Showing posts with label Food Additives. Show all posts
Showing posts with label Food Additives. Show all posts

11 March 2013

Reflection

so hello!
even it's quite late for me to do my refelection, but , hehe here it is.

before entering this competiton, i used to eat anything that i want including all kind of snacks without thinking about the effects.
after entering this competition, i gain more knowledege about food additives, the advantages, and the disadvantages too.
after doing some research with my friends, i can remember the facts easily.
besides, after entering this competition, i know a lot of information on how to edit videos and pictures.
so, as a conclusion, this competition gives a lot of benefits to me :)

last but not least,
                                                                                     Hanis Suraya, 5 Bakerara




10 March 2013

Reflection

So hello everyone!

Food additives? If I wanted to compare my answer before and after entering this competition, I would say it will be completely different. I learnt more about food additives, the advantages and not to forget the disadvantages as well. I actually like this kind of competition because I gain more and more knowledge about the topic very specifically because I have to make surveys, I have to google it, ask for informations and etc. And I would like to express a big thank you for teachers, my classmates and also everyone who had involved in this competition directly or indirectly.

So, food additives, are they good or bad? ;)


Fazleen Anis, 5 Bakerara :)

05 March 2013

Reflection.

So as a conclusion, by entering this competition, we got to know a lot of new knowledge about the food additives and the benefits. But not to forget the harm of food additives to our body. Next time, you just have to be caution when eating so that you could maintain a healthy life and prevent diseases. It's good to learn about the food. Ulala.
-mawar

In my opinion, this competition gave me a lot of useful information about what we could and could not eat. Food additives is actually good for the food but not to our health. So as a concerned person, we should try to avoid and ask others to join us. We can make the difference. With that, I'm cool. Peace
//Dinie//

Food additives could be bad.




Most concerns about food additives have to do with man-made ingredients that are added to foods, including:

  • Antibiotics given to food producing animals
  • Antioxidants in oily or fatty foods
  • Artificial sweeteners, such as aspartame, saccharine, and sodium cyclamate
  • Benzoic acid in fruit juices
  • Lecithin, gelatins, corn starch, waxes, gums, and propylene glycol in food stabilizers and emulsifiers
  • Many different dyes and coloring substances
  • Monosodium glutamate (MSG)
  • Nitrates and nitrites in hot dogs and other meat products
  • Sulfites in beer, wine, and packaged vegetables
Hm food additives could be bad for our health isn't it? So let's try to avoid eating food that contains a lot of food additives ok guys? :)

Types of food additives

Colours
These drinks were used in a taste-test. Volunteers had to say which one they preferred.

All three drinks taste the same!
We 'taste' with our eyes. If food does not look appealing then we often think it tastes bad as well.
Often, when foods are cooked or processed for sale, they lose their natural colour and look less tasty. Colourings are often added to help make the food look appealing and so 'taste' better.

Three orange drinks








Emulsifiers

Emulsions in food are mixtures of oil and water. These normally do not mix and will separate if left without an emulsifier. Roll over the photograph of the mayonnaise to see the effects when the emulsifier is not added.

Mayonnaise contains oil and water. The emulsifier keeps these mixed and without it the oil and water separate.





Flavourings
The acceptability of any food product greatly depends on the impression of taste when it is eaten. Our sense of taste is really a combination of two of our senses, taste and smell . Both of these sense respond to certain chemicals.

Gelling agents
The functions of these substances is fairly self explanatory:
  • Gelling agents gel foods, i.e. they give shape and structure
  • Thickeners or thickening agents make foods thicker
  • Stabilisers help to maintain the physical and textural properties of foodstuffs through their production, transport, storage and cooking

Drinks, like this chocomilk, contain cocoa powder that can form a sediment when the drink is on the supermarket shelf. Stabilisers help to prevent this.

Preservatives
Most preservatives today are actually fungistatic in their action. That means they prevent the growth of fungi, moulds and yeasts. They have little effect on bacteria but using a combination of preservatives, with antibacterial properties, can give good all round protection. Food preservatives help to control the spread of bacteria which can cause life threatening illnesses such as salmonellosis or botulism.



