JPH05336937A - Method for highly concentrating fruit juice - Google Patents
Method for highly concentrating fruit juiceInfo
- Publication number
- JPH05336937A JPH05336937A JP4176052A JP17605292A JPH05336937A JP H05336937 A JPH05336937 A JP H05336937A JP 4176052 A JP4176052 A JP 4176052A JP 17605292 A JP17605292 A JP 17605292A JP H05336937 A JPH05336937 A JP H05336937A
- Authority
- JP
- Japan
- Prior art keywords
- stage unit
- fruit juice
- membrane module
- reverse osmosis
- membrane
- 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.)
- Granted
Links
- 235000015203 fruit juice Nutrition 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 12
- 239000012528 membrane Substances 0.000 claims abstract description 60
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 28
- 150000003839 salts Chemical class 0.000 claims description 23
- 239000012466 permeate Substances 0.000 claims description 13
- 230000005764 inhibitory process Effects 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 claims description 7
- 235000013399 edible fruits Nutrition 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 235000002639 sodium chloride Nutrition 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- 239000000047 product Substances 0.000 description 17
- 239000012141 concentrate Substances 0.000 description 7
- 235000015197 apple juice Nutrition 0.000 description 5
- 239000004480 active ingredient Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 241000220225 Malus Species 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 3
- 235000013944 peach juice Nutrition 0.000 description 3
- 244000144730 Amygdalus persica Species 0.000 description 2
- 235000006040 Prunus persica var persica Nutrition 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 101100269323 Arabidopsis thaliana AFC3 gene Proteins 0.000 description 1
- 241001672694 Citrus reticulata Species 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Non-Alcoholic Beverages (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Jellies, Jams, And Syrups (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は果実ジュースの高濃縮方
法に関する。果実ジュースの高濃縮品が中間製品とし
て、また最終製品として広く利用されている。該高濃縮
品には果実本来の品質（色、味、香等）を保有するもの
であることが要請される。本発明は果実本来の品質を保
有する高濃縮品を継続して安定製造することができる果
実ジュースの高濃縮方法に関するものである。FIELD OF THE INVENTION The present invention relates to a method for highly concentrating fruit juice. Highly concentrated fruit juices are widely used as intermediate products and final products. The highly concentrated product is required to have the original quality of the fruit (color, taste, aroma, etc.). The present invention relates to a method for highly concentrating fruit juice, which enables continuous and stable production of highly concentrated products having the original quality of fruits.
【０００２】[0002]
【従来の技術】従来、果実ジュースの濃縮方法として一
般に真空濃縮が行なわれている。ところが、この従来法
には、その条件によって程度の差はあるが、水を蒸発さ
せる相変換を伴うため、果実本来の品質劣化が避けられ
ないという欠点がある。2. Description of the Related Art Conventionally, vacuum concentration is generally performed as a method for concentrating fruit juice. However, this conventional method has a drawback in that it is inevitable that the original quality of the fruit is deteriorated, because the conventional method involves a phase conversion for evaporating water, though the degree of the condition varies.
【０００３】そこで従来、相変換を伴わない、したがっ
て果実本来の品質を保有する果実ジュースの濃縮方法と
して逆浸透濃縮が提案されている。これには例えば、搾
汁してパルプ質含量を調整した果実ジュースを同じ膜モ
ジュールを備える１段のユニットへ一過式で流過させて
逆浸透濃縮する方法（特公昭５９−５３８２４）、搾汁
した果実ジュースを異なる膜モジュールを備える多段の
ユニットへ循環式で流過させて逆浸透濃縮する方法（特
開平３−２１３２６）、搾汁した果実ジュースから精密
濾過や限外濾過で分離した濾液を異なる膜モジュールを
備える多段のユニットへ循環式で流過させて逆浸透濃縮
する方法（特開平３−５８７７４）等がある。ところ
が、これらの従来法には、実際のところ、過大な操作圧
力、雑菌による汚染、煩雑な操作等により、果実ジュー
スからBrix３０％以上の高濃縮品を継続して安定製造す
ることが難しいという欠点がある。Therefore, conventionally, reverse osmosis concentration has been proposed as a method for concentrating fruit juice that does not involve phase conversion and therefore retains the original quality of the fruit. For this purpose, for example, a method in which fruit juice whose pulp content has been adjusted by squeezing is passed through a one-stage unit equipped with the same membrane module by reverse osmosis to concentrate it (Japanese Patent Publication No. 59-53824), A method of circulating squeezed fruit juice into a multi-stage unit equipped with different membrane modules by reverse osmosis and concentration (JP-A-3-21326), and a filtrate separated from squeezed fruit juice by microfiltration or ultrafiltration. A reverse osmosis concentration method is known in which a solution is circulated through a multi-stage unit equipped with different membrane modules in a circulating manner (JP-A-3-58774). However, these conventional methods have a drawback that it is difficult to continuously produce a highly concentrated product of Brix of 30% or more from fruit juice due to excessive operation pressure, contamination by various bacteria, and complicated operation. There is.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、従来の濃縮方法では、果実本来の品質が劣
化したり、或は果実ジュースからBrix３０％以上の高濃
縮品を継続して安定製造することが難しい点である。The problem to be solved by the present invention is that in the conventional concentration method, the original quality of the fruit is deteriorated, or a highly concentrated product of Brix 30% or more is continuously prepared from the fruit juice. It is difficult to manufacture stably.
