Title of Invention

"A NEW TEECHNIQUE OF PROCESSING THE MUSTARD SEED FOR REDUCING REFINING COST AND IMPROVING QUALITY OF OIL"

Abstract The invention "A new technique of processing the mustard seed for reducing refining cost & improving the quality of oil" is a new process as comparison to two major methods of oil expelling mainly mechanical expression & solvent extraction. While the Free Fatty Acid (FFA) of the oil obtained from the mechanical expression is generally low, although it is a highly ineffective extraction process, the FFA value of solvent extracted oil is generally higher requiring higher expenditure for refining. The solvent extraction process is otherwise a superior process on many counts especially the very high recovery of oil, the higher value of FFA in oil causing concern to the oil industry, through our process, we have not only been able to reduce the FFA of the solvent extracted oil by 80% by giving the treatment, due to this process the other advantages like better shelf life, saving in refining cost & superior quality of oil have also been achieved. It is reckoned that if this process is adopted on large scale as a pre-treatment process before solvent extraction process, it will result in oil of superior quality & higher profit to the oil refining industry & ultimately benefit consumer. Although the work has been conducted on mustard oil but the process would be applicable for other oils as well.
Full Text 3.1 Introduction-India is a major producer of oilseeds, although the country has still to
import large quantity of edible oil every year. Mechanical oil expression still continuous
to be very popular method of oil extraction, although it leaves behind a good quantity of
oil in the cake. In case of mustard seed oil expelling, the quality of oil and shelf life is
low. There is a good potential of improvement. It has been established that free fatty acid
(FFA) of oil extracted by mechanical expression is low while the same is higher in case
of the solvent extracted oil, the reason being the mixing of impurities and some
ingredients with the oil during solvent extraction. Since the solvent extraction is
emerging as a major method for oil extraction because of obvious advantage of higher
capacity, efficient oil extraction and ease of operation, it has become imperative to devise
a means or technique for producing solvent extracted oil with lower FFA value and
. superior quality.
3.2 Problem- In the mechanical oil expression, the FFA content is low because the oil is
extracted by compression of oil bearing globules, thereby leaving little chance of mixing
other ingredients with oil. However this process is highly inefficient as it leaves a good
amount of oil in oilcake, which is either used as animal feed or sent to solvent extraction
plant for further extraction of oil. On the other hand, in the solvent extraction process, oil
extraction is maximum, but due to action of solvent with the present oil, the other
ingredients are dissolved in oil necessitating more intensive refining to remove the
impurities. Further, during this process, the FFA value also goes up which affects the
shelf life of the oil. Hence a need was felt to develop an effective technique for reducing
the FFA value and improving the quality of the solvent extracted oil.
3.3 Advantages- The oil from the treated ground mustard seed and untreated ground
mustard seed were obtained and various tests, from G.L.C were performed on both the
samples and the following results were obtained,
Treated Ground mustard seed oil
1. Saponification value - 170
2. Iodine value (I.V)- 103
3. F.F.A (as oleic acid) - 0.80%

Fatty acids composition
1. .Palmitic acid - 2.89%
2. Olelic acid-10.23%
3. Linoleic acid -17.17%
4. Linolenic acid - 15.11 %
5. Erucic acid - 54.58% Untreated Ground Mustard Seed Oil

1. Soponification value-170
2. Iodine value (I.V) - 102
3. FFA (as oleic acid) - 5.80% Fatty acids composition

1. Palmitic Acid - 2.89%
2. Olelic Acid-9.69%
3. Linoleic acid - 17.29%
4. Linolenic acid - 16.49%
5. Erucic acid - 53.62%
From the results obtained, it was observed that only FFA was significantly reduced, which ultimately reduced, the cost of alkali for the treatment process. Besides this, the shelf life of the oil will further be increased. And the quality of oil will be better from the health point of view.
3.4 Prior technique- The techniques presently used are only mechanical extraction or solvent extraction method without any proper pre-treatment to have a low FFA oil by any of the method employed. Some pre-treatments like water and, steam treatments etc. have been reported, but all these are for enhancing the oil recovery.
3.5 Description of the technique - In this process, the mustard seed were ground in the pregrinder to a predetermined size and boiled with water at 90C for 10 minutes and ground material was allowed to cool. The hull and other impurities were removed through floating process and the water was removed by draining it out. The resultant

meal was thereafter dried at HOC for 30 minutes. The oil from the dried meal was extracted through solvent extraction process. The other batch of mustard seed was also ground and straight way solvent extracted with out any treatment. The FFA value of both the oil samples was got determined through GLC. The FFA value of the oil obtained from the new process was only 0.8% where as it was 2.8% in the conventional method thus we have been able to reduce the FFA value of the oil by around 80%. Apart from increasing the shelf life, the process has also great potential of considerably reducing the cost of refining through reduction in the quantity of alkali used for refining. The quality of oil is superior.



We claim :-
1. A process for obtaining low FFA mustard oil by
• Grinding mustard seeds in a grinder
• Boiling grinded seeds in water at 90 degree centigrade for 10 minutes
• Removing impurities by draining and floatation to obtain de-hulled meal
• Drying the meal at 110 degree centigrade for 30 minutes
• Solvent extracting the meal to obtain low FFA mustard oil.

Documents:

1836-del-2004-Abstract-(23-11-2010).pdf

1836-del-2004-abstract.pdf

1836-del-2004-Claims-(23-11-2010).pdf

1836-DEL-2004-Claims-(28-01-2011).pdf

1836-del-2004-claims.pdf

1836-del-2004-Correspondence-Others-(23-11-2010).pdf

1836-DEL-2004-Correspondence-Others-(28-01-2011).pdf

1836-del-2004-correspondence-others.pdf

1836-del-2004-Description (Complete)-(23-11-2010).pdf

1836-del-2004-description (complete).pdf

1836-del-2004-Form-1-(23-11-2010).pdf

1836-del-2004-form-1.pdf

1836-del-2004-form-18.pdf

1836-del-2004-Form-2-(23-11-2010).pdf

1836-del-2004-form-2.pdf

1836-del-2004-form-3.pdf

1836-del-2004-Form-5-(23-11-2010).pdf

1836-del-2004-form-5.pdf


Patent Number 246575
Indian Patent Application Number 1836/DEL/2004
PG Journal Number 10/2011
Publication Date 11-Mar-2011
Grant Date 04-Mar-2011
Date of Filing 27-Sep-2004
Name of Patentee INDIAN COUNCIL OF AGRICULTURAL RESEARCH
Applicant Address KRISHI BHAVAN, DR. RAJENDRA PRASAD ROAD, NEW DELHI - 110001
Inventors:
# Inventor's Name Inventor's Address
1 DR. SANJEEV KUMAR TYAGI SCIENTIST (CHEMICAL ENGINEERING) FG&OP DIVISION, CIPHET, PAU CAMPUS, LUDHIANA (PB)-141 004
2 DR. ONKAR DOMAJI WANJARI SCIENTIST (CHEMICAL ENGINEERING) FG&OP DIVISION, CIPHET, PAU CAMPUS, LUDHIANA (PB)-141 004
3 DR. SYED MOHAMMED ILYAS DIRECTOR, CIPHET, PAU CAMPUS, LUDHIANA (P.B)-141 004
PCT International Classification Number C11B 1/10
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA