Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage
Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus (AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit UKM
2011
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| Online Access: | http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf |
| _version_ | 1825725131954061312 |
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| author | Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail, |
| author_facet | Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail, |
| author_sort | Chew SC, |
| collection | UKM |
| description | Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus
(AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrite content than AP (1262 ± 2.12 mg/kg). Nitrites content was 506 ± 2 and 825 ± 3.5 mg/kg for AG and AP, respectively. Reheating and storage times significantly
increased the conversion of nitrate to nitrite in AG and AP. Storage at 0 and 4oC exhibited a significant change (P <
0.05) in nitrate and nitrite contents for both samples. Higher nitrite content was found in AP when stored at 4oC and 0oC. The present study indicated that storage time and temperature affected the nitrite contents in blanched AG and AP when stored in low temperatures. Apart from that reheating was also found to increase the formation of nitrite. |
| first_indexed | 2024-03-06T03:50:40Z |
| format | Article |
| id | ukm.eprints-3601 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T03:50:40Z |
| publishDate | 2011 |
| publisher | Penerbit UKM |
| record_format | dspace |
| spelling | ukm.eprints-36012016-12-14T06:34:55Z http://journalarticle.ukm.my/3601/ Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail, Changes in nitrate and nitrite contents (leaves and stem) of Amaranthus gangeticus (AG) and Amaranthus paniculatus (AP), resulting from blanching, storage time (0-4 days), storage temperature (0 and 4ºC), and reheating were analysed.Results showed that fresh AG (1859 ± 7.07 mg/kg) had higher nitrite content than AP (1262 ± 2.12 mg/kg). Nitrites content was 506 ± 2 and 825 ± 3.5 mg/kg for AG and AP, respectively. Reheating and storage times significantly increased the conversion of nitrate to nitrite in AG and AP. Storage at 0 and 4oC exhibited a significant change (P < 0.05) in nitrate and nitrite contents for both samples. Higher nitrite content was found in AP when stored at 4oC and 0oC. The present study indicated that storage time and temperature affected the nitrite contents in blanched AG and AP when stored in low temperatures. Apart from that reheating was also found to increase the formation of nitrite. Penerbit UKM 2011 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf Chew SC, and K. Nagendra Prasad Yang Bao, and Amin Ismail, (2011) Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage. Jurnal Sains Kesihatan Malaysia, 9 (1). pp. 29-34. ISSN 1675-8161 http://www.fsk.ukm.my/jurnal/jilid%209%281%29%202011/Chap%205_terbitan%209.1%20%282011%29.pdf |
| spellingShingle | Chew SC, K. Nagendra Prasad Yang Bao, Amin Ismail, Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title | Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title_full | Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title_fullStr | Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title_full_unstemmed | Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title_short | Changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| title_sort | changes in nitrate and nitrite levels of blanched amaranthus during refrigeration storage |
| url | http://journalarticle.ukm.my/3601/1/Changes_in_Nitrate_and_Nitrite_Levels_of_Blanched_Amaranthus_During.pdf |
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