【０００５】[0005]
【課題を解決するための手段】しかして本発明は、パル
プ質含量５％以上に調整した果実ジュースを、直列に接
続された食塩阻止率９０％以上の膜モジュールを備える
第１段ユニットと食塩阻止率３０％以下の膜モジュール
を備える第２段ユニットとへ、該第２段ユニットからの
透過液を該第１段ユニットに返送しつつ、一過式で流過
させて、Brix３０％以上に逆浸透濃縮することを特徴と
する果実ジュースの高濃縮方法に係る。DISCLOSURE OF THE INVENTION According to the present invention, however, a fruit juice adjusted to a pulp content of 5% or more is connected in series with a first-stage unit equipped with a membrane module having a salt rejection rate of 90% or more and salt. While passing the permeate from the second-stage unit back to the first-stage unit to a second-stage unit equipped with a membrane module having a rejection rate of 30% or less, the permeate is allowed to pass through in a transient manner so that Brix is 30% or more. The present invention relates to a method for highly concentrating fruit juice, which comprises concentrating by reverse osmosis.
【０００６】本発明では、リンゴ、ピーチ、ミカン等、
果実類を破砕し、搾汁した果実ジュースであって、その
パルプ質含量を５％以上に調整した果実ジュースを逆浸
透濃縮する。ここにパルプ質含量は、果実ジュースを３
０００rpm×１０分間で遠心分離したときの全体に対す
る容積率である。パルプ質含量の調整は、条件設定によ
り搾汁の際に同時に行なうこともできるが、確実を期す
るため、搾汁した果実ジュースを遠心分離や篩分け等に
供して行なうのが好ましい。In the present invention, apple, peach, mandarin orange, etc.
Reverse osmosis is performed on fruit juice obtained by crushing and squeezing fruits and having the pulp content adjusted to 5% or more. The pulp content here is 3 for fruit juice.
It is the volume ratio to the whole when centrifuged at 000 rpm × 10 minutes. The pulp content can be adjusted at the same time as the squeezing by setting the conditions, but in order to ensure reliability, it is preferable to subject the squeezed fruit juice to centrifugation or sieving.
【０００７】果実ジュースの濃縮においては一般に、そ
のパルプ質含量が高いと、濃縮に伴って高粘性になり、
高濃縮が難しくなるため、パルプ質含量をできるだけ低
く調整したものを濃縮している。例えば、前述した従来
の真空濃縮ではパルプ質含量１％以下に調整した果実ジ
ュースを真空濃縮しているのが実情であり、また前述し
た従来の逆浸透濃縮（特開平３−５８７７４）では搾汁
した果実ジュースを精密濾過や限外濾過に供して分離し
た濾液を逆浸透濃縮している。[0007] In the concentration of fruit juice, generally, when the pulp content is high, the viscosity becomes high with the concentration,
Since it is difficult to highly concentrate the pulp, the pulp content is adjusted as low as possible. For example, in the conventional vacuum concentration described above, the fact is that fruit juice adjusted to a pulp content of 1% or less is concentrated in vacuum, and in the conventional reverse osmosis concentration described above (JP-A-3-58774), juice is extracted. The obtained fruit juice is subjected to microfiltration or ultrafiltration, and the separated filtrate is concentrated by reverse osmosis.
