JPH05246417A - Biodegradable molding and production thereof - Google Patents

Biodegradable molding and production thereof

Info

Publication number
JPH05246417A
JPH05246417A JP4690892A JP4690892A JPH05246417A JP H05246417 A JPH05246417 A JP H05246417A JP 4690892 A JP4690892 A JP 4690892A JP 4690892 A JP4690892 A JP 4690892A JP H05246417 A JPH05246417 A JP H05246417A
Authority
JP
Japan
Prior art keywords
water
molding
protein
molded product
biodegradable molded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4690892A
Other languages
Japanese (ja)
Inventor
Sadamasa Ando
貞正 安藤
Taizo Karasawa
泰三 唐沢
Yuka Tanaka
由佳 田中
Takayuki Kurisaka
貴之 栗坂
Shinji Tanaka
真二 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissei Co Ltd
Original Assignee
Nissei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissei Co Ltd filed Critical Nissei Co Ltd
Priority to JP4690892A priority Critical patent/JPH05246417A/en
Publication of JPH05246417A publication Critical patent/JPH05246417A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Abstract

PURPOSE:To make a molding adaptable for a disposable food container through its improved water resistance as well as the retained biodegradation ability by a method wherein protein or the material containing the same is shaped under pressure in the presence of water and the resulting molding is then dried. CONSTITUTION:A biodegradable molding is formed of protein or the material containing the same which is shaped under pressure in the presence of water and then dried. Such a molding can be easily biodegraded by using bacteria or microorganisms in the soil. Also, this molding has such a high water resistant property that it is hardly liable to water leakage, deformation and dissolution of its inner surface, etc. Therefore, the molding is adaptable for use as a disposable food container such as precooked noodle cup. In particular, fermented soybeans are produced by a through process wherein the boiled soybeans inoculated with Bacillus natto are placed in the molding and then allowed to ferment as such.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、たんぱく質を主成分と
して成形され、土中の細菌や、微生物等によって分解可
能であると共に、例えば即席カップ麺、スープ、納豆等
の食品容器として使用可能な生分解性成形物及びその製
造方法に関するものである。INDUSTRIAL APPLICABILITY The present invention is formed by using a protein as a main component and can be decomposed by bacteria and microorganisms in the soil and can be used as a food container for instant cup noodles, soups, natto, etc. The present invention relates to a biodegradable molded product and a method for producing the same.

【０００２】[0002]

【従来の技術】容器、包装材等の成形物素材として、広
く一般にプラスチック類が使用されている。しかしなが
ら、これらプラスチック類は生分解性が低い事、また、
焼却処理の際に有害ガスを発する事など、埋めたて、焼
却等の廃棄処分に大きな難点を有し、重大な社会問題と
なっている。2. Description of the Related Art Plastics are widely used as materials for molded articles such as containers and packaging materials. However, these plastics have low biodegradability, and
It has become a serious social problem because it has a great difficulty in disposal such as burying and incineration because it emits harmful gas during incineration.

【０００３】そこで、従来では、たんぱく質、あるいは
たんぱく質を含む原料を水またはグリセリン等の結着剤
と混合して加圧成形する成形物が提案されている。この
ような生分解性成形物は、製造時の作業性に優れ、かつ
均一な組織を有すると共に、土中の細菌や微生物等によ
り容易に分解されるので、廃棄処分も簡単で問題がな
く、また食品容器としても安全性の高いものである。Therefore, conventionally, a molded product has been proposed in which a protein or a raw material containing a protein is mixed with water or a binder such as glycerin and pressure-molded. Such a biodegradable molded article has excellent workability during manufacturing, and has a uniform structure, and is easily decomposed by bacteria and microorganisms in the soil, so that disposal is easy and there is no problem. It is also a highly safe food container.

