Dried raspberry pomace
Dried raspberry pomace (dried pomace or ground to the fraction ordered)
Dried raspberry pomace (dried pomace or ground to the fraction ordered).
Product obtained from washed, crushed, squeezed and dried raspberries, which are then sieved, ground and packed into individual packages. Raspberry pomace is created as a by-product in the production of juices and can be an important, relatively cheap and valuable additive to animal feed. The dried product with moisture content < 14% is composed of: 6-10% total protein, 12-15.0% crude fat, 47-49% crude fibre, max. 4% ash, 0.15% calcium, and 0.24% phosphorus.
In the chemical composition of raspberry pomace, noteworthy is the high content of nitrogen-free extractive compounds in the form of sugars, pectins and organic acids, flavonoids and vitamins compared to other ingredients. The research results confirm the influence of organic acids and phenolic acids contained in raspberry pomace on its palatability and feed intake. It is also worth noting the high content of dietary fibre in fruit pomace. Dietary fibre buffers and binds excess hydrochloric acid in the stomach, increases intestinal filling, improves the tension of intestinal walls and the general condition of the digestive tract mucosa.
Passing through the digestive system, fibre stimulates the secretion of digestive enzymes by the stomach cells. It creates a favourable substrate for the development of the desired bacterial flora in the large intestine. The properties of dietary fibre also contribute to the alleviation of digestive disorders and intestinal inflammation, counteract diarrhoea, improve intestinal peristalsis and the passage of food content. This movement is necessary for the proper course of digestion and excretion. Raspberry pomace is rich in neutral detergent fibre (NDF), on average approx. 34.6%. This fraction with a low level of lignin is digested by microorganisms in the cecum and colon in monogastric animals, and in ruminant animals by bacteria and ruminal protozoa. During the fermentation process, volatile fatty acids (butyric acid and others) are released, which are used by adult animals with a fully developed digestive tract (including sows, boars, cows, horses). The fibre fraction, especially in the case of pregnant sows, improves the animals’ sense of satiety. It reduces the frequency of aggressive behaviour, often improves the quality of faeces and reduces the tendency to constipation. In dairy cows, fibre is initially digested in the rumen by protozoa, mainly infusoria, while bacteria process the partially digested fibre into metabolites absorbed into the blood through the rumen mucosa. In the case of a too high share of concentrated feed with high energy and protein concentration in the feed ration and a too low share of fibrous feed, the acidity of the rumen content slowly begins to increase, leading to digestive disorders, most often of a chronic nature, referred to as rumen indigestion. Mass death of protozoa, mainly infusoria (rumen defaunisation), occurs, the biological balance of the rumen content environment is seriously disturbed, as a result of which fibre is no longer digested. The fibre from raspberry pomace is a natural buffer, stabilising the pH of the rumen contents, which ensures proper transformations in the rumen. Dried raspberry pomace should also be considered a valuable feed also due to its significant content of mineral components. However, it should be noted that when compared to beet pulp or wheat bran, they contain approx. 5 times less calcium, which should be taken into account when balancing feed rations. Dried raspberry pomace is produced in accordance with the requirements of the European feed safety standard GMP+ and the ISO 9001 standard.
