Sorbitol is hygroscopic, so the food by adding sorbitol to prevent the dry food, to keep the food fresh and soft. Sorbitol used in bread, cake, obviously. Sorbitol sweeter than sucrose, and not used by some bacteria, the production of confectionery sweetness in a good raw material, Sorbitol is also an important raw material production of sugar-free candy, processed foods of various anti-dental caries. Sorbitol does not contain aldehyde, easily oxidized, and amino acids in the heating does not produce Maillard reaction. Sorbitol has some physical activity, Sorbitol and carotenoids can prevent eating fat and protein denaturation, Sorbitol in the condensed milk to add sorbitol to extend shelf life, can improve the small intestine of the color, flavor, Sorbitol significant for the stability of the fish meat and the role of long-term preservation. Sorbitol in jam preserves also have the same effect. Sorbitol metabolism is not caused by elevated blood sugar, diabetes can serve as a food sweetener and nutrients.
http://www.chinafooding.com/Sorbitol

Yes, its safety when used as a food additive has been approved by the U.S. Food and Drug Administration (FDA), European Food Safety Authority (EFSA),  Joint FAO/WHO Expert Committee on Food Additives (JECFA), as well as other authorities.

FDA
It is GENERALLY RECOGNIZED AS SAFE (GRAS) and can be used as an humectant, nutritive sweetener, sequestrant, stabilizer and and texturizer in food.

The following are the approved food categories with the max usage (7):

Hard candy and cough drops: 99%
Soft candy: 98%
Chewing gum: 75%
Nonstandardized jams and jellies, baked goods and baking mixes: 30%
Frozen dairy desserts and mixes: 17%
Other foods: 12%
EFSA
Sorbitol E420(i) and sorbitol syrup E420(ii) are listed in Commission Regulation (EU) No 231/2012 as an authorised food additive and categorized as “sweeteners” (8).

Authorised Uses And Use Levels

Most of its application is listed in Group I with the usage of “quantum satis”. It can also be used as a carrier in all food additives and nutrients for the purpose other than sweetening. (9)

UK Food Standards Agency
Categorized in “Sweeteners” (10)

Food Standards Australia New Zealand
In Australia and New Zealand are all with the code number 420. (11)

JECFA
Functional Class: food additives, humectant, sweetener, stabilizer, texturizer, sequestrant, thickener. (12) (13)
 

Acceptable daily intake: “ADI not specific” set in 1982 and there is no need for a separate evaluation and ADI establishment for sorbitol syrup in the 2018 evaluation. (14) (15)

http://www.chinafooding.com/Sorbitol

Sodium citrates chemicals, food additives, development, buffer emulsifier, stabilizer, and the chemical industry, metallurgical industry, the process of absorption of sulfur dioxide exhaust, Sodium citrates is widely used in non-hydrogen electroplation. Sodium citrates citric acid, sodium salt, see: MSG, citric acid citric acid citric acid sodium phosphate 3-forms, also referred to as food additive E331.
http://www.chinafooding.com/Sodium_citrates

Yes, it has been approved safe by the U.S. Food and Drug Administration (FDA) and European Food Safety Authority (EFSA), as well as the Joint FAO/WHO Expert Committee on Food Additives (JECFA).

FDA

Sodium citrate is generally recognized as safe (GRAS) when used in food with no limitation other than current good manufacturing practice. (6)

It can be used in following products (7):

Milk and cream
Cheeses and related cheese products
Artificial sweet fruit jelly, jam, and preserves
EFSA
Monosodium citrate E331(i), disodium citrate E331(ii) and trisodium citrate E331(iii) are listed in Commission Regulation (EU) No 231/2012 as an authorised food additive and categorized in “ additives other than colours and sweeteners” (8).

Approved uses
Sodium citrates are classified into “Group I” with the maximum use levels “quantum satis”, and also listed in its separate uses. The following food may contain it (9):

UHT goat milk, dehydrated milk
Edible caseinates
Cheese
Frozen fruit and vegetables
Canned or bottled fruit and vegetables
Jam, jellies and marmalades
Meat preparations, unprocessed fish
Table-top sweeteners in liquid, powder or tablet form
Infant formulae
Processed cereal-based foods and baby foods
UK Food Standards Agency
Categorized in “Others” (10)

Food Standards Australia New Zealand
It is approved ingredient in Australia and New Zealand with the code number 331. (11)

JECFA
Trisodium citrate

Function Class: food additives, acidity regulator, sequestrant, stabilizer. (12)

Acceptable daily intake: ADI “not limited” set in 1973. (13)

Sodium dihydrogen citrate


Function Class: food additives, acidity regulator, sequestrant. (14)
 

Acceptable daily intake: ADI “not limited” set in 1979. (15)

http://www.chinafooding.com/Sodium_citrates

Neotame has a clean sweet taste like sugar. Neotame can be used in both cooking and baking applications. Food and beverage companies will have the flexibility to determine Neotame use on a product-by-product basis.