay is generally used for higher protein concentrations like tissue samples but, Lowry for less concentrated samples and hence used in most of the molecular biology laboratories where there will be need for assaying comparatively less concentrated protein samples (in most cases where we attempt to produce enzymes). Oth