Sabtu, 26 Mei 2012

soal-soal additive substance dengan jawabannya(english version))


ADITIVE  SUBSTANCE
1.       What is mean  “additive substance on food?
Answer          : something that is added, as one substance to another, to alter or improve the general quality or to counteract undesirable properties.
2.       Mention the function of additive substance!
Answer          :

1                     To coloring
                        To sweeteners
3.                            To preservatives
4.                            To flavors
5.                            To emulsifiers and stabilizers
6.                            To thickeners
7.                            To acidity regulator
8.                            To  humectant


3.       In fact, every food substance have natural color. But, why there is food color that must be adding on food?
Answer          :


  give the impression of appealing to consumers
  improve the appearance of a material that fades
  uniformity of food colors
  stabilize the color
  cover up or cope with changes in color during processing


4.       Why NaCl included in food substance?
Answer          : because NaCl is usually used as a preservative and flavoring food
5.       Mention the examples of natural and synthetic color on food!
Answer          : natural colour                    : teak leaves, chili, turmeric, sugar. etc.
                          Synthetic colour                 : tartazin, saset yellow, ponceau, alularet
6.       Mention the characteristics of food that using synthetic color!
Answer          : more striking color and brighter than the natural coloring
7.       Mention 5 kinds of preservative substance, also the product of food or drinking that can preserved by using that preservative substance!
Answer          :
Sulfur Dioxide                                              :  fruit juices, dried fruits, dried beans, syrup, andpickles.
Potassium Nitrite                                         : corned beef
Bisulfite and metabisulphite                     : meat
Antioxidants                                 : oils, butter or margarine, nuts and other foods
8.       a. What is mean “antioxidant substance”?
Answer          : substance the body needs neutralize free radicals and prevent damage o / free radicalswith a complete lack of electrolyte is owned and inhibit free radical chain reaction of free radical formation cognizable cause oxidative stress
b. Mention the example of food that using antioxidant substance!
Answer          : mango, pear, strawberry, banana, orange, papaya, starfruit, guava
9.       Mention several kinds of synthetic sweetener that must be stop the using and didn’t know the safety to consumed!
Answer          : Rhodamin B, Metanil Yellow Rhodamin B 
10.    How  NaCl that have function as preservative!
Answer          : This can occur because of H2O will move from low concentration to a place that has a high concentration. This is very favorable for seed recalsitran, because as we knowrecalsitran seed is seed that has a high water content and very sensitive to low waterlevels decline. High water levels cause the seed germination and recalsitran always havemoldy during storage or shipment to the place of destination.
11.    Why on food must be adding flavor substance?
Answer          : to add the taste of food and to strengthen the flavor of food
12.    Why vitamin or mineral must be adding in the acid food and drinking?
Answer          : helps metabolize amino acids (protein) which is one component of the brain form


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