WO2010069746A1 - Edible fat powders - Google Patents
Edible fat powders Download PDFInfo
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- WO2010069746A1 WO2010069746A1 PCT/EP2009/066093 EP2009066093W WO2010069746A1 WO 2010069746 A1 WO2010069746 A1 WO 2010069746A1 EP 2009066093 W EP2009066093 W EP 2009066093W WO 2010069746 A1 WO2010069746 A1 WO 2010069746A1
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- WIPO (PCT)
- Prior art keywords
- fat
- powder
- degrees celsius
- fat powder
- structuring
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D9/00—Other edible oils or fats, e.g. shortenings, cooking oils
- A23D9/02—Other edible oils or fats, e.g. shortenings, cooking oils characterised by the production or working-up
- A23D9/04—Working-up
- A23D9/05—Forming free-flowing pieces
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/001—Spread compositions
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/005—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
- A23D7/0056—Spread compositions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/02—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by the production or working-up
Definitions
- the present invention relates to edible fat powders and use of such edible fat powders to prepare fat continuous spreads.
- Fat continuous food products are well known in the art and include for example shortenings comprising a fat phase and water in oil spreads like margarine comprising a fat phase and an aqueous phase.
- the fat phase of margarine and similar edible fat continuous spreads is often a mixture of liquid oil (i.e. fat that is liquid at ambient temperature) and fat which is solid at ambient temperatures.
- the solid fat also called structuring fat or hardstock fat, serves to structure the fat phase (being the case in for example a shortening as well as in a water in oil emulsion) and helps to stabilize the aqueous phase, if present, by forming a fat crystal network.
- the structuring fat has such properties that it melts or dissolves at mouth temperature. Otherwise the product may have a heavy and/or waxy mouthfeel.
- a fat continuous spread like for example margarine and low fat spread
- the low fat spread usually comprising from 10 to 40 wt% fat on total composition
- Temperature cycling means that the product is subjected to low and high temperatures (e.g. when the consumer takes the product out of the refrigerator and leaves it for some time at the table to use it). This may have a negative influence on the structure of the spread (like for example destabilization of the emulsion or oil-exudation).
- Generally edible fat continuous food products like for example margarines and similar edible fat continuous spreads are prepared according to known processes that encompass the following steps: 1. Mixing of the liquid oil, the structuring fat and if present the aqueous phase at a temperature at which the structuring fat is definitely liquid;
- a disadvantage of these processes is that the complete composition (including the liquid oil, structuring fat and if present the aqueous phase) is subjected to a heating step and a cooling step. This requires a lot of energy. For a spread comprising for example 6 wt% structuring fat the whole composition (100 wt%) has to be heated and cooled.
- Another disadvantage of the known processes is that the choice of fats that can practically be used as structuring agent is rather limited. If the melting point of the structuring agent is too high the melting properties in the mouth are unsatisfactory. If on the other hand, the melting point is too low, the emulsion stability will be negatively affected. Moreover the amount of saturated fatty acids (SAFA) in the structuring agent is usually relatively high. Also trans fatty acid may be present. Some experts have called for reductions in these fatty acids to improve cardiovascular health.
- SAFA saturated fatty acids
- a further disadvantage of the known processes is that the product may deteriorate due to the changes in temperature caused by the heating and cooling step.
- EP 1285584 A2 discloses a method to prepare a margarine encompassing taking the solid fat component, together with a minimal amount of the oil phase, cryogenically re-crystallizing it and then combining it with an emulsion of the aqueous phase dispersed in the remainder of the oil phase or by adding the oil and aqueous phases sequentially.
- the disclosed shortenings and spreads contain relatively high levels of structuring fat (e.g. 25 wt% or more). Furthermore, the structuring fats are partly or fully hydrogenated.
- EP 1651338 A1 discloses a process for the preparation of an edible dispersion like for example margarine, wherein the dispersion is formed by mixing oil, solid structuring agent particles and an aqueous phase and/or solid phase.
- the solid structuring agent particles have a microporous structure of submicron size particles.
- the solid structuring agent particles can be prepared using a micronisation process.