【０００８】ところが意外にも、パルプ質含量を種々変
えて調整した果実ジュースを後述するような２段階のユ
ニットへ一過式で流過させて逆浸透濃縮すると、パルプ
質含量５％以上の果実ジュースを逆浸透濃縮する場合に
Brix３０％以上の高濃縮品を継続して安定製造すること
ができるのである。本発明において、パルプ質含量５％
以上に調整した果実ジュースを逆浸透濃縮する由縁であ
る。もっとも、パルプ質含量を余り高くすると、その逆
浸透濃縮に際し、それだけ高粘性になり、またそれだけ
膜モジュール内の圧損も大きくなるので、装置面及び操
作面も考慮して、パルプ質含量は１０〜２０％程度に調
整するのが好ましい。Surprisingly, however, when fruit juice prepared by varying the pulp content is passed through a two-stage unit as described below in a transient manner and concentrated by reverse osmosis, the fruit having a pulp content of 5% or more is obtained. For reverse osmosis concentration of juice
Brix 30% or more highly concentrated products can be continuously and stably manufactured. In the present invention, pulp content 5%
This is the reason for reverse osmosis concentration of the fruit juice prepared above. However, if the pulp content is too high, it becomes highly viscous during reverse osmosis concentration, and the pressure loss in the membrane module also increases accordingly. It is preferably adjusted to about 20%.
【０００９】そして本発明では、上記のようにパルプ質
含量を調整した果実ジュースを逆浸透濃縮する。逆浸透
濃縮では、パルプ質含量５％以上に調整した果実ジュー
スを、直列に接続された食塩阻止率９０％以上の膜モジ
ュールを備える第１段ユニットと食塩阻止率３０％以下
の膜モジュールを備える第２段ユニットとへ一過式で流
過させる。第１段ユニットから得られる濃縮品を該第１
段ユニットに返送したり、或は第２段ユニットから得ら
れる濃縮品を該第１段ユニット又は該第２段ユニットに
返送する循環式も考えられるが、このような循環式を採
用すると、単に装置構造が複雑になり、またその操作が
煩雑になるだけでなく、菌管理が難しくなって、最終的
に得られる濃縮品が雑菌により汚染され易くなる。In the present invention, the fruit juice whose pulp content is adjusted as described above is concentrated by reverse osmosis. In reverse osmosis concentration, fruit juice adjusted to a pulp content of 5% or more is provided in series with a first-stage unit equipped with a membrane module having a salt rejection rate of 90% or more and a membrane module having a salt inhibition rate of 30% or less. It is passed through to the second stage unit in a transient manner. The concentrate obtained from the first-stage unit is the first
A circulation system in which the concentrated product obtained from the second stage unit or the concentrated product obtained from the second stage unit is returned to the first stage unit or the second stage unit is also conceivable. Not only the device structure becomes complicated and its operation becomes complicated, but also the control of bacteria becomes difficult, and the finally obtained concentrated product is easily contaminated by various bacteria.
【００１０】また逆浸透濃縮では、第１段ユニットから
の透過液を廃棄し、第２段ユニットからの透過液を該第
１段ユニットに返送する。第１段ユニットには食塩阻止
率９０％以上の逆浸透膜が装着された膜モジュールが装
備されており、かかる高阻止率の逆浸透膜を透過する液
中には果実本来の有効成分が殆ど含まれてこないので、
これを廃棄する。しかし第２段ユニットには食塩阻止率
３０％以下の逆浸透膜が装着された膜モジュールが装備
されており、かかる低阻止率の逆浸透膜を透過する液中
には果実本来の有効成分が含まれてくるので、該有効成
分を回収するためにこれを第１段ユニットに返送する。
第１段ユニットの膜モジュールとして食塩阻止率９０％
未満のものを用いると、果実本来の有効成分が失われて
しまい、また第２段ユニットの膜モジュールとして食塩
阻止率３０％超のものを用いると、必要とされる透過液
量が得られず、膜面積を大きくすることが必要となるた
め、全体として膜モジュール内の圧損が大きくなり、Br
ix３０％以上の高濃縮品を継続して安定製造することが
できなくなってしまう。In reverse osmosis concentration, the permeate from the first-stage unit is discarded and the permeate from the second-stage unit is returned to the first-stage unit. The first-stage unit is equipped with a membrane module equipped with a reverse osmosis membrane with a salt blocking rate of 90% or more, and most of the fruit's original active ingredients are contained in the liquid that permeates the high blocking rate reverse osmosis membrane. Since it is not included,
Discard this. However, the second-stage unit is equipped with a membrane module equipped with a reverse osmosis membrane with a salt rejection rate of 30% or less, and the liquid that permeates the reverse osmosis membrane with such a low rejection rate contains the fruit's original active ingredient. As it is included, it is returned to the first stage unit to recover the active ingredient.
