Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage
The onion was first pureed and then added with 0.5% ascorbic acid before it was γ-irradiated at 2 kGy. The puree was then stored at 4, 10 and 27C for up to 28 days. Changes monitored included pH, titratable acidity, total soluble solids, color, total bacteria and yeast counts, organic acids and sens...
| _version_ | 1825948914364186624 |
|---|---|
| author | Sadoughi, Navideh Karim, Roselina Mat Hashim, Dzulkifly Zainuri, Ahmad Mohd Ghazali, Hasanah |
| author_facet | Sadoughi, Navideh Karim, Roselina Mat Hashim, Dzulkifly Zainuri, Ahmad Mohd Ghazali, Hasanah |
| author_sort | Sadoughi, Navideh |
| collection | UPM |
| description | The onion was first pureed and then added with 0.5% ascorbic acid before it was γ-irradiated at 2 kGy. The puree was then stored at 4, 10 and 27C for up to 28 days. Changes monitored included pH, titratable acidity, total soluble solids, color, total bacteria and yeast counts, organic acids and sensory property of the puree. Results show that the combined treatments reduced the contamination levels of the total bacteria and yeasts, and it helped to stabilize the color, and other physicochemical properties, such as pH, acidity, organic acid composition and contents of cold-stored onion puree. This study has shown that onion puree kept the initial color of fresh onion puree after 2 kGy γ-irradiation if it contained 0.5% ascorbic acid and storage at 4C for 28 days. |
| first_indexed | 2024-03-06T08:36:26Z |
| format | Article |
| id | upm.eprints-36811 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:36:26Z |
| publishDate | 2015 |
| publisher | Wiley Periodicals |
| record_format | dspace |
| spelling | upm.eprints-368112016-05-17T07:07:02Z http://psasir.upm.edu.my/id/eprint/36811/ Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage Sadoughi, Navideh Karim, Roselina Mat Hashim, Dzulkifly Zainuri, Ahmad Mohd Ghazali, Hasanah The onion was first pureed and then added with 0.5% ascorbic acid before it was γ-irradiated at 2 kGy. The puree was then stored at 4, 10 and 27C for up to 28 days. Changes monitored included pH, titratable acidity, total soluble solids, color, total bacteria and yeast counts, organic acids and sensory property of the puree. Results show that the combined treatments reduced the contamination levels of the total bacteria and yeasts, and it helped to stabilize the color, and other physicochemical properties, such as pH, acidity, organic acid composition and contents of cold-stored onion puree. This study has shown that onion puree kept the initial color of fresh onion puree after 2 kGy γ-irradiation if it contained 0.5% ascorbic acid and storage at 4C for 28 days. Wiley Periodicals 2015-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36811/1/Combined%20effects%20of%20%CE%B3-irradiation%20and%20ascorbic%20acid%20on%20the%20physicochemical%20properties%2C%20microbial%20stability%20and%20aroma%20profile%20of%20onion%20puree%20during%20storage.pdf Sadoughi, Navideh and Karim, Roselina and Mat Hashim, Dzulkifly and Zainuri, Ahmad and Mohd Ghazali, Hasanah (2015) Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage. Journal of Food Processing and Preservation, 39 (6). pp. 645-652. ISSN 1745-4549 http://onlinelibrary.wiley.com/doi/10.1111/jfpp.12272/abstract 10.1111/jfpp.12272 |
| spellingShingle | Sadoughi, Navideh Karim, Roselina Mat Hashim, Dzulkifly Zainuri, Ahmad Mohd Ghazali, Hasanah Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title | Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title_full | Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title_fullStr | Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title_full_unstemmed | Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title_short | Combined effects of γ-irradiation and ascorbic acid on the physicochemical properties, microbial stability and aroma profile of onion puree during storage |
| title_sort | combined effects of γ irradiation and ascorbic acid on the physicochemical properties microbial stability and aroma profile of onion puree during storage |
| url | http://psasir.upm.edu.my/id/eprint/36811/1/Combined%20effects%20of%20%CE%B3-irradiation%20and%20ascorbic%20acid%20on%20the%20physicochemical%20properties%2C%20microbial%20stability%20and%20aroma%20profile%20of%20onion%20puree%20during%20storage.pdf |
| work_keys_str_mv | AT sadoughinavideh combinedeffectsofgirradiationandascorbicacidonthephysicochemicalpropertiesmicrobialstabilityandaromaprofileofonionpureeduringstorage AT karimroselina combinedeffectsofgirradiationandascorbicacidonthephysicochemicalpropertiesmicrobialstabilityandaromaprofileofonionpureeduringstorage AT mathashimdzulkifly combinedeffectsofgirradiationandascorbicacidonthephysicochemicalpropertiesmicrobialstabilityandaromaprofileofonionpureeduringstorage AT zainuriahmad combinedeffectsofgirradiationandascorbicacidonthephysicochemicalpropertiesmicrobialstabilityandaromaprofileofonionpureeduringstorage AT mohdghazalihasanah combinedeffectsofgirradiationandascorbicacidonthephysicochemicalpropertiesmicrobialstabilityandaromaprofileofonionpureeduringstorage |