【０００４】また、特公平２−４５８８５号公報には、
穀類の顆粒を加圧加熱して使いすて用の食器を成形する
方法が開示されている。この方法で作製された使いすて
用の食器は、土中のバクテリア等により分解されるた
め、上記の社会問題を解消するとされている。また、特
公昭６２−３０７４６号公報には、米粉に納豆粉末を添
加して焼成することにより成形される容器が開示されて
いる。この容器は、納豆の醗酵過程における環境に耐え
得るため、容器内で納豆の製造工程を一貫して実施でき
るとされている。In Japanese Patent Publication No. 2-45885,
A method is disclosed in which granules of cereals are heated under pressure to form tableware for use. The tableware for single use produced by this method is said to solve the above social problems because it is decomposed by bacteria in the soil. Further, Japanese Patent Publication No. 62-30746 discloses a container formed by adding natto powder to rice flour and baking the mixture. Since this container can withstand the environment in the fermentation process of natto, it is said that the manufacturing process of natto can be carried out consistently in the container.

【０００５】[0005]

【発明が解決しようとする課題】ところが、上記たんぱ
く質を主原料として成形された生分解性成形物は、耐水
性に乏しいという欠点がある。したがって、廃棄処理が
容易であるという利点があるにもかかわらず、例えば、
即席カップ麺、スープ等水分量の多い食品の容器には、
食品中の水分等により変形、モレ等が生じ易いため使用
不可能であるという問題を有している。また、納豆の容
器として用いた場合にも、納豆の醗酵過程および保存中
の湿度等に耐えることができず、容器の変形、水漏れ等
が生じるという虞れがある。However, the biodegradable molded product formed by using the above protein as a main raw material has a drawback that it is poor in water resistance. Therefore, despite the advantage of easy disposal, for example,
For instant cup noodles, soup and other food containers with high water content,
It has a problem that it cannot be used because it is liable to be deformed or leaked due to moisture in food. Also, when used as a container for natto, it may not be able to withstand the fermentation process of natto and the humidity during storage, etc., which may cause deformation of the container, water leakage and the like.

【０００６】また、前記特公平２−４５８８５号公報お
よび特公昭６２−３０７４６号公報に開示されているい
ずれの容器についても、十分な耐水性を有しておらず、
容器内に水分や、納豆を入れて長時間放置すると、内表
面が徐々に溶解し、べたつき等が生じるという問題を有
している。Further, none of the containers disclosed in JP-B-2-45885 and JP-B-62-30746 have sufficient water resistance,
When water or natto is placed in a container and left for a long time, the inner surface gradually dissolves, causing stickiness.

【０００７】[0007]

【課題を解決するための手段】請求項１の発明に係る生
分解性成形物は、上記課題を解決するために、たんぱく
質または、たんぱく質を含む原料が、水分存在下で加圧
して成形され、乾燥されたものから成ることを特徴とし
ている。In order to solve the above-mentioned problems, a biodegradable molded article according to the invention of claim 1 is formed by pressurizing a protein or a raw material containing a protein in the presence of water. It is characterized by consisting of dried ones.

【０００８】また、請求項２の発明に係る生分解性成形
物の製造方法は、上記課題を解決するために、たんぱく
質または、たんぱく質を含む原料を水分存在下で加圧し
て成形し、加圧成形後に乾燥させることを特徴としてい
る。Further, in order to solve the above-mentioned problems, the method for producing a biodegradable molded article according to the invention of claim 2 pressurizes a protein or a raw material containing a protein in the presence of water, and presses it. It is characterized by being dried after molding.

【０００９】尚、上記たんぱく質としては、例えば大豆
たんぱく質、卵白、あるいはとうもろこしたんぱく質、
グルテン、乳たんぱく質等が挙げられる。また、たんぱ
く質を含む原料として、それらたんぱくを含む大豆粉、
小麦粉、乳製品、あるいはそれらの混合物等が挙げられ
る。Examples of the above proteins include soybean protein, egg white, or corn protein,
Examples include gluten and milk protein. In addition, as a raw material containing proteins, soybean flour containing those proteins,
Examples include wheat flour, dairy products, and mixtures thereof.