Salt rejection rate of 90% as a membrane module of the 1st stage unit
If the amount less than 30% is used, the active ingredient originally contained in the fruit is lost, and if the salt inhibition rate of more than 30% is used as the membrane module of the second stage unit, the required amount of permeate cannot be obtained. Since the membrane area needs to be increased, the pressure loss in the membrane module increases as a whole,
It will not be possible to continuously and stably manufacture highly concentrated products with ix of 30% or more.
【００１１】第１段ユニットに装備されている膜モジュ
ールの膜面積と第２段ユニットに装備されている膜モジ
ュールの膜面積との相互関係は任意に設定できるが、第
１段ユニットへの果実ジュースの供給量、第１段ユニッ
トにおける圧損と濃縮度、第２段ユニットにおける圧損
と濃縮度、第２段ユニットから第１段ユニットへの透過
液の返送量、第２段ユニットから得られる濃縮品の量と
濃縮度等、これら全体のバランスを維持して、Brix３０
％以上の高濃縮品をより良く継続して安定製造するため
には、第２段ユニットの膜面積を第１段ユニットの膜面
積よりも小さくするのが好ましく、この場合、第２段ユ
ニットの膜面積を第１段ユニットの膜面積の１０〜７０
％にするのが更に好ましい。The mutual relationship between the membrane area of the membrane module provided in the first-stage unit and the membrane area of the membrane module provided in the second-stage unit can be arbitrarily set. Amount of juice supplied, pressure loss and concentration in the first stage unit, pressure loss and concentration in the second stage unit, return amount of permeate from the second stage unit to the first stage unit, concentration obtained from the second stage unit Maintaining the overall balance of the quantity and concentration of the product, Brix30
%, It is preferable to make the membrane area of the second-stage unit smaller than that of the first-stage unit in order to continuously and stably produce a highly concentrated product. Membrane area is 10 to 70 of the membrane area of the first stage unit.
% Is more preferable.
【００１２】図１は本発明の一実施状態を略示する系統
図である。第１段ユニット１１と第２段ユニット１２と
が直列に接続されている。第１段ユニット１１には食塩
阻止率９０％以上の膜モジュール２１が装備されてお
り、また第２段ユニット１２には食塩阻止率３０％以下
の膜モジュール２２が装備されていて、第２段ユニット
１２の膜面積は第１段ユニット１１の膜面積の１０〜７
０％に設定されている。パルプ質含量５％以上に調整し
た果実ジュースを第１段ユニット１１と第２段ユニット
１２とへ一過式で流過させ、この際の第１段ユニット１
１からの透過液を廃棄し、第２段ユニット２２からの透
過液を第１段ユニット１１に返送している。FIG. 1 is a system diagram schematically showing one embodiment of the present invention. The first stage unit 11 and the second stage unit 12 are connected in series. The first-stage unit 11 is equipped with a membrane module 21 having a salt rejection rate of 90% or more, and the second-stage unit 12 is equipped with a membrane module 22 having a salt rejection rate of 30% or less. The membrane area of the unit 12 is 10 to 7 of the membrane area of the first stage unit 11.
It is set to 0%. The fruit juice adjusted to have a pulp content of 5% or more is passed through the first-stage unit 11 and the second-stage unit 12 in a transient manner.
The permeate from 1 is discarded and the permeate from the second stage unit 22 is returned to the first stage unit 11.
