AI SearchModification of low amylose rice flour and starch by extrusion cooking and drum drying (Record no. 78165)
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| 000 -LEADER | |
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| fixed length control field | 06637nas|a2200433 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818155655.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 050805s2004 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b1196750x |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Diss. no.PH-04-02 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Panuwat Supprung |
| 245 10 - TITLE STATEMENT | |
| Title | Modification of low amylose rice flour and starch by extrusion cooking and drum drying |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2004 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 139 p. : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Dissertation ; |
| Volume/sequential designation | no. PH-04-02 |
| 500 ## - GENERAL NOTE | |
| General note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Technical Science |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In this study, low amylose rice flour and starch were physically modified into pregelatinized flour and starch powder form through extrusion cooking and drum drying processes. The effects of processing conditions on of rice flour and starch were investigated, and the possible meaningful correlation between process parameters and functional properties in the form of predictive models for general application were established. Thai aromatic rice (variety: KDML 105) flour was prepared from broken rice by wet milling method and rice starch was prepared by alkaline method. Effects of single screw extrusion operating conditions namely barrel temperature (140-200°C), screw speed (150-250 rpm) and feed moisture content ( 16 to 28 % wb) on the expansion ratios (ER), initial peak viscosity (IPV), water absorption index (W Al), water solubility index (WSI) and degree of gelatinization (DG) of rice flour and starch extrudate were investigated. Result showed that high feed moisture content of flour and starch led to a decrease in ER and WSI and an increase in IPV, WAI and DG. Barrel temperature and screw speed had no significant effect on all properties. The ER, DG, WSI and WAI of extruded starch were slightly higher than flour, but IPV of extruded starch was lower. All functional properties of extruded flour and starch were highly correlated (R2 =0.737 to 0.949) with the extrusion cooking conditions in terms of feed moisture content, barrel temperature and screw speed. Double drum dryer was used to produce pregelatinized flour and starch. The effects of drying conditions including solid content of slurry (20-40 o/ow/w), holding time (14- 84sec) and surface temperature (115-135°C) were also investigated. Results revealed that moisture content (MC), WAI, WSI, DG and IPV values of high solid content led to a decrease in holding time and resulted in a decrease in WAI, IPV and DG while MC and WSI increased. High surface temperature led to a slight decrease in IPV values. The DG, WAI and WSI values of drum dried flour were lower than that of dried starch but IPV value was higher. All functional properties of drum dried flour and starch were highly correlated (R2 =0.683 to 0.926) with the solid content, holding time and surface temperature. The product properties of both methods, extruded flour and starch showed lower WAI and IPV values than drum dried samples, whereas the WSI value was higher. The DG values of drum dried samples was a nonsignificantly higher than those of the extruded samples. Scanning electron micrographs showed that the particles of extruded starch powder had complex forms with surface cracks. Drum dried starch particles looked like flakes and the shape was not uniform. Drum drying improved the freeze-thaw stability of sample paste, however this property was the opposite for extruded samples. The WAI of pregelatinized flour and starch for difference water temperature of 25, 45, 65 and 85°C showed that as the temperature increased, the WAI of drum dried flour and starch increased whereas WAI of native samples increased at temperature above 45°C. In contrast, WAI of both extruded samples decreased whereas WSI increased markedly with increasing cooking temperature. High temperature induced stronger pseudoplastic behavior of pregelatinized starch pastes and showed poor freeze-thaw stability. The effects of the addition of sugar (10 to 50 o/ow/v), lipid (0.07 to 0.98 % w/v) and protein (5 to 40 % w/w) were also investigated. WAI of native and pregelatinized flour and starch decreased slightly with an increase in the sugar, lipid and protein concentration. The IPV of pregelatinized flour and starch showed viscosity development with an increase in the sugar lll and protein concentrations. Consistency of drum dried sample pastes increased with increasing lipid and protein concentrations but the results showed the opposite for extruded samples. Increasing protein induced stronger pseudoplastic behavior of extruded pastes but the result showed the opposite with an increase the lipid concentration. Increasing sugar (10 to 30 %w/v), protein and lipid (0 to 0.21 %w/v) concentrations improved freeze-thaw stability of native and pregelatinized flour and starch, with the exception of the addition of lipid to drum dried samples. Instant mushroom soups were prepared with 12 % w/w of extruded and 5.5 % w/w of drum dried flour and starch at water temperature of 25 and 70°C. Soup was given a high sensory score by panelists (6.58 to 7.08, like slightly to like moderately) and showed no significant difference among native flour, starch and commercial soups. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Asian Institute of Technology, 2004 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Rice flour |
| General subdivision | Extrusion |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Starch |
| General subdivision | Extrusion |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Amylases |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Athapol Noomhorm, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jindal, Vinod Kumar, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ranamukhaarachchi, S.L., |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Rajamangala Institute of Technology, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Dissertation ; |
| Volume/sequential designation | no. PH-04-02 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B08621 ">http://203.159.5.9/ait-thesis/detail.php?q=B08621 </a> |
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| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
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| Cataloger's initials, CIN (RLIN) | 050729 |
| First date, FD (RLIN) | m |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120587679 |
| CREATED | CREATED : 2005-07-29 |
| RECORD Id | RECORD # : i12454138 |
| LPATRON | LPATRON : 1017219 |
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| CREATED | CREATED : 2005-07-29 |
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| Barcode | Barcode : 30050160040811 |
| CREATED | CREATED : 2016-03-17 |
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| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
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| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Diss. no.PH-04-02 | 30050120587679 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Diss. no.PH-04-02 | 30050120587661 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Diss. no.PH-04-02 | 30050160040811 | 18/08/2026 | 18/08/2026 | 40-Archives |