DDC Tech Day | Exploring and Applying Fruit Residues

Pick    To: China is a global leader in fruit cultivation, processing, and consumption, and fruit pulp residues are exceptionally rich in nutrients. ,  Rich in nutrients such as crude protein, crude fat, crude fiber, polyphenols, and total flavonoids. Fruit pulp, a major waste product of the fruit industry, currently remains largely underutilized in the production of high-value-added products. However, its application as animal feed or an ingredient in feed additives has already achieved significant success. This article reviews several applications of fruit pulp in animal husbandry and, drawing on the characteristics of feed additives, explores the promising potential of fruit pulp as a key component in feed formulations.

Keywords: Feed, fruit pulp, additives

Fruit pulp, as a feed ingredient, is primarily fed in the form of fresh fruit pulp feed, fermented fruit pulp feed, silage fruit pulp feed, and dried fruit pulp. In addition to serving as an excellent feed resource, fruit pulp can also be used to extract pectin, producing dietary fiber, jams, alcohol, citric acid, oligosaccharides, and enzyme preparations, among other valuable products. ^[1] Moreover, the fermented fruit pulp exhibits improved palatability, higher nutritional value, and enhanced digestibility and utilization of the feed. ^[2] Through fermentation with microbial strains, the crude protein content of the fruit pulp residue is increased compared to its original level. 2.5 About twice ^[3] Fruit pulp can be used as a feed ingredient in various forms, all of which offer the advantage of high nutritional value.

The simplest method for utilizing fresh fruit pulp as animal feed, though this approach doesn't maximize the absorption and utilization of the pulp's nutritional components. Nevertheless, its simplicity makes it accessible to many people. The typical nutritional profile of fresh apple pulp varies depending on the apple variety, growing region, production season, and the processing techniques employed by juice manufacturers. Suzukin (1996) Reports indicate that fresh apple pomace contains moisture, crude protein, crude fiber, crude fat, and crude ash at the following levels: 85%、 2.5% 、 6.3% 、 2.8% And 1.8% ; Reports also indicate that fresh fruit pulp contains water 80% , Crude Protein 0.9% , Crude Fiber 5% Calcium 0.05% Phosphorus 0.02% Potassium 0.1% Fresh fruit pulp has a relatively high content of trace elements. Yang Fuyou and others (2000 Year ) The contents of copper, iron, zinc, manganese, selenium, magnesium, potassium, and sodium in apple pomace were determined to be: 11.8mg/kg、158mg/kg、15.4mg/kg、14mg/kg、0.08mg/kg、 0.07% 、 0.75% 、 0.02% Meanwhile, fresh apple pomace is rich in amino acids, according to Li Caifeng and others. (2001) A compositional analysis was conducted on pomace samples primarily derived from Qin Guan apples, mixed with small amounts of pomace from varieties such as Fuji, Hongxing, and Yuan Shuai. The levels of various amino acids in apple pomace obtained after one-time pressing and after second-time pressing were measured, based on dry matter. Notably, the apple pomace from the first press contained 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