【００１０】[0010]

【作用】請求項１の構成によれば、たんぱく質または、
たんぱく質を含む原料が水分存在下で加圧成形され、乾
燥されたものから成る生分解性成形物は、十分な耐水性
を有しており、例えば水分量の多い食品等の容器として
も、水分の漏れ、容器の変形、内表面の溶解等を生じる
ことなく、快適に使用することができる。According to the constitution of claim 1, the protein or
A biodegradable molded product composed of a material containing a protein that is pressure-molded in the presence of water and dried has sufficient water resistance, and can be used as a container for foods with a large water content, for example. It can be comfortably used without causing leakage, deformation of the container, dissolution of the inner surface, and the like.

【００１１】また、請求項２の方法によれば、たんぱく
質または、たんぱく質を含む原料を水分存在下で加圧成
形した後、乾燥させることにより前記の生分解性成形物
が作製される。したがって、乾燥工程を施すことによ
り、生分解性成形物の耐水性を向上させることができ、
例えば水分量の多い食品等の容器としても、水分の漏
れ、容器の変形、内表面の溶解等を生じることなく、快
適に使用することができる。According to the second aspect of the present invention, the biodegradable molded article is produced by pressing the protein or the raw material containing the protein under pressure in the presence of water and then drying it. Therefore, by applying a drying step, it is possible to improve the water resistance of the biodegradable molded article,
For example, even a container of food or the like having a large amount of water can be comfortably used without leakage of water, deformation of the container, dissolution of the inner surface, and the like.

【００１２】これらたんぱく質または、たんぱく質を含
む原料を水分存在下で加圧成形し、乾燥させて得られた
生分解性成形物は、十分な耐水性を有しており、水分の
漏れ、成形物の変形、内表面の溶解等を生じ難いため、
例えばこの中に納豆菌を接種した煮大豆を入れて醗酵さ
せることにより、納豆を一貫して製造することができ
る。A biodegradable molded product obtained by press-molding these proteins or a raw material containing a protein in the presence of water and drying the product has sufficient water resistance, water leakage, and molded products. It is difficult to cause deformation of the
For example, natto can be consistently produced by adding boiled soybeans inoculated with natto bacterium to this and fermenting.

【００１３】[0013]

【実施例】以下、本発明の実施例を示す。EXAMPLES Examples of the present invention will be shown below.

【００１４】〔実施例１〕大豆たんぱく質１００部と、
水５０部とをミキサーにて２分間混合し、得られた混合
物を予め１１０℃に加温した金型に所定量計量して分注
した後、１００kg／cm2 荷重にて１分間加圧成形するこ
とににより、成形物を得た。そして、この成形物を金型
より取り出し、室温にて放冷した後、デシケータに入れ
て室温下、２４時間乾燥させることにより生分解性成形
物（Ａ）を作製した。[Example 1] 100 parts of soybean protein,
50 parts of water is mixed with a mixer for 2 minutes, the resulting mixture is weighed in a predetermined amount into a mold preheated to 110 ° C., dispensed, and then pressure-molded under a load of 100 kg / cm 2 for 1 minute. By doing so, a molded product was obtained. Then, this molded product was taken out from the mold, allowed to cool at room temperature, put in a desiccator and dried at room temperature for 24 hours to prepare a biodegradable molded product (A).

【００１５】上記のようにして作製された生分解性成形
物（Ａ）内に、水を７分目まで加えて室内に放置し、経
時変化による水分の漏れを観察した。観察結果を表１に
示した。Water was added to the biodegradable molded article (A) produced as described above until the 7th minute, and the mixture was allowed to stand in a room, and leakage of water due to aging was observed. The observation results are shown in Table 1.

【００１６】〔比較例１〕上記実施例１において、加圧
成形後の乾燥処理を行わないこと以外は、実施例１と同
様の原料組成および製造条件にて生分解性成形物（Ｂ）
を作製した。この生分解性成形物（Ｂ）内に７分目まで
水を入れて室内に放置しておき、経時変化による水の漏
れを観察した。観察結果を表１に併せて示した。Comparative Example 1 A biodegradable molded product (B) having the same raw material composition and production conditions as in Example 1 except that the drying treatment after pressure molding is not carried out in the above-mentioned Example 1.
Was produced. Water was placed in the biodegradable molded product (B) until the 7th minute and left in the room, and water leakage due to aging was observed. The observation results are also shown in Table 1.

