Wednesday 17 December 2014

NO NEED FOR ALL THAT MEAT

I love meat. Being a vegetarian scares me. That is how much I love meat.

One of my professors could not stress enough the fact that the human body has no way to store excess dietary proteins. In essence, the human body has no way to store the element nitrogen which is the main component of proteins. Proteins are unique because they contain nitrogen.

The human body stores excess carbohydrates as glycogen in the liver and when that store is full, it is converted to fat and stored. Fat is stored in the adipose tissue which has infinite storage. Proteins are used where there is need and the excess is excreted.

Nitrogen the main component of proteins is removed by a process called deamination and is excreted in humans as urea via urine as the main route. The remaining backbone resembles carbohydrates and has lost its function as a protein.

Proteins are used to build and repair tissue and perform other cellular functions and the excess is excreted as soon as possible.

For this reason, it is foolhardy to eat a whole kg of meat as it will all end up being wasted. A normal person requires only a few grams of meat to meet their daily requirement. As a biochemist I know this, but as a meat lover I ignore it especially around the holidays. It is time to eat meat.




Wednesday 10 December 2014

FOOD SAFETY THIS FESTIVE SEASON

Self experimentation is an archaic method that the science community left. 21st Century scientist boost of no longer using such "stupid" methods; unless you are me.

I decided to eat food that had been reheated and left covered all day in the microwave.

Your asking yourself  "Why did I do it?" I don't know. It is pretty obvious the end result.

Maybe I hate seeing food going to waste so I decided to eat it. Needless to say it is the reason for this post.

I pride myself in having a strong stomach, so after 4 hours, at 1:30 AM on Sunday morning my troubles began. I did not require hospitalization but it interrupted my sweet sleep.

Never again. But I know myself. I cannot resist experiments. That same day I carried out a control and at food that was reheated properly. I was okay. My troubles were over.

Safety tips 


Reheat food only once. Once food is cooked it should be reheated only once. It doesn't matter if it is using the microwave or the stove. Only once.

Freezing and refrigeration. Low temperatures SLOW growth of microorganisms but it DOES NOT STOP growth of microorganisms. This means that as soon as you raise the temperatures the microorganisms start to grow. Also you cannot store food indefinitely in the freezer.

Heat. This is the only sure way of killing microorganisms and at the same time leaving the food palatable. Talk about having your cake and eating it too.
I am yet to see other methods such as disinfectant and UV light employed without risks involved.
To be sure that all microorganisms are killed, heat food to temp above 70 degrees Celsius for about 10 minutes, i.e. at simmering point.

Eat cold food. Before the invention of the microwave we ate cold food if you didn't have the time to use the stove. Some food lose their flavour, nutrients and texture when reheated. For example fish dishes and some vegetable  are rarely reheated to prevent them from becoming flaky and overcooked.


Danger Zone


This is where microrganism growth is favoured and food spoilage is accelerated. 

Food left covered at room temperature (200C – 270C) or maintained at lukewarm temperature for a long time is a hazard. Results from my self experiment show that even reheating in the microwave for long periods (more than 5 minutes) does nothing to stop the inevitable.

Lastly, during this festive season stay safe and make sure you watch what you eat. If food has a strange taste/flavour that you associate with spoiled food then leave it. It is better to stay hungry and waste food rather than make the loo your best friend: best case scenario.

Wishing you a happy festive season
The Kenyan Food Biochemist
Brian Kibue

Thursday 4 December 2014

WHO IS A BIOCHEMIST

To all those pursuing a degree in Bsc. Biochemistry 

Biochemistry is not a new field in science. In fact it has been around since the late 19th Century. Well this is not a history lesson so I will not get into the details. The field has grown into its own prominence and colour and has become intertwined with other major disciplines as evidenced by the fact that Biochemistry is an essential contributor to modern medicine.    

"Who is a Biochemist?" This is a question that is frequently posed to all biochemists. People seem not to understand the definition. I did not do biology and chemistry. No!! Its not that simple. What I did for the past 3 years in university was study the living aspect of chemistry.

A biochemist is someone who studies the chemistry of life. Biochemistry is the study of the chemical composition of the living matter and the biochemical processes that underlie life activities during growth and maintenance.

Biochemist study the basic unit of life: the cell. All the chemical processes that take place in the cell are under the domain of Biochemistry. This involves chemical energy conversions (metabolism), formation and integration of biomolecules and chemical signalling pathways.

Another aspect which evolved quite recently is the integration of molecular biology with biochemistry. Molecular biology involves the study of nucleic acid which is central to the knowledge of life. Inevitably, Biochemistry and Molecular Biology integrated and this field holds the keys to unlocking the mysteries of DNA and of life as a whole.

Kenya is developing into an industrialized nation, Industries need scientist and so Biochemist will be needed. This may happen tomorrow or in 50 years, I have no way of predicting. But one thing is for sure, there is a wide field waiting in Kenya for the biochemists to conquer.

Finally,

To the graduating class (2014) Bsc Biochemistry.

Congratulations!!

The big day is here. GRADUATION DAY.

Let us not forget the past 3 long years of hard work, stress, early mornings, late nights, fun at times, meeting new friends and so much more. We have generally grown in both stature, emotion and knowledge.

Some of us lost our afros and baggy jeans. Others became talkative even though it was during the last year. We made permanent friends who we will keep for the rest of our lives and our kids will know them as auntie and uncles. The stories are endless and am limited by my memory.

It was tough and we need to take a day off from all the worries and celebrate. On the 5th December live in the moment. Enjoy the showers of praise from family and friends. You deserve it. It is only for a day so take it easy.

For people like me, all we have known to do all our lives is to go to school, read and pass exams. Am confused by all the change that is happening around me and in my life. As it is said "change is the only constant in life." I am now willing to embrace the future no matter how uncertain it looks.

After all, we have been equipped with knowledge and surrounded with people who support us and above all our God is great. He has taken care of us before so let us continue to trust in Him.

For those who have found their footing in this mucky and turbulent world of our, you are the lucky ones. We will be with you shortly.

Above all, am hoping that EVERYONE  will find something to do that they love. It doesn't have to be Biochemistry but at least let it be legal. May you all find joy in working and making money and in changing our world for the better. Notice that I did not say Kenya but the world. Do not be limited by your environment and pursue to change the world.

One of the greatest life lessons I have learnt came from a Japanese cartoon called Hunter x Hunter episode 148. As we strive to achieve what we want, do not forget to enjoy the journey. Form relationships everywhere you go. You should enjoy the little detours to the fullest because that is where you will find the things that are more important than what you want.

Personally I want to say this to all of you. "I see something in all of you, but I don't know what it is" 

In conclusion,

LET US ALL MEET IN THE HIGHEST ECHELON OF BUSINESS, SCIENCE AND POWER!!


Regards
Brian Kibue
The Kenyan Food Biochemist.