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JPH0645634B2 - Soy isoflavone glycoside - Google Patents

Soy isoflavone glycoside

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Publication number
JPH0645634B2
JPH0645634B2 JP4897891A JP4897891A JPH0645634B2 JP H0645634 B2 JPH0645634 B2 JP H0645634B2 JP 4897891 A JP4897891 A JP 4897891A JP 4897891 A JP4897891 A JP 4897891A JP H0645634 B2 JPH0645634 B2 JP H0645634B2
Authority
JP
Japan
Prior art keywords
isoflavone
soybean
component
isolated
hypocotyl
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.)
Expired - Fee Related
Application number
JP4897891A
Other languages
Japanese (ja)
Other versions
JPH04266898A (en
Inventor
重光 工藤
一良 大久保
Original Assignee
阿保 定吉
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 阿保 定吉 filed Critical 阿保 定吉
Priority to JP4897891A priority Critical patent/JPH0645634B2/en
Publication of JPH04266898A publication Critical patent/JPH04266898A/en
Publication of JPH0645634B2 publication Critical patent/JPH0645634B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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、大豆から単離した大豆
イソフラボン配糖体に関する。
TECHNICAL FIELD The present invention relates to a soybean isoflavone glycoside isolated from soybean.

【0002】[0002]

【従来の技術】従来、大豆イソフラボン配糖体として、
ダイジン、グリシチン、ゲニスチン、6”−O−アセチ
ルダイジンおよび6”−O−アセチルゲニスチンの5種
類が報告されている。
Conventionally, as a soybean isoflavone glycoside,
Five types of daidzin, glycitin, genistin, 6 ″ -O-acetyldaididine and 6 ″ -O-acetylgenistin have been reported.

【0003】大豆イソフラボン配糖体の単離の例として
は、ナイム(Naim)らは、全粒大豆粉から、ダイジン、グ
リシチンおよびゲニスチンを単離した例(Phytochemistr
y 1973年 169〜170 頁参照) がある。
As an example of the isolation of soybean isoflavone glycosides, Naim et al. (Phytochemistr) have isolated daidzin, glycitin and genistin from whole soybean flour.
y 1973, pp. 169-170).

【0004】これに対し、太田らは、脱脂大豆から、ダ
イジン、ゲニスチン、6"-0- アセチルダイジンおよび6"
-0- アセチルゲニスチンを単離したが、グリシチンの存
在を確認することができなかったと報告している(Agri
c.Biol.Chem. 1980年 469〜470 頁およびAgric.Biol. C
hem. 1979年1415〜1419頁参照) 。
On the other hand, Ota et al., From defatted soybean, daidzin, genistin, 6 "-0-acetyldaidzine and 6"
-0- Acetylgenistin was isolated, but reported that the presence of glycitin could not be confirmed (Agri
c. Biol. Chem. 1980 pp. 469-470 and Agric. Biol. C.
hem. 1979, pp. 1415-1419).

【0005】また、ファーマカリデス(Farmakidis)も焙
煎した脱脂大豆フレークから、イソフラボン成分を単離
し、太田らと同じくグリシチンを確認できなかったと報
告している(J.Agric.Food Chem,1985 年385 〜389 頁参
照) 。
[0005] Farmakidis also reported that isoflavone components were isolated from roasted defatted soybean flakes and that glycitin could not be confirmed as in Ota et al. (J. Agric. Food Chem, 1985). (See pages 385-389).

【0006】[0006]

【発明が解決しようとする課題】大豆から単離した大豆
イソフラボン成分は、抗酸化、エストロゲン、抗菌、抗
癌等の生理作用が報告されていることで、食品中の機能
性成分としても注目されてきているが、従来の大豆から
単離したイソフラボン成分は、コストを無視して単離し
ているもので、工業的に得るのにはコスト的に問題があ
る。
The soybean isoflavone component isolated from soybean has been reported to have physiological effects such as antioxidant, estrogen, antibacterial, and anticancer, and thus has attracted attention as a functional component in foods. However, conventional isoflavone components isolated from soybeans are isolated by ignoring the cost, and there is a cost problem in obtaining them industrially.

