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Continuous steam sterilization segme...

Anderson, Nathan M.

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Continuous steam sterilization segmented flow aseptic processing of particle foods.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Continuous steam sterilization segmented flow aseptic processing of particle foods./
作者:	Anderson, Nathan M.
面頁冊數:	224 p.
附註:	Adviser: Paul N. Walker.
Contained By:	Dissertation Abstracts International67-08B.
標題:	Agriculture, Food Science and Technology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3231799
ISBN:	9780542842276

Continuous steam sterilization segmented flow aseptic processing of particle foods.
Anderson, Nathan M.

Continuous steam sterilization segmented flow aseptic processing of particle foods. - 224 p.

Adviser: Paul N. Walker.

Thesis (Ph.D.)--The Pennsylvania State University, 2006.

A continuous steam sterilization unit capable of producing shelf-stable aseptically processed particulate foods of high quality was developed. The system utilizes steam as the heating medium to achieve better heat transfer and segmented-flow technology to produce a smaller residence time distribution than pipe-flow aseptic processing.

ISBN: 9780542842276Subjects--Topical Terms:

1017813
Agriculture, Food Science and Technology.

Continuous steam sterilization segmented flow aseptic processing of particle foods.
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245 1 0 $a Continuous steam sterilization segmented flow aseptic processing of particle foods.
300 $a 224 p.
500 $a Adviser: Paul N. Walker.
500 $a Source: Dissertation Abstracts International, Volume: 67-08, Section: B, page: 4543.
502 $a Thesis (Ph.D.)--The Pennsylvania State University, 2006.
520 $a A continuous steam sterilization unit capable of producing shelf-stable aseptically processed particulate foods of high quality was developed. The system utilizes steam as the heating medium to achieve better heat transfer and segmented-flow technology to produce a smaller residence time distribution than pipe-flow aseptic processing.
520 $a A temperature penetration test was used as the foundation for developing a scheduled thermal process using microbiological kinetics. Most conservative process times of 11.04 and 3.74 minutes to achieve a 5D process for Clostridium sporogenes for whole and sliced mushrooms, respectively, were calculated from temperature penetration data. Aseptic processing times are less than would typically be encountered in conventional canning of mushrooms.
520 $a When compared to conventionally canned mushrooms, aseptically processed yield (weight basis) increased 6.1% (SD=2.9%) and 6.6% (SD=2.2%), whiteness (L) improved 3.1% (SD=1.9%) and 4.7% (SD=0.7%), color difference (DeltaE) improved 6.0% (SD=1.3%) and 8.5% (SD=1.5%), and texture improved 3.9% (SD=1.7%) and 4.6% (SD=4.2%) for whole and sliced mushrooms, respectively. The segmented-flow processing system utilized high temperature, short time (HTST) processing conditions, eliminated a separate blanching step, eliminated the unnecessary packaging of water and promoted the use of bag-in-box and other versatile aseptic packaging methods.
520 $a Inoculated pack studies proved the development of a scheduled process based on temperature penetration data of the slowest heating particle lead to predictable destruction of Clostridium sporogenes spores. At an inoculation level of approximately 103 CFU/container, viable spores were eliminated after 9.3 minutes process time, indicating that 11.0 minutes of process time used in this study could be likely be reduced to approximately 10 minutes.
520 $a Following aseptic processing, mass had decreased 24.4% (SD=2.9%) and 55.9% (SD=3.1%), volume 51.8% (SD=1.9%) and 56.8% (SD=3.3%), and characteristic mushroom dimensions 4.7% (SD=5.8%) to 28.4% (SD=5.2%) and 9.0% (SD=3.8%) to 30.4% (SD=4.4%) for aseptically processed versus raw, and aseptically processed versus vacuum hydrated mushrooms, respectively. However, on average, length decreased 96.6% and 63.8% more than diameter. Vacuum hydration increased moisture content (dry basis) by 71.5% relative to raw mushrooms. Aseptic processing decreased moisture content (dry basis) by 27.4% and 57.7% relative to raw and vacuum hydrated mushrooms, respectively.
590 $a School code: 0176.
650 4 $a Agriculture, Food Science and Technology. $3 1017813
650 4 $a Engineering, Agricultural. $3 1019504
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710 2 $a The Pennsylvania State University. $3 699896
773 0 $t Dissertation Abstracts International $g 67-08B.
790 $a 0176
790 1 0 $a Walker, Paul N., $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3231799