【００１７】[0017]

【表１】 [Table 1]

【００１８】表１から明らかなように、比較例１におい
て乾燥処理を行わずに作製された生分解性成形物（Ｂ）
は、室内放置３時間経過後から徐々に底部からの水分の
漏れが始まり、以後この漏れが続いた。しかしながら、
実施例１において加圧成形後に乾燥処理を行って作製さ
れた生分解性成形物（Ａ）は、室内放置２４時間経過後
に若干の水分の漏れが観察され始めたが、２４時間以内
には、水分の漏れは観察されず、乾燥処理を行わなかっ
た比較例１の生分解性成形物（Ｂ）に比べて良好な耐水
性を示した。As is clear from Table 1, the biodegradable molded product (B) produced in Comparative Example 1 without drying treatment.
The water gradually started to leak from the bottom after 3 hours of standing indoors, and this leakage continued thereafter. However,
In the biodegradable molded product (A) produced by performing the drying treatment after pressure molding in Example 1, some leakage of water started to be observed after 24 hours of standing indoors, but within 24 hours, No leakage of water was observed, and good water resistance was exhibited as compared with the biodegradable molded product (B) of Comparative Example 1 which was not dried.

【００１９】このように、加圧成形後に乾燥処理を実施
することにより、生分解性成形物の耐水性が向上するこ
とが分かった。したがって、例えば即席カップ麺やスー
プ等の水分量の多い食品の容器として上記成形物を用い
た場合でも、長時間に亘り耐水性を保持することができ
るので、水分の漏れ、成形物の変形等が生じることなく
快適に使用することができる。また、この成形物は、土
中の細菌、微生物等により容易に分解されるので、使用
後の廃棄処理も簡単で、従来用いられている発泡スチロ
ール等のプラスチック系の容器のように、その廃棄処理
が環境問題となることもない。As described above, it was found that the water resistance of the biodegradable molded article was improved by performing the drying treatment after the pressure molding. Therefore, for example, even when the molded product is used as a container for food with a large amount of water such as instant cup noodles and soup, it is possible to maintain water resistance for a long time, so that water leakage, deformation of the molded product, etc. It can be used comfortably without causing. In addition, since this molded product is easily decomposed by bacteria, microorganisms, etc. in the soil, it is easy to dispose of it after use, like the conventional plastic containers such as Styrofoam, which can be disposed of. Does not become an environmental problem.

【００２０】〔実施例２〕とうもろこしたんぱく質１０
０部、水５０部、およびグリセリン１０部をミキサーで
２分間混合し、得られた混合物を予め１４０℃に加温し
た金型に所定量計量して分注した後、１００kg／cm2 荷
重にて１分間加圧成形した。得られた成形物を金型より
取り出し、室温にて放冷した後、デシケータに入れて室
温下、２４時間乾燥させることにより生分解性成形物
（Ｃ）を得た。[Example 2] Corn protein 10
0 parts, 50 parts of water, and 10 parts of glycerin were mixed with a mixer for 2 minutes, and the resulting mixture was weighed in a predetermined amount into a mold preheated to 140 ° C. and dispensed to a load of 100 kg / cm 2 And pressure molded for 1 minute. The obtained molded product was taken out of the mold, allowed to cool at room temperature, put in a desiccator and dried at room temperature for 24 hours to obtain a biodegradable molded product (C).

【００２１】次に、煮大豆に納豆菌希釈液を所定量接種
し、上記のようにして得られた生分解性成形物（Ｃ）に
５０ｇずつ計量して充填した。そして、この生分解性成
形物（Ｃ）に蓋をして醗酵室に入れ、１５時間〜１９時
間醗酵させた後、生分解性成形物（Ｃ）の変化および納
豆の状態を観察した。また、上記醗酵終了後、納豆の入
ったこの生分解性成形物（Ｃ）を５℃の冷蔵庫に移して
７日間保存し、保存７日後の生分解性成形物（Ｃ）およ
び納豆の状態を観察した。Next, boiled soybeans were inoculated with a predetermined amount of a diluted liquid of Bacillus natto, and the biodegradable molded product (C) obtained as described above was weighed and filled in an amount of 50 g each. Then, the biodegradable molded product (C) was capped, placed in a fermentation chamber and fermented for 15 to 19 hours, and then the change of the biodegradable molded product (C) and the state of natto were observed. In addition, after the fermentation is completed, the biodegradable molded product (C) containing natto is transferred to a refrigerator at 5 ° C and stored for 7 days, and the state of the biodegradable molded product (C) and natto after storage for 7 days is maintained. I observed.