【0007】本発明は、この問題を解決するためになさ
れたものであって、この食品中の機能性成分として注目
されている大豆イソフラボン成分を、工業的に採算のあ
うものとして、単離することが、可能となる新たな手段
を提供することを目的とする。
The present invention has been made in order to solve this problem, and isolates the soybean isoflavone component, which is attracting attention as a functional component in this food, as an industrially profitable product. The purpose is to provide a new means that is possible.

【0008】[0008]

【課題を解決するための手段】本発明は、上述の目的の
ために種々の研究を重ねて得られた知見に基いて完成し
たものである。
The present invention has been completed based on the findings obtained through various studies for the above purpose.

【0009】従来の大豆イソフラボン成分の単離が、5
種類あるとされている大豆イソフラボン配糖体のうち
で、グリシチンについてはなされていないことから、ま
ず、このグリシチン成分についての研究を行なった。
The conventional isolation of soy isoflavone components is 5
Of the soybean isoflavone glycosides that are considered to be varieties, glycitin has not been studied, so we first studied this glycitin component.

【0010】大豆を種皮、子葉および胚軸に分け、部位
別のイソフラボン成分含量を測定した結果
Soybean was divided into seed coat, cotyledon and hypocotyl, and the isoflavone component content was measured for each site.

【表1】 にあるように、グリシチンは、胚軸にのみ高濃度で存在
することを明らかにすることができた。さらに、数品種
のイソフラボン成分含量を測定した結果、胚軸の総イソ
フラボン成分濃度は、子葉の20〜60倍高濃度であり、大
豆のイソフラボン成分の30〜50% が全粒大豆重量の2 〜
3%にすぎない胚軸に極在していることも分かった。ま
た、胚軸からは、既知イソフラボン成分とは、明らかに
異なる成分が検出され、この成分は、その特性から推測
して文献末記載の新規なイソフラボン物質であると判断
された。
[Table 1] As shown in, it was possible to reveal that glycitin is only present in the hypocotyl at high concentration. Furthermore, as a result of measuring the isoflavone component content of several cultivars, the total isoflavone component concentration of hypocotyl was 20 to 60 times higher than that of cotyledon, and 30 to 50% of the isoflavone component of soybean was 2 to 60% of the total soybean weight.
It was also found to be localized in the hypocotyl, which accounts for only 3%. In addition, a component that was clearly different from the known isoflavone component was detected in the hypocotyl, and this component was judged to be a novel isoflavone substance described in the end of the literature by inferring from its characteristics.

【0011】そして、この新規なイソフラボン成分の単
離、精製を研究したところ、大豆胚軸を出発原料として
用い、次のような方法で単離、精製をすることができ
た。
Studies on the isolation and purification of this novel isoflavone component have revealed that the soybean hypocotyl can be used as a starting material and isolated and purified by the following method.

【0012】即ち、大豆胚軸から含水エタノールにより
大豆配糖体成分を抽出し、抽出液を濃縮・乾固した抽出
エキスを得た。
That is, a soybean glycoside component was extracted from soybean hypocotyl with hydrous ethanol, and the extract was concentrated and dried to obtain an extract.

【0013】このエキスを水に分散後、ブタノールを添
加し、ブタノール層にイソフラボン成分を抽出すること
により大豆オリゴ糖を除去した。
This extract was dispersed in water, butanol was added, and the isoflavone component was extracted into the butanol layer to remove the soybean oligosaccharide.

【0014】このブタノール層を濃縮・乾固後、メタノ
ールに溶解し、セファデックスLH−20によるゲル瀘
過で粗イソラボン画分を得た。
This butanol layer was concentrated and dried to dryness, then dissolved in methanol, and subjected to gel filtration with Sephadex LH-20 to obtain a crude isolavone fraction.

【0015】この粗イソラボン画分を高速液体クロマト
グラフィー(HPLC)で処理することにより、2種類
の新規なイソフラボン物質を単離することができた。た
だし、上記の単離法は一例であって、類似の性質を示す
溶媒ないし溶媒系の使用や、その他の条件の変更も可能
である。
By treating this crude isolavone fraction with high performance liquid chromatography (HPLC), two novel isoflavone substances could be isolated. However, the above isolation method is an example, and it is possible to use a solvent or a solvent system having similar properties and change other conditions.