Bread will quickly go mouldy under the attack of microbes

Sweeteners

Sugar is a most important flavouring substance. It gives the sensation of sweetness and provides a source of energy. However, excessive sugar intake is linked with a number of health problems including tooth decay, obesity and diabetes.
photo of sweetener and sugar
Intense sweeteners are many times sweeter than sugar. A small amount of intense sweetener replaces a large amount of sugar

Anti-caking agents

Processed foods often contain ingredients that are mixed as powders. Anti-caking agents are added to allow them to flow and mix evenly during the food production process. They rarely have nutritional value and only a small proportion of the additives find their way into the food.
Some anti-caking agents may be found in foods. For example, magnesium carbonate is used in table salt to improve its flow during manufacture. It is left in the salt so that it flows well when being sprinkled onto food.
Examples of foods that contain anti-caking agents include:
  • vending machine powders (coffee, cocoa, soup)
  • milk and cream powders
  • grated cheese
  • icing sugar
  • baking powder
  • cake mixes
  • instant soup powders
  • drinking chocolate
  • table salt
photo of salt pot
Magnesium carbonate is added to salt to make it flow easily
Antioxidants
Oxidation reactions happen when chemicals in the food are exposed to oxygen in the air. In natural conditions, animal and plant tissues contain their own antioxidants but in foods, these natural systems break down and oxidation is bound to follow.
Oxidation of food is a destructive process, causing loss of nutritional value and changes in chemical composition. Oxidation of fats and oils leads to rancidity and, in fruits such as apples, it can result in the formation of compounds which discolour the fruit.
Roll over the picture to see the effects of oxidation on cut apple.
Antioxidants are added to food to slow the rate of oxidation and, if used properly, they can extend the shelf life of the food in which they have been used.
Acidulants
Acidulants are additives that give a sharp taste to foods. They also assist in the setting of gels and to act as preservatives.
Photo of fruitsThe pH of a food is a measure of its acidity, alkalinity or neutrality. Living tissues contain solutions called buffers which help to keep a constant pH inside cells.
Many natural foods are acidic. For example, oranges, lemons, apples, tomatoes, cheese and yoghurt contain natural acids, such as citric acid, that give them their characteristically sharp taste.
Many fruits contain natural acids that give them a sharp taste

Reflection of the Project

Everyone's gotta learn something from these posts right? As for ME, I do learn something useful in all aspects :)

Firstly :


  • THE BAD, THE GOOD AND THE FACTS
- Well, obviously, everything in this world has its good and bad things. But it is important for us to know about the FACTS as well! Besides that, I gain more understanding about, yeah, like what I wrote up there, THE BAD, THE GOOD AND THE FACTS.

  • TECHNICAL SITUATION
- Okay, this case, is like the most common thing would happen during the posting process. We were all like happily typing and SUDDENLY everyone goes, "TEACHER!!! WE CANNOT PUBLISH THE POST! HELP!" . Good thing about it? I learn how to be calm and settle things in a good way. Hey, it paid off okay?
scared of eating food? Drink Mineral water instead ! :P

Well, that's all from me folks! Have fun finding about the good and bad of food additives so that we can choose food wisely before we end up, well, sick or not. Till then!

Few Examples of Food Additives #4

Last Saturday, Fazleen Anis, Hanis Suraya and Atikah Azhar went to the canteen to make a few surveys about food additives. And what we found out, most students and their visitors ate something which contains a lot of food additives.... which is not really good for health. These are a few examples of types of food additives that we managed to record about it.


And look at Atikah Azhar, she's very addicted with this food that contains a lot of food additives. Let's take a look at this gif picture.


This actually shows that excessive intake of food additives will not lead us to a healthy lifestyle.

Why use food additives?

Lots of people enjoy making bread, cakes, wine, beer, and ice cream at home. However, most of today's food is bought from shops and supermarkets.
Food from supermarkets need to be in a good condition for a long period of time. Therefore, it contains food additives.
Additives are used so that these foods still have a consistently high quality. In some products, they are so essential that additives are used even in certain organic foods.


Additives are used in a range of food
In some countries, many food is lost because it 'goes off' due to microbial growth before it can be eaten. Food poisoning also shows the dangers of contaminated food and without the use of preservatives, it would quite likely be more common.
Preservatives, colours and flavours are the best known additives but in fact there are many categories of additives, each tailored to a specific purpose.