【００２２】醗酵終了後、生分解性成形物（Ｃ）内の納
豆は、糸引き性が良好であり、生分解性成形物（Ｃ）に
ついても変形、くずれ等が生じておらず、水分の漏れ、
成形物内表面の溶解によるべたつき等も観察されなかっ
た。また、冷蔵庫内での保存７日後においても、納豆の
性状は良好で、生分解性成形物（Ｃ）に変形、割れ等は
生じておらず、水分の漏れ、成形物内表面のべたつき等
も観察されなかった。After the fermentation was completed, the natto in the biodegradable molded product (C) had a good stringing property, and the biodegradable molded product (C) was not deformed or collapsed. leakage,
No stickiness due to melting of the inner surface of the molded product was observed. In addition, even after 7 days storage in the refrigerator, the properties of natto are good, the biodegradable molded product (C) has no deformation, cracks, etc. Not observed.

【００２３】以上のように、とうもろこしたんぱく質を
原料として、水分存在下で加圧成形して得られた成形物
をさらに乾燥させることにより作製された生分解性成形
物は、耐水性に優れたものであり、納豆の醗酵過程およ
び醗酵後の保存過程における環境に十分耐えうるもので
あった。したがって、この生分解性成形物内に、納豆菌
を接種した煮大豆を盛り込み、醗酵させることにより、
糸引き性の良好な納豆を一貫して製造することが可能に
なる。また、本実施例の生分解性成形物（Ｃ）も、上記
実施例１の生分解性成形物（Ａ）と同様に、土中の細
菌、微生物等より容易に分解されるので、容器が不要に
なった際には、土中に埋めるだけで処分でき、廃棄処理
に問題もない。As described above, the biodegradable molded article produced by further drying the molded article obtained by pressure molding in the presence of water using corn protein as a raw material has excellent water resistance. It was able to withstand the environment during the fermentation process of natto and the storage process after fermentation. Therefore, in this biodegradable molded product, by adding boiled soybeans inoculated with Bacillus natto and fermenting it,
It is possible to consistently manufacture natto with good stringiness. Further, the biodegradable molded product (C) of the present example is also easily decomposed by bacteria, microorganisms and the like in the soil, like the biodegradable molded product (A) of the above-mentioned Example 1, so that the container is When it is no longer needed, it can be disposed of by simply burying it in the soil, and there is no problem in disposal.

【００２４】尚、本発明は、上記実施例１および実施例
２に限定されるものでなく、本発明の範囲内で種々の変
更が可能である。例えば、上記実施例１ではたんぱく質
として大豆たんぱく質を、また、実施例２ではとうもろ
こしたんぱく質を用いて生分解性成形物を作製したが、
たんぱく質の種類としては、これらに限定されるもので
はなく、例えば卵白や、他のたんぱく質、あるいはそれ
らを含む原料等を用いた場合でも、優れた耐水性を有す
る生分解性成形物を提供することが可能である。The present invention is not limited to the above-described first and second embodiments, and various modifications can be made within the scope of the present invention. For example, a biodegradable molded article was prepared using soybean protein as the protein in Example 1 and corn protein in Example 2;
Kinds of protein are not limited to these, and for example, to provide a biodegradable molded product having excellent water resistance even when egg white, other proteins, or raw materials containing them are used. Is possible.