【0016】単離したイソフラボン物質を、核磁気共鳴
スペクトル等の機器分析で検討した結果、新規なイソフ
ラボン物質であることを確認し、その構造を決定するこ
とができた。即ち、この単離したイソフラボン物質は、
As a result of examining the isolated isoflavone substance by instrumental analysis such as nuclear magnetic resonance spectrum, it was confirmed that it was a novel isoflavone substance, and its structure could be determined. That is, the isolated isoflavone material is

【化1】 に示している如く、グリシテイン−7−O−β−(6”
−O−アセチル)−D−グルコピラノサイドおよびグリ
シチイン−7−O−β−(6”−O−マロニル)−D−
グルコピラノサイドと記すことのできる化学構造を持つ
新規なイソフラボン物質である。
[Chemical 1] As shown in, glycitein-7-O-β- (6 "
-O-acetyl) -D-glucopyranoside and glyciciin-7-O-β- (6 "-O-malonyl) -D-
It is a novel isoflavone substance with a chemical structure that can be described as glucopyranoside.

【0017】そして、この新規なイソフラボン物質は、
大豆の総イソフラボン成分の30〜50%が極在してい
て、全粒大豆重量の2〜3%にすぎない胚軸を出発原料
として、単離し精製して得られるものであるから、従来
手段で得られる大豆イソフラボン成分に比して遥かに単
離精製のコストが低減できて単離・精製の工業化を可能
とするものである。
This novel isoflavone substance is
30 to 50% of the total isoflavone component of soybean is extremely present, and is obtained by isolation and purification using hypocotyl as a starting material, which is only 2 to 3% of the weight of whole soybean. Compared with the soybean isoflavone component obtained in 1., the cost of isolation and purification can be reduced significantly, and the isolation and purification can be industrialized.

【0018】それ故、本発明においては、前述の目的を
達成するための手段として、この大豆胚軸から抽出され
る上記化学構造を持つ新規な大豆イソフラボン配糖体を
提起するものである。
Therefore, the present invention proposes a novel soybean isoflavone glycoside having the above-mentioned chemical structure extracted from this soybean hypocotyl as a means for achieving the above-mentioned object.

【0019】[0019]

【実施例】次に実施例を詳述する。大豆胚軸を粉砕後、
5倍量の70%含水エタノールで3回抽出し、この抽出
液をロータリーエバポレーターで減圧乾固した。
EXAMPLES Next, examples will be described in detail. After crushing the soybean hypocotyl,
It was extracted 3 times with 5 volumes of 70% hydrous ethanol, and this extract was dried under reduced pressure with a rotary evaporator.

【0020】この減圧乾固物にブタノールと水を各1リ
ットル添加し、充分に溶解後、分液ロートに入れ、激し
く撹拌することにより大豆配糖体成分を抽出した。
To this dried product under reduced pressure, 1 liter of butanol and 1 liter of water were added, and after sufficiently dissolving, the mixture was placed in a separating funnel and vigorously stirred to extract the soybean glycoside component.

【0021】一晩静置後、ブタノール層をロータリーエ
バポレーターで、濃縮・乾固し、粗大豆配糖体画分を得
た。
After allowing to stand overnight, the butanol layer was concentrated and dried by a rotary evaporator to obtain a crude soybean glycoside fraction.

【0022】この粗大豆配糖体画分をメタノールに溶か
してセファデックスLH−20カラム(5×74cm) に供
し、100%メタノールで溶出した。溶出画分を薄層クロマ
トグラフィーおよび高速液体クロマトグラフィーで分析
し、各溶出成分の同定を行なった。新規イソフラボンの
溶出画分を集めて濃縮・乾固し、逆相系カラムを用いた
液体クロマトグラフィーで処理することになって、新規
イソフラボン物質I とIIをそれぞれ単離した。
This crude soybean glycoside fraction was dissolved in methanol and applied to a Sephadex LH-20 column (5 × 74 cm) and eluted with 100% methanol. The eluted fractions were analyzed by thin layer chromatography and high performance liquid chromatography to identify each eluted component. The elution fractions of the novel isoflavones were collected, concentrated and dried, and then subjected to liquid chromatography using a reversed-phase column to isolate novel isoflavone substances I and II, respectively.

【0023】単離したイソフラボン成分 IとIIのスペク
トルデータは、
The spectral data of the isolated isoflavone components I and II are

【表2】 [Table 2]

【表3】 [Table 3]

【表4】 の通りであった。[Table 4] It was the street.