- fat powder to make a fat continuous spread like for example a low fat spread may not always result in a spread of predictable and/or acceptable quality for the consumer on aspects like for example stability, structure or nutrition, and depends at least in part on the quality of the fat powder itself.
- Another object of the invention is to provide edible fat powders that can be used to make a fat continuous food product with improved properties like spreadibility and/or heat stability and/or hardness, more specifically to make a fat continuous spread, like for example a margarine or low fat spread, with improved properties like spreadibility and/or heat stability and/or hardness.
- the invention relates to an edible fat powder having a specific full width at half maximum of the first order long spacing X-ray diffraction peak and free flowing density.
- the invention also relates to a method of preparing a fat continuous spread comprising the use of such edible fat powder.
- Spreads for example low fat spreads, made with edible fat powders according to the invention have a better structure and/or are more stable, especially when the spread has been subjected to a heat stability test.
- Weight percentage is based on the total weight of the composition unless otherwise stated.
- the terms 'fat' and 'oil' are used interchangeably. Where applicable the prefix 'liquid' or 'solid' is added to indicate if the fat or oil is liquid or solid at ambient temperature as understood by the person skilled in the art.
- the term 'structuring fat' refers to a fat that is solid at ambient temperature. Ambient temperature is a temperature of about 20 degrees Celsius.
- Edible fat powders according to the invention have a full width at half maximum of the first order long spacing X-ray diffraction peak of 0.17 to 0.80 degrees and a free flowing density of 10 to 350 g/l; with the proviso that when the free flowing density is equal to or greater than C, the full width at half maximum is equal to or greater than ((A * free flowing density) + B), wherein A is 0.0005625, B is 0.213 degrees and C is 90 g/l.
- the Full Width at Half Maximum (FWHM) of the first order long spacing X-ray diffraction peak of the edible fat powder according to the invention is derived from the Small Angle X-ray Scattering measurement (SAXS) of the fat powder.
- SAXS Small Angle X-ray Scattering measurement
- the FWHM used is the FWHM that has been corrected for instrumental line broadening. By correcting for the equipment dependent instrumental line broadening the FWHM is made equipment independent. Thus, the FWHM as recited in the claims is the equipment independent FWHM value.
- Instrumental line broadening is accounted for by correcting the measured FWHM of the fat powder with the FWHM of a reference material .
- the FWHM values as measured for the fat powders are corrected by subtracting the FWHM value of the reference material.
- the instrumental line broadening is determined by measuring the 1 1 1 Si reflection of NIST Standard Reference Material 640.
- SAXS Small angle X-ray scattering
- the FWHM is measured on a Bruker D8 Discover X-ray diffractometer with GADDS (General Area Detector Diffraction System) in a theta/theta configuration as described in full in the experimental section.
- GADDS General Area Detector Diffraction System
- the SAXS measurement results in more than one diffraction peak. If this is the case and the diffraction peaks are present as single peaks then the FWHM of each of these peaks is determined. If at least one FWHM complies with the FWHM as claimed the edible fat powder is a fat powder according to the present invention, subject to the required other features. If more than one diffraction peak is present and one peak (partly) overlaps with another peak the SAXS measurement should be repeated on an X-ray system providing more resolution to separate the peaks. For example an X-ray system with a longer sample-detector distance and/or a higher detector resolution and/or a higher brilliance. For example using a synchrotron facility.
- the measuring conditions should be similar to those as described in the experimental section. That is, the measurement must be done in transmission mode at 5 degrees Celsius with a wavelength of 0.15418 nm.
- the X-ray system dependent conditions, such as the required measuring time, are easily determined by the person skilled in the art.
- Edible fat powders according to the invention are powders at a temperature of about 5 degrees Celsius.
- the term 'powder' is defined as generally understood by the skilled person.
- Edible fat powders according to the invention are fat powders suitable for structuring a fat continuous spread.
- the edible fat powder serves to structure the spread by providing at least part of the structuring fat for the spread.
- the fat powder thus comprises structuring fat.
- Structuring fat as commercially available may comprise minor amounts of other components like for example monoglycerides that are naturally present and may likewise be present in the fat powder.
- the edible fat powder may comprise additional components like for example emulsifier or liquid oil.
