JP4091581B2 - Pet food - Google Patents

Description

  The present invention relates to a pet food that prevents obesity and suppresses weight gain.

  Due to the pet boom, the number of pets is increasing, and accordingly, adult illnesses in humans such as pet obesity, diabetes, and liver diseases are increasing due to aging of pets, lack of exercise, overnutrition and the like. In addition, dogs and cats who become obese due to hormonal imbalance after contraceptive surgery are increasing.

Many pet foods for preventing such obesity and weight gain have been developed. For example, a pet food blended with an extract of bay leaf, which is an amylase inhibitor (Patent Document 1), a lipase inhibitor such as hesperidin (Patent Document 2), maitake powder and / or an extract of maitake (Patent Document 3), etc. Are known. Moreover, although it is not a technique restricted to pet food, there exists a technique of improving lipid metabolism by the flour containing high amylose (patent document 4).
JP 05-192092 A JP 09-187230 A Japanese Patent Laid-Open No. 08-38069 Japanese Patent Laid-Open No. 10-279487

  However, since these pet foods contain a special substance, there are problems such as a decrease in pet intake and a change in odor of stool. In addition, amylose is difficult to digest, so if it is contained in a high amount in pet food, the stool becomes soft and may cause inconvenience.

  An object of the present invention is to provide a pet food that is excellent in anti-obesity effect, does not deteriorate ingestibility, and does not affect the state of stool.

Therefore, the present inventors have studied to obtain a pet food having an excellent anti-obesity effect without using a chemically synthesized product or a special ingredient. As a result, if a combination of high amylose starch and animal and vegetable proteins is used, It has been found that a pet food having an excellent anti-obesity effect can be obtained without reducing the intake.
That is, the present invention provides a pet food containing a carbohydrate containing high amylose starch and an animal or vegetable protein.

  The pet food of the present invention is excellent in pet obesity prevention effect and weight gain suppression effect, and has good ingestion, so that it does not impair nutritional balance. In addition, pet stool conditions and odors have no change compared to normal food.

  The high amylose starch used in the pet food of the present invention is a starch having an amylose content of 40 to 99% by weight, and in particular, high amylose corn starch, glacier AC38, su2 corn and the like. As commercial products, high amylose corn starch amylomaize V (amylose content 50-60% by weight), amylomaise VI (amylose content 60-70% by weight), amylomaize VII (amylose content 70-80% by weight) or more Japanese food High amylose corn starch, such as those manufactured by Processing Co., Ltd., and Fibose (about 70%) manufactured by Nissho Chemical Co., Ltd.

  These high amylose starches are contained in carbohydrates in an amount of 3% by mass or more, further 3 to 30% by mass, particularly 3 to 20% by mass, from the viewpoint of economy, anti-obesity effect, ingestion and stool condition. preferable.

  Examples of carbohydrates other than high amylose starch include monosaccharides, oligosaccharides, polysaccharides, dietary fibers, and starches. Starches include corn starch, wheat starch, rice starch, potato starch, honeydew starch, tapioca starch and the like. Carbohydrates may be contained as cereals, and examples of cereals include wheat, barley, rye, mica, corn, rice, fin, awa, amaranth and quinoa. The carbohydrate is preferably contained in the pet food at 10 to 70% by mass, further 20 to 60% by mass, particularly 30 to 50% by mass.

  Examples of the animal protein used in the pet food of the present invention include milk proteins such as casein, but animal meat protein is preferred from the viewpoint of obesity prevention effect and ingestion. Such animal meat proteins include cattle, pigs, sheep, rabbits, kangaroos and other meats and beef, and by-products and processed products thereof; chickens, turkeys, quail and other bird meats and by-products and processed products thereof; Fish meat such as fish and white fish, and by-products and processed products thereof; rendering of the above-mentioned raw materials such as meat meal, meat bone meal, chicken meal, fish meal and the like. Of these, chicken and fish are particularly preferred from the viewpoint of preventing obesity. When mixing and using several meat protein, it is preferable to contain 30-100 mass% of chicken meat and / or fish meat in meat, especially 50-100 mass%.

  As the vegetable protein, soybean protein, wheat protein, wheat gluten, corn gluten and the like are preferable.

  It is preferable that the animal or vegetable protein is contained in the pet food of the present invention in an amount of 5 to 70% by mass, further 10 to 60% by mass, and particularly 15 to 40% by mass in terms of loss on drying.

  The pet food of the present invention preferably contains fats and oils in addition to the above components. As fats and oils, use of fats and oils containing diacylglycerol is particularly preferable from the viewpoint of obesity prevention effect. In addition to carbohydrates containing high amylose starches and animal and vegetable proteins, fats and fats containing diacylglycerol are further added to significantly improve the anti-obesity effect and improve intake. Particularly preferred as pet food.

  Examples of the fats and oils used here include safflower oil, olive oil, cottonseed oil, corn oil, rapeseed oil, soybean oil, palm oil, sunflower oil, linseed oil, sesame oil, lard, beef tallow, fish oil, milk fat and the like.

