High-protein orange pomace fermented feed and its preparation technology

Abstract

The invention provides a technique for preparing a feed by fermenting pomace with Lactobacillus acidophilus, which comprises the steps of strain propagation and pomace fermentation. The strain propagation process comprises the following steps: activating Lactobacillus acidophilus freeze-dried powder, culturing, carrying out liquid culture, and carrying out inoculation amplification culture to obtain the Lactobacillus acidophilus strain. The pomace fermentation process comprises the following steps: removing impurities from fresh orange pomace, and adding into a mixing device; adding the Lactobacillus acidophilus strain and urea, and mixing for 5-10 minutes until the pomace, strain and urea are mixed uniformly; and filling the mixture of pomace, strain and urea into a packaging bag, and fermenting at 15-30 DEG C in a closed state for 7-10 days to obtain the high-protein orange pomace fermented feed. The urea is added into the orange pomace in advance and combined with the pectin component in the pomace to enhance the digestibility of crude proteins, thereby enhancing the protein content in the fermented pomace feed and satisfying the demands for proteins in the livestock / fowl growth process.

Description

technical field [0001] The invention belongs to the field of feed production, and in particular relates to a pomace fermented feed, in particular to a high-protein orange dregs fermented feed and a preparation process thereof. Background technique [0002] Citrus is the world's largest fruit, and its distribution and production rank first among all kinds of fruits in the world. China's citrus planting area and production rank first in the world. Orange pomace is the leftovers after the citrus fruit is processed to make juice or canned, accounting for about 25% to 50% of the weight of the fruit. In recent years, non-frozen concentrate (NFC) juice has grown in popularity, and with it, a lot of orange pomace has been produced. Orange pomace is rich in flavonoids, limonene, Vc, carotenoids and other physiologically active components, as well as a large amount of pectin, cellulose, soluble sugar and mineral elements. In China, at present, it is basically disposed of in landfill...

AI Technical Summary

Problems solved by technology

However, there are the following problems in directly using orange pomace as feed: (1) due to the high moisture content of orange pomace and many nitrogen-free extracts, it is easy to deteriorate and difficult to store; (2) orange pomace has a certain bitter taste, which limits its use. The amount of direct feeding; (3) drying and drying will lose a lot of nutrients such as vitamins, the cost of artificial drying is high, natural drying is labor-intensive and time-consuming, and it is easy to be contaminated by germs

However, pure fermentation technology cannot overcome the high moisture content of orange meal itself, and some harmful bacteria, especially mycotoxins in the raw material of orange meal can cause lesions, so it is not suitable for use as feed

Moreover, orange pomace belongs to fruit pomace, and its protein content is low, so it is difficult to meet the protein demand of livestock and poultry growth.

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