1. Sanitizing/health
1.1. Enzyme/bakteria
1.2. Change pH
1.3. High temperature
1.4. Increase salvia generation
1.5. Sugar free
1.5.1. Aspartame
1.5.2. Sorbitol
1.5.3. Xylitol
1.5.4. Other sugar substitutes
1.6. Active compounds to clean teeth
1.6.1. Flour
1.6.2. Alchohol
1.7. Gum with vitamins
1.8. Omega-3-oil gum
2. Lasting taste
2.1. High concentration
2.2. Nitrogen packaging
2.3. Controlled release rate
2.3.1. encapsulate sweetness
2.3.2. sustained lasting release rate
2.4. extraction rate
2.4.1. Solubility
2.4.2. Gum base
2.4.3. Size
3. Special effects
3.1. Liquid inside with special taste
3.2. Gum with caffeine
3.3. Gum with pharmaceuticals
3.3.1. Pain killers
3.3.2. Digestive system
3.3.3. Blood pressure
3.3.3.1. Beta-blockers
3.3.3.2. Methyldopa
3.3.3.3. calcium antagonist
3.3.4. eyes/ears
3.3.5. Hormones
3.3.5.1. estrogen
3.3.5.2. testestorone
3.3.6. Nicotine
3.3.7. Hearth diseases
3.4. Gums for halloween/partys
3.4.1. Gum releasing colors
3.4.2. Gum shining in neon light
3.5. Cold breathe
3.5.1. Menthol
3.5.2. Initial burst release mechanism
3.5.2.1. Super soluble materials
3.5.3. Add substances
4. Not melting
4.1. Ingredients with high melting point
4.2. Incompressible shell
4.3. Hard crunchy part
5. Improve odor
5.1. Taste of soda
5.2. licorice
5.3. menthol
5.4. Strong taste
5.4.1. High mint concentration
5.5. Taste of popular drinks
5.6. Chocolate
5.7. Taste of flowers
6. Degradable
6.1. Natural gum base
6.1.1. Plants
6.1.1.1. Mastic
6.1.1.2. Chicle
6.1.2. Natural rubbers
6.2. No artificial compounds
6.3. Fully organic
6.4. Water soluble
6.4.1. Change solubility with proteins
6.5. Agar
6.6. Disulphide bonds
7. Appearance
7.1. Shapes
7.1.1. Cartoons
7.1.2. Letters
7.1.3. Animals
7.1.4. Fruits
7.2. Colors
7.2.1. Patterns
7.2.2. National colors
8. Packaging
8.1. Waterproof packaging
8.2. Hard packaging
8.3. Plastic box
8.4. plastic figure where you press button
8.4.1. fruit
8.4.2. Cartoon
8.4.3. animal
8.4.4. other figures