JPS6159111B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a method for producing powder from date palm fruit, particularly its pulp. The date palm referred to in the present invention refers to Phoenix Dactylifera, which is mainly produced in Iraq. Date palm fruit has long been known to be highly nutritious, especially rich in minerals. However, the development of its processing and usage methods is insufficient. Fruit juice has only been put to practical use as a raw material for sauces, sauces, etc., and fruit pulp has even more limited applications and remains limited to use as fermentation materials and feed. In order to utilize date palm fruit, it is thought to be effective to grind it into powder and mix it into various foods, as is done with coconut palm fruit.
However, most of the non-aqueous components in coconut fruit (approximately
70%) is fat, so it can be made into powder simply by drying and grinding, but the majority (about 90%) of the non-aqueous components of date palm fruits are carbohydrates, and they are hygroscopic. Therefore, simply drying and pulverizing it into powder will cause it to clump again and cannot be made into powder. For this purpose, the fruit juice is separated and taken out, dried to form a bean paste, and then starch is added, dried, and crushed to form a powder (Japanese Patent Publication No. 1983-20312), or after drying, oil-based powder such as peanuts, etc. A method has been devised (Japanese Unexamined Patent Publication No. 56-99778) to grind it into powder along with other substances. All of these methods involve adding additives, which impair the unique flavor of dates, and are not economical enough. The inventor of the present invention focused on fruit pulp, which has rarely been used in the past, and analyzed its components, and found that the sugar content decreased as carbohydrates flowed into the fruit juice, contained fiber, and was extremely rich in minerals. I discovered that it is even better than fruit juice.
When this fruit pulp was dried and ground, they discovered that powder could be obtained without adding any additives, and the present invention was completed. The present invention involves a seed skin removal step in which water is added to date palm fruits and heated, and the seeds and epidermis are removed using a filtration device.After this, the fruit juice is further removed using a filtration device to obtain a fruit pulp with reduced sugar content. This method for producing date flour consists of a juice removal step and a milling step in which the pulp is dried and crushed into powder. In the seed skin removal process, date palm fruits are heated with water and steam using a regular steamer, etc., the seeds are removed using a filtration device with a pore size of about 5 mm, and then the seeds are filtered with a pore size of about 0.5 mm. Remove the epidermis using a device. Next, in the fruit juice removal process, a filtration device is
The juice is removed using several steps and the pulp is removed. The fruit juice removed here may be clear or puree containing a small amount of pulp components. Note that the process up to this juice removal step is the same as the conventional fruit juice or piure production process. In the next milling step, the fruit pulp taken out from the previous step, which still contains a lot of water, is dried and ground. Any method such as a hot air method or a reduced pressure method can be used for this drying. The pulverization is carried out by a mechanical method such as an impact method, and the final particle size may be arbitrarily selected depending on the intended use. The ingredients of the date flour thus produced are shown in the table below. This table also shows dates, fruit juice (concentrated), and plums (dried) for reference.

【table】

[Table] As you can see from the table above, date flour is extremely rich in minerals, especially calcium and iron. In addition, the sugar content of date flour decreases due to the sugar content flowing into the fruit juice, and it also contains fiber.
Even though no additives are added, the individual powders do not recombine and form a lump after being made into a single powder, and are stable as a powder for a long period of time. Of course, since it is a powder, it can be easily mixed into wheat flour, etc., and can be widely applied to various foods. Therefore, for example, it can be mixed into bread, cakes, etc.
It is also ideal for fortified foods and health foods. Next, examples of the present invention will be described. Example: Iraqi date palms were heated using a double-screw steamer, and the seeds were removed using a seed pulper with a 5 mm pore size filter. Remove the epidermis using a needle. Thereafter, filtration is performed three times using a spiral decanter, a desradiator, and a filter press to remove the fruit juice and take out the pulp. The work up to this point is the same as normal fruit juice production work. Next, the extracted pulp is arranged in blocks on a plate and dried with hot air at 80°C for 3 days using a hot air dryer. Thereafter, this pulp is coarsely crushed using a crusher and then finely crushed using an impact crusher to complete date palm powder.

Claims (1)

[Claims] 1 Seed skin removal step in which water is added to the date palm fruit and heated, and the seeds and epidermis are removed using a filtration device; after this, the fruit juice is further removed using a filtration device to obtain a fruit pulp with reduced sugar content. A method for manufacturing date flour, which consists of a step and a milling step in which the pulp is dried and crushed into powder.