GB2536409B - Snack food pellets - Google Patents
Snack food pellets Download PDFInfo
- Publication number
- GB2536409B GB2536409B GB1503244.4A GB201503244A GB2536409B GB 2536409 B GB2536409 B GB 2536409B GB 201503244 A GB201503244 A GB 201503244A GB 2536409 B GB2536409 B GB 2536409B
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- GB
- United Kingdom
- Prior art keywords
- starch
- micropellets
- different
- expanded
- continuous
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/161—Puffed cereals, e.g. popcorn or puffed rice
- A23L7/165—Preparation of puffed cereals involving preparation of meal or dough as an intermediate step
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
- A23L19/10—Products from fruits or vegetables; Preparation or treatment thereof of tuberous or like starch containing root crops
- A23L19/12—Products from fruits or vegetables; Preparation or treatment thereof of tuberous or like starch containing root crops of potatoes
- A23L19/18—Roasted or fried products, e.g. snacks or chips
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/117—Flakes or other shapes of ready-to-eat type; Semi-finished or partly-finished products therefor
- A23L7/13—Snacks or the like obtained by oil frying of a formed cereal dough
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
- A23L7/161—Puffed cereals, e.g. popcorn or puffed rice
- A23L7/165—Preparation of puffed cereals involving preparation of meal or dough as an intermediate step
- A23L7/17—Preparation of puffed cereals involving preparation of meal or dough as an intermediate step by extrusion
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- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Confectionery (AREA)
Description
Snack Food Pellets
The present invention relates to snack food pellets and to a method of manufacturing snack food pellets. The present invention also relates to a snack food produced from the snack food pellets.
The manufacture of snack food pellets is well known. Dried pellets are produced by an extrusion process with a subsequent drying step. The pellets are then cooked, for example by frying in oil, which causes expansion the pellets to form an expanded snack food of a desired shape and configuration. Various compositions of snack food pellets are known.
The product design of snack food pellets made by conventional means is constrained by the correlation of certain product attributes which are affected by changes in composition or process variables. For example, increased starch gelatinization can deliver a more aerated structure through increased pellet expansion and a softer, more melting texture; there can be limitations should the snack food pellet be intended to produce a more expanded product with a harder, crunchy texture.
Furthermore, pellets expanded by means other than frying in oil commonly have a smooth, shiny surface appearance, which is typically regarded as unattractive or artificial by consumers. The shiny surface can also lead to difficulties in applying controlled quantities of topical oil and seasoning powder to the expanded product.
In addition, the conventional pellet production process, incorporating extrusion of a homogeneous mass, yields highly homogeneous products.
The present invention aims at least partially to solve these problems of known snack food pellets and their manufacture.
The present invention accordingly provides a method of producing a snack food as recited in claim 1.
Preferred features of all of these aspects of the present invention are defined in the dependent claims.
The preferred embodiments of the present invention can provide a modified pellet design which can be expanded to form a snack food, for example a chip, exhibiting localised variations in texture and/or colour and/or flavour across the product surface or internally, which can offer to the consumer a more natural, ‘home baked’ character to the expanded product as compared to currently available expanded snack chips produced from pellets.
In preferred embodiments of the present invention there is provided a modified pellet design in which smaller fragments of pre-processed pellets, referred to herein as micropellets, are incorporated into the pellet structure in a way that delivers localised property variations that are discrete from the continuous phase of the pellet. Such a heterogeneous pellet structure employs a two-step process, a first step to produce the micropellets and a second step to produce pellets incorporating the micropellets. These two steps may be entirely independent from the other, for example the two micropellet- and pellet-forming steps may be executed at completely separate locations and/or at different times.
The micropellets to form inclusions may be manufactured using standard pellet production technology to manufacture micropellets from a range of potential raw materials, typically including a high starch component (e.g. cereals, potato, etc.). The micropellet is extruded, and optionally the end faces of the extrusion are cut. The micro pellets typically have a size which is less than 5mm in diameter. The micropellets are then dried under controlled temperature and humidity to achieve a moisture content of from 8 to 14 wt% based on the weight of the micropellet. The resulting micropellets are stable in ambient storage conditions for several months.