Opinions from Others about Food Additives #3


Food additives are chemicals that are added to food in small quantities for specific purposes.
These are our surveys based on their opinions about food additives.

Hope you guys enjoy their cool opinions :)

That's all from us, 
5 Bakerara

What is food additive?

Hey guys, do you know what's inside your food? Well, food nowadays contain many food additives. Do you know what is it? According to the web, food additive means an additive to food intended to improve its flavor or appearance or shelf-life.
Here's what you might like: 

Looks yummy isn't it? Do you know the content of the food you are eating? Do you? Do you? Do you? Follow on to our posts to know more about the food you eat. Is it good? Or is it bad

Life Without Food Additives #2

So, we, 5 Bakerara members wanted to share with you, how life is going to be with food additives. Basically, food additives have their own benefits but after all the delightfully juicy details, food additives also have their own disadvantages.

Click play to watch the positive side of food additives. 


Life with food additives :
a) Food additives can prevent food spoilage
b) Food additives can prevent from loss of appetite


Food Additives.... Good, or Bad? #1


Food additives are substances that is used to preserve food as well as to enhance its taste and appearance. And according to few researches, most food additives have little or no nutritional value, at all.


So here, we are going to share some advantages of food additives :


Food additives are added to food for specific purposes such as:
a) making food last longer
b) making food taste better
c) enhance the attractiveness of food
d) flavours of food

01 March 2013

Nur Mawaddah 5 Helpilia

Hi people! I'm Mawaddah. So, I'm one of the representative of 5H. I'm not really good in blogging but I'll try my best since my classmates are "depending" on me and my partner, Dinie. I guess so. The topic given is "Food Additives: Good or Bad?" Hmm let's find out soon. Aren't you excited? 

AMEERA TASHA 5 DORISIA

Uhm hey guys, well i am Ameera Tasha for representative 5 Primadori girls~~ Who's hungry? Yah me too. Uhm so me and my partner suf gonna make some entry about FOOD ADDITIVES. So make sure that you read all our cool post. Xoxo


Tumblr_mifgarhytl1rdtbm0o1_500_large

Hanis Suraya 5 Bakerara


so, hello everyoneeeeeeeeeeeeeeeeeeeee :D
im Hanis Suraya binti Huzir from 5 Bakerara
im one of my class representatives for this Chemistry Challenge - Food Additives

you'll know more about this later :)

Siti Nur Zulaikha 5 Gastisia


FOOD ADDITIVES



Hi, I'm Zulaikha :) 
do u guys know what is food additives??
In my opinion, it is something that is put in our food to keep it last longer and nice to eat.
for example: 
FOOD COLOUR
FOOD FLAVOUR
and many more..

SO, hope u guys enjoy all my entry :D

Anis Dayana Bt. Rosli 5 Cattleya


Hey hi hello. It's Anis Dayana from 5C typing on the keyboard. Let us explore the world of Chemistry in food additives together with me and my partner Nurul Ain. Good luck to everyone!

SUFIAH SAZLI 5 DORISIA

Hey everyone! Yes, I'm hungry for this blog because its all bout FOOD! FOOD! FOOD! I'm Sufiah Sazli, a representative for 5 Dorisia. Me and Meera will post some cool facts bout this huge thing called FOOD ADDITIVES : GOOD OR BAD? So yeah, before I munched on some craps, be sure to check on it and its up to you to decide if its good or not.




NO KIDDING, PIZZA DOES MAKES YOU DREAMS COME TRUE, DOES IT? ;)

Nurul Fazleen Anis Che Aziz (5 Bakerara)

Hello, everyone. So it's me, Nurul Fazleen Anis binti Che Aziz, one of the representatives from 5 Bakerara for this Chemistry Challenge 2013.


The theme given for this challenge is, Food Additives; good or bad? Well, food additives are substances that is used to preserve food as well as to enhance its taste and appearance. And according to few researches, most food additives have little or no nutritional value, at all.

Hopefully we all can gain more knowledge about food additives as well as do our best to win this challenge, yay!!! The question is, food additives, are they good or bad? We'll discover it soon. Be afraid.


Nurdinie Ridzuan 5 Helpilia

Hello it's Dinie 


Looks yummy huh? It has food additives in it, is it good or bad? You will know later on.