【００１３】図２は図１において第１段ユニットへ供給
する果実ジュースのパルプ質含量を０〜２０％で変化さ
せたときの第２段ユニットから得られる濃縮品の濃度を
例示するグラフである。ここでは搾汁したBrix１１．５
％のリンゴジュースであって、そのパルプ質含量を遠心
分離で調整したリンゴジュースを、食塩阻止率９５％で
合計膜面積１５m2のチューブラ型膜モジュールが装備さ
れた第１段ユニットと、食塩阻止率２０％で合計膜面積
９m2のチューブラ型膜モジュールが装備された第２段ユ
ニットとへ、２００リットル／時で１０時間、一過式で
連続流下させている。図２からも明らかなように、パル
プ質含量５％以上に調整したリンゴジュースを逆浸透濃
縮する場合にBrix３０％以上の高濃縮品を継続して安定
製造することができるのである。FIG. 2 is a graph illustrating the concentration of the concentrate obtained from the second-stage unit when the pulp content of the fruit juice supplied to the first-stage unit in FIG. 1 is changed from 0 to 20%. .. Brix 11.5 squeezed here
% Apple juice, the pulp content of which was adjusted by centrifugation, and the first stage unit equipped with a tubular membrane module with a total membrane area of 15 m 2 with a salt rejection rate of 95%, and salt inhibition At a rate of 20%, a second membrane unit equipped with a tubular membrane module having a total membrane area of 9 m 2 is continuously flowed down at 200 liters / hour for 10 hours in a transient manner. As is clear from FIG. 2, when reverse osmosis concentration of apple juice adjusted to a pulp content of 5% or more, a highly concentrated product having Brix of 30% or more can be continuously and stably produced.
【００１４】図３は図１において第２段ユニットに装備
されている膜モジュールの食塩阻止率を１０〜４０％で
変化させたときの該第２段ユニットから得られる濃縮品
の濃度を例示するグラフである。ここではBrix１１．５
％でパルプ質含量１５％に調整したリンゴジュースを、
食塩阻止率９９％で合計膜面積１５m2のチューブラ型膜
モジュールが装備された第１段ユニットと、食塩阻止率
１０〜４０％で合計膜面積９m2のチューブラ型膜モジュ
ールが装備された第２段ユニットとへ、２００リットル
／時で１０時間、一過式で連続流下させている。図３か
らも明らかなように、第２段ユニットの食塩阻止率が３
０％以下である場合にBrix３０％以上の高濃縮品を継続
して安定製造することができるのである。FIG. 3 illustrates the concentration of the concentrate obtained from the second-stage unit when the salt rejection rate of the membrane module equipped in the second-stage unit in FIG. 1 is changed by 10 to 40%. It is a graph. Brix 11.5 here
% Apple pulp adjusted to a pulp content of 15%,
A first stage unit which tubular membrane module of the total membrane area 15 m 2 at 99% salt rejection was equipped, the tubular membrane modules of the total membrane area 9m 2 10 to 40% salt rejection was equipped with 2 It is continuously flowed down to the corrugated unit at 200 liters / hour for 10 hours in a transient manner. As is clear from FIG. 3, the salt inhibition rate of the second stage unit is 3
When it is 0% or less, a highly concentrated product having Brix of 30% or more can be continuously and stably produced.
【００１５】[0015]
・実施例１ 前述した図１の系統図にしたがい、下記の条件下でリン
ゴジュースを１０時間連続して逆浸透濃縮した。リンゴ
本来の品質を保有するBrix３７％の高濃縮品を継続して
安定製造することができた。Example 1 According to the system diagram of FIG. 1 described above, apple juice was reverse osmosis concentrated under the following conditions for 10 hours continuously. We were able to continuously and stably produce a highly concentrated product of Brix 37%, which has the original quality of apples.