- additional components like for example emulsifier or liquid oil.
- care must be taken to prevent the properties of the fat powder to be detrimentally affected.
- the presence of liquid oil may affect the ability to form a powder (e.g. may result in a sticky powder or no recognizable powder), depending on the structuring fat and the liquid oil as well as the amounts thereof. It is within the reach of the skilled person to determine without undue burden how much of the additional components may be present using common general knowledge.
- the fat powder As the purpose of the fat powder is to provide structure to the spread it may be preferred not to include too many and/or too much of additional components that do not primarily add to the structuring ability of the fat powder, like for example protein and carbohydrates.
- the fat powder comprises not more than 20 wt% of protein and/or carbohydrates, more preferably not more than 15, even more preferably not more than 10, and still more preferably not more than 5. Most preferably no protein and carbohydrates are present.
- the fat powder comprises structuring fat and preferably comprises at least 80 wt% of structuring fat, more preferably at least 85 wt%, even more preferably at least 90 wt%, still more preferably at least 95 wt% and most preferably at least 98 wt%. Most preferably the edible fat powder essentially consists of structuring fat.
- the structuring fat may be a single fat or a mixture of different fats.
- the structuring fat may be of vegetable, animal or marine origin.
- at least 50 wt% of the structuring fat is of vegetable origin, more preferably at least 60 wt%, even more preferably at least 70 wt%, still more preferably at least 80 wt%, even still more preferably at least 90 wt% and even still more further preferably at least 95 wt%.
- Most preferably the structuring fat essentially consists of structuring fat of vegetable origin.
- the amount of fat powder used is suitably chosen such that the required structuring (i.e. stable emulsion) is obtained. It will be appreciated that the amount of fat powder depends on the amount of structuring fat in the fat powder and the desired amount of structuring fat on total product. Preferably the amount of structuring fat on total amount of product is 1 to 20 wt%, more preferably 2 to 15 wt% and even more preferably 4 to 12 wt%.
- the structuring fat as present in the edible fat powder preferably has a solid fat content N10 from 50 to 100, N20 from 26 to 95 and N35 from 5 to 60.
- Fat powders according to the invention have a full width at half maximum of the first order long spacing X-ray diffraction peak of 0.17 to 0.80 degrees and a free flowing density of 10 to 350 g/l; with the proviso that when the free flowing density is equal to or greater than C, the full width at half maximum is equal to or greater than ((A * free flowing density) + B), wherein A is 0.0005625, B is 0.213 degrees and C is 90 g/l.
- a fat powder with a FWHM of 0.275 and a free flowing density of 64 is a fat powder according the invention.
- the FWHM is from 0.17 to 0.70 degrees, more preferably 0.19 to 0.65, even more preferably 0.21 to 0.60, still more preferably 0.23 to 0.55 and most preferably 0.25 to 0.55, like for example 0.30 to 0.50 or 0.35 to 0.45.
- the free flowing density is from 20 to 300 g/l, more preferably 25 to 250, even more preferably 30 to 200, still preferably 35 to 180 and most preferably 40 to 150 like for example 45 to 140.
- A is 0.0005800, more preferably 0.0006000, even more preferably 0.0006500 and still more preferably 0.0007000.
- Preferably B is 0.220 degrees, more preferably 0.225, even more preferably 0.230, still more preferably 0.240 and most preferably 0.250.
- C is 80 g/l, more preferably 70, even more preferably 60 and still more preferably 50. Most preferably C is 40 g/l or even more most preferably 20 and still more most preferably 0. It is noted that for edible fat powders comprising more than 5 wt% emulsifier C is 50 g/l, preferably 40, more preferably 30, even more preferably 20 and most preferably 0.
- Fat powders according to the invention may be suitably made using Super
- ScMM Critical Melt Micronisation
- PGSS gas saturated solutions
- Suitable fat powders may be prepared using ScMM taking care that the amount of dissolved CO2 is relatively high like for example 20, 25, 30 or 35 wt%. This is a function of the pressure and temperature of the CO2-melt mixture. It is also important to keep the difference between the temperature of the nozzle and the crystallization temperature of the structuring fat close to each other. Furthermore, it is important that enough external cooling gas is used. Keeping this in mind it is within the reach of the skilled person to prepare edible fat powders according to the invention. Further details are given in the experimental section.
