JPS599145B2 - How to treat tangerine peel, etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for treating tangerine peel, etc.

Traditionally, tangerine peels and the like are made mostly of plant fibers and lack nutritional value if left as is.Also, they contain too much moisture to be fermented as is, so it is necessary to dry them to a certain extent before fermentation, which is a hassle. Because of this, it has been difficult to use it effectively as feed, etc.

In this invention, calcium salts are added to tangerine peels for the purpose of dehydration to form calactose calcium, which is then pressurized and dehydrated, and the water content is adjusted to about 60 to 70% by weight, and necessary nutritional materials are added to this dehydrated residue. The purpose of the present invention is to provide a method for treating tangerine peels, etc., which is fermented and dried using the fermentation heat, and the generated gas neutralizes slaked lime to turn it into calcium carbonate, which is useful as an auxiliary feed.

To explain in detail the embodiments of this invention, first, in the case of quicklime, about 1 to 2% by weight is added to the tangerine peel, squeezed residue, etc. that are used to make juice etc., and in the case of slaked lime, the weight ratio is and add about 4%.

In this state, tangerine peels etc. become alkaline, and in the case of quicklime in particular, water absorption during the process of turning into slaked lime causes up to 20%
After dehydration, the total volume becomes about one-third of the volume.

Next, pressure dehydration is carried out in a dehydrator at about 4 atm to reduce the water content to about 60-70%, and the dehydrated tangerine peels, etc., that is, the dehydrated lees, are fermented.

When fermenting the dehydrated lees, nutritional materials such as rice bran, oil lees, and bran, which contain a high percentage of crude protein and crude fat, are added to the dehydrated lees to form a mixture, and aerobic fermentation is performed using aerobic microorganisms. Ferment and dry at a temperature of about 90°C to 90°C.

Due to the fermentation heat generated by such fermentation, the dehydrated lees and nutritional materials containing about 60 to 70% water can be further dried by evaporating the water content from the water.

The conditions for such fermentation are that a mixture of dehydrated residue with quicklime adhering to it mixed with nutritional materials is placed in a fermenter, and air is supplied from the bottom of the fermenter to ferment and dry for 3 to 4 days. be.

The dehydrated lees dried in this way can be used as feed, and the CaO added at the beginning (moisture reduces the carbon
a (OH) 2 ) or Ca (
OH)2 is neutralized by carbon dioxide gas (CO2) generated during fermentation of dehydrated residue and nutritional materials, and becomes calcium carbonate (CaCO3).

Furthermore, the blending amounts of raw materials in the treatment method of this example will be specifically explained as follows.

In other words, for 100 kg of tangerine peel, 2 kg (approximately 35 mol) of quicklime and 4 kg (approximately 35 mol) of slaked lime are required.
If you add 20 kg of rice bran, 10 ky of oil cake, and 20 kg of bran, totaling 50 ky of nutritional materials, about 5 mol of 002 from the tangerine peel will be produced during fermentation.
However, approximately 70 mo1 of CO2 is generated from the nutritional materials, and this CO2 reacts with quicklime and slaked lime in equal moles, and almost all of the quicklime and slaked lime become calcium carbonate.

The embodiment of the present invention is constructed as described above, and by simply adding quicklime or slaked lime to the tangerine peel, a certain amount of water is absorbed and the subsequent dehydration process can be facilitated.

In addition, this quicklime (converted to Ca (OH)2 by moisture) or slaked lime is neutralized by carbon dioxide gas and becomes calcium carbonate, which has traditionally been used as a useful supplementary feed. This eliminates the need to add additional supplementary feed.

In addition, the fibrous mandarin peel is mixed with nutritional materials such as rice bran, oil cake, and bran that contain a high percentage of crude protein and crude fat, making it a high-quality product that is highly nutritious and easy to defecate. Feed can be provided.

The same amount of this feed and a commercially available feed were given to Japanese Black calves (250 kg in weight) after weaning at 7 to 8 months of age, and the weight gain was measured over a period of 12 months.The results are as follows. Ta.

That is, the feed of the present invention had better efficiency than commercially available feeds.

In addition, CO2 neutralizes quicklime and slaked lime, which are strong alkalis, so the feed does not contain strong alkalis and does not neutralize the stomach acid of livestock that eat it, so it does not cause indigestion. .

With this invention, this dehydration can be done to some extent by adding quicklime or slaked lime to the tangerine peel, so it is economical and does not require much effort, and the dehydrated tangerine peel contains crude protein and crude fat. Since a high percentage of nutritional materials are added and fermented, the quicklime or slaked lime becomes calcium carbonate, which is useful as an auxiliary feed, due to the carbon dioxide gas generated during fermentation, so there is no need to add any additional auxiliary feed, making it more economical. First, it has the effect of providing high-quality feed that is highly nutritious and easy to defecate.

Also, rapid weight gain of livestock can be achieved with the same amount of supply.

Claims (1)

[Claims] 1 Add quicklime or slaked lime to tangerine peels, dehydrate under pressure, make dehydrated lees with a water content of 60% to 70%, and prepare crude protein,
Nutritional materials such as rice bran, oil cake, and bran, which contain a high percentage of crude fat, are added to the dehydrated grains to form a mixture, and the mixture is subjected to aerobic fermentation using aerobic microorganisms to produce the dehydrated grains and nutritional materials. The mixture is dried using the fermentation heat of the mixture itself, and quicklime or slaked lime is neutralized with carbon dioxide gas generated from dehydrated lees and nutritional materials through the same fermentation to form calcium carbonate, which is then used as feed. Processing method.