ALPHA s1 CASEIN Affect On Cheesemaking

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The alpha s1-casein is a protein polymorphism of goat milk first described in Europe, in the French Alpine and Saanen breeds, in the early nineteen eighties, and is one found in all dairy goat breeds.

These polymorphisms have been found to affect cheese-making due to differences in protein content, renneting properties (faster coagulation and firmer curd) and a possible connection in relation to cheese flavor. In one study, the results of researches conducted on homozygous individuals for the various alleles confirmed the effects of genotype on the casein content in milk by showing the cheese-making yield observed in milk produced by those animals with strong alleles was 7 per cent higher in comparison with those with medium alleles and 15 per centĀ  higher than those with weak alleles.

Knowing the specific genetic polymorphism at goat casein loci on breeding stock would allow the breeder to set up breeding and selection programs targeted towards the improvement of cheese-making yield by selecting for high expression alleles, or selecting for animals with low levels which may be of benefit to those with milk or caseinĀ  sensitivities.

Fortunately, Veterinary Genetics Laboratory at University of California, Davis, is making such testing possible in the United States. The test is designed to detect animal with high level variants and low level variants for casein. Accordingly, any combination of animal with high content of alpha s1-casein will produce high amounts of alpha s1-casein in milk. A combination of animal with a high content of alpha s1-casein in milk and low content of alpha s1-casein will produce intermediate amounts of alpha s1-casein. Any combination of animal with low content of alpha s1-casein will produce low amounts of alpha s1-casein in milk.

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Goat Milk Products Benefits To Elderly Adults

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As we age, the changes in our bodies create challenges for sufficient nutrient intake and absorption. Goat milk and dairy goat products provide good source of protein, calcium, minerals, vitamins and beneficial fats to fulfill elderly adults nutritional requirements.

Normally, elderly adults lack the motivation to cook nutritional meals especially if it has been their daily routine throughout their entire life. Therefore, dairy goat products, such as milk, cheese and yogurt which do not require cooking or preparation, when combined with other nutritious, ready-to-eat foods like fruits, bread or crackers, can provide a nutrient-dense, protein-rich meal with little effort.

Elderly adults with gum and mouth problems, like dentures or missing teeth, along with reduced saliva production, create problems chewing and swallowing solid foods. Goat milk and soft cheeses require no or little chewing, and can be combined with other soft foods to provide variety, like pureed fruits.

Many elderly adults tend to drink less than optimal amounts of liquids due to reduce sensation of thirst. Milk is nearly 90 percent water, and can provide hydration in a form that many elderly adults find more appealing than water. Milk is also easily flavored to suit particular tastes.

Some elderly adults take diuretics, which cause elevated excretion of important minerals like potassium, calcium and magnesium. Goat milk has 134 per cent more potassium than cow milk, and also has higher levels of magnesium.

Food moves more slowly through the gastrointestinal tract of the elderly adults , often resulting in constipation. Goat milk is highly digestible and 100 per cent of the protein in milk is absorbed before it reaches the large intestine. Cultured goat milk products, such as yogurt, buttermilk and kefir, also contain bacteria that are beneficial to gastrointestinal health.

Elderly adults often complaint of lack of appetite, their taste have changed and the texture of many foods are disagreeable. Lack of appetite combined with reduced nutrient absorption can cause weight loss and dwindling muscle tissue. Whole goat milk is calorie and protein-rich, containing more fat, protein and amino acids than cow milk. Goat milk and dairy goat products have mild taste and the smooth textures are usually easily accepted. They are also easy to blend with cooked foods and milk, plain yogurt or sour cream can be used to moisten foods which would otherwise be dry or difficult to chew.

Conclusion, goat milk and dairy goat products provide an immediate source of energy and important nutrients to you and elderly adults.

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Buttermilk Dairy Milk Eggnog Flavored Milk Heavy Cream Light Cream Whipping Cream

Sour Cream Whipped Toppings Yogurt Packaged Cheese Feta Mozzarella Parmesan Provolone Ricotta Vegetarian Blue Cheese Cheddar Cheese Blends Almond Milk Soy Milk Milk Substitutes Butter & Margarine Cheese Assortments & Samplers

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