- Spreads made with fat powders according to the invention show improved properties like hardness, spreadibility, absence of free water after spreadibility and water droplet size (D3,3).
- the water droplet size of a spread before the heat stability test is preferably below 30 micrometer.
- the water droplet size after the heat stability test should preferably stay below 60 micrometer.
- the invention relates to a method of preparing a fat continuous spread comprising the use of the edible fat powder according to the invention.
- the process for the preparation of an edible fat continuous spread comprising an aqueous phase comprises the steps of: a. mixing fat powder and oil wherein the fat powder comprises structuring fat to provide a slurry; b. providing an aqueous phase; c. mixing the slurry and aqueous phase to form an oil continuous emulsion; wherein the fat powder is edible fat powder according to the invention.
- the slurry is kept at a temperature equal to or below 25 degrees Celsius, and the aqueous phase is cooled prior to mixing to such an extent that the temperature of the mixture of slurry and aqueous phase is kept equal to or below 25 degrees Celsius.
- the spread comprises from 5 to 40 wt% fat, more preferably 10 to 35 and most preferably 15 to 30.
- the oil in the slurry is liquid oil and may be single oil or a mixture of different oils, and may comprise other components.
- at least 50 wt% of the oil (based on total amount of oil) is of vegetable origin, more preferably at least 60 wt%, even more preferably at least 70 wt%, still more preferably at least 80 wt%, even still more preferably at least 90 wt% and even still more further preferably at least 95 wt%.
- the oil essentially consists of oil of vegetable origin.
- the fat powder must be analyzed within 4 weeks after production and must have been stored, if applicable, at a temperature of 5 degrees Celsius or lower.
- the fat powder may not be subjected to temperatures above 5 degrees Celsius to prevent modification of the fat powder.
- the fat powder may not be subjected to extensive vibrations or the like to prevent the free flowing density of the powder to be affected as suitably known to the skilled person. Free flowing density
- the free flowing density of the fat powder is measured according to the following protocol. - A 1000 ml plastic measuring cylinder (width 64 mm, height of the one litre mark is 330 mm), a wide mouth plastic funnel (conical 15 cm, cylindrical 2.5 cm) and a metal scoop are cooled for at least 1 hour at 5 degrees Celsius.
- the cylinder is placed on a balance and the balance is reset to zero.
- the funnel is placed on the cylinder and the fat powder is added till the cylinder is full (i.e. 1000 ml) in about 3 to 4 scoops.
- the cylinder with the fat powder is weighed. This weight is the free flowing density of the fat powder (i.e. the weight of the cylinder with fat powder minus the weight of the empty cylinder).
- the Full Width at Half Maximum (FWHM) of the first order long spacing X-ray diffraction peak of the edible fat powder according to the invention is derived from the Small Angle X-ray Scattering measurement (SAXS) of the fat powder according to the following protocol.
- SAXS Small Angle X-ray Scattering measurement
- the FWHM of the fat powder was measured on a Bruker D8 Discover X-ray diffractometer with GADDS (General Area Detector Diffraction System) (ex Bruker AXS, Delft, NL) (Part No: 882-014900 Serial No: 02-826) in a theta/theta configuration.
- GADDS General Area Detector Diffraction System
- a copper anode was used, and the K- alpha radiation with wavelength 0.15418 nm was selected.
- the X-ray source and the GADDS-detector were positioned at 0 degrees 2 Theta, to realize transmission measurements.
- a lead beam stopper was precisely positioned in the middle and just in front of the detector.
- the fat powder was measured at 5 degrees Celsius using a Linkam temperature stage (model THMS 600, from Linkam Scientific Instruments Ltd, UK).
- the fat powder sample was enclosed by X-ray Mylar film (Chemplex Cat. NO: 100 (2.5 ⁇ m), from Chemplex Industries Inc) in the sample holder of the Linkam stage by using a spacer having a thickness of 2.5 mm and a diameter of 8.5 mm.
- the Linkam stage was modified such that the hole is sufficiently big to allow the diffraction beam to reach the detector.