The final pellet is manufactured by combining micropellets from the first production step into a mix of dry materials to be used to produce the continuous phase of the final pellet. The pellet dough is formed using a low-shear, low-temperature extrusion press for producing pellets. Such apparatus is generally known in the art of manufacturing snack foods. The extrusion press has a relatively open slot die at the product exit, and the opening aperture of slot die is greater than the diameter of the inclusion micropellets. A high open area of the die aperture prevents pressure build-up within the extrusion barrel, which could otherwise cause breakdown of the micropellet structure. The thickness of the extruded pellet may be adjusted, as appropriate, through the use of various post-extrusion methods, for example stretching of the pellet, compression of the pellet using compression rollers and/or embossing of the pellet using embossing rollers. The pellets are finally dried under controlled temperature and humidity to a moisture content of from 8 to 14 wt% based on the weight of the pellet.
The resultant product is a pellet containing inclusions of a different pellet, in the form of micropellets. This provides a wide variety of possibilities to optimise the snack food product design by affecting, for example, one or more of: the ingredient composition of the inclusion micropellet; the size and size distribution of the inclusion micropellets; the use of mixtures of different micropellets; the incorporation of colour and/or flavour components in micropellets; the use of varied dosages of inclusion micropellets; the ingredient composition of the continuous pellet phase.
The pellet may include discrete regions within the pellet comprising different starch components. Pellets are conventionally formulated to include starch-containing ingredients, such as potato and cereals, for example wheat, maize, rice, oats, barley, etc. Other cereal crops could be used, as well as starch from pulses, legumes, cassava, etc. The starch-containing ingredients may be added as whole foods (e.g. potato flakes/granules; wheat flour) or as refined/isolated constituents (e.g. potato starch). The ingredients may be used individually or in combination with other starch-containing ingredients. The functionality of these ingredients in the manufacture of snack food products may be further manipulated by control over the manufacturing process (e.g. by controlling the degree of starch gelatinization) either as individual ingredients before pellet manufacture or during the pellet manufacturing process. The structure and texture of the snack food product after expansion is strongly influenced by the nature and composition of the starch-containing ingredients.
Using this invention, the nature and composition of the starch-containing ingredients can be independently controlled in the inclusion micropellets and the continuous phase of the final pellet in order to produce final pellets in which the inclusion micropellets and final pellet continuous phase are comprised of different starch-containing ingredients or different combinations of starch-containing ingredients, and optionally the inclusion micropellets and final pellet continuous phase contain starches that have been processed to a different degree or extent (e.g. different degrees of gelatinization).
The size of the inclusion micropellets is dependent on the selected apparatus and process used to manufacture the micropellets. The properties of the final pellet continuous phase would affect the capacity to contain micropellets during pellet manufacture and subsequent use. The inclusion micropellets have a size range of diameter 1mm to 5mm.
The percentage of inclusion micropellets by weight that can be used is likely to be dependent on the properties of the final pellet continuous phase and the capacity of the continuous phase to contain micropellets during pellet manufacture and subsequent expansion.
The pellet may include discrete regions within the pellet, with the regions having different moisture contents. Standard snack pellets typically contain moisture at a level of from 8 to 14 wt% based on the weight of the pellet. The moisture content of both the inclusion micropellets and the final pellet continuous phase fall within the range of standard snack pellets, i.e. at a level of from 8 to 14 wt% based on the weight of the respective micropellet and the continuous phase.
The pellet may include discrete regions within the pellet, with the regions having different colour and/or flavor. In addition to the major starch-containing components included in the pellet and micropellet composition, minor ingredients can be used to impart colour and/or flavour to the finished product. Examples of such ingredients include, but are not limited to, flavouring/seasoning preparations, spices, natural and artificial colourings, herbs, and reaction flavour precursors, or any combination thereof. There may be provided a distinction between the inclusion micropellets and final pellet continuous phase which may be based on the presence or absence of colouring and/or flavouring components, or their inclusion at contrasting levels.
