Application and Exploration of Dregs in DDC Science and Technology Day
Absrtact: China is a big country of fruit cultivation, processing and consumption in the world. Fruit residue is rich in nutrients, including crude protein, crude fat, crude fiber, sugar polyphenols and total flavonoids. Fruit residue, as the main waste in fruit industry, can not be used in the production of high value-added products at present, but as feed or feed additives, the application has achieved great results. In this paper, the application of fruit residue in animal husbandry was summarized, and the prospect of fruit residue in feed additives was explored according to the characteristics of feed additives.
Key words: feed, fruit dregs, additives
Fruit residue is used as feed material, mainly in the form of fresh fruit residue feed, fermented fruit residue feed, silage fruit residue feed and dry fruit residue. In addition to being a good feed resource, fruit residue can also be used to extract pectin and produce dietary fiber, jam, alcohol, citric acid, oligosaccharides and enzymes. Moreover, the fermented pomace can have better palatability, higher nutritional value and improve the digestive efficiency of feed . The crude protein content in the Pomace Fermented by the strain was about 2.5 times higher than that of the original one . Fruit pomace can be used as feed material in various forms, all of which have the advantages of high nutrition.
The most simple method of using fruit residue in fresh fruit residue feed can not achieve the best absorption and utilization of nutrient components of fruit residue. Because of its simplicity, it can also be used by many people. The conventional nutrient components of fresh apple pomace vary according to the variety, origin, season and processing technology of apple juice enterprises. Suzukin (1996) reported that the moisture content, crude protein, crude fiber, crude fat and crude ash content of fresh apple pomace were 85%, 2.5%, 6.3%, 2.8% and 1.8%, respectively. It was also reported that fresh apple pomace contained 80% water, 0.9% crude protein, 5% crude fiber, 0.05% calcium, 0.02% phosphorus and 0.8% potassium, respectively. 1%. The content of trace elements in fresh fruit residue is higher. Yang Fu et al. (2000) determined the contents of copper, iron, zinc, manganese, selenium, magnesium, potassium and sodium in apple pomace, which were 11.8 mg/kg, 158 mg/kg, 15.4 mg/kg, 14 mg/kg, 0.08 mg/kg, 0.07%, 0.75% and 0.02%, respectively. At the same time, fresh apple pomace is rich in amino acids. Li Caifeng et al. (2001) analyzed the composition of the pomace samples of Qinguan apple, which are mainly made from the pomace of Qinguan apple processing, mixed with a small number of Fuji, Hongxing, Marshal and other varieties. The content of amino acids in the pomace after one press and the pomace after two press was determined. The apple pomace after one press was based on dry matter and after one press. Fruit residue contains aspartic acid 0.53%, serine 0.24%, glutamic acid 0.74%, proline 0.24%, glycine 0.27%, alanine 0.24%, lysine 0.27%, methionine 0.04%, isoleucine 0.28%, phenylalanine 0.22%, arginine 0.29%, valine 0.28%, leucine 0.28%.