- the removable tray of the Linkam stage and the spacer were cooled in a refrigerator to 5 degrees Celsius prior to the measurement.
- the spacer was filled at 5 degrees Celsius with fat powder with a metal spatula that was cooled to 5 degrees Celsius prior to use.
- the Linkam stage was positioned on the x,y,z table of the D8 Discover and the liquid nitrogen pump and heating module were placed in the cabinet during measurements.
- the FWHM of the fat powder samples as measured with the Bruker D8 was corrected for instrumental line broadening.
- the correction factor is determined using the FWHM of the 1 1 1 Si reflection of NIST Standard Reference Material 640.
- the correction factor for the Bruker D8 Discover X-ray diffractometer with GADDS as used was determined to be 0.180 degrees.
- Stevens value Stevens values give an indication about the hardness (also called firmness) of a product.
- the Stevens value is determined according to the following protocol.
- Freshly prepared products are stabilized at 5 degrees Celsius.
- the hardness of the product is measured with a Stevens penetrometer (Brookfield LFRA Texture Analyser (LFRA 1500), ex Brookfield Engineering Labs, UK) equipped with a stainless steel probe with a diameter of 6.35 mm and operated in "normal" mode.
- the probe is pushed into the product at a speed of 2 mm/s, a trigger force of 5 gram from a distance of 10 mm.
- the force required is read from the digital display and is expressed in grams.
- a flexible palette knife is used to spread a small amount of the spread on to fat free paper.
- the spreading screen is evaluated according to standardized scaling.
- a score of 1 represents a homogeneous and smooth product without any defects
- a 2 refers to the same product but then with small remarks as slightly inhomogeneous or some vacuoles
- a 3 refers to the level where defects become almost unacceptable, like loose moisture or coarseness during spreading.
- a score of 4 or 5 refers to unacceptable products, where the 4 refers to a product still having some spreading properties, but an unacceptable level of defects.
- indicator paper Wator, ref 906 10, ex Machery-Nagel, DE
- a stable product does not release any water and the paper does not change. Very unstable products release free water easily and this is indicated by dark spots on the paper.
- a six point scale is used to quantify the quality of fat spread (DIN 10 311 ):
- - 0 (zero) is a very stable and good product; - 1 (one) is showing some loose moisture (one or two spots, or the paper changes a little in color as a total);
- the NMR signal (echo height) of the protons of the water in a water -in-oil emulsion are measured using a sequence of 4 radio frequency pulses in the presence (echo height E) and absence (echo height E * ) of two magnetic field gradient pulses as a function of the gradient power.
- the oil protons are suppressed in the first part of the sequence by a relaxation filter.
- a Bruker magnet with a field of 0.47 Tesla (20 MHz proton frequency) with an air gap of 25 mm is used (NMR Spectrometer Bruker Minispec MQ20 Grad, ex Bruker Optik GmbH, DE).
- the droplet size of the spread is measured, according to the above described procedure, of a spread stabilized at 5 degrees Celsius right after production for one week. This gives the D3,3 after stabilization at 5 degrees Celsius.
- the tube containing the small amount of product, 0.66 gram, is then stored for about 20 hours at 30 degrees Celsius, followed by stabilizing at 5 degrees Celsius for at least one hour.
- the droplet size is then measured to give the D3,3 after heat stability test at 30 degrees Celsius and re-stabilization at 5 degrees Celsius.
- the solid fat content (SFC) in this description and claims is expressed as N- value, as defined in Fette, Seifen Anstrichstoff 80 180-186 (1978).
- the stabilization profile applied is heating to a temperature of 80 degrees Celsius, keeping the oil for at least 10 minutes at 60 degrees Celsius or higher, keeping the oil for 1 hour at 0 degrees Celsius and then 30 minutes at the measuring temperature.
- Moisture Content in Fat Spreads The moisture content is measured by evaporation of the water at elevated temperature.
- a Moisture Analyzer type HB43-S (ex Mettler-Toledo GmbH, Laboratory & Weighing Technologies, CH) is used.
- the moisture content is determined from the weight loss of a sample dried by heating with a halogen heating module.