【００２５】また、生分解性成形物を作製する際の条件
において、例えば原料仕込み時の水分量は、１重量％〜
２００重量％の範囲にあることが望ましく、さらに成形
性等を考慮すると、１重量％〜１００重量％の範囲にあ
ることが好ましい。また、加圧成形する際の圧力は、金
型が密閉される圧力であれば良く、圧力を一定時間保持
しても、瞬間的な加圧を行っても差し支えない。加圧成
形に使用する金型の温度については、特に問わないが、
５０℃〜１６０℃に予め加温しておくことが好ましい。
加圧成形後に行う乾燥工程については、上記実施例１お
よび実施例２では、デシケータを使用したが、これに限
定されるものではなく、低湿度下に生分解性成形物を置
くことを意図する方法であれば、本発明に適用すること
ができる。尚、上記乾燥工程を行う際の加圧、あるいは
減圧等の圧力調整や、温度等の条件については、特に問
わない。Under the conditions for producing the biodegradable molded product, for example, the amount of water at the time of charging the raw materials is 1% by weight to
The content is preferably in the range of 200% by weight, and more preferably in the range of 1% by weight to 100% by weight in consideration of moldability and the like. Further, the pressure at the time of pressure molding may be any pressure as long as the mold is hermetically closed, and the pressure may be maintained for a certain period of time or instantaneously pressurized. The temperature of the mold used for pressure molding is not particularly limited,
It is preferable to preheat to 50 ° C to 160 ° C.
Regarding the drying step performed after pressure molding, the desiccator was used in Examples 1 and 2 above, but the present invention is not limited to this, and it is intended to place the biodegradable molded article under low humidity. Any method can be applied to the present invention. The pressure adjustment such as pressurization or depressurization and the conditions such as temperature at the time of performing the drying step are not particularly limited.

【００２６】上記実施例２では、とうもろこしたんぱく
質に、副原料としてグリセリンを混合し、生分解性成形
物を作製したが、このように、たんぱく質、あるいはた
んぱく質を含む原料に副原料としての澱粉、糖類、油脂
類、増粘多糖類、穀物粉、セルロース、可塑剤、乳化
剤、不溶性鉱物物質、あるいはこれらの混合物等を添加
した場合でも、生分解性成形物を作製することが可能で
ある。In the above-mentioned Example 2, corn protein was mixed with glycerin as an auxiliary material to prepare a biodegradable molded article. It is possible to produce a biodegradable molded product even when oils, fats, thickening polysaccharides, grain flour, cellulose, plasticizers, emulsifiers, insoluble mineral substances, or mixtures thereof are added.

【００２７】また、本発明の生分解性成形物は、上記し
たように、即席カップ麺、スープ、あるいは納豆等の飲
食用の容器としてだけでなく、包装用容器、一般小型容
器等あらゆる分野において使用可能である。As described above, the biodegradable molded product of the present invention is not only used as a container for eating and drinking instant cup noodles, soup, natto, etc., but also in various fields such as packaging containers and general small containers. It can be used.

【００２８】[0028]

【発明の効果】請求項１の発明に係る生分解性成形物
は、以上のように、たんぱく質または、たんぱく質を含
む原料が、水分存在下で加圧して成形され、乾燥された
ものからなる構成である。As described above, the biodegradable molded article according to the invention of claim 1 is composed of a protein or a raw material containing a protein, which is molded under pressure in the presence of water and dried. Is.

【００２９】それゆえ、生分解性成形物の耐水性が向上
し、例えば水分量の多い食品等の容器としても、水分の
漏れ、容器の変形、内表面の溶解等を生じることなく、
快適に使用することができるという効果を奏する。Therefore, the water resistance of the biodegradable molded article is improved, and, for example, even when used as a container for food or the like having a large amount of water, leakage of water, deformation of the container, dissolution of the inner surface, etc. do not occur.
The effect is that it can be used comfortably.

【００３０】また、請求項２の発明に係る生分解性成形
物の製造方法は、以上のように、たんぱく質または、た
んぱく質を含む原料を水分存在下で加圧して成形し、加
圧成形後に乾燥させるものである。As described above, the method for producing a biodegradable molded article according to the invention of claim 2 is as follows. The protein or the raw material containing the protein is pressed in the presence of water to be molded, and then dried after pressure molding. It is what makes them.