【００１６】条件 リンゴジュース：Brix１１．５％、パルプ質含量１５
％、２０℃。リンゴジュースの供給量：２５０リットル
／時。第１段ユニット：食塩阻止率９９％の逆浸透膜
（ＰＣＩ社製のＡＦＣ９９）を装着したチューブラ型膜
モジュール、合計膜面積２０．０m2。第２段ユニット：
食塩阻止率１０％の逆浸透膜（日東電工社製のＮＴＲ７
４１０）を装着したチューブラ型膜モジュール、合計膜
面積９．０m2。操作圧力：５０〜７０kg/cm2。第１段ユ
ニットの入口線速：０．８０ｍ／秒。第１段ユニットか
らの廃棄透過液量：１８５リットル／時。第２段ユニッ
トの入口線速：０．３８ｍ／秒。第２段ユニットからの
返送透過液量：１０５リットル／時。Conditions Apple juice: Brix 11.5%, pulp content 15
%, 20 ° C. Apple juice supply: 250 liters / hour. First-stage unit: a tubular membrane module equipped with a reverse osmosis membrane (AFC99 manufactured by PCI) with a salt rejection rate of 99%, total membrane area 20.0 m 2 . Second stage unit:
Reverse osmosis membrane with a salt rejection rate of 10% (NTR7 manufactured by Nitto Denko Corporation)
410) equipped with a tubular membrane module, total membrane area 9.0 m 2 . Operating pressure: 50-70 kg / cm 2 . Entrance linear velocity of the first stage unit: 0.80 m / sec. Amount of waste permeate from the first stage unit: 185 liters / hour. Entrance linear velocity of the second stage unit: 0.38 m / sec. Amount of permeated liquid returned from the second stage unit: 105 liters / hour.
【００１７】・実施例２ 前述した図１の系統図にしたがい、下記の条件下でピー
チジュースを１０時間連続して逆浸透濃縮した。ピーチ
本来の品質を保有するBrix３５％の高濃縮品を継続して
安定製造することができた。Example 2 According to the system diagram of FIG. 1, the peach juice was reverse osmosis concentrated for 10 hours continuously under the following conditions. We were able to continuously and stably manufacture highly concentrated Brix 35% products that retain the original quality of peach.
【００１８】条件 ピーチジュース：Brix１０．０％、パルプ質含量１０
％、２０℃。ピーチジュースの供給量：３００リットル
／時。第１段ユニット：食塩阻止率９９％の逆浸透膜
（ＰＣＩ社製のＡＦＣ９９）を装着したチューブラ型膜
モジュール、合計膜面積２０．０m2。第２段ユニット：
食塩阻止率３０％の逆浸透膜（ＰＣＩ社製のＡＦＣ３
０）を装着したチューブラ型膜モジュール、合計膜面積
１３m2。操作圧力：５０〜７０kg/cm2。第１段ユニット
の入口線速：１．０１ｍ／秒。第１段ユニットからの廃
棄透過液量：２３２リットル／時。第２段ユニットの入
口線速：０．４９ｍ／秒。第２段ユニットからの返送透
過液量：１５０リットル／時。Conditions Peach juice: Brix 10.0%, pulp content 10
%, 20 ° C. Peach juice supply: 300 liters / hour. First-stage unit: a tubular membrane module equipped with a reverse osmosis membrane (AFC99 manufactured by PCI) with a salt rejection rate of 99%, total membrane area 20.0 m 2 . Second stage unit:
Reverse osmosis membrane with 30% salt rejection (AFC3 manufactured by PCI)
Tubular membrane module fitted with 0), total membrane area 13 m 2 . Operating pressure: 50-70 kg / cm 2 . Entrance linear velocity of the first stage unit: 1.01 m / sec. Amount of waste permeate from the first stage unit: 232 liters / hour. Entrance linear velocity of the second stage unit: 0.49 m / sec. Amount of permeated liquid returned from the second stage unit: 150 liters / hour.
【００１９】[0019]
【発明の効果】既に明らかなように、以上説明した本発
明には、果実ジュースから果実本来の品質を保有するBr
ix３０％以上の高濃縮品を継続して安定製造することが
できるという効果がある。As is apparent from the above, according to the present invention described above, Br which retains the original quality of fruit from fruit juice is obtained.
There is an effect that a highly concentrated product having an ix of 30% or more can be continuously and stably manufactured.
【図１】本発明の一実施状態を略示する系統図。FIG. 1 is a system diagram schematically showing an embodiment of the present invention.
【図２】図１において第１段ユニットへ供給する果実ジ
ュースのパルプ質含量を変化させたときの第２段ユニッ
トから得られる濃縮品の濃度を例示するグラフ。FIG. 2 is a graph illustrating the concentration of the concentrate obtained from the second-stage unit when the pulp content of the fruit juice supplied to the first-stage unit in FIG. 1 is changed.