- the sample is about 1 -2 gram of product in an aluminum pan with a bed of silver sand of about 3-4 gram and is covered with filter paper.
- Figure 1 is a schematic representation of the set up for the continuous production of edible fat powder as used for the preparation of examples 1 to 4 and 13 and comparative examples C-1 to C-4 and C-13.
- Set-up A consists of an inlet for molten fat (7) and an inlet for supercritical CO2 (6) leading into a static mixer (8) (Sulzer SMX DN10 with 11 elements) to provide a CO2-melt mixture that is subsequently cooled in a heat exchanger (9) to the desired temperature-pressure conditions at pressure swirl nozzle (2) (SK series "SprayDry®” nozzle, for orifice and core see Table 2B, ex Spray Systems).
- the fat is drawn from a thermo-stated storage tank with a Lewa membrane pump equipped with food-grade oil.
- a similar pump is used to draw liquid CO2 from a storage tank at low temperature.
- the temperature at which the liquid CO2 is pumped should be low enough to avoid cavitation in the pump.
- the CO2 is heated to the same temperature as the fat in a tubular heat exchanger.
- the CO2-melt mixture is sprayed into expansion vessel (1 ) via nozzle (2).
- the expansion vessel is thermally insulated and is essentially at atmospheric pressure.
- the top section has a diameter of 35 cm and a height of 18 cm.
- the cylindrical middle section has a diameter of 55 cm and a height of 81 cm.
- the conical bottom section has a height of 36 cm and is converging to an opening of diameter 15 cm, which can be closed with a simple valve when a full powder collection drum (5) has to be replaced with an empty one without interrupting the process.
- An additional stream of CO2 cooling gas (3) is fed into the expansion vessel from behind the nozzle. Its flow rate has to be chosen such that the desired final temperature of the powder is reached.
- the gas leaves the expansion vessel via a fine grid (4) of height 23 cm along the circumference of the vessel just above the conical part.
- the grid is covered with a filter cloth that retains the powder without clogging too fast.
- the tubing (10) connecting the parts up to the nozzle has an internal diameter of 9.5 mm.
- the length between the static mixer and the nozzle is about 4 meter.
- the fat mix used in examples 1 to 4 and comparative examples C-1 to C-4 is a mix of 85.7 wt% of inES48 and 14.3 wt% of Dimodan HP.
- inES48 is an interesterified mixture of 65% dry fractionated palm oil stearin with an Iodine
- Dimodan HP is a molecularly distilled mono/diacylglyceride mixture derived from fully hardened palm oil (90% monoglyceride) ex Danisco. This fat mix makes up the molten fat as used above.
- the fat used in example 13 and comparative example C-13 is inES48.
- a - Orifice insert diameter (mm) B - Orifice insert size No. C - Core size No.
- Figure 2 is a schematic representation of the set up for the batch wise production of edible fat powder as used for the preparation of examples 5 and 6 and comparative example C-5 and C-6.
- Set-up B consists of an autoclave (16) with a content of 600 ml (Premex Reactor AG HPM-PT-060, Wno. 14571 , Art no. PT.060.462.45, ex Premex, CH) equipped with a mechanical stirrer (17) (six blade propeller stirrer, length 10.6 cm, 1 cm x 1 cm blades of 1.5 mm thick).
- the autoclave has connections at the top and at the bottom. The top connection (18) was used to pressurize the system with CO2.
- the mixture from the vessel is expelled from the bottom of the autoclave via tube (20) through valve (19) over nozzle (12) (orifice 0.34 mm SIA80 / core SKA16 / cap CPP37729-SS, ex Spraying Systems, Ridderkerk, NL) to about atmospheric pressure in an expansion vessel (11 ) (main section: height 26.1 cm and diameter 60 cm, conical bottom part: height 37 cm and diameter from 60 cm to 15 cm).
- the dimensions of the tube between the bottom of the autoclave and the nozzle are (3 cm vertical, 20 cm horizontal, 3 cm vertical, 4 mm inner diameter, 6 mm outer diameter).
- the autoclave is heated with an oil bath with heat transfer fluid.