【0024】これらの結果から、イソフラボン物質 Iを
グリシテイン−7−O−β−(6”−O−マロニル)−
D−グルコピラノサイド、イソフラボン物質IIをグリシ
テイン−7−O−β−(6”−O−アセチル)−D−グ
ルコピラノサイドであると決定した。
From these results, isoflavone substance I was identified as glycitein-7-O-β- (6 "-O-malonyl)-
D-glucopyranoside, isoflavone substance II was determined to be glycitein-7-O-β- (6 "-O-acetyl) -D-glucopyranoside.

【0025】[0025]

【発明の効果】以上説明したように、本発明による大豆
イソフラボン配糖体は、大豆の総イソフラボン成分の3
0〜50%が極在していて、全粒大豆重量の2〜3%に
すぎない胚軸を、出発原料として、単離し精製して得ら
れるものであるから、単離・精製の工業化が、コストに
おいて充分に可能なものとなる。
As described above, the soybean isoflavone glycoside according to the present invention comprises 3 of the total isoflavone components of soybean.
It is obtained by isolating and purifying the hypocotyl, which has 0 to 50% as a starting material and is only 2 to 3% of the weight of the whole grain soybean. That is, it is possible in terms of cost.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 グリシテイン−7−O−β−(6”−O
−アセチル)−D−グルコピラノサイドおよびグリシテ
イン−7−O−β−(6”−O−マロニル)−D−グル
コピラノサイドからなる大豆イソフラボン配糖体。
1. Glycitein-7-O-β- (6 "-O
A soy isoflavone glycoside consisting of -acetyl) -D-glucopyranoside and glycitein-7-O-β- (6 "-O-malonyl) -D-glucopyranoside.
JP4897891A 1991-02-21 1991-02-21 Soy isoflavone glycoside Expired - Fee Related JPH0645634B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4897891A JPH0645634B2 (en) 1991-02-21 1991-02-21 Soy isoflavone glycoside

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4897891A JPH0645634B2 (en) 1991-02-21 1991-02-21 Soy isoflavone glycoside

Publications (2)

Publication Number Publication Date
JPH04266898A JPH04266898A (en) 1992-09-22
JPH0645634B2 true JPH0645634B2 (en) 1994-06-15

Family

ID=12818345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4897891A Expired - Fee Related JPH0645634B2 (en) 1991-02-21 1991-02-21 Soy isoflavone glycoside

Country Status (1)

Country Link
JP (1) JPH0645634B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5821361A (en) 1996-06-11 1998-10-13 Protein Technologies International, Inc. Recovery of isoflavones from soy molasses
US6521282B1 (en) 1996-08-09 2003-02-18 Protein Technologies International, Inc. Aglucone isoflavone enriched vegetable flour and grit
US6579561B2 (en) 1996-08-09 2003-06-17 Protein Technologies International, Inc. Aglucone isoflavone enriched vegetable flour and vegetable grit and process for making the same from a vegetable material containing isoflavone
US6132795A (en) * 1998-03-15 2000-10-17 Protein Technologies International, Inc. Vegetable protein composition containing an isoflavone depleted vegetable protein material with an isoflavone containing material
US6083553A (en) * 1998-06-05 2000-07-04 Protein Technologies International, Inc. Recovery of isoflavones from soy molasses
US6703051B1 (en) 1998-10-13 2004-03-09 Solae, Llc Process for separating and recovering protein and isoflavones from a plant material
US6544566B1 (en) 1999-04-23 2003-04-08 Protein Technologies International, Inc. Composition containing plant sterol, soy protein and isoflavone for reducing LDL cholesterol
US7285297B1 (en) 1999-04-23 2007-10-23 Archer-Daniels-Midland Company Method of reducing low density liproprotein cholesterol concentration
JP4475947B2 (en) 2001-07-24 2010-06-09 カーギル インコーポレイテッド Method for isolating phenolic compounds
EP1576893A4 (en) * 2002-12-24 2006-01-04 Fuji Oil Co Ltd Composition containing isoflavone of high purity at high concentration and process for producing the same
JP2006069898A (en) * 2004-08-31 2006-03-16 Fuji Oil Co Ltd Composition for ameliorating renal function

Also Published As

Publication number Publication date
JPH04266898A (en) 1992-09-22

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