MARC details
| 000 -LEADER |
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| fixed length control field |
02716nam a22003377a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250714092042.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250714b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
TUPM |
| Language of cataloging |
English |
| Transcribing agency |
TUPM |
| Modifying agency |
TUPM |
| Description conventions |
rda |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
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| Classification number |
BTH TK 146 |
| Item number |
A53 2025 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Anda, Ariel Jr. M. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
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| Title |
Plusma: |
| Remainder of title |
modular dielectric barrier discharge (dbd) cold plasma sterilization device for inactivating escherichia coli on tomatoes and strawberries/ |
| Statement of responsibility, etc. |
Ariel Jr. M. Anda, Jea B. Gorpio, John Albert L. Mariano, John Rhey T. Ugates, Rose Angeline L. Venturero, and Rigel R. Villaroman.-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
ii, 133pages: |
| Dimensions |
29cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| 500 ## - GENERAL NOTE |
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| General note |
Bachelor's thesis<br/> |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
College Of Engineering.-- |
| Degree type |
Bachelor of science in electronics engineering: |
| Name of granting institution |
Technological University of the Philippines,<br/> |
| Year degree granted |
2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographic references and index. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Contaminated food causes health problems. E. coli in food points to a need for<br/>better ways to sterilize. A study describes the PlusMA Cold Plasma Sterilization Device.<br/>This device uses a pulsed, high voltage plasma at 60 kilovolts DC and 50 kilohertz - it<br/>cleans E. coli from tomatoes and strawberries. Researchers bought the fruit at public<br/>markets. The device uses a Dielectric Barrier Discharge setup. Gold-plated copper<br/>electrodes are in the device. An FR4 barrier separates the electrodes. The device creates<br/>reactive particles in the air - these particles inactivate microbes without heat or chemicals.<br/>The test results showed a large drop in Colony Forming Units. Tomatoes decreased from<br/>4,600 to 2,600 CFU per gram in four minutes. Strawberries went from 260,000 to 57,000<br/>CFU per gram in seven minutes.<br/>Statistical analyses, including t-tests (p < 0.001) and ANOVA (F = 11.898, p =<br/>0.008), confirmed the treatment’s effectiveness. Log-linear regression indicated a D-value<br/>of approximately 11 minutes, demonstrating a time-dependent reduction in microbial load.<br/>These findings show that cold plasma treatment effectively reduces contamination without<br/>heat or chemicals, offering a promising method for preserving the safety, physical integrity,<br/>and nutritional quality of fresh produce. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Contaminated produce |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Copper electrodes |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
FR4 insulator |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Gorpio, Jea B. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Mariano, John Albert L. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ugates, John Rhey T. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Venturero, Rose Angeline L. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Villaroman, Rigel R. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis COE |
| Suppress in OPAC |
No |