- Tube (20) and nozzle (12) are kept at the desired temperature by heating tape (1.5 meters / 5 mm wide lsopad SiS-10 CE/SN:02401022774 / PN:328552-000, from lsopad BV/Tyco Thermal, Wijk bij Duurstede, NL) using a Thyhstor to adjust the temperature of the heating tape.
- the expansion vessel is cooled with additional CO2 over inlet (13).
- a small barrel (15) (15 liters, model 729348-90, from Vink, Lisse, NL) for collection of the sprayed powder is mounted at the bottom of the expansion vessel.
- the gas in the expansion vessel leaves the vessel via a tube shaped membrane filter
- the system i.e. autoclave
- the temperature of tube (20) and nozzle (12) was set at a temperature above the melting temperature of the fat mixture using the Thyristor.
- the fat mixture (297 gram) was melted and the melted fat mixture was then poured into the autoclave.
- the autoclave was closed and the mixture was stirred with the mechanical stirrer at the desired speed.
- Liquid CO2 was added over connection (18) in steps of 30 bar till the desired working pressure is reached and the system was left till a steady state condition was reached (i.e. constant pressure and temperature, see Table 4).
- the expansion vessel was cooled to the desired temperature with CO2 gas over inlet (13).
- the CO2-melt mixture was expanded (i.e.
- the FWHM and free flowing density were determined according to the method as described above.
- inES44 is an interesterified blend of 60 wt% palm kernel oil hardened to a slip melting point of 39 degrees Celsius and 40 wt% palm oil hardened to a slip melting point of 58 degrees Celsius.
- PO58 is palm oil hardened to a slip melting point of 58 degrees Celsius.
- a - Autoclave mixing speed (rpm), temperature (degrees Celsius), pressure (bar)
- Starch A Purity SUV, modified tapioca starch (distarch phosphate) ex National
- Starch B Merigel 341 , modified pre-gelled waxy corn starch (hydroxypropyl distarch) ex Tate & LyIe Europe (pre-gelled starch, needs to be dispersed at 40 to 50 degrees Celsius at low shear)
- Gelatin pig skin gelatine, bloom 240-265, 20 mesh, ex Gelita, DE
- Dimodan HP molecularly distilled mono/diacylglycehde mixture derived from fully hardened palm oil (90% monoglyceride) ex Danisco, DK
- the oil was weighed and pre-cooled to 5 degrees Celsius in an Esco-Labor (ESCO-Vacuum mixer processing plant Type EL3 with 4.5 liter vessel in pharmaceutical version, ex ESCO-Labor AG, CH).
- the powder was weighed using a pre-cooled (5 degrees Celsius) vessel and scoop, and added to the oil in several steps via a funnel on top of the Esco-Labor.
- the powder was sucked stepwise into the oil using vacuum. After each step a valve under the funnel was closed and the pressure dropped significantly.
- the density of the final slurry was measured to check if the de-aeration process was completed.
- Colorant and flavor were added to the slurry as prepared above and the slurry was brought into the fat feed tank of the spreads production line.
- the fat feed tank is a double walled stainless steel vessel with an internal diameter of 125 mm and a height of 310 mm, equipped with a ribbon stirrer, pushing the product downwards to the outlet opening in the bottom of the tank.
- the tank is thermo-stated at 5 degrees Celsius.
- Aqueous phase The aqueous phase was prepared by mixing two phases (I) and (II).
- Phase I being a mixture of about 80% of the water and the starch was prepared in the standard way and cooled to 50 degrees Celsius.
- Phase Il being a mixture of the remainder of the water, salt, potassium sorbate, gelatin and butter milk powder, was prepared at 50 degrees Celsius and subsequently pasteurized at 75 degrees for 10 minutes. The two phases were mixed and the pH adjusted to the desired pH with a 20% citric acid solution.
- the aqueous feed tank is a double walled stainless steel vessel with an internal diameter of 175 mm and a height of 250 mm, equipped with an agitator (gate-stirrer type), thermo-stated at 5 degrees Celsius.
- the fat feed tank and the aqueous feed tank feed via a junction point into a 50 ml double walled stainless steel pin stirrer, with two rows of 4 stator and rotor pins.