The pellet may include discrete regions within the pellet, with the regions having different structural properties. Certain aspects of the pellet performance during the expansion step can be influenced by the internal structure of the pellet, for example the degree of porosity, the density, etc. The distinction between the inclusion micropellets and final pellet continuous phase may be based on differences in pellet structure, such as internal porosity, open volume, density, etc. The pellet may include discrete regions within the pellet with other compositional differences, for example provide advantageous properties and characteristics in the expanded product. Such differences may include the presence/absence, or different application dosages, of constituents such as sugars, raising agents, salts, emulsifiers, fats/oils, humectants, acids, bases, proteins, fibres, dairy ingredients, texture modifiers, acidity regulators or any combination thereof.
Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, in which:
Figure 1 schematically illustrates a cross-section through a snack food pellet in accordance with an embodiment of the present invention;
Figure 2 schematically illustrates an apparatus for manufacturing a snack food pellet in accordance with another embodiment of the present invention; and
Figure 3 schematically illustrates a perspective cross-section through an expanded snack food piece, in the form of a chip, in accordance with a further embodiment of the present invention.
Referring to Figure 1 of the accompanying drawings, a snack food pellet 2 comprises a continuous starch-based matrix 4 and a plurality of starch-based micropellets 6 dispersed as inclusions in the continuous matrix 4.
The continuous starch-based matrix 4 comprises at least one starch derived from of a cereal or a vegetable, optionally potato. The starch-based micropellets 6 comprise at least one starch derived from of a cereal or a vegetable, optionally potato.
The micropellets 6 have been manufactured using an extruder as generally described below with reference to Figure 3 which discloses a corresponding extrusion for the manufacture of the resultant extruded pellets 2.
The micropellets 6 have a maximum dimension of from 1 to 5 mm. The continuous starch-based matrix 4 and the starch-based micropellets 6 have different compositions different starches and at least one different starch-containing ingredient. Optionally, the continuous starch-based matrix 4 and the starch-based micropellets 6 have at least one of: a different colour; a different flavour; a different level of starch gelatinization; a different internal porosity; a different open volume; a different density; a different moisture content; and a different shape, or any combination of any two or more thereof.
The snack food pellet 2 comprises from 70 to 90 wt% continuous starch-based matrix 4 and from 10 to 30 wt% starch-based micropellets 6 each weight being based on the total weight of the continuous starch-based matrix 4 and the starch-based micropellets 6. The continuous starch-based matrix 4 has a moisture content of from 8 to 14 wt% based on the weight of the continuous starch-based matrix 4 and the starch-based micropellets 6 also have a moisture content of from 8 to 14 wt% based on the weight of the starch-based micropellets 6. This provides an overall moisture content in the pellet 2 of from 8 to 14 wt% based on the weight of the pellet 2.
Referring to Figure 2 of the accompanying drawings, in the method of manufacturing the snack food pellet 2, pellets 2 are extruded through an extrusion die 16 of an extruder 8. A starch- based mixture is provided and fed from a matrix mixture supply 12 into a mixer 10 located at the upstream end of the extruder 8. A plurality of starch-based micropellets 6 is fed from a micropellet supply 14 into the mixer 10. A dough is formed in the mixer 10 which comprises the micropellets dispersed as inclusions in the starch-based mixture. The dough is extruded from the extruder 8 to form the pellets 2 comprising the continuous starch-based matrix 4 formed from the starch-based mixture with the starch-based micropellets 6 dispersed therein. The pellets 2 may be collected in a hopper 18.
The thickness of the pellets 2 may additionally be modified after the extrusion step, for example by at least one of stretching, compressing, or embossing the pellets 2. After the extrusion step, and the optional thickness modification, the pellets 2 are dried to provide that the continuous starch-based matrix 4 has a moisture content of from 8 to 14 wt% based on the weight of the continuous starch-based matrix 6 and that the starch-based micropellets 6 have a moisture content of from 8 to 14 wt% based on the weight of the starch-based micropellets 6.
Typically, the dough is formed by mixing the micropellets 6 into the starch-based mixture at a temperature of from 20 to 80 °C and/or at a shear rate of from 1.0 to 2.5 s'1. Typically, the dough comprising micropellets 6 dispersed therein is extruded at a temperature of from 5- to 130 °C and/or at a shear rate of from 0.2 to 1.5 s'1. Typically, the extrusion die 16 has an aperture of which a minimum dimension is greater than a maximum dimension of the micropellets 6.
