Dairy Ingredients for Food Processing

Dairy Ingredients in Infant and Adult Nutrition Products 521

tions are met. Quality control procedures are

rigorous with regard to microbiological

quality and nutritional profi les to ensure

safety and adherence to applicable laws,

which are enforced in virtually every country.

Typically, some specifi c nutrient require-

ments differ slightly between countries, chal-

lenging the development of single, globally

acceptable products.

Adult Nutrition

A wide variety of nutritional products use

milk - derived ingredients as a major source of

nutritional content. Adult nutrition products

can be classed into three broad categories:

1. Medical/therapeutic nutrition products:
   Provide nutritional intervention in
   patients who are malnourished, have

heat treatment and homogenization. Liquid
products are heat sterilized and aseptcially
dispensed into hermetically sealed containers
or containers that are sealed and then heat
treated (called retort processing). Powdered
products are spray dried and dispensed into
containers that are typically fl ushed with
nitrogen gas to reduce head space oxygen
levels and stabilize oxygen - labile ingredients
(e.g., certain vitamins, unsaturated fats).
Certain formulas, particularly those con-
taining extensively hydrolyzed protein or
free amino acid protein systems, require
additional stabilizers and emulsifi ers to
provide emulsion stability during processing
and shelf storage, because this is usually a
function of the intact or relatively intact pro-
teins. Prior to commercially distributing the
products, each batch is sampled and tested to
ensure that nutritional and quality specifi ca-

Figure 20.2. General manufacturing scheme for a typical infant formula.

Slurry Components

Water

Carbohydrate

Minerals

Finished Product Tank

Blend Tanks Surge Tank

Homogenizer Hold Tube

Heat Treatment Homogenizer

Proteins

Slurry Components

Oils

Stabilizers Oil Soluble Vitamins

Standardization

Water Soluble Vitamins

Drawing Date: 7/15/10

Typical Infant Powder Formula

Heat Treatment

Hold Tube

Evaporator

High Pressure Pump

Multi-Stage Spray Dryer

Agglomerator

Surge

Hopper

To Filler

Slurry Components Oils (including AA and DHA) Sieve