【００３１】それゆえ、生分解性成形物に十分な耐水性
を付与することができ、例えば水分量の多い食品等の容
器としても、水分の漏れ、容器の変形、内表面の溶解等
を生じることなく、快適に使用することができるという
効果を奏する。Therefore, sufficient water resistance can be imparted to the biodegradable molded product, and, for example, even in the case of a food container having a large amount of water, leakage of water, deformation of the container, dissolution of the inner surface, etc. occur. The effect that it can be used comfortably without

【００３２】また、その一例として、これらたんぱく質
または、たんぱく質を含む原料を水分存在下で加圧成形
し、乾燥させることにより得られた生分解性成形物に、
納豆菌を接種した煮大豆を入れて醗酵させることによ
り、納豆を煮大豆の植菌、盛り込みから一貫して製造す
ることができるという効果を奏する。Further, as an example thereof, a biodegradable molded product obtained by press-molding these proteins or a raw material containing the proteins in the presence of water and drying them,
By adding and fermenting boiled soybeans inoculated with natto bacterium, it is possible to produce natto consistently from inoculation and inclusion of boiled soybeans.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】たんぱく質または、たんぱく質を含む原料
が、水分存在下で加圧して成形され、乾燥されたものか
ら成る生分解性成形物。1. A biodegradable molded article comprising a protein or a raw material containing a protein, which is molded by being pressed in the presence of water and dried. 【請求項２】たんぱく質または、たんぱく質を含む原料
を水分存在下で加圧して成形し、加圧成形後に乾燥させ
ることを特徴とする生分解性成形物の製造方法。2. A method for producing a biodegradable molded article, which comprises molding a protein or a raw material containing a protein under pressure in the presence of water, molding the mixture, and then drying the mixture under pressure.
JP4690892A 1992-03-04 1992-03-04 Biodegradable molding and production thereof Pending JPH05246417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4690892A JPH05246417A (en) 1992-03-04 1992-03-04 Biodegradable molding and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4690892A JPH05246417A (en) 1992-03-04 1992-03-04 Biodegradable molding and production thereof

Publications (1)

Publication Number Publication Date
JPH05246417A true JPH05246417A (en) 1993-09-24

Family

ID=12760462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4690892A Pending JPH05246417A (en) 1992-03-04 1992-03-04 Biodegradable molding and production thereof

Country Status (1)

Country Link
JP (1) JPH05246417A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035049A1 (en) * 1998-01-09 1999-07-15 Qing Zhu Disposable foodstuff and medicine container
CN1046473C (en) * 1996-03-26 1999-11-17 王建国 Method for producing disposable tableware and food package with fermented waste sludge and their use
WO2000027222A1 (en) * 1998-11-05 2000-05-18 Ajinomoto Co., Inc. Method for classifying specific tissue of oilseeds or cereals and finely milled powders
US6479164B1 (en) 1996-02-05 2002-11-12 Biotec Biologische Naturverpackungen Gmbh & Co. Kg Method for preparing composite materials from renewable raw materials
USRE39339E1 (en) 1992-08-11 2006-10-17 E. Khashoggi Industries, Llc Compositions for manufacturing fiber-reinforced, starch-bound articles having a foamed cellular matrix
CN105385171A (en) * 2015-12-17 2016-03-09 哈尔滨工业大学 Packaging material using soybean hull as matrix and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE39339E1 (en) 1992-08-11 2006-10-17 E. Khashoggi Industries, Llc Compositions for manufacturing fiber-reinforced, starch-bound articles having a foamed cellular matrix
US6479164B1 (en) 1996-02-05 2002-11-12 Biotec Biologische Naturverpackungen Gmbh & Co. Kg Method for preparing composite materials from renewable raw materials
CN1046473C (en) * 1996-03-26 1999-11-17 王建国 Method for producing disposable tableware and food package with fermented waste sludge and their use
WO1999035049A1 (en) * 1998-01-09 1999-07-15 Qing Zhu Disposable foodstuff and medicine container
WO2000027222A1 (en) * 1998-11-05 2000-05-18 Ajinomoto Co., Inc. Method for classifying specific tissue of oilseeds or cereals and finely milled powders
CN105385171A (en) * 2015-12-17 2016-03-09 哈尔滨工业大学 Packaging material using soybean hull as matrix and preparation method thereof

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