In the method of producing a snack food, a plurality of the pellets 2 are expanded during a known cooking step to produce a plurality of snack food pieces. The cooking step may comprise frying, baking or microwaving.
Referring to Figure 3 of the accompanying drawings, the resultant expanded snack food piece 20 comprises a continuous starch-based expanded matrix 22 and a plurality of starch-based expanded inclusions 24 dispersed in the continuous expanded matrix 22.
The expanded inclusions 24 have a maximum dimension of from 3 to 7 mm. The expanded matrix 22 and the expanded inclusions 24 have different compositions, different starches and different starch-containing ingredients. Optionally, the expanded matrix 22 and the expanded inclusions 24 have at least one of: a different colour; a different flavour; a different level of starch gelatinization; a different internal porosity; a different open volume; a different density; a different moisture content; and a different shape, or any combination of any two or more thereof.
The expanded snack food piece 20 typically comprises from 50 to 95 wt% expanded matrix 22 and from 5 to 50 wt% expanded inclusions 24, for example from 70 to 90 wt% expanded matrix 22 and from 10 to 30 wt% expanded inclusions 24, each weight being based on the total weight of the expanded matrix 22 and the expanded inclusions 24.
The pellet 2 may be shaped and dimensioned to provide any desired shape and dimensions to the resultant expanded snack food piece 20 using shape and dimension selection techniques well known to those skilled in the snack food art.
Various other modifications to the present invention will be readily apparent to those skilled in the art.
Claims (18)
1. A method of producing a snack food, the method comprising the steps of: i. providing a starch-based mixture; ii. providing a plurality of starch-based micropellets; iii. forming a dough comprising the micropellets dispersed as inclusions in the starch-based mixture; and iv. extruding the dough to form pellets; and v. drying the pellets, wherein the pellets comprise from 70 to 90 wt% of a continuous starch-based matrix formed from the starch-based mixture with from 10 to 30 wt% of the starch-based micropellets dispersed therein, each weight being based on the total weight of the continuous starch-based matrix and the starch-based micropellets, wherein the continuous starch-based matrix and the starch-based micropellets have different compositions, different starches and different starch-containing ingredients, and the micropellets have a maximum dimension of from 1 to 5 mm, wherein the continuous starch-based matrix has a moisture content of from 8 to 14 wt% based on the weight of the continuous starch-based matrix and the starch-based micropellets have a moisture content of from 8 to 14 wt% based on the weight of the starch-based micropellets; and vi. expanding the pellets during a cooking step to produce a plurality of snack food pieces, wherein the expanded snack food piece comprises a continuous starch-based expanded matrix and a plurality of starch-based expanded inclusions dispersed in the continuous expanded matrix and wherein the expanded inclusions have a maximum dimension of from 3 to 7 mm.
2. A method according to claim 1 wherein the continuous starch-based matrix comprises at least one starch derived from of a cereal or a vegetable.
3. A method according to claim 2 wherein the continuous starch-based matrix comprises at least one starch derived from potato.
4. A method according to any one of claims 1 to 3 wherein the starch-based micropellets comprise at least one starch derived from of a cereal or a vegetable.
5. A method according to claim 4 wherein the starch-based micropellets comprise at least one starch derived from potato.
6. A method according to any one of claims 1 to 5 wherein the continuous starch-based matrix and the starch-based micropellets have at least one of: a different colour; a different flavour; a different level of starch gelatinization; a different internal porosity; a different open volume; a different density; a different moisture content; and a different shape, or any combination of any two or more thereof.
7. A method according to any one of claims 1 to 6 further comprising the step, after step iv, of modifying a thickness of the pellets.
8. A method according to claim 7 wherein the modifying step comprises at least one of stretching, compressing, or embossing the pellets.
9. A method according to any one of claims 1 to 8 wherein in step iii the dough is formed by mixing the micropellets into the starch-based mixture at a temperature of from 20 to 80 °C.
10. A method according to any one of claims 1 to 9 wherein in step iii the dough is formed by mixing the micropellets into the starch-based mixture at a shear rate of from 1.0 to 2.5 s'1.
11. A method according to any one of claims 1 to 10 wherein in step iv the dough comprising micropellets dispersed therein is extruded at a temperature of from 50 to 130 °C.
