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A simple method for identification of irradiated spices

Journal Article:

Abstract

Thermoluminescence (TL) properties of curry powder, a salt containing spice mixture, and three different ground spices, viz, chilli, turmeric and pepper, were compared with TL of table salt. The spices other than curry powder, did not exhibit characteristic TL in the absence of salt. Therefore studies were initiated to develop a simple and reliable method using common salt for distinguishing irradiated spices (10 kGy) from unirradiated ones under normal conditions of storage. Common salt exhibited a characteristic TL glow at 170{sup o}C. However, when present in curry powder, the TL glow of salt showed a shift to 208{sup o}C. It was further observed that upon storage up to 6 months, the TL of irradiated curry powder retained about 10% of the original intensity and still could be distinguished from the untreated samples. From our results it is evident that common salt could be used as an indicator either internally or externally in small sachets for incorporating into prepacked spices. (author).
Authors:
Behere, A; Desai, S R.P.; Nair, P M; [1]  Rao, S M.D. [2] 
  1. Bhabha Atomic Research Centre, Bombay (India). Food Technology and Enzyme Engineering Div.
  2. Bhabha Atomic Research Centre, Bombay (India). Technical Physics and Prototype Engineering Div.
Publication Date:
Jul 01, 1992
Product Type:
Journal Article
Reference Number:
AIX-23-086405; EDB-92-181378
Resource Relation:
Journal Name: Radiation Physics and Chemistry (International Journal of Radiation Applications and Instrumentation, Part C); (United Kingdom); Journal Volume: 40:1
Subject:
60 APPLIED LIFE SCIENCES; SODIUM CHLORIDES; THERMOLUMINESCENCE; SPICES; RADIODISINFESTATION; GAMMA RADIATION; ALKALI METAL COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; DISINFESTATION; ELECTROMAGNETIC RADIATION; HALIDES; HALOGEN COMPOUNDS; IONIZING RADIATIONS; IRRADIATION; LUMINESCENCE; RADIATIONS; SODIUM COMPOUNDS; 553004* - Agriculture & Food Technology- Food Protection & Preservation- (1987-)
OSTI ID:
7006029
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0146-5724; CODEN: RPCHD
Submitting Site:
GBN
Size:
Pages: 27-30
Announcement Date:

Journal Article:

Citation Formats

Behere, A, Desai, S R.P., Nair, P M, and Rao, S M.D. A simple method for identification of irradiated spices. United Kingdom: N. p., 1992. Web.
Behere, A, Desai, S R.P., Nair, P M, & Rao, S M.D. A simple method for identification of irradiated spices. United Kingdom.
Behere, A, Desai, S R.P., Nair, P M, and Rao, S M.D. 1992. "A simple method for identification of irradiated spices." United Kingdom.
@misc{etde_7006029,
title = {A simple method for identification of irradiated spices}
author = {Behere, A, Desai, S R.P., Nair, P M, and Rao, S M.D.}
abstractNote = {Thermoluminescence (TL) properties of curry powder, a salt containing spice mixture, and three different ground spices, viz, chilli, turmeric and pepper, were compared with TL of table salt. The spices other than curry powder, did not exhibit characteristic TL in the absence of salt. Therefore studies were initiated to develop a simple and reliable method using common salt for distinguishing irradiated spices (10 kGy) from unirradiated ones under normal conditions of storage. Common salt exhibited a characteristic TL glow at 170{sup o}C. However, when present in curry powder, the TL glow of salt showed a shift to 208{sup o}C. It was further observed that upon storage up to 6 months, the TL of irradiated curry powder retained about 10% of the original intensity and still could be distinguished from the untreated samples. From our results it is evident that common salt could be used as an indicator either internally or externally in small sachets for incorporating into prepacked spices. (author).}
journal = {Radiation Physics and Chemistry (International Journal of Radiation Applications and Instrumentation, Part C); (United Kingdom)}
volume = {40:1}
journal type = {AC}
place = {United Kingdom}
year = {1992}
month = {Jul}
}