【図３】図１において第２段ユニットに装備されている
膜モジュールの食塩阻止率（％）を変化させたときの該
第２段ユニットから得られる濃縮品の濃度を例示するグ
ラフ。3 is a graph exemplifying the concentration of a concentrate obtained from the second-stage unit when the salt inhibition rate (%) of the membrane module equipped in the second-stage unit in FIG. 1 is changed.
１１・・・第１段ユニット、１２・・・第２段ユニッ
ト、２１，２２・・・膜モジュール11 ... First stage unit, 12 ... Second stage unit, 21, 22 ... Membrane module
Claims (2)
ュースを、直列に接続された食塩阻止率９０％以上の膜
モジュールを備える第１段ユニットと食塩阻止率３０％
以下の膜モジュールを備える第２段ユニットとへ、該第
２段ユニットからの透過液を該第１段ユニットに返送し
つつ、一過式で流過させて、Brix３０％以上に逆浸透濃
縮することを特徴とする果実ジュースの高濃縮方法。1. A fruit juice adjusted to have a pulp content of 5% or more, a first-stage unit having a membrane module connected in series with a salt inhibition rate of 90% or more, and a salt inhibition rate of 30%.
A permeate from the second-stage unit is returned to the second-stage unit including the following membrane module, and is passed through in a transient manner to perform reverse osmosis concentration to Brix of 30% or more. A method for highly concentrating fruit juice, which is characterized in that
トの膜面積よりも小さくした請求項１記載の果実ジュー
スの高濃縮方法。2. The method for highly concentrating fruit juice according to claim 1, wherein the membrane area of the second-stage unit is smaller than that of the first-stage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4176052A JP2814467B2 (en) | 1992-06-09 | 1992-06-09 | Highly concentrated fruit juice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4176052A JP2814467B2 (en) | 1992-06-09 | 1992-06-09 | Highly concentrated fruit juice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05336937A true JPH05336937A (en) | 1993-12-21 |
| JP2814467B2 JP2814467B2 (en) | 1998-10-22 |
Family
ID=16006879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4176052A Expired - Lifetime JP2814467B2 (en) | 1992-06-09 | 1992-06-09 | Highly concentrated fruit juice |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2814467B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016068006A (en) * | 2014-09-29 | 2016-05-09 | 栗田工業株式会社 | Concentration system and concentration method |
| JP2018108551A (en) * | 2016-12-28 | 2018-07-12 | 三菱重工業株式会社 | Water treatment apparatus and water treatment method |
| CN109821420A (en) * | 2017-11-23 | 2019-05-31 | 神华集团有限责任公司 | Counter-infiltration system and reverse osmosis water treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953824A (en) * | 1982-09-21 | 1984-03-28 | Ricoh Co Ltd | Microfilm piece retrieval device |
| JPS59228988A (en) * | 1983-06-10 | 1984-12-22 | Jgc Corp | Method for obtaining pure water from high-conductivity water by reverse osmosis method |
| JPH0321326A (en) * | 1989-06-19 | 1991-01-30 | Natl Food Res Inst | Multistage reverse osmosis concentration apparatus |
-
1992
- 1992-06-09 JP JP4176052A patent/JP2814467B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953824A (en) * | 1982-09-21 | 1984-03-28 | Ricoh Co Ltd | Microfilm piece retrieval device |
| JPS59228988A (en) * | 1983-06-10 | 1984-12-22 | Jgc Corp | Method for obtaining pure water from high-conductivity water by reverse osmosis method |
| JPH0321326A (en) * | 1989-06-19 | 1991-01-30 | Natl Food Res Inst | Multistage reverse osmosis concentration apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016068006A (en) * | 2014-09-29 | 2016-05-09 | 栗田工業株式会社 | Concentration system and concentration method |
| JP2018108551A (en) * | 2016-12-28 | 2018-07-12 | 三菱重工業株式会社 | Water treatment apparatus and water treatment method |
| CN109821420A (en) * | 2017-11-23 | 2019-05-31 | 神华集团有限责任公司 | Counter-infiltration system and reverse osmosis water treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2814467B2 (en) | 1998-10-22 |
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