12. A method according to any one of claims 1 to 11 wherein in step iv the dough comprising micropellets dispersed therein is extruded at a shear rate of from 0.2 to 1.5 s'1.
13. A method according to any one of claims 1 to 12 wherein in step iv the dough comprising micropellets dispersed therein is extruded through an extrusion die having an aperture, a minimum dimension of the aperture being greater than a maximum dimension of the micropellets.
14. A method according to any preceding claim wherein the cooking step comprises frying, baking or microwaving.
15. A method according to any preceding claim wherein the expanded matrix comprises at least one starch derived from of a cereal or a vegetable.
16. A method according to claim 15wherein the expanded matrix comprises at least one starch derived from potato.
17. A method according to any preceding claim wherein the expanded inclusions comprise at least one starch derived from of a cereal or a vegetable.
18. A method according to claim 18 wherein the expanded inclusions comprise at least one starch derived from potato.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1503244.4A GB2536409B (en) | 2015-02-26 | 2015-02-26 | Snack food pellets |
PCT/EP2016/054085 WO2016135292A1 (en) | 2015-02-26 | 2016-02-26 | Expanded snack food |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1503244.4A GB2536409B (en) | 2015-02-26 | 2015-02-26 | Snack food pellets |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201503244D0 GB201503244D0 (en) | 2015-04-15 |
GB2536409A GB2536409A (en) | 2016-09-21 |
GB2536409B true GB2536409B (en) | 2019-10-30 |
Family
ID=52876173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1503244.4A Active GB2536409B (en) | 2015-02-26 | 2015-02-26 | Snack food pellets |
Country Status (2)
Country | Link |
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GB (1) | GB2536409B (en) |
WO (1) | WO2016135292A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2559557A (en) * | 2017-02-08 | 2018-08-15 | Frito Lay Trading Co Gmbh | Snack food pellets |
GB2567612B (en) * | 2017-05-31 | 2020-05-20 | Frito Lay Trading Co Gmbh | Manufacture of snack food pellets |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130273209A1 (en) * | 2012-04-13 | 2013-10-17 | Frito-Lay North America, Inc. | Bi-Colored Random Collets and Methods for Making Same |
US20130273219A1 (en) * | 2012-04-13 | 2013-10-17 | Frito-Lay North America, Inc. | Micropellets of Fine Particle Nutrients and Methods of Incorporating Same into Snack Food Products |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1252846B (en) * | 1991-10-14 | 1995-06-28 | Pavan Mapimpianti Spa | PROCESS FOR THE MANUFACTURE OF PRELELATINIZED STRIPED PELLETS OF POTATO AND / OR CEREALS, AND PRELELATINIZED STRIPED PELLETS SO OBTAINED |
US5240731A (en) * | 1992-06-24 | 1993-08-31 | General Mills, Inc. | Apparatus and methods for recouping scrap dough material |
US6224933B1 (en) * | 1999-11-05 | 2001-05-01 | Recot, Inc. | Process for expanded pellet production |
US20070243301A1 (en) * | 2006-04-14 | 2007-10-18 | Barnett Michelle L | Process for Producing Rice-Based Expandable Pellets and Cracker-Like Snacks |
PE20142397A1 (en) * | 2012-06-05 | 2015-01-23 | Intercontinental Great Brands Llc | PRODUCTION OF SHREDDED PRODUCTS WITH INCLUSIONS |
-
2015
- 2015-02-26 GB GB1503244.4A patent/GB2536409B/en active Active
-
2016
- 2016-02-26 WO PCT/EP2016/054085 patent/WO2016135292A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130273209A1 (en) * | 2012-04-13 | 2013-10-17 | Frito-Lay North America, Inc. | Bi-Colored Random Collets and Methods for Making Same |
US20130273219A1 (en) * | 2012-04-13 | 2013-10-17 | Frito-Lay North America, Inc. | Micropellets of Fine Particle Nutrients and Methods of Incorporating Same into Snack Food Products |
Also Published As
Publication number | Publication date |
---|---|
GB2536409A (en) | 2016-09-21 |
WO2016135292A1 (en) | 2016-09-01 |
GB201503244D0 (en) | 2015-04-15 |
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