Examples of diacylglycerol include fats and oils containing a saturated or unsaturated fatty acid having 14 to 22 carbon atoms in the constituent fatty acid, such as safflower oil, olive oil, cottonseed oil, corn oil, rapeseed oil, soybean oil, palm oil, sunflower oil, Flaxseed oil, sesame oil; diacylglycerol contained in natural fats and oils of lard, beef tallow, fish oil, milk fat or their fractionated oil is used, but these natural fats and oils, randomized oils, Fatty oil selected from hardened oil and transesterified oil and glycerin are transesterified in the presence of alkali metal or alkaline earth metal hydroxide, or esterification of fatty acid mixture derived from these fats and oil and glycerin It can be obtained by reaction. At this time, two or more kinds of fats and oils may be mixed.
These reactions can also be carried out by a chemical reaction using an alkali catalyst or the like as described above, but the reaction is performed under mild conditions via an enzyme such as a 1,3-position selective lipase, It is preferable in terms of oxidation stability and palatability.

  The pet food of the present invention preferably contains 1 to 50% by weight, more preferably 3 to 40% by weight, particularly 5 to 30% by weight of fats and oils from the viewpoint of obesity prevention effect and ingestion. Further, it is preferable from the viewpoint of obesity prevention effect that the fats and oils contain 3% by mass or more, preferably 8 to 90% by mass, more preferably 8 to 60% by mass, and particularly 12 to 60% by mass of diacylglycerol.

  The pet food of the present invention may further contain a plant sterol. The plant sterol is preferably contained in the pet food in an amount of 0.1% by weight or more, particularly 0.5% by weight or more in terms of cholesterol lowering effect. Moreover, the upper limit of plant sterol content should just be the range of 0.1-30 weight%. Examples of plant sterols include free forms such as α-sitosterol, β-sitosterol, stigmasterol, campesterol, α-sitostanol, β-sitostanol, stigmasteranol, campestanol, and cycloartenol, and the like. And fatty acid esters, ferulic acid esters, cinnamic acid esters and the like.

The pet food of the present invention can further contain bran, potatoes, vegetables, vitamins, minerals and the like. As rice bran, rice bran, bran or the like is used, and as rice cake, soybean meal is used. Examples of vegetables include vegetable extracts. Examples of vitamins include A, B ₁ , B ₂ , D, E, niacin, pantothenic acid, carotene and the like, preferably 0.05 to 10% by mass. As minerals, calcium, phosphorus, sodium, potassium, iron, etc. are mentioned, and it is preferable to contain 0.05-10 mass%. In addition, a gelling agent, a shape-preserving agent, a pH adjuster, a seasoning, an antiseptic, a nutrition reinforcing agent and the like that are generally used in pet foods can also be contained. In addition, in the manufacturing process, it is preferable to manufacture while substituting with an inert gas such as nitrogen or degassing for the purpose of suppressing the oxidation of fats and oils because it is particularly effective in the heating step.

Example 1
When the test diet having the composition shown in Table 1 was fed freely to C57BL / 6J mice (food-dependent obesity / diabetes model animals) for 24 weeks, the change in body weight was measured. FIG. 1 shows changes in body weight when high amylose corn starch (Fibose) is used as test starch and when waxy corn, corn and tapioca starch are used.

  As shown in FIG. 1, the pet food containing 5% by mass of high amylose starch (12% by mass in the carbohydrate) in animal protein significantly suppressed the increase in body weight compared to the pet food using normal starch. .

Examples 2-4
A pet food having the formulation shown in Table 2 was prepared.

  The pet foods of Examples 2 to 4 have excellent weight gain inhibitory effects, good ingestibility, and good stool odor.

Examples 5 and 6 and Comparative Example 1
A pet food having the formulation shown in Table 3 was prepared. Oils and fats were extracted from the pet food and analyzed for the oil and fat composition (Table 4). Feeding tests were conducted by dividing 24 dogs obese using these pet foods into 3 groups so as not to be biased in weight, obesity, and age. Conditioning was first taken for 4 weeks, then divided into 3 groups, and each food was eaten for 5 weeks. The weight change at that time, the state of the stool, the state of the skin, and the hair gloss were evaluated according to the following criteria. The results are shown in FIGS.

In each evaluation, the conventional state was set to 3, and each was evaluated according to the following criteria. In addition, about the state of the stool, the odor, hardness, and quantity were further averaged and subjected to comprehensive evaluation.
[State of flight]
Smell of stool 5: Weak, 4: Slightly weak, 3: No change, 2: Slightly strong, 1: Strong hardness 5: Hard, 4: Slightly hard, 3: No change, 2: Slightly soft, 1: Soft Amount of bulky stool 5: Small, 4: Slightly small, 3: No change, 2: Slightly large, 1: Large [Overall evaluation of stool, skin condition, and shine]
5: Good, 4: Good, 3: No change, 2: Bad, 1: Bad

  The pet foods of Examples 5 and 6 had an excellent weight gain inhibitory effect, good ingestibility, and the stool condition was particularly good in hardness.

It is a figure which shows the body weight after raising a mouse | mouth with a test starch (5 mass%) addition pet food for 23 weeks. It is a figure which shows transition of the body weight at the time of feeding test pet food to a dog for 5 weeks. It is a figure which shows the sensory evaluation of the state of the stool of a pet, the state of a skin, and hair gloss when feeding test pet food to a dog for five weeks.

Claims (2)

A pet food containing a carbohydrate containing 3 to 30% by mass of a high amylose starch , an animal or vegetable protein , and an oil or fat containing 12 to 90% by mass of diacylglycerol in the oil or fat .   The pet food according to claim 1, wherein the animal protein is an animal meat protein.

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