- the slurry phase was pumped into this system including the pin stirrer to fill it completely. Then both phases were pumped into the system at the required ratio using 2 gear pumps. After the junction point the mixture is pumped at about 12 kg/h, using a third gear pump, into the pin stirrer, which results in a residence time of 15 seconds in the stirrer.
- the pin stirrer is thermo-stated at 8°C and operated at 2800 rpm.
- the final product was filled into 150 ml plastic tubs and stored at 5 degrees Celsius.
- the gelatine was added to aqueous phase I instead of aqueous phase II.
- aqueous phase II After preparing the aqueous phase II, a solution of Dimodan HP in sunflower oil was added, and the mixture was stirred using an Ultraturrax stirrer for 15 min at 7600 rpm. Then aqueous phase I was added and mixed at low shear. Finally, the pH was adjusted. The aqueous phase was not pasteurized.
- the fat feed tank was thermo-stated at 8 degrees Celsius for example 11 and comparative example C-11 ; and at 12.5 degrees Celsius for example 12.
- the pin stirrer operated at 2000 rpm.
- the aqueous feed tank was thermo-stated at 60 degrees Celsius. During the spreads production the aqueous phase was pumped first through a tubular heat exchanger, cooled at 1.5 degrees Celsius, to get a temperature drop from 60 to about 6-8 degrees Celsius, just before the junction point.
- Table 8 Spreads processing conditions for examples 7 to 10 and 14 and comparative examples C-7 to C-10 and C-14.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EA201100983A EA201100983A1 (en) | 2008-12-19 | 2009-12-01 | Edible fatty powders |
US13/133,954 US8865245B2 (en) | 2008-12-19 | 2009-12-01 | Edible fat powders |
AU2009328392A AU2009328392B2 (en) | 2008-12-19 | 2009-12-01 | Edible fat powders |
EP09760887.1A EP2367434B8 (en) | 2008-12-19 | 2009-12-01 | Edible fat powders |
BRPI0916502-9A BRPI0916502B1 (en) | 2008-12-19 | 2009-12-01 | "EDIBLE FAT POWDER AND METHOD FOR THE PREPARATION OF A CONTINUOUS FAT PASTE" |
MX2011006423A MX2011006423A (en) | 2008-12-19 | 2009-12-01 | Edible fat powders. |
CA2747088A CA2747088C (en) | 2008-12-19 | 2009-12-01 | Edible fat powders |
ZA2011/03713A ZA201103713B (en) | 2008-12-19 | 2011-05-20 | Edible fat powders |
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EP08172304.1 | 2008-12-19 | ||
EP08172304 | 2008-12-19 |
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WO2010069746A1 true WO2010069746A1 (en) | 2010-06-24 |
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PCT/EP2009/066093 WO2010069746A1 (en) | 2008-12-19 | 2009-12-01 | Edible fat powders |
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US (1) | US8865245B2 (en) |
EP (1) | EP2367434B8 (en) |
AU (1) | AU2009328392B2 (en) |
BR (1) | BRPI0916502B1 (en) |
CA (1) | CA2747088C (en) |
EA (1) | EA201100983A1 (en) |
HU (1) | HUE033526T2 (en) |
MX (1) | MX2011006423A (en) |
PL (1) | PL2367434T3 (en) |
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Also Published As
Publication number | Publication date |
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AU2009328392A1 (en) | 2010-06-24 |
US20110244111A1 (en) | 2011-10-06 |
EP2367434A1 (en) | 2011-09-28 |
EP2367434B8 (en) | 2017-07-26 |
CA2747088C (en) | 2016-10-18 |
ZA201103713B (en) | 2012-07-25 |
PL2367434T3 (en) | 2017-09-29 |
EP2367434B1 (en) | 2017-03-29 |
HUE033526T2 (en) | 2017-12-28 |
US8865245B2 (en) | 2014-10-21 |
CA2747088A1 (en) | 2010-06-24 |
MX2011006423A (en) | 2011-07-20 |
BRPI0916502B1 (en) | 2017-09-12 |
BRPI0916502A2 (en) | 2015-08-04 |
EA201100983A1 (en) | 2011-12-30 |
AU2009328392B2 (